Rtaf Svx001a en

Installation, Operation,
and Maintenance
Sintesis™ Air-Cooled Chillers

Model RTAF
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing
of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and
training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or
serious injury. When working on the equipment, observe all precautions in the literature and on the tags,
stickers, and labels that are attached to the equipment.
June 2015 RTAF-SVX001A-EN

Introduction
Read this manual thoroughly before operating or servicing
this unit.
WARNING
Warnings, Cautions, and Notices Proper Field Wiring and Grounding
Required!
Safety advisories appear throughout this manual as
required.Your personal safety and the proper operation of Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
this machine depend upon the strict observance of these
personnel. Improperly installed and grounded field
precautions. wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
The three types of advisories are defined as follows: NEC and your local/state electrical codes.
Indicates a potentially hazardous

WARNING situation which, if not avoided, could WARNING
result in death or serious injury. Personal Protective Equipment (PPE)
Indicates a potentially hazardous Required!
CAUTIONs situation which, if not avoided, could
result in minor or moderate injury. It Installing/servicing this unit could result in exposure to
could also be used to alert against electrical, mechanical and chemical hazards.
unsafe practices. • Before installing/servicing this unit, technicians
NOTICE Indicates a situation that could result in MUST put on all PPE required for the work being
equipment or property-damage only undertaken (Examples; cut resistant gloves/sleeves,
accidents. butyl gloves, safety glasses, hard hat/bump cap, fall
protection, electrical PPE and arc flash clothing).
Important Environmental Concerns ALWAYS refer to appropriate Material Safety Data
Sheets (MSDS)/Safety Data Sheets (SDS) and OSHA
Scientific research has shown that certain man-made
guidelines for proper PPE.
chemicals can affect the earth’s naturally occurring
stratospheric ozone layer when released to the • When working with or around hazardous chemicals,
atmosphere. In particular, several of the identified ALWAYS refer to the appropriate MSDS/SDS and
chemicals that may affect the ozone layer are refrigerants OSHA/GHS (Global Harmonized System of
that contain Chlorine, Fluorine and Carbon (CFCs) and Classification and Labelling of Chemicals) guidelines
those containing Hydrogen, Chlorine, Fluorine and for information on allowable personal exposure
Carbon (HCFCs). Not all refrigerants containing these levels, proper respiratory protection and handling
compounds have the same potential impact to the instructions.
environment.Trane advocates the responsible handling of • If there is a risk of energized electrical contact, arc, or
all refrigerants-including industry replacements for CFCs flash, technicians MUST put on all PPE in accordance
such as HCFCs and HFCs. with OSHA, NFPA 70E, or other country-specific
requirements for arc flash protection, PRIOR to
Important Responsible Refrigerant servicing the unit. NEVER PERFORM ANY
Practices SWITCHING, DISCONNECTING, OR VOLTAGE
Trane believes that responsible refrigerant practices are TESTING WITHOUT PROPER ELECTRICAL PPE AND
important to the environment, our customers, and the air ARC FLASH CLOTHING. ENSURE ELECTRICAL
conditioning industry. All technicians who handle METERS AND EQUIPMENT ARE PROPERLY RATED
refrigerants must be certified.The Federal Clean Air Act FOR INTENDED VOLTAGE.
(Section 608) sets forth the requirements for handling, Failure to follow instructions could result in death or
reclaiming, recovering and recycling of certain serious injury.
refrigerants and the equipment that is used in these
service procedures. In addition, some states or
municipalities may have additional requirements that
must also be adhered to for responsible management of
refrigerants. Know the applicable laws and follow them.
© 2015Trane All rights reserved RTAF-SVX001A-EN

Introduction
WARNING
Refrigerant under High Pressure!
Failure to follow instructions below could result in an
explosion which could result in death or serious injury
or equipment damage. System contains oil and
refrigerant under high pressure. Recover refrigerant to
relieve pressure before opening the system. See unit
nameplate for refrigerant type. Do not use non-
approved refrigerants, refrigerant substitutes, or
refrigerant additives.
Factory Warranty Information

Compliance with the following is required to preserve the
factory warranty:
All Unit Installations
Startup MUST be performed byTrane, or an authorized
agent ofTrane, to VALIDATE this WARRANTY. Contractor
must provide a two-week startup notification toTrane (or
an agent ofTrane specifically authorized to perform
startup).
Copyright
This document and the information in it are the property of
Trane, and may not be used or reproduced in whole or in
part without written permission.Trane reserves the right
to revise this publication at any time, and to make changes
to its content without obligation to notify any person of
such revision or change.
Trademarks
All trademarks referenced in this document are the
trademarks of their respective owners.
RTAF-SVX001A-EN 3
Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Water Treatment . . . . . . . . . . . . . . . . . . . .18
Warnings, Cautions, and Notices . . . . . . . . 2 Evaporator Piping . . . . . . . . . . . . . . . . . . . . .18
Important Environmental Concerns . . . . . 2 Evaporator Piping Components . . . . . . . .18
Important Responsible Refrigerant Entering Chilled Water Piping . . . . . . . . . .19
Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Leaving Chilled Water Piping . . . . . . . . . .19
Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Waterbox Drains and Vents . . . . . . . . . . .19
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . 4 Pressure Gauges . . . . . . . . . . . . . . . . . . . .19
Model Number Description . . . . . . . . . . . . . . . 6 Pressure Relief Valves . . . . . . . . . . . . . . . .19
Nameplates . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Evaporator Flow Switch . . . . . . . . . . . . . .20
Outdoor Unit Nameplate . . . . . . . . . . . . . . 6 Evaporator Waterside . . . . . . . . . . . . . . . . . .21
Compressor Nameplate . . . . . . . . . . . . . . . 6 Pressure Drop Curves . . . . . . . . . . . . . . . .21
Model Number Descriptions . . . . . . . . . . . . . . 7 Freeze Avoidance . . . . . . . . . . . . . . . . . . . . . .23
Unit Model Number . . . . . . . . . . . . . . . . . . . . 7 Low Evaporator Refrigerant Cutout and
Compressor Model Number . . . . . . . . . . . . 8 Glycol Requirements . . . . . . . . . . . . . . . . .24
Compressor Serial Number . . . . . . . . . . . . . 8 Installation Electrical . . . . . . . . . . . . . . . . . . . . .25
General Information . . . . . . . . . . . . . . . . . . . . . 9 General Recommendations . . . . . . . . . . . . .25
Accessories and Loose Parts . . . . . . . . . . . . 9 Installer-Supplied Components . . . . . . . . . .25
General Data . . . . . . . . . . . . . . . . . . . . . . . . . 10 Power Supply Wiring . . . . . . . . . . . . . . . . .25
Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . 11 Control Power Supply . . . . . . . . . . . . . . . .25
Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Programmable Relays . . . . . . . . . . . . . . . . . .27

Inspection Checklist . . . . . . . . . . . . . . . . . 11 Relay Assignments Using
Tracer TU . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Low Voltage Wiring . . . . . . . . . . . . . . . . . . . .28
Installation Requirements . . . . . . . . . . . . . . 12
Emergency Stop . . . . . . . . . . . . . . . . . . . . .28
Dimensions and Weights . . . . . . . . . . . . . . . . 13
External Auto/Stop . . . . . . . . . . . . . . . . . . .28
Service Clearance . . . . . . . . . . . . . . . . . . . . 13
Ice Building Option . . . . . . . . . . . . . . . . . .28
Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . 13
External Chilled Water Setpoint (ECWS)
Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Installation Mechanical . . . . . . . . . . . . . . . . . . 14 External Demand Limit Setpoint (EDLS)
Location Requirements . . . . . . . . . . . . . . . . 14 Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Sound Considerations . . . . . . . . . . . . . . . 14 Chilled Water Reset (CWR) . . . . . . . . . . . .29
Foundation . . . . . . . . . . . . . . . . . . . . . . . . 14 AFD Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Clearances . . . . . . . . . . . . . . . . . . . . . . . . . 14 AFD Drive Installation . . . . . . . . . . . . . . . .31
Lifting and Moving Instructions . . . . . . . . 14 Communication Interfaces . . . . . . . . . . . . . .32
Center of Gravity . . . . . . . . . . . . . . . . . . . . . 15 LonTalk Interface (LCI-C) . . . . . . . . . . . . . .32
Isolation and Sound Emission . . . . . . . . . . 16 BACnet Interface (BCI-C) . . . . . . . . . . . . . .32
Unit Isolation and Leveling . . . . . . . . . . . 16 Modbus Remote Terminal Unit Interface .32
Chilled Water Piping Recommendations . 18 Operating Principles . . . . . . . . . . . . . . . . . . . . .33

Drainage . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Refrigerant Circuit . . . . . . . . . . . . . . . . . . . . .33
4 RTAF-SVX001A-EN
Table of Contents
Refrigerant Cycle . . . . . . . . . . . . . . . . . . . . . 33 Running (Lag Compressor/Circuit Start

and Run) . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Refrigerant and Oil . . . . . . . . . . . . . . . . . . . . 33
Satisfied Setpoint . . . . . . . . . . . . . . . . . . . .57
Compressor and Lube Oil System . . . . . . 33
Normal Shutdown to Stopped
Condenser and Fans . . . . . . . . . . . . . . . . . . 33
or Run Inhibit . . . . . . . . . . . . . . . . . . . . . . .58
Evaporator . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Immediate Shutdown to Stopped
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 or Run Inhibit . . . . . . . . . . . . . . . . . . . . . . .59
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Ice Making (Running to Ice Making
UC800 Specifications . . . . . . . . . . . . . . . . . . 35 to Running) . . . . . . . . . . . . . . . . . . . . . . . . .60
Wiring and Port Descriptions . . . . . . . . . 35 Ice Making (Auto to Ice Making to

Ice Making Complete) . . . . . . . . . . . . . . . .61
Communication Interfaces . . . . . . . . . . . . 36
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Rotary Switches . . . . . . . . . . . . . . . . . . . . 36
Recommended Maintenance . . . . . . . . . . . .62
LED Description and Operation . . . . . . . . 36
Weekly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Tracer AdaptiView TD7 Display . . . . . . . . . 36
Monthly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Operator Interface . . . . . . . . . . . . . . . . . . 36
Annual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .62
Main Display Area/Home Screen . . . . . . 36
Refrigerant and Oil
Viewing Chiller Operating Modes . . . . . 37 Charge Management . . . . . . . . . . . . . . . . . . .63
Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Lubrication System . . . . . . . . . . . . . . . . . . . .63
Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Oil Sump Level Check . . . . . . . . . . . . . . . .63
Equipment Settings . . . . . . . . . . . . . . . . . 42 Microchannel Condenser Coils . . . . . . . . . .65
Display Settings . . . . . . . . . . . . . . . . . . . . 44 Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . .65
Viewing the Settings Screen . . . . . . . . . 44 Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Cleaning the Display . . . . . . . . . . . . . . . . 45 AFD Diagnostics . . . . . . . . . . . . . . . . . . . . . . .67
Security Settings . . . . . . . . . . . . . . . . . . . 45 Starter Diagnostics . . . . . . . . . . . . . . . . . . . .67
Disabling/Enabling Security . . . . . . . . . . 45 Main Processor Diagnostics . . . . . . . . . . . . .69
Tracer TU . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Communication Diagnostics . . . . . . . . . . . .79
Pre-Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85
Start-Up and Shutdown . . . . . . . . . . . . . . . . . 49 Log and Check Sheets . . . . . . . . . . . . . . . . . . .86
Unit Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . 49
Temporary Shutdown And Restart . . . . . . 49
Extended Shutdown Procedure . . . . . . . . . 49
Seasonal Unit Start-Up Procedure . . . . . . 50
System Restart After Extended Shutdown 50
Sequence of Operation . . . . . . . . . . . . . . . . 51
Software Operation Overview . . . . . . . . . 51
Timelines . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Power Up Diagram . . . . . . . . . . . . . . . . . . 52
Power Up to Starting . . . . . . . . . . . . . . . . 53
Stopped to Starting . . . . . . . . . . . . . . . . . 54
Running (Lead Compressor/Circuit Start
and Run) . . . . . . . . . . . . . . . . . . . . . . . . . . 55
RTAF-SVX001A-EN 5
Model Number Description
Nameplates An example of a typical unit model number (M/N) is:
RTAF 130E UA0V XUA2 N21X 1NXN CVSC AXXX XPAX
The Sintesis outdoor unit nameplates are applied to the 1XXX X
exterior of the Control Panel. A compressor nameplate is
Each position, or group of positions, in the model number
located on each compressor. When the unit arrives,
is used to represent a feature. Unit model number digits
compare all nameplate data with ordering, submittal, and
are selected and assigned in accordance with the
shipping information.
definitions as listed in “Unit Model Number,” p. 7. For
Outdoor Unit Nameplate example, position 08 of the unit model number above
contains the letter “E”. An “E” in this position means that
See Figure 1 for a typical unit nameplate.The outdoor unit the unit voltage is 460/60/3.
nameplate provides the following information:
• Unit model and size description. Compressor Nameplate
• Unit serial number. The compressor nameplate provides the following
information:
• Identifies unit electrical requirements.
• Compressor model number. See “Compressor Model
• Lists correct operating charges of R-134a and
Number,” p. 8.
refrigerant oil (Trane OIL00311).
• Compressor serial number. See “Compressor Serial
• Lists unit test pressures.
Number,” p. 8.
• Identifies installation, operation and maintenance and
• Compressor electrical characteristics.
service data literature.
• Utilization range.
• Lists drawing numbers for unit wiring diagrams.
• Recommended refrigerant.
Model Number Coding System
Model numbers are composed of numbers and letters that
represent features of the equipment. Shown below is a
sample of typical unit model number.
Figure 1. Typical unit nameplate
6 RTAF-SVX001A-EN
Model Number Descriptions
Unit Model Number
Digits 1, 2 — Unit Model Digit 18 — Evaporator Digit 31 — Electrical
RT = Rotary Chiller Configuration Accessories
Digit 3 — Unit Type 2 = 2-pass Evaporator X = No Convenience Outlet
T = 2-pass Evaporator P = 15A 115V Convenience Outlet
A = Air-cooled withTurbulators
Digit 32 — Remote
Digit 4 — Development Digit 19 — Evaporator Fluid Communication Options
Sequence Type X = None
F = Development Sequence 1 = Water B = BACnet® Interface
Digits 5-7 — Nominal Capacity 2 = Calcium Chloride M = Modbus™ Interface
115 = 115 NominalTons 3 = Ethylene Glycol L = LonTalk® Interface
130 = 130 NominalTons 4 = Propylene Glycol
5 = Methanol
Digit 33 — Hard Wire
150 = 150 NominalTons Communication
170 = 170 NominalTons Digit 20 — Water Connection
180 = 180 NominalTons X = None
X = Grooved Pipe Connection A = Hard Wired Bundle - All
200 = 200 NominalTons W = Grooved Pipe + Flange B = Remote Leaving WaterTemp
215 = 215 NominalTons
Digit 21 — Flow Switch Setpoint
Digit 8— Unit Voltage C = Remote LeavingTemp and
1 = Factory Installed - Other Fluid Demand Limit Setpoints
C = 380/60/3 15 cm/s D = Programmable Relay
D = 400/50/3 2 = Factory Installed - Water E = Programmable Relay and
E = 460/60/3 35 cm/s Leaving Water and Demand
Digit 9 — Manufacturing 3 = Factory Installed - Water Limit Setpoint
Location 45 cm/s F = Percent Capacity
U = Trane Commercial Systems, Digit 22 — Insulation G = Percent Capacity and Leaving
Pueblo, CO USA N = Factory Insulation Water and Demand Limit
All Cold Parts 0.75” Setpoint
Digits 10, 11— Design Sequence H = Percent Capacity and
XX = Factory assigned Digit 23 — Unit Application Programmable Relay
Digit 12 — Unit Efficiency X = Standard Ambient Digit 34 — Energy Meter
(14 to 115°F/-10 to 46°C)
H = High Efficiency X = N-one
L = Low Ambient
Digit 13— Unit Sound Package (-4 to 115°F/-20 to 46°C Digit 35 — Smart Flow Control
X = Standard Noise H = High Ambient X = None
(14 to 130°F/-10 to 54.4°C)
Digit 14 — Agency Listing W = Wide Ambient
U = UL/CUL Listing (-4 to 130°F/-20 to 54.4°C) Digit 36 — Structural Options
Digit 15 — Pressure Vessel Code Digit 24 — Condenser Fin A = Standard Unit Structure
A = ASME Pressure Vessel Code Options Digit 37 — Appearance Options
C = CRN or Canadian Equivalent N = Aluminum Microchannel X = No Appearance Options
Pressure Vessel Code
D = Australia Pressure Vessel Code Digit 25 — Fan Type Digit 38 — Unit Isolation
C = Variable Speed Fans X = None
Digit 16 — Factory Charge 1 = Elastomeric Isolators
1 = Refrigerant Charge R-513A Digit 26 — Oil Cooler
2 = Refrigerant Charge R-134a C = Oil Cooler Digit 39 — Shipping Package
3 = Nitrogen Charge X = No Shipping Package
Digit 27 — Compressor Starter A = Containerization Package
(R-513A Field Supplied)
4 = Nitrogen Charge V = Variable Speed Compressors T = Shipped withTarp Covering
(R-134a Field Supplied) Digit 28 — Incoming Power Line Full Unit
Digit 17 — Evaporator Connection Digits 40-42
Application 1 = Single Point Power Connection XXX= Reserved for future use
N = Standard Cooling Digit 29 — Power Line Digit 43 — Special Requirement
(above 40°F/5.5°C) Connection Type 0 = None
P = LowTemp Process Cooling
X = Terminal Block S = Special Requirement
(below 40°F/5.5°C)
C = Ice Making C = Circuit Breaker
H = Circuit Breaker with High Fault
Rated Control Panel
Digit 30— Short Circuit Current
Rating
A = Default Amp Short Circuit Rating
B = High Amp Short Circuit Rating
RTAF-SVX001A-EN 7
Model Number Descriptions
Compressor Model
Number
Digits 1-3 — Compressor Family
CHH= Positive displacement,
refrigerant, helical rotary,
hermetic compressor
Digit 4— Compressor Type
T = GP2+
Digit 5
0 = All compressors
Digit 6 — Frame Size
K = K Frame
L = L Frame
M = M Frame
N = N Frame
Digit 7 — Compressor Capacity
3 = GP2+ Smaller capacity (minor)
4 = GP2+ Larger capacity (major)
Compressor Serial
Number
Digits 1-2 — Year
YY = Last two digits of year of
manufacture
Digits 3-4 — Week
WW = Week of build, from 00 to 52
Digit 5 — Day
1 = Monday
2 = Tuesday
3 = Wednesday
4 = Thursday
5 = Friday
6 = Saturday
7 = sunday
Digits 6-8 — Coded Time Stamp
TTT = Used to ensure uniqueness of
serial number
Digit 9 — Assembly Line
L = Varies with facility
Digit 10— Build Location
A = Monterrey
8 RTAF-SVX001A-EN
General Information
The Sintesis RTAF units are helical-rotary type, air-cooled
chillers designed for outdoor installation.The refrigerant
circuits are factory-piped, leak tested and dehydrated.
Every unit is electrically tested for proper control
operation before shipment.
Chilled water inlet and outlet openings are covered for
shipment.The Sintesis RTAF featuresTrane’s exclusive
Adaptive Control™ logic, which monitors the control
variables that govern the operation of the chiller unit.
Adaptive control logic can adjust capacity variables to
avoid chiller shutdown when necessary, and keep
producing chilled water.The units feature two
independent refrigerant circuits. Each compressor is
controlled by a dedicated variable speed Adaptive
Frequency Drive. Each refrigerant circuit is provided with
filter, sight glass, electronic expansion valve, and charging
valves.The shell-and-tube CHIL™ (Compact-High
performance-Integrated design-Low charge) evaporator is
manufactured in accordance with the ASME standards or
other international codes. Each evaporator is fully
insulated and equipped with water drain and vent
connection.
Units are shipped with full oil charge and can be ordered
with either a factory refrigerant charge or optional
nitrogen charge.
Accessories and Loose Parts

Check all the accessories and loose parts that are shipped
with the unit against the shipping list. Included in these
items will be the water vessel drain plugs, rigging and
electrical diagrams, service literature, which are placed
inside the control panel and/or starter panel for shipment.
If optional elastomeric isolators are ordered with the unit
(model number digit 37=1) they are shipped mounted on
the horizontal support frame of the chiller.
RTAF-SVX001A-EN 9
General Information
General Data
Table 1. General data table
Unit Size (tons) 115 130 150 170 180 200 215
Compressor Model (ckt1/ckt 2)(a) 55/55 65/65 70/70 85/70 85/85 100/85 100/100
Quantity # 2 2 2 2 2 2 2
Evaporator
Water Connection Size in 4 4 5 5 5 6 6
2-Pass
Water Storage gal 14.0 15.8 19.3 20.6 21.6 21.9 23.9
L 53.1 59.9 73.2 78.0 81.9 82.8 90.5
Minimum Flow gpm 128 150 171 187 199 202 228
l/s 8.1 9.5 10.8 11.8 12.6 12.8 14.4
Maximum Flow gpm 470 551 626 684 731 742 835
l/s 29.7 34.8 39.5 43.2 46.1 46.8 52.7
Condenser
Qty of Coils (ckt 1/ckt 2) 5/5 5/5 6/6 6/6 6/6 7/7 7/7
Coil Length in 77.4 77.4 77.4 77.4 77.4 77.4 77.4
mm 1967 1967 1967 1967 1967 1967 1967
Coil Height in 47.8 47.8 47.8 47.8 47.8 47.8 47.8
mm 1214 1214 1214 1214 1214 1214 1214
Condenser Fans
Quantity (ckt 1/ckt 2) # 5/5 5/5 6/6 6/6 6/6 7/7 7/7
Diameter in 31.5 31.5 31.5 31.5 31.5 31.5 31.5
mm 800 800 800 800 800 800 800
Nominal speed rpm 810 810 810 810 810 909 909
Airflow cfm 9959 9959 9959 9959 9959 11230 11230
m3/s 4.7 4.7 4.7 4.7 4.7 5.3 5.3
Tip Speed ft/min 6673 6673 6673 6673 6673 7500 7500
m/s 33.9 33.9 33.9 33.9 33.9 38.1 38.1
Ambient Temperature Range
Standard Ambient °F (°C) 14 to 115 (-10 to 46)
Low Ambient °F (°C) -4 to 115 (-20 to 46)
High Ambient °F (°C) 14 to 130 (-10 to 54.4)
Wide Ambient °F (°C) -4 to 130 (-20 to 54.4)
General Unit
Refrigerant R-134a or R-513A
Refrigerant Ckts # 2 2 2 2 2 2 2
Minimum Load % 15 15 15 15 15 15 15
86.4/ 86.6/ 101.4/ 111.1/ 109.0/
Refrigerant Charge (ckt 1/ckt 2) lb 134.3/129.4 134.7/129.8
84.9 84.9 99.0 99.0 96.3
kg 39.2/38.5 39.3/38.5 46.0/44.9 50.4/44.9 49.5/43.7 60.9/58.7 61.1/59.0
Oil Trane Oil 00311 (bulk)/OIL00315 (1 gal)/OIL00317 (5 gal)
Oil Charge/ckt gal 1.53 1.56 1.56 1.56 1.64 1.96 2.01
L 5.8 5.9 5.9 5.9 6.2 7.4 7.6
(a) Nominal tonnage at 60 Hz.
10 RTAF-SVX001A-EN
Pre-Installation
Inspection
When the unit is delivered, verify that it is the correct unit
and that it is properly equipped.
Inspect all exterior components for visible damage. Report
any apparent damage or material shortage to the carrier
and make a “unit damage” notation on the carrier’s
delivery receipt. Specify the extent and type of damage
found and notify the appropriateTrane Sales Office.
Do not proceed with installation of a damaged unit without
sales office approval.
Inspection Checklist
To protect against loss due to damage incurred in transit,
complete the following checklist upon receipt of the unit.
• Inspect the individual pieces of the shipment before
accepting the unit. Check for obvious damage to the
unit or packing material.
• Inspect the unit for concealed damage as soon as
possible after delivery and before it is stored.
Concealed damage must be reported within 10 days
after receipt.
• If concealed damage is discovered, stop unpacking the
shipment. Do not remove damaged material from the
receiving location.Take photos of the damage, if
possible.The owner must provide reasonable
evidence that the damage did not occur after delivery.
• Notify the carrier’s terminal of the damage
immediately, by phone and by mail. Request an
immediate, joint inspection of the damage with the
carrier and the consignee.
• Notify theTrane sales representative and arrange for
repair. Do not repair the unit, however, until damage is
inspected by the transportation representative.
Storage
Extended storage of the unit prior to the installation
requires the following precautions:
Store the unit in a secured area, to avoid intentional
damages.
Close the suction, discharge and liquid-line isolation
valves.
At least every three months, connect a gauge and
manually check the pressure in the refrigerant circuit. If the
refrigerant pressure is below 13 Bar at 20°C (or 10 Bar at
10°C), call a qualified service organization and the
appropriateTrane sales office.
Note: If the unit is stored before servicing near a
construction site it is highly recommended to
protect micro-channel coils from any concrete
dust. Failure to do so may considerably reduce
reliability of the unit.
RTAF-SVX001A-EN 11
Pre-Installation
Installation Requirements
A list of the contractor responsibilities typically associated
with the unit installation process is provided in Table 2.
Table 2. Installation requirements

Trane Supplied Trane Supplied Field Supplied
Type Trane Installed Field Installed Field Installed
Foundation • Meet foundation requirements
• Safety chains
• Clevis connectors
Rigging
• Lifting beam
• Spreader bar
• Elastomeric isolators
Isolation • Elastomeric isolators (optional)
(optional)
• Circuit breakers (optional)
• Electrical connections to unit mounted starter
• Wiring sizes per submittal and NEC
• Circuit breakers • Terminal lugs
Electrical (optional) • Ground connection(s)
• Unit mounted starter • BAS wiring (optional)
• Control voltage wiring
• Chilled water pump contactor and wiring
• Option relays and wiring
• Taps for thermometers and gauges
• Thermometers
• Water flow pressure gauges
Water piping • Flow switch • Isolation and balancing valves in water piping
• Vents and drain
• Waterside pressure relief valves
• Water strainer
Insulation • Insulation • Insulation
Water Piping Connection Components • Grooved pipe • Flange kit (optional)
• R-134a or R-513A
refrigerant
Other Materials
• Dry nitrogen
(optional)
“Sintesis Model RTAF Installation
Completion Check Sheet and Request
for Trane Service”
(RTAF-ADF001*-EN,
see “Log and Check Sheets,” p. 86)
• Trane, or an agent of
Trane specifically
Chiller Start-up Commissioning(a) authorized to perform
start-up of Trane®
products
(a) Start-up must be performed by Trane or an agent of Trane specifically authorized to perform start-up and warranty of Trane® products. Contractor shall
provide Trane (or an agent of Trane specifically authorized to perform start-up) with notice of the scheduled start-up at least two weeks prior to the scheduled
start-up.
12 RTAF-SVX001A-EN
Dimensions and Weights
Service Clearance
Figure 2. RTAF service clearances
Notes:
• Area above unit required for operation, maintenance, replacement is shown (right side of unit, as facing
panel access and airflow. control panel). However, either side is acceptable.
NO OBSTRUCTIONS ABOVE UNIT • A full 36” (914 mm) clearance is required in front of the
• For installations with obstructions or multiple units, control panel. Must be measured from front of panel,
see Close Spacing and Restricted Airflow Bulletin RLC- not end of unit base.
PRB037*-EN. • Clearances shown are sufficient for tube pull.
• Clearance of 78” (1981 mm) on the side of the unit is
required for coil replacement. Preferred side for coil
Unit Dimensions
See unit submittals for specific unit dimensions and water connection locations.
Weights
Table 3. Sintesis unit weights
Shipping Weight Operating Weight

Unit Size (tons) lb kg lb kg
115 7974 3617 8091 3670
130 8071 3661 8203 3721
150 9467 4294 9628 4367
170 9497 4308 9669 4386
180 9821 4455 10002 4537
200 10829 4912 11012 4995
215 11155 5060 11355 5151
RTAF-SVX001A-EN 13
Installation Mechanical
Location Requirements Lifting and Moving Instructions
Sound Considerations WARNING
• Locate the unit away from sound-sensitive areas. Heavy Objects!
• Install the optional elastomeric isolators under the Failure to follow instructions below or properly lift unit
unit. See “Isolation and Sound Emission,” p. 16. could result in unit dropping and possibly crushing
operator/technician which could result in death or
• Chilled water piping should not be supported by chiller serious injury, and equipment or property-only damage.
frame. Ensure that all the lifting equipment used is properly
• Install rubber vibration isolators in all water piping. rated for the weight of the unit being lifted. Each of the
cables (chains or slings), hooks, and shackles used to
• Use flexible electrical conduit. lift the unit must be capable of supporting the entire
• Seal all wall penetrations. weight of the unit. Lifting cables (chains or slings) may
not be of the same length. Adjust as necessary for even
Note: Consult an acoustical engineer for critical unit lift.
applications
Foundation WARNING
Provide rigid, non-warping mounting pads or a concrete Improper Unit Lift!
foundation of sufficient strength and mass to support the Failure to properly lift unit could result in unit dropping
applicable operating weight (i.e., including completed and possibly crushing operator/technician which could
piping, and full operating charges of refrigerant, oil and result in death or serious injury, and equipment or
water). See Table 3, p. 13 for unit operating weights. Once property-only damage. Test lift unit approximately 24
in place, the unit must be level within 1/4” (6.4 mm) across inches to verify proper center of gravity lift point. To
the length and width of the unit.TheTrane Company is not avoid dropping of unit, reposition lifting point if unit is
responsible for equipment problems resulting from an not level.
improperly designed or constructed foundation.
WARNING
Clearances
Proper Lifting Configuration Required!
Provide enough space around the unit to allow the
Use only lift locations designated with label shown in
installation and maintenance personnel unrestricted
Figure 3. Do NOT use locations marked with label
access to all service points. See submittal drawings for the shown in Figure 4. Use unit lifting configuration as
unit dimensions, to provide sufficient clearance for the shown in Figure 5, p. 15. Other lifting arrangements
opening of control panel doors and unit service. See could result in death, serious injury or equipment
Figure 2, p. 13 for minimum clearances. In all cases, local damage.
codes which require additional clearances will take
precedence over these recommendations.
For close spacing information, see RLC-PRB037*-EN. Figure 3. Label - lift location
X39003897001A
Figure 4. Label - do not lift
X39003894001A
14 RTAF-SVX001A-EN
Center of Gravity
Figure 5. Lifting configuration — 4 point
Figure 6. Center of gravity
96” (2438mm)
Spreader Bar
Z
Y
Lifting Location 2
(Lifting location 3
located on other
X
side of unit)
Lifting Location 1
Control
Panel
(Lifting location 4 O
located on other side of unit)
Table 5. Centers of gravity

Table 4. Lift weights by location
CGx CGy CGz
Location
Tons in mm in mm in mm
1 2 3 4
115 93.0 2363 43.8 1112 36.7 932
Tons lb kg lb kg lb kg lb kg
130 93.1 2364 43.8 1112 36.4 926
115 2322 1053 2125 964 1662 747 1998 906
150 103.9 2638 43.7 1109 36.6 928
130 2215 1005 2292 1040 1808 820 1887 856
170 103.8 2636 43.7 1109 36.5 927
150 2575 1168 2655 1204 2159 979 2239 1016
180 104.4 2651 44.4 1128 35.9 912
170 2582 1171 2674 1213 2172 985 2241 1016
200 112.7 2862 42.9 1090 36.7 932
180 2600 1179 2802 1271 2224 1009 2376 1078
215 112.9 2867 43.6 1107 36.2 918
200 3071 1393 3059 1387 2447 1110 2435 1104
215 3113 1412 3195 1449 2482 1126 2565 1163
RTAF-SVX001A-EN 15
Isolation and Sound Emission

Figure 7. Elastomeric isolator
The most effective form of isolation is to locate the unit 6.25
away from any sound sensitive area. Structurally 5.0
1/2 - 13NC - 2B
transmitted sound can be reduced by elastomeric
vibration eliminators. Spring isolators are not
recommended. Consult an acoustical engineer in critical
sound applications. 4.63
For maximum isolation effect, isolate water lines and 0.56 in

electrical conduit. Wall sleeves and rubber isolated piping
hangers can be used to reduce the sound transmitted
Mounting molded in neoprene
through water piping.To reduce the sound transmitted
through electrical conduit, use flexible electrical conduit.
0.50 in 3.0
1.60±0.25
State and local codes on sound emissions should always
be considered. Since the environment in which a sound 2.75
source is located affects sound pressure, unit placement
must be carefully evaluated. Sound power levels for
0.38
Sintesis™ chillers are available on request.
Unit Isolation and Leveling

For additional reduction of sound and vibration, install the
optional elastomeric isolators. Table 6. Isolator specifications
Construct an isolated concrete pad for the unit or provide Type Color Ext Max Load (lbs) Max Deflection
concrete footings at the unit mounting points. Mount the
RDP-4 Black 61 1500 0.50
unit directly to the concrete pads or footings.
RDP-4 Red 62 2250 0.50
Level the unit using the base rail as a reference.The unit
RDP-4 Gray 64 4000 0.50
must be level within 1/4-in (6 mm) over the entire length
and width. Use shims as necessary to level the unit.
Elastomeric Isolators Figure 8. Mounting point locations(a)

Note: See unit submittal, or Table 7, p. 17 thru Table 8, 2 4 6 8
p. 17 for point weights, isolator location and
isolator selections.
Control panel
1. Secure the isolators to the mounting surface using the

mounting slots in the isolator base plate. Do not fully
tighten the isolator mounting bolts at this time.
2. Align the mounting holes in the base of the unit with
1 3 5 7
the threaded positioning pins on the top of the
(a) Quantity of isolators varies with unit. Shorter units will not use
isolators. locations 7 and 8. See submittal for actual number required
for specific unit.
3. Lower the unit onto the isolators and secure the
isolator to the unit with a nut.
4. Level the unit carefully. Fully tighten the isolator
mounting bolts.
16 RTAF-SVX001A-EN
Table 7. Point weights
Location
1 2 3 4 5 6 7 8
Tons lb kg lb kg lb kg lb kg lb kg lb kg lb kg lb kg
115 1567 711 1601 726 1496 678 1530 694 937 425 960 435 - - - -
130 1589 721 1623 736 1517 688 1551 704 951 431 973 442 - - - -
150 2342 1062 2386 1082 1420 644 1445 656 1009 457 1025 465 - - - -
170 2294 1041 2332 1058 1557 706 1586 719 940 427 959 435 - - - -
180 2169 984 2658 1206 1621 735 1489 675 1077 488 989 449 - - - -
200 2189 993 2162 974 1734 787 1702 772 923 419 907 411 711 322 699 317
215 2303 1045 2159 979 1761 799 1653 750 901 409 1271 576 673 305 634 287
Table 8. Isolator selections

Location
Tons 1 2 3 4 5 6 7 8
115 Red 62 Red 62 Red 62 Red 62 Black 61 Black 61 - -
130 Red 62 Red 62 Red 62 Red 62 Black 61 Black 61 - -
150 Gray 64 Gray 64 Red 62 Red 62 Black 61 Black 61 - -
200 Gray 64 Gray 64 Gray 64 Gray 64 Red 62 Red 62 Black 61 Black 61
215 Gray 64 Gray 64 Gray 64 Gray 64 Red 62 Red 62 Black 61 Black 61
RTAF-SVX001A-EN 17
Chilled Water Piping Evaporator Piping

Recommendations Evaporator water connections are grooved.
Thoroughly flush all water piping to the unit before making
Drainage the final piping connections to the unit. Components and
Locate the unit near a large capacity drain for water vessel layout will vary slightly, depending on the location of
drain-down during shutdown or repair. Evaporators are connections and the water sources.
provided with drain connections. A vent on top of An air vent is located on top of the evaporator at the chiller
evaporator waterbox prevents vacuum by allowing air into water inlet. Be sure to provide additional air vents at the
evaporator for complete drainage. All local and national highest points in the piping to remove air from the chilled
codes apply. water system. Install necessary pressure gauges to
monitor the entering and leaving chilled water pressure.
Water Treatment
Provide shut off valves in lines to the gauges to isolate
NOTICE: them from the system when they are not in use. Use
rubber vibration eliminators to prevent vibration
Proper Water Treatment! transmission through the water lines.
The use of untreated or improperly treated water could
result in scaling, erosion, corrosion, algae or slime. It is If desired, install thermometers in the lines to monitor
recommended that the services of a qualified water entering and leaving water line to control water flow
treatment specialist be engaged to determine what balance. Install shutoff valves on both the entering and
water treatment, if any, is required. Trane assumes no leaving water lines so that the evaporator can be isolated
responsibility for equipment failures which result from for service.
untreated or improperly treated water, or saline or
brackish water. NOTICE:
Equipment Damage!
Dirt, scale, products of corrosion, and other foreign
material will adversely affect heat transfer between the The chilled-water connections to the evaporator are to
water and system components. Foreign matter in the be “grooved pipe” type connections. Do not attempt to
weld these connections, because the heat generated
chilled-water system can also increase pressure drop and
from welding can cause microscopic and macroscopic
consequently, reduce water flow. Proper water treatment fractures on the cast iron water boxes that can lead to
must be determined locally, depending on the type of premature failure of the water box. An optional grooved
system and local water characteristics. pipe stub and coupling is available for welding on
flanges.
NOTICE: To prevent damage to chilled-water components, do not

allow evaporator pressure (maximum working pressure)
Equipment Damage! to exceed 150 psi (10.5 bar).
If using any commercial flushing/cleaning solution,
construct a temporary bypass around the unit to A pipe strainer must be installed in the entering water line.
prevent damage to internal components of the Failure to do so can allow waterborne debris to enter the
evaporator/condenser. Trane assumes no responsibility evaporator.
for equipment damage caused by flushing/cleaning
solutions or water-born debris. Evaporator Piping Components
Piping components include all devices and controls used
to provide proper water system operation and unit
operating safety. A typical RTAF evaporator piping is
shown below.
18 RTAF-SVX001A-EN
Figure 9. Evaporator water piping
6 4
B 7 2
8 3 A
2
1
2
8 C 2
3
1 Bypass Valve Pi Pressure Gauge

2 Isolation Valve FT Water Flow Switch
3 Vibration Isolators T1 Evaporator Water Inlet Temperature Sensor
4 Evaporator - End View (2-pass) T2 Evaporator Water Outlet Temperature Sensor
5 Evaporator Waterbox A Isolate unit for initial water loop cleaning
6 Vent B Vent must be installed at the high point of the line
7 Strainer C Drains must be installed at the low point of the line
8 Drain
Entering Chilled Water Piping Waterbox Drains and Vents

• Air vents to bleed the air from the system (to be placed RTAF chillers are equipped with two ½” drain connections:
on the highest point) one located on each waterbox. Waterboxes also include
• Water pressure gauges with shutoff valves vent connections to assist in bleeding air from the chilled
water loop.These vent connections should not be
• Vibration eliminators assumed to be capable of venting attached chilled water
• Shutoff (isolation) valves piping.
• Thermometers if desired (temperature readings Note: If evaporator will be drained for winter storage, the
available on chiller controller display) heaters must be disconnected to prevent
overheating.To drain properly, use pressurized air
• Clean-out tees
to ensure all water is removed from the evaporator.
• Pipe strainer
Pressure Gauges
Leaving Chilled Water Piping
Install field-supplied pressure components as shown in
• Air vents to bleed the air from the system (to be placed Table 9, p. 19. Locate pressure gauges or taps in a straight
on the highest point) run of pipe; avoid placing them near elbows.
• Water pressure gauges with shut off valves To read manifold pressure gauges, open one valve and
• Vibration eliminators close the other (depending on the side of the desired
reading) to prevent errors resulting from differently
• Shutoff (isolation) valves
calibrated gauges installed at unmatched elevations.
• Thermometers (temperature readings available on the
chiller controller display) Pressure Relief Valves
• Clean-out tees Install a water pressure relief valve in the evaporator inlet
• Balancing valve piping between evaporator and the inlet shutoff valve.
Water vessels with close-coupled shutoff valves have high
RTAF-SVX001A-EN 19
potential for hydrostatic pressure buildup on a water • A minimum distance of 5x pipe diameter must be
temperature increase. Refer to applicable local codes for maintained between flow switch and any bends,
relief valve installation. valves, changes in cross sections, etc.
Figure 10. Proper flow switch indexing
Evaporator Flow Switch
Top View
NOTICE:
Equipment Damage! Flow
Flow switch is on a 24V circuit. Do NOT apply 120V to Index
the flow switch. Incorrect voltage application could
cause damage to the flow switch.
The flow switch is factory-installed and programmed

based on the operating conditions submitted with the
The flow switch must have the dot
order.The leaving evaporator temperature, fluid type and in the shaded area to the left of this line
fluid concentration affect the selected flow switch. If the for proper indexing (±90° off Index).
operating conditions on the job site change, the flow
switch may need to be replaced. Contact your localTrane
Sales office for more information.
The sensor head includes 3 LEDs, two yellow and one
green.Wait 15 seconds after power is applied to the sensor
before evaluating LEDs for flow status. When wired
correctly and flow is established, only the green LED
should be lit. Following are the LED indicators:
• Green ON, both yellow OFF — Flow
• Green and outside yellow ON — No Flow
• Center yellow ON continuously — Miswire
NOTICE:
Equipment Damage!
Incorrect wiring of auxiliary contacts could cause
equipment damage.
If using auxiliary flow sensing, both yellow LEDs come on

initially when flow is stopped.The center yellow LED will
turn off after approximately 7 seconds.The LED indicators
are otherwise the same as indicated above.
Indexing Flow Switch

To properly index the flow switch, the following
requirements must be met:
• Dot must be at a position no greater than 90° off Index.
• Torque must be between 22 ft-lb and 74 ft-lb.
20 RTAF-SVX001A-EN
Evaporator Waterside
Pressure Drop Curves
Figure 11. Evaporator water pressure drop — 2-pass without turbulators

50
215T
45
200T
40 180T
35 170T
Pressure Drop (ft. H2O)
150T
30
130T
25
115T
20
15
10
0
0 100 200 300 400 500 600 700 800 900 1000
Water Flow (GPM)
RTAF-SVX001A-EN 21
Figure 12. Evaporator water pressure drop — 2-pass with turbulators
88.0 215T
80.0 200T
72.0 180T
170T
64.0
Pressure Drop (ft. H2O)
150T
56.0
130T
48.0
115T
40.0
32.0
24.0
16.0
8.0
0.0
0 100 200 300 400 500 600 700 800 900 1000
Water Flow (GPM)
22 RTAF-SVX001A-EN
Freeze Avoidance
One or more of the ambient freeze avoidance methods in
Table 9 must be used to protect the Sintesis™ chiller from
ambient freeze damage.
Table 9. RTAF freeze avoidance methods
Protects to
ambient
Method temperature Notes
• Heaters alone will provide low ambient protection down to -4°F (-20°C), but will NOT
protect the evaporator from freezing as a result of charge migration. Therefore, it is
required that water pump control be used in conjunction with heaters.
• Heaters are factory-installed on the evaporator and water piping and will protect them from freezing.
• Install heat tape on all water piping, pumps, and other components that may be damaged if exposed
to freezing temperatures. Heat tape must be designed for low ambient temperature applications. Heat
tape selection should be based on the lowest expected ambient temperature.
• Tracer™ UC800 controller can start the pump when freezing conditions are detected. For this option
the pump must to be controlled by the Sintesis unit and this function must be validated.
• Water circuit valves need to stay open at all times.
• Water pump control and heater combination will protect the evaporator provided power is
Water Pump Control available to the pump and the controller. This option will NOT protect the evaporator in the
Down to -4°F event of a power failure to the chiller unless backup power is supplied to the necessary
AND Heaters
components.
• When no chiller operation is possible and the pump is already off, UC800 pump control for freeze
protection will command the pump to turn:
ON if average of the evaporator entering water temperature, the evaporator leaving water
temperature, and the evaporator refrigerant pool temperature is less than Low Evaporator Refrigerant
Temperature Cutout (LERTC) + 4°F for a period of time.
OFF again if the evaporator refrigerant pool temperature rises above the LERTC + 6°F for a period
of time.
Note: Time period referenced for ON and Off conditions above is dependent on past running conditions
and present temperatures measured.
ON if entering OR leaving water temperature< LWTC for 30°F-sec (1.11°C-sec)
OFF again if water temperature > LWTC for 30 min
Varies. • Freeze protection can be accomplished by adding sufficient glycol to protect against freezing below
See “Low the lowest ambient expected.
Evaporator • Use of glycol type antifreeze reduces the cooling capacity of the unit and must be
Freeze Inhibitor Refrigerant Cutout considered in the design of the system specifications.
and Glycol
Requirements,”
p. 24
• Shut off the power supply to the unit and to all heaters.
Drain Water Circuit Below -4°F • Purge the water circuit.
• Blow out the evaporator to ensure no liquid is left in the evaporator and water lines.
NOTICE:
Evaporator Damage!
If insufficient concentration or no glycol is used, the
evaporator water flow must be controlled by the UC800
AND heaters must be used to avoid catastrophic
damage to the evaporator due to freezing. It is the
responsibility of the installing contractor and/or the
customer to ensure that a pump will start when called
upon by the chiller controls.
Even with water pump control, a power loss of as little
as 15 minutes under freezing conditions can damage
the evaporator. Only the proper addition of freeze
inhibitor or complete drainage of the water circuit can
ensure no evaporator damage in the event of a power
failure.
RTAF-SVX001A-EN 23
Low Evaporator Refrigerant Cutout and Glycol Requirements

The table below shows the low evaporator temperature Note: Table below should not be interpreted as
cutout for different glycol levels. Additional glycol beyond suggesting operating ability or performance
what is required for freeze protection will adversely effect characteristics at all tabulated glycol percentages.
unit performance.The unit efficiency will be reduced and Full unit simulation is required for proper
the saturated evaporator temperature will be reduced. For prediction of unit performance for specific
some operating conditions this effect can be significant. operating conditions. For information on specific
Always us the applied actual percent glycol to establish the conditions, contactTrane product support.
low refrigerant cutout and low water temperature cutout
setpoints.
Table 10. Low evaporator refrigerant temperature cutout (LERTC) and low water temperature cutout (LWTC)
Ethylene Glycol Propylene Glycol

Glycol Solution Minimum Minimum Glycol Solution Minimum Minimum
Percentage Freeze Point Recommended Recommended Percentage Freeze Point Recommended Recommended
(%) (°F) LERTC (°F) LWTC (°F) (%) (°F) LERTC (°F) LWTC (°F)
0 32.0 28.6 35.0 0 32.0 28.6 35.0
2 31.0 27.6 34.0 2 31.0 27.6 34.0
4 29.7 26.3 32.7 4 29.9 26.5 32.9
5 29.0 25.6 32.0 5 29.3 25.9 32.3
6 28.3 24.9 31.3 6 28.7 25.3 31.7
8 26.9 23.5 29.9 8 27.6 24.2 30.6
10 25.5 22.1 28.5 10 26.4 23.0 29.4
12 23.9 20.5 26.9 12 25.1 21.7 28.1
14 22.3 18.9 25.3 14 23.8 20.4 26.8
15 21.5 18.1 24.5 15 23.1 19.7 26.1
16 20.6 17.2 23.6 16 22.4 19.0 25.4
18 18.7 15.3 21.7 18 20.9 17.5 23.9
20 16.8 13.4 19.8 20 19.3 15.9 22.3
22 14.7 11.3 17.7 22 17.6 14.2 20.6
24 12.5 9.1 15.5 24 15.7 12.3 18.7
25 11.4 8.0 14.4 25 14.8 11.4 17.8
26 10.2 6.8 13.2 26 13.8 10.4 16.8
28 7.7 4.3 10.7 28 11.6 8.2 14.6
30 5.1 1.7 8.1 30 9.3 5.9 12.3
32 2.3 -1.1 5.3 32 6.8 3.4 9.8
34 -0.7 -4.1 5.0 34 4.1 0.7 7.1
35 -2.3 -5.0 5.0 35 2.7 -0.7 5.7
36 -3.9 -5.0 5.0 36 1.3 -2.1 5.0
38 -7.3 -5.0 5.0 38 -1.8 -5.0 5.0
40 -10.8 -5.0 5.0 40 -5.2 -5.0 5.0
42 -14.6 -5.0 5.0 42 -8.8 -5.0 5.0
44 -18.6 -5.0 5.0 44 -12.6 -5.0 5.0
45 -20.7 -5.0 5.0 45 -14.6 -5.0 5.0
46 -22.9 -5.0 5.0 46 -16.7 -5.0 5.0
48 -27.3 -5.0 5.0 48 -21.1 -5.0 5.0
50 -32.1 -5.0 5.0 50 -25.8 -5.0 5.0
24 RTAF-SVX001A-EN
Installation Electrical
General Recommendations Installer-Supplied Components
As you review this manual, keep in mind that: Power Supply Wiring
• All field-installed wiring must conform to National
Electric Code (NEC) guidelines, and any applicable NOTICE:
state and local codes. Be sure to satisfy proper
equipment grounding requirements per NEC.
Use Copper Conductors Only!
• Compressor motor and unit electrical data (including Failure to use copper conductors could result in
motor kW, voltage utilization range, rated load amps) equipment damage as unit terminals are not designed
to accept other types of conductors.
is listed on the chiller nameplate.
• All field-installed wiring must be checked for proper
Cut holes into the sides of the control panel for the
terminations, and for possible shorts or grounds.
appropriately-sized power wiring conduits.The wiring is
Note: Always refer to wiring diagrams shipped with passed through these conduits and connected to the
chiller or unit submittal for specific electrical terminal blocks or circuit breakers.
schematic and connection information.
To provide proper phasing of 3-phase input, see field
wiring drawings for correct wiring. Proper equipment
WARNING grounds must be provided to each ground connection in
Hazardous Voltage w/Capacitors! the panel.
Failure to disconnect power and discharge capacitors
before servicing could result in death or serious injury. Control Power Supply
Disconnect all electric power, including remote Chiller is provided with control power transformer. It is not
disconnects and discharge all motor start/run necessary to provide additional control power voltage to
capacitors before servicing. Follow proper lockout/
the unit. No other loads should be connected to the control
tagout procedures to ensure the power cannot be
inadvertently energized. For variable frequency drives or power transformer
other energy storing components provided by Trane or All units are factory-connected for appropriate labeled
others, refer to the appropriate manufacturer’s literature voltages.
for allowable waiting periods for discharge of
capacitors. Verify with an appropriate voltmeter that all Heater Power Supply
capacitors have discharged.
The evaporator shell is insulated from ambient air and
For additional information regarding the safe discharge protected from freezing for temperatures down to -4°F by
of capacitors, see PROD-SVB06A-EN shell trace heaters and two thermostatically-controlled
immersion heaters, combined with evaporator pump
WARNING activation throughTracer™ UC800. Whenever the
ambient temperature drops below 32°F, the thermostat
Proper Field Wiring and Grounding energizes the heaters and theTracer UC800 activates the
Required! pumps. If ambient temperatures below -4°F are expected,
Failure to follow code could result in death or serious contact yourTrane local office.
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for NOTICE:
field wiring installation and grounding as described in
NEC and your local/state electrical codes. Equipment Damage!
Control panel main processor does not verify
thermostat operation. A qualified technician must
NOTICE: confirm operation of the thermostat to avoid
Use Copper Conductors Only! catastrophic damage to the evaporator.
Failure to use copper conductors could result in
equipment damage as unit terminals are not designed
to accept other types of conductors. NOTICE:
Important: To prevent control malfunctions, do not run Equipment Damage!
low voltage wiring (<30 V) in conduit with If evaporator water is drained, evaporator heaters must
conductors carrying more than 30 volts. be disconnected to prevent overheating.
RTAF-SVX001A-EN 25
Chilled Water Pump Control In general, when there is either a non-latching or latching
diagnostic, the EWP relay is turned off as though there was
a zero time delay. Exceptions whereby the relay continues
NOTICE: to be energized occur with:
Equipment Damage! • Low Chilled Water Temperature diagnostic
If the microprocessor calls for a pump to start and (non-latching unless also accompanied by an Evap
water does not flow, the evaporator may be damaged Leaving WaterTemperature Sensor Diagnostic)
catastrophically. It is the responsibility of the installing or
contractor and/or the customer to ensure that a pump
will always be running when called upon by the chiller • Interrupt Failure diagnostic in which a compressor
controls. continues to draw current even after commanded to
have shutdown.
An evaporator water pump output relay closes when the
or
chiller is given a signal to go into the Auto mode of
operation from any source.The contact is opened to turn • Loss of Evaporator Water Flow diagnostic (non-
off the pump in the event of most machine level latching) and the unit is in the AUTO mode, after
diagnostics to prevent the build up of pump heat. initially having proven evaporator water flow.
The relay output is required to operate the Evaporator
Water Pump (EWP) contactor. Contacts should be
compatible with 115/240 VAC control circuit. Normally, the
EWP relay follows the AUTO mode of the chiller.Whenever
the chiller has no diagnostics and is in the AUTO mode,
regardless of where the auto command is coming from,
the normally open relay is energized. When the chiller
exits the AUTO mode, the relay is timed to open in an
adjustable (usingTechView) 0 to 30 minutes.The non-
AUTO modes in which the pump is stopped, include Reset,
Stop, External Stop, Remote Display Stop, Stopped by
Tracer, Start Inhibited by Low AmbientTemp, and Ice
Building complete.
Table 11. Pump Relay Operations
Chiller Mode Relay Operation

Auto Instant Close
Ice Building Instant Close
Tracer Override Timed Open
Stop Timed Open
Ice Complete Instant Open
Diagnostics Instant Open
When going from Stop to Auto, the EWP relay is energized

immediately. If evaporator water flow is not established in
20 minutes (for normal transition) or 4 minutes, 15
seconds (for pump commanded ON due to an override
safety), the UC800 de-energizes the EWP relay and
generates a non-latching diagnostic. If flow returns (e.g.
someone else is controlling the pump), the diagnostic is
cleared, the EWP is re-energized, and normal control
resumed.
If evaporator water flow is lost once it had been
established, the EWP relay remains energized and a non-
latching diagnostic is generated. If flow returns, the
diagnostic is cleared and the chiller returns to normal
operation.
26 RTAF-SVX001A-EN
Programmable Relays Table 12. Alarm and status relay output configuration
Description
A programmable relay concept provides for enunciation of
This relay output is energized any time either
certain events or states of the chiller, selected from a list of
the Low Evaporator Water Temperature – Unit
likely needs, while only using four physical output relays, Off or the Low Evaporator Temperature Ckt x
as shown in the field wiring diagram. – Unit Off diagnostics are active. This relay is
intended for use as an external interlock for a
The four relays are provided (generally with a Quad Relay field engineered and provided solution to
Output LLID) as part of the Programmable Relay Option. mitigate the freeze danger implied by these
The relays contacts are isolated Form C (SPDT), suitable diagnostics. Generally, this would be used in
cases where operation of the evaporator
for use with 120 VAC circuits drawing up to 2.8 amps Evaporator Water
water pump is unacceptable due to the
Freeze Avoidance
inductive, 7.2 amps resistive, or 1/3 HP and for 240 VAC system constraints, (i.e. such as mixing
Request
circuits drawing up to 0.5 amp resistive. unconditioned warm water with controlled
supply water as provided by other parallel
The list of events/states that can be assigned to the chillers. The relay’s output can provide the
programmable relays can be found in Table 12. Chiller method to close bypass valves so the
circulation becomes local to the evap and
events/Status description.The relay will be energized excludes the load, or can be used to defeat
when the event/state occurs. the evap pump override entirely while
initiating an independent source of heat / flow
to the evap.
Table 12. Alarm and status relay output configuration
This selection is desirable to provide an easy
Description way for a customer to defeat the effect of the
relay, if it has already been wired. For
This output is true whenever there is any instance, if the relay was normally
active latching shutdown diagnostic that None:
Alarm - Latching programmed as an “alarm” relay, and was
targets the Unit, Circuit, or any of the wired to a claxon, it may be desirable to
Compressors on a circuit. temporarily defeat the feature without
This output is true whenever there is any changing wiring.
active non-latching shutdown diagnostic that This relay will be energized when at least one
Alarm - NonLatching
targets the Unit, Circuit, or any of the Service request (for Maintenance alert condition (refer to Service
Compressors on a circuit. Unit, Compressor(s) or required message specification) occurs, as
This output is true whenever there is any water pump): long as at least one of associated
active latching or non-latching shutdown informational diagnostic(s) will be active.
Alarm
diagnostic that targets the Unit, Circuit, or
any of the Compressors on a circuit.
Relay Assignments Using
This output is true whenever there is any
Alarm Ckt 1
active latching or non-latching shutdown
diagnostic that targets Circuit 1, or any of the
Tracer TU
Compressors on Circuit 1.
Tracer™TU ServiceTool is used to install the
This output is true whenever there is any Programmable Relay Option package and assign any of
active latching or non-latching shutdown
Alarm Ckt 2 the above lists of events or status to each of the four relays
diagnostic that targets Circuit 2, or any of the
Compressors on Circuit 2. provided with the option.The relays to be programmed
This output is true whenever a circuit on the are referred to by the relay’s terminal numbers on the LLID
unit has been running in one of the limit board 1K23.
modes continuously for the Limit Relay
debounce time. A given limit or overlapping of The default assignments for the four available relays of the
Unit Limit Mode
different limits must be in effect continuously Programmable Relay option are:
for the debounce time prior to the output
becoming true. It will become false if no limits Table 13. Default assignments
are present for the debounce time.
Relay
The output is true whenever any compressor
Compressor Running Relay 0 Terminals J2-1, 2, 3 Head Pressure
is running.
The output is true whenever any compressor Relay 1 Terminals J2-4, 5, 6 Limit Mode
Circuit 1 Running
of Circuit 1 is running. Relay 2 Terminals J2-7, 8, 9 Alarm
The output is true whenever any compressor Relay 3 Terminals J2-10, 11, 12 Compressor Running
Circuit 2 Running
of Circuit 2 is running.
This output is true when Ice Building status is If any of the Alarm/Status relays are used, provide
Ice Building
active.
electrical power, 115 VAC with fused-disconnect to the
The output is true whenever the unit has
panel and wire through the appropriate relays (terminals
reached maximum capacity continuously for
Maximum Capacity the Max Capacity Relay s time. The output is on 1A10). Provide wiring (switched hot, neutral, and
false when the unit is not at maximum ground connections) to the remote annunciation devices.
capacity continuously for the filter time. Do not use power from the chiller’s control panel
transformer to power these remote devices. See the field
diagrams which are shipped with the unit.
RTAF-SVX001A-EN 27
Low Voltage Wiring Communicated input (Tracer) to initiate and command the
Ice Building mode.
The remote devices described below require low voltage UC800 also provides a “Front Panel IceTermination
wiring. All wiring to and from these remote input devices Setpoint”, settable throughTracer™TU, and adjustable
to the Control Panel must be made with shielded, twisted from 20 to 31°F (-6.7 to -0.5°C) in at least 1°F (1°C)
pair conductors. Be sure to ground the shielding only at increments.
the panel.
Note: When in the Ice Building mode, and the evaporator
Important: To prevent control malfunctions, do not run entering water temperature drops below the ice
low voltage wiring (<30 V) in conduit with termination setpoint, the chiller terminates the Ice
conductors carrying more than 30 volts. Building mode and changes to the Ice Building
Complete Mode.
Emergency Stop
UC800 provides auxiliary control for a customer specified/ NOTICE:
installed latching trip out. When this customer-furnished Equipment Damage!
remote contact 6S2 is provided, the chiller will run
Freeze inhibitor must be adequate for the leaving water
normally when the contact is closed. When the contact
temperature. Failure to do so will result in damage to
opens, the unit will trip on a manually resettable system components.
diagnostic.This condition requires manual reset at the
front of the control panel. Tracer™TU must also be used to enable or disable Ice
Connect low voltage leads to terminal strip locations on Machine Control.This setting does not prevent theTracer
1K2. Refer to the field diagrams that are shipped with the from commanding Ice Building mode.
unit. Upon contact closure, the UC800 will initiate an ice
Silver or gold-plated contacts are recommended.These building mode, in which the unit runs fully loaded at all
customer-furnished contacts must be compatible with 24 times. Ice building shall be terminated either by opening
VDC, 12 mA resistive load. the contact or based on the entering evaporator water
temperature. UC800 will not permit the ice building mode
External Auto/Stop to be reentered until the unit has been switched out of ice
If the unit requires the external Auto/Stop function, the building mode (open 5K3 contacts) and then switched back
installer must provide remote contact 6S1. into ice building mode (close 5K3 contacts.)
The chiller will run normally when the contacts are closed. In ice building, all limits (freeze avoidance, evaporator,
When either contact opens, the compressor(s), if condenser, current) will be ignored. All safeties will be
operating, will go to the RUN:UNLOAD operating mode enforced.
and cycle off. Unit operation will be inhibited. Closure of If, while in ice building mode, the unit gets down to the
the contacts will permit the unit to return to normal freeze stat setting (water or refrigerant), the unit will shut
operation. down on a manually resettable diagnostic, just as in
Field-supplied contacts for all low voltage connections normal operation.
must be compatible with dry circuit 24 VDC for a 12 mA Connect leads from 5K3 to the proper terminals of 1K22.
resistive load. Refer to the field diagrams that are shipped See the field diagrams which are shipped with the unit.
with the unit. Silver or gold-plated contacts are recommended.These
customer furnished contacts must be compatible with 24
Ice Building Option VDC, 12 mA resistive load.
UC800 provides auxiliary control for a customer specified/
installed contact closure for ice building if so configured External Chilled Water Setpoint (ECWS)
and enabled.This output is known as the Ice Building Option
Status Relay.The normally open contact will be closed
The UC800 provides inputs that accept either 4-20 mA or
when ice building is in progress and open when ice
2-10 VDC signals to set the external chilled water setpoint
building has been normally terminated either through Ice
(ECWS).This is not a reset function.The input defines the
Termination setpoint being reached or removal of the Ice
setpoint.This input is primarily used with generic BAS
Building command.This output is for use with the ice
(building automation systems).The chilled water setpoint
storage system equipment or controls (provided by
is set via theTracer AdaptiView™TD7 or through digital
others) to signal the system changes required as the chiller
communication withTracer (Comm3).
mode changes from “ice building” to “ice complete”.
When contact 5K3 is provided, the chiller will run normally The chilled water setpoint may be changed from a remote
when the contact is open. location by sending either a 2-10 VDC or 4-20 mA signal to
the 1K24, terminals 5 and 6 LLID.The 2-10 VDC and 4-20
UC800 will accept either an isolated contact closure
(External Ice Building command) or a Remote
28 RTAF-SVX001A-EN
mA each correspond to a 10 to 65°F (-12 to 18°C) external field installation, or can be used to enable or disable the
chilled water setpoint. feature (if installed).
The following relationships exist: EDLS and ECWS Analog Input Signal Wiring
Voltage Signal External Water Setpoint Details:
< 1 VDC Invalid Both the ECWS and EDLS can be connected and setup as
1 VDC to 2 VDC min either a 2-10 VDC (factory default), 4-20 mA, or resistance
2 VDC to 10 VDC min + (max-min)* (Signal-2)/8 input (also a form of 4-2OmA) as indicated below.
10 VDC to 11 VDC max
Depending on the type to be used, theTracerTU Service
Tool must be used to configure the LLID and the MP for the
> 11 VDC Invalid
proper input type that is being used.This is accomplished
Current Signal External Water Setpoint by a setting change on the CustomTab of the
< 2 mA Invalid Configuration View withinTracerTU.
2 mA to 4 mA min Important: For proper unit operation, BOTH the EDLS
4 ma to 20 mA min + (max-min)* (Signal-4)/16 and ECWS settings MUST be the same (2-10
20 mA to 22 mA max VDC or 4-20mA), even if only one input is to
>22 mA Invalid be used.
The J2-3 and J2-6 terminal is chassis grounded and
If the ECWS input develops an open or short, the LLID will
terminal J2- 1 and J2-4 can be used to source 12 VDC.The
report either a very high or very low value back to the main
ECLS uses terminals J2-2 and J2-3. ECWS uses terminals
processor.This will generate an informational diagnostic
J2-5 and J2-6. Both inputs are only compatible with
and the unit will default to using the Front Panel (TD7)
high-side current sources.
Chilled Water Setpoint.
TracerTU ServiceTool is used to set the input signal type Figure 13. Wiring examples for EDLS and ECWS
from the factory default of 2-10 VDC to that of 4-20 mA.
TracerTU is also used to install or remove the External J2-1 & 4 Dual
ChilledWater Setpoint option as well as a means to enable 2-10 VDC, 4-20mA
J2-2 & 5 Analog
J2-3 & 6 I/O LLID
and disable ECWS.
External Demand Limit Setpoint (EDLS)

Option Resister J2-1 & 4 Dual
J2-2 & 5 Analog
Similar to the above, the UC800 also provides for an I J2-3 & 6 I/O LLID
optional External Demand Limit Setpoint that will accept
either a 2-10 VDC (default) or a 4-20 mA signal.The I = 20/(R + 200)
Demand Limit Setting can also be set via theTracer

AdaptiView™TD7 or through digital communication with
J2-1 & 4 Dual
Tracer (Comm 3).The arbitration of the various sources of J2-2 & 5 Analog
demand limit is described in the flow charts at the end of J2-3 & 6 I/O LLID
this section.The External Demand Limit Setpoint may be
changed from a remote location by hooking up the analog
input signal to the 1K24 LLID terminals 2 and 3. Refer to the
following paragraph on Analog Input Signal Wiring Chilled Water Reset (CWR)
Details.The following equations apply for EDLS:
UC800 resets the chilled water temperature set point
Voltage Signal Current Signal
based on either return water temperature, or outdoor air
As generated from
VDC+0.133*(%)-6.0 mA=0.266*(%)-12.0 temperature. Return Reset is standard, Outdoor Reset is
external source
optional.
As processed by
%=7.5*(VDC)+45.0 %=3.75*(mA)+45.0
UCM The following shall be selectable:
• One of three ResetTypes: None, Return Water
If the EDLS input develops an open or short, the LLID will
Temperature Reset, Outdoor AirTemperature Reset, or
report either a very high or very low value back to the man
Constant Return WaterTemperature Reset.
processor.This will generate an informational diagnostic
and the unit will default to using the Front Panel (Tracer • Reset Ratio Set Points.
AdaptiView™TD7) Current Limit Setpoint. For outdoor air temperature reset there shall be both
TheTracer™TU ServiceTool must be used to set the input positive and negative reset ratio's.
signal type from the factory default of 2-10 VDC to that of • Start Reset Set Points.
4-20 mA current.TracerTU must also be used to install or
• Maximum Reset Set Points.
remove the External Demand Limit Setpoint Option for
RTAF-SVX001A-EN 29
The equations for each type of reset are as follows: When any type of CWR is enabled, the MP will step the
Return Active CWS toward the desired CWS' (based on the above
equations and setup parameters) at a rate of 1 degree F
CWS' = CWS + RATIO (START RESET - (TWE -TWL)) every 5 minutes until the Active CWS equals the desired
and CWS' > or = CWS CWS'.This applies when the chiller is running.
and CWS' - CWS < or = Maximum Reset When the chiller is not running, CWS is reset immediately
(within one minute) for Return Reset and at a rate of 1
Outdoor
degree F every 5 minutes for Outdoor Reset.The chiller
CWS' = CWS + RATIO * (START RESET -TOD) will start at the Differential to Start value above a fully reset
and CWS' > or = CWS CWS or CWS' for both Return and Outdoor Reset.
and CWS' - CWS < or = Maximum Reset
where
AFD Drive
CWS' is the new chilled water set point or the “reset CWS” TraneTR200 drive is an electronic motor controller that
converts AC mains input into a variable AC waveform
CWS is the active chilled water set point before any reset
output.The frequency and voltage of the output are
has occurred, e.g. normally Front Panel,Tracer, or ECWS
regulated to control the motor speed or torque.
RESET RATIO is a user adjustable gain
TR200 drive includes the following features:
START RESET is a user adjustable reference
• Soft start to minimize inrush current
TOD is the outdoor temperature
• Improved harmonic mitigation with DC link reactor
TWE is entering evap. water temperature
• Integrated power fuse
TWL is leaving evap. water temperature
• Graphical LCD keypad
MAXIMUM RESET is a user adjustable limit providing the
• Unit Mounted with factory pre-wiring
maximum amount of reset. For all types of reset, CWS' -
CWS < or = Maximum Reset. • ‘Trane Drive Utility’ for configuration and tracking
See Service Manual BAS-SVM01*-EN for more
information.
Range Increment
Reset Reset Start Max IP SI Factory
Type Ratio Reset Reset Units Units Default
10 to
Return 4 to 30 F 0 to 20 F 1% 1% 50%
120%
(2.2 to (0.0 to
16.7 C) 11.1 C)
80 to - 50 to 130
Outdoor 0 to 20 F 1% 1% 10%
80% F
(10 to (0.0 to
54.4 C) 11.1 C)
In addition to Return and Outdoor Reset, the MP provides

a menu item for the operator to select a Constant Return
Reset. Constant Return Reset will reset the leaving water
temperature set point so as to provide a constant entering
water temperature.The Constant Return Reset equation is
the same as the Return Reset equation except on selection
of Constant Return Reset, the MP will automatically set
Ratio, Start Reset, and Maximum Reset to the following.
RATIO = 100%
START RESET = Design DeltaTemp.
MAXIMUM RESET = Design DeltaTemp.
The equation for Constant Return is then as follows:
CWS' = CWS + 100% (Design DeltaTemp. - (TWE -TWL))
and CWS' > or = CWS
and CWS' - CWS < or = Maximum Reset
30 RTAF-SVX001A-EN
AFD Drive Installation Table 14. Non-compressor specific parameter settings
The AFD drive is manufactured with a jumper installed ID Description Setting

between terminal 12 (+24Vdc source) and terminal 37 1-24 Motor Current See Table 15
(Safe Stop digital input).This jumper must be removed 1-25 Motor Nominal Speed See Table 15
prior to unit operation. See Figure 14 for view of jumper as 1-71 Start Delay 0s
it would be installed on drive from manufacturer.
1-73 Flying Start [0] Disabled
NOTICE: 1-78 Compressor Start Max Speed [Hz] 30Hz

1-79 Compressor Start Max Time to Trip 10s
Equipment Damage!
1-82 Min Speed for Function at Stop [Hz] 10Hz
Verify/remove jumper between AFD terminals 12 and
1-87 Trip Speed Low [Hz] 25Hz
37 before unit operation. Failure to remove jumper
could cause equipment damage. 3-02 Minimum Reference 30Hz
3-41 Ramp 1 Ramp Up Time 5s
3-42 Ramp 1 Ramp Down Time 5s
Figure 14. AFD jumper 3-82 Starting Ramp Up Time 3s
4-10 Motor Speed Direction [0] Clockwise
4-12 Motor Speed Low Limit [Hz] 30Hz
4-18 Current LImit 116.7%
4-19 Max Output Frequency 61Hz
5-12 Terminal 27 Digital Input [2] Coast Inverse
5-13 Terminal 29 Digital Input [0] No Operation
5-40.0 Function Relay 1 [5] Running
5-40.1 Function Relay 2 [3] Drive Rdy/Rem Ctrl
5-41.0 On Delay, Relay 1 1s
5-41.1 On Delay, Relay 2 1s
5-42.0 Off Delay, Relay 1 1s
5-42.1 Off Delay, Relay 2 1s
Jumper between
terminals 12 and 37 6-10 Terminal 53 Low Voltage 2V
must be removed 6-14 Terminal 53 Low Ref./Feedb. Value 30Hz
prior to unit
operation. 6-50 Terminal 42 Output [133] Motor Cur. 4-20mA
14-03 Overmodulation [0] Off
14-10 Mains Failure [4] Kinetic Back-up
14-11 Mains Voltage at Mains Fault See Table 15
AFD Drive Programming 14-20 Reset Mode [1] Automatic Reset x 1
Field replacement drives must be programmed via the 14-30 Current Lim Ctrl. Proportional Gain 25%
keypad interface. Program parameters sequentially by ID 14-31 Current Lim Ctrl. Integration Time 1s
values as defined in Table 14 and Table 15, p. 32. 14-50 RFI Filter [0] Off
14-51 DC Link Compensation [1] On
Table 14. Non-compressor specific parameter settings 22-75 Short Cycle Protection [1] Enabled
ID Description Setting 22-76 Interval Between Starts 60s
0-03 Region Settings [1] North American

0-20 Display Line 1.1 Small [1612] Motor Voltage
0-24 Display Line 3 Large [1617] Speed (rpm)
0-40 [Hand on] Key on LCP [0] Disabled
0-41 [Off] Key on LCP [0] Disabled
0-60 Main Menu Password 999
0-61 Access to Main Menu w/o Password [1] LCP: Read-only
1-03 Torque Characteristics [0] Compressor Torque
1-21 Motor Power [HP] See Table 15
1-22 Motor Voltage See Table 15
1-23 Motor Frequency 60Hz
RTAF-SVX001A-EN 31
Table 15. Compressor-specific parameter settings 115 to 215 tons — 60Hz(a)
Parameters L1 L2 M3 M4 N3
ID Description 460V 380V 575V 460V 380V 575V 460V 380V 575V 460V 380V 575V 460V 380V 575V
1-21 Motor Power (hp) 86 86 86 102 102 102 122 122 122 144 144 144 177 177 177
1-22 Motor Voltage (V) 460V 380V 575V 460V 380V 575V 460V 380V 575V 460V 380V 575V 460V 380V 575V
1-24 Motor Current (A) 100A 121A 80A 120A 145A 96A 141A 170A 111A 166A 200A 132A 201A 243A 161A
Motor Nominal
1-25 3461 3460 3461 3459 3466 3461 3502 3505 3503 3494 3494 3494 3494 3495 3493
Speed (rpm)
14- Voltage at Main
391V 323V 489V 391V 323V 489V 391V 323V 489V 391V 323V 489V 391V 323V 489V
11 Fault (V)
(a) 400V/50 Hz units use 380V/60 Hz compressor settings.
Communication Interfaces
LonTalk Interface (LCI-C)
UC800 provides an optional LonTalk® Communication
Interface (LCI-C) between the chiller and a Building
Automation System (BAS). An LCI-C LLID shall be used to
provide "gateway" functionality between a LonTalk
compatible device and the Chiller.The inputs/outputs
include both mandatory and optional network variables as
established by the LONMARK® Functional Chiller Profile
8040.
Note: For more information see ACC-SVN100*-EN.
BACnet Interface (BCI-C)

Optional BACnet® Communication Interface for Chillers
(BCI-C) is comprised of aTracer UC800 controller with
interface software. It is a non-programmable
communications module that allows units to
communicate on a BACnet communications network.
Note: For more information, see BAS-SVP01*-EN.
Modbus Remote Terminal Unit Interface

Modicon Communication Bus (Modbus™) enables the
chiller controller to communicate as a slave device on a
Modbus network. Chiller setpoints, operating modes,
alarms and status can be monitored and controlled by a
Modbus master device.
Note: For more information, see BAS-SVP01*-EN.
32 RTAF-SVX001A-EN
Operating Principles
Refrigerant Circuit Refrigerant and Oil
Each unit has two refrigerant circuits, with one rotary Use only R-134a or R-513A as shown on unit nameplate,
screw compressor per circuit. Each refrigerant circuit and selected in unit model number digit 16.
includes compressor suction and discharge service Digit 16 =1 or 3: R-513A
valves, liquid line shut off valve, removable core filter,
liquid line sight glass with moisture indicator, charging Digits 16 = 2 or 4: R-134a
port, high pressure and low pressure safety valve and The Sintesis™ chiller uses environmentally friendly
electronic expansion valve. Fully modulating compressor refrigerants.Trane believes that responsible refrigerant
and electronic expansion valve provide variable capacity practices are important to the environment, our
modulation over the entire operating range. customers, and the air conditioning industry. All
technicians who handle refrigerants must be certified.The
Refrigerant Cycle Federal Clean Air Act (Section 608) sets forth the
requirements for handling, reclaiming, recovering and
Typical refrigerant cycle is represented on the pressure recycling of certain refrigerants and the equipment that is
enthalpy diagram shown in the figure below. Key state used in these service procedures. In addition, some states
points are indicated on the figure.The cycle for the full or municipalities may have additional requirements that
load design point is represented in the plot. must also be adhered to for responsible management of
refrigerants. Know the applicable laws and follow them.
Figure 15. Pressure-enthalphy diagram R-134a and R-513A are medium pressure refrigerants.
R-134a They may not be used in any condition that would cause
600
the chiller to operate in a vacuum without a purge system.
500 Sintesis is not equipped with a purge system.Therefore,
the chiller may not be operated in a condition that would
2 result in a saturated condition in the chiller of -15°F (-26°C)
3
200 3b 2b or lower.
P (psia)
Use only the specific POE oil as designated on the unit

nameplate.
100
4 1
Compressor and Lube Oil System
50
1b
The rotary screw compressor is semi-hermetic, direct
drive, with capacity control via an adaptive frequency
30
0 20 40 60 80 100 120 140 drive, rolling element bearings, differential refrigerant
h (btu/lb) pressure oil pump and oil heater.The motor is a suction
gas cooled, hermetically sealed, two-pole squirrel cage
The chiller uses a shell and tube evaporator design with induction motor.
refrigerant evaporating on the shell side and water flowing
Oil separator is provided separate from the compressor.
inside tubes having enhanced surfaces (states 4 to 1).The
Oil filtration is provided internal to the compressor. Check
suction lines are designed to minimize pressure drop
valves in the compressor discharge and lube oil system
(states 1 to 1b) the compressor is a twin-rotor helical rotary
are also provided.
compressor designed similarly to the compressors
offered in otherTrane screw compressor based chiller
(states 1b to 2).The discharge lines include a highly Condenser and Fans
efficient oil separation system that removes 99.8% of the
oil from the refrigerant stream going to the heat The air-cooled microchannel condenser coils use all
exchangers (states 2 to 2b). De-superheating, condensing aluminum brazed fin construction.The condenser coil has
and sub-cooling are accomplished in a microchannel an integral subcooling circuit.The maximum allowable
cooled heat exchanger where refrigerant is condensed working pressure of the condenser is 350 psig.
inside the microchannel (states 2b to 3b). Refrigerant flow Condensers are factory proof and leak tested at 525 psig.
through the system is balanced by an electronic expansion Coils can be cleaned with high pressure water.
valve (states 3b to 4). Direct-drive vertical-discharge airfoil condenser fans are
dynamically balanced.The condenser fan motors are
permanent magnet motors with integrated drive to
provide variable speed fan control for all fans.
RTAF-SVX001A-EN 33
Operating Principles
All condenser fan motors are designed with permanently

lubricated ball bearings and internal temperature and
current overload protection.
Evaporator
The evaporator is a tube-in-shell heat exchanger design
constructed from carbon steel shells and tubesheets with
internally and externally finned seamless copper tubes
mechanically expanded into the tube sheets.The
evaporator is designed, tested and stamped in accordance
with the ASME Boiler and Pressure Vessel Code for a
refrigerant side working pressure of 200 psig.The
evaporator is designed for a water side working pressure
of 150 psig.
Standard water connections are grooved forVictaulic style
pipe couplings, with flange style connections optionally
available. Waterboxes are only available in a 2 pass
configuration and include a vent, drain and fittings for
temperature control sensors. A factory installed flow
switch is installed on the supply waterbox in the
evaporator inlet connection.
Evaporators are insulated with 3/4 inch closed cell
insulation.
Evaporator shell heaters and waterbox heaters with
thermostat are provided to help protect the evaporator
from freezing at ambient temperatures down to
-4°F (-20°C).
Note: A separate field supplied 120V power source is
required to power the evaporator freeze protection.
See “Installer-Supplied Components,” p. 25 and
“Freeze Avoidance,” p. 23for more information.
34 RTAF-SVX001A-EN
Controls
Overview UC800 Specifications
Sintesis™ RTAF chillers utilize the following control/ This section covers information pertaining to the UC800
interface components: controller hardware.
• Tracer™ UC800 Controller
Wiring and Port Descriptions
• Tracer AdaptiView™TD7 Operator Interface
Figure 16 illustrates the UC800 controller ports, LEDs,
rotary switches, and wiring terminals.The numbered list
following Figure 16 corresponds to the numbered callouts
in the illustration.
Figure 16. Wiring locations and connection ports
+ + + +24
VDC
LINK MBUS
2 3 4 5
6 6
7
8
9
1
10
10 11
11
Front View Bottom View
1. Rotary Switches for setting BACnet® MAC address or MODBUS ID.

2. LINK for BACnet MS/TP, or MODBUS Slave (two terminals, ±). Field wired if used.
3. LINK for BACnet MS/TP, or MODBUS Slave (two terminals, ±). Field wired if used.
4. Machine bus for existing machine LLIDs (IPC3Tracer bus 19.200 baud). IPC3 Bus: used for Comm4 usingTCI or LonTalk® using LCI-C.
5. Power (210 mA at 24 Vdc) and ground terminations (same bus as item 4). Factory wired.
6. Not used.
7. Marquee LED power and UC800 Status indicator (Table 16, p. 36).
8. Status LEDs for the BAS link, MBus link, and IMC link.
9. USB device type B connection for the service tool (TracerTU).
10. The Ethernet connection can only be used with theTracer AdaptiView display.
11. USB Host (not used).
RTAF-SVX001A-EN 35
Controls
Communication Interfaces
Table 16. LED behavior
There are four connections on the UC800 that support the
communication interfaces listed. See Figure 16, p. 35 for LED UC800 Status
the locations of each of these ports. Powered. If the Marquee LED is green solid, the
• BACnet® MS/TP UC800 is powered and no problems exist.
• MODBUS™ Slave Low power or malfunction. If the Marquee LED is
Marquee LED red solid, the UC800 is powered, but there are
• LonTalk™ using LCI-C (from the IPC3 bus) problems present.
• Comm 4 usingTCI (from the IPC3 bus) Alarm. The Marquee LED blinks Red when an alarm
exists.
Rotary Switches The TX LED blinks green at the data transfer rate
when the UC800 transfers data to other devices on
There are three rotary switches on the front of the UC800 the link.
LINK, MBUS,
controller. Use these switches to define a three-digit IMC The Rx LED blinks yellow at the data transfer rate
address when the UC800 is installed in a BACnet or when the UC800 receives data from other devices on
MODBUS system (e.g., 107, 127, etc.). the link.
The LINK LED is solid green if the Ethernet link is
Note: Valid addresses are 001 to 127 for BACnet and 001 connected and communicating.
to 247 for MODBUS. Ethernet Link
The ACT LED blinks yellow at the data transfer rate
when data flow is active on the link.
LED Description and Operation The Service LED is solid green when pressed. For
Service
qualified service technicians only. Do not use.
There are 10 LEDs on the front of the UC800. Figure 17
shows the locations of each LED and Table 16 describes
Important: Maintain at least 6 inches between low-
their behavior in specific instances.
voltage (<30V) and high voltage circuits.
Figure 17. LED locations Failure to do so could result i electrical noise
that could distort the signals carried by the
Marquee low-voltage wiring, including IPC.
LINK MBUS IMC
TX Tracer AdaptiView TD7 Display

RX
Operator Interface
LINK
SERVICE
Information is tailored to operators, service technicians,
ACT and owners. When operating a chiller, there is specific
information you need on a day-to-day basis—setpoints,
limits, diagnostic information, and reports. Day-to-day
operational information is presented at the display.
Logically organized groups of information— chiller modes
of operation, active diagnostics, settings and reports put
information conveniently at your fingertips.
Figure 18. TD7 screens
Operator Display Boot Screen Display Loading Data Home Screen, Auto Mode
Main Display Area/Home Screen location in Table 19).
All screens appear within the main display area (shown as

36 RTAF-SVX001A-EN
Controls
Home screen: Chiller status information Note: You can also access the Chiller Operating Modes
screen from the chiller status button in the upper
The home screen (Table 19) provides the most frequently
left corner of the screen.
needed chiller status information on “touch targets” (the
entire white rectangular areas) for each chiller component.
Figure 20. Chiller operating modes
Touching any touch target displays a screen containing
more chiller status information related to each
component.
Figure 19. Main screen
Table 17. Main screen items
Description Resolution Units

Active Chilled Water Setpoint X.X °F /°C
Active Current Limit Setpoint X.X %RLA
Average Motor Current %RLA X.X %RLA
Evap Entering/Leaving Water Temp X.X °F /°C
Cond Entering/Leaving Water Temp X.X °F /°C
Frequency Command X.X Hz
Evaporator Water Flow Status X.X
Condenser Water Flow Status
Viewing Chiller Operating Modes

On the Reports screen, touch Chiller Operating Modes to
view the current operating status of the chiller in terms of
the top-level operating mode and submodes.
Table 18. Operating modes
Chiller Modes Description

MP Resetting The main processor is going through reset
No chiller sub-modes.
The chiller is not running either circuit and cannot run without intervention. Further
Stopped
information is provided by the sub-mode:
Local Stop Chiller is stopped by TD7 Stop button command– cannot be remotely overridden.
Chiller is stopped by the TD7 Panic Stop (by pressing Stop then Immediate Stop in succession) – previous
Immediate Stop
shutdown was manually commanded to shutdown immediately.
No Circuits Available The entire chiller is stopped by circuit diagnostics or lockouts that may automatically clear.
Diagnostic Shutdown – Manual Reset The chiller has been shut down on a latching diagnostic that requires manual intervention to reset.
Chiller is running to provide a chilled water temperature per the active chilled water setpoint (may be as
Chilled Water Control
arbitrated from various sources). (For cooling only units, this mode may be suppressed.)
Starting is Inhibited by Low Ambient
The chiller is inhibited based on the outdoor air temperature.
Temperature
RTAF-SVX001A-EN 37
Controls
Table 18. Operating modes (continued)

Starting is Inhibited by External
The chiller is inhibited from starting or running by the “external stop” hardwired input.
Source
Power Up Delay Inhibit: min:sec On power up, the chiller will wait for the Power Up Delay Timer to expire.
The chiller is currently being inhibited from starting (and running), but may be allowed to start
Run Inhibit if the inhibiting or diagnostic condition is cleared. Further information is provided by the sub-
mode:
No Circuits Available The entire chiller is stopped by circuit diagnostics or lockouts that may automatically clear.
The chiller is inhibited from running as the Ice Building process has been normally terminated on the
Ice Building Is Complete evaporator entering temperature. The chiller will not start unless the ice building command (hardwired
input or Building Automation System command) is removed or cycled.
The chiller is inhibited from running for a brief period of time if it is commanded from active ice building
mode into normal cooling mode via the ice building hardwired input or Tracer. This allows time for the
Ice to Normal Transition Inhibit external system load to “switchover” from an ice bank to the chilled water loop, and provides for a
controlled pull down of the loop’s warmer temperature. This mode is not seen if the ice making is
automatically terminated on return brine temperature per the mode below.
Start Inhibited by BAS The chiller is stopped by Tracer® or Building Automation System.
Starting is Inhibited by External
The chiller is inhibited from starting or running) by the “external stop” hardwired input.
Source
Diagnostic Shutdown – Auto Reset The entire chiller is stopped by a diagnostic that may automatically clear.
Starting is Inhibited by Low Ambient
The chiller is inhibited based on the outdoor air temperature.
Temperature
Power Up Delay
On power up, the chiller will wait for the Power Up Delay Timer to expire.
Inhibit: min:sec
The chiller is not currently running but can be expected to start at any moment given that the
Auto proper conditions and interlocks are satisfied. Further information is provided by the sub-
mode:
The chiller will wait up to 20 minutes in this mode for evaporator water flow to be established per the flow
Waiting For Evap Water Flow
switch hardwired input.
The chiller will wait indefinitely in this mode, for an evaporator leaving water temperature higher than the
Waiting for A Need to Cool
Chilled Water Setpoint plus some control dead-band.
The chiller is not currently running and there is a call for cooling but lead circuit start is delayed
Waiting to Start
by certain interlocks or proofs.
No chiller sub-modes.
The chiller, circuit, and compressor are currently running. Further information is provided by
Running
the sub-mode:
Maximum Capacity The chiller is operating at its maximum capacity.
Capacity Control Softloading The control is limiting the chiller loading due to capacity based softloading settings.
The chiller is running, and loading of individual compressors may be limited by a gradual filter of the chiller’s
softloading demand limit setpoint. The starting demand limit and the settling time of this filter is user
Demand Limit Softloading
adjustable as part of the demand limit softload feature. The mode will be displayed as long as the Demand
Limit Softloading is ramping or “settling”.
At least one circuit on the chiller is currently running, but the operation of any of the circuits on the chiller
is being actively limited by a chiller level limit. Other sub modes that apply to the Chiller Running top level
Running – Limited
modes may also be displayed here. Refer to the list of circuit limit modes for circuit limits that will cause
display of this Chiller Level Running Limit mode.
The chiller is running and the compressor capacity is unloaded or restricted to load slowly or not at all to
Demand Limit
keep the chiller from exceeding the demand limit set by the customer.
The chiller is running, and loading of individual compressors may be limited by a gradual filter of the chiller’s
softloading demand limit setpoint. The starting demand limit and the settling time of this filter is user
Demand Limit Softloading
adjustable as part of the demand limit softload feature. The mode will be displayed as long as the Demand
Limit Softloading is ramping or “settling”.
38 RTAF-SVX001A-EN
Controls
Table 18. Operating modes (continued)

The chiller is still running but shutdown is imminent. The chiller is going through a compressor
Shutting Down run-unload or extended operational pumpdown of the lag circuit/compressor (or all circuits
simultaneously).
Evaporator Water Pump Off Delay The evaporator water pump is continuing to run past the shutdown of the compressors, executing the pump
min:sec off delay timer.
Local Stop, Maximum Capacity Chiller is in the process of being stopped by TD7 Stop button command
Misc These sub-modes may be displayed in most of the top level circuit modes.
Manual Evaporator Pump Override The evaporator water pump relay is on due to a manual command.
Diagnostic Evaporator Water Pump
The evaporator water pump relay is on due to a diagnostic.
Override
Manual Compressor Control Signal Chiller capacity control is being controlled by Operator Display or Service Tool.
The Noise Reduction Request feature has been activated. If the unit is running, fans will be running at lower
Noise Reduction Request
speed.
Chilled Water Control These modes are mutually exclusive and they indicate that the chiller is controlling to the active chilled
water setpoint, or the active ice termination setpoint respectively. Chiller is running to provide a chilled
Ice Building water temperature per the active chilled water setpoint (may be as arbitrated from various sources). (For
cooling only units, this mode may be suppressed.)
Evaporator Water Pump X Locked Out Evaporator Water Pump X has been locked out by manual override from TD7 or TU.
The chiller has not detected communication with the BAS. This mode is only supported by LonTalk systems.
Depending on configurations and Setpoint source setting, lack of communication may cause the chiller to
Waiting for BAS Communications
shut down and or become inhibited from starting, but if so, the “Starting is Inhibited by BAS” mode will
also occur.
Alarms The Alarms screen is accessible by depressing the Alarms

enunciator. A verbal description will be provided.
You can use the display to view alarms and to reset them.
Alarms are communicated to the display immediately A scrollable list of the last active Alarms is presented.
upon detection. Performing a “Reset Alarms” will reset all active Alarms
regardless of type, machine or circuit.The scrollable list
Viewing the Alarms Screen will be sorted by time of occurrence.
Touch the Alarms button in the main menu area (Figure 19, If a informational warning is present, the “Alarms” key will
p. 37) to view the Alarms screen. A table of active alarms be present but not flashing. If a Alarm shutdown (normal
appears that is organized chronologically with the most or immediate) has occurred, the “Alarm” key will display
recent at the top of the list, as shown in Figure 21.This that is flashing. If no Alarms exist, the “Alarm” key will not
example shows the default view, which appears each time be present.
you return to the screen.
Reports
Note: A page number appears in the lower right corner of
the screen. If a screen contains more than one You can use theTracer display to view a variety of reports
page, up/down arrows also appear for viewing the and to create and edit a custom report. All reports contain
other pages live data that refreshes every 2–5 seconds.
Viewing the Reports Screen

Figure 21. Alarm screen
Touch the Reports button in the main menu area (Figure 4)
to view the Reports screen.The Reports screen contains
the following buttons:
• Custom Report1
• Custom Report2
• Custom Report3
• Evaporator
• Condenser
• Compressor
• Motor
• About
• Operating Modes
RTAF-SVX001A-EN 39
Controls
• Log Sheet
• ASHRAE Chiller Log Figure 23. Edit custom report screen
Each button links to the report named on the button.
Figure 22. Report screen
Figure 24. Report evaporator screen
The Reports tab allows a user to select from a list of reports

headings. Each report will generate a list of status items as
defined in the tables that follow.
Editing a Custom Report

You can edit the custom report by adding, removing, or re-
order data as follows:
1. On the Custom Report screen, touch Edit.The Edit
Custom Report screen appears.
2. Add, remove, or re-order as follows:
a. To add an item to the custom report, touch it. It
Table 19. Report evaporator screen items
responds by changing to blue.You can use the
arrows to scroll through the rest of the items that Description Resolution Units
can be added to the custom report.Then touch Add Active Chilled Water Setpoint X.X °F / °C
to move the selected item to the box on the right
Evaporator Entering Water Temperature X.X °F / °C
side of the screen.To add all of the remaining items
in the left box to the custom report, touch Add All. Evaporator Leaving Water Temperature X.X °F / °C
Evaporator Water Flow Status Flow, No Flow Text
b. To remove an item from the custom report, touch it.
It responds by changing to blue.You can use the Evaporator Water Pump Override Auto, On Text
arrows to scroll through the rest of the items that Evaporator Approach Temperature X.X °F / °C
can be removed from the custom report.Then touch EXV Position Percent X.X %
Remove to move the selected item to the box on the Evaporator Refrigerant Pressure XXX.X PSIA/kPa
left side of the screen.
Evaporator Saturated Rfgt Temp X.X °F / °C
c. To re-order items in the custom report, touch it. It Evaporator Refrigerant Liquid Level X.XX in/mm
responds by changing to blue. Use the arrows to
change the order of a highlighted item.
3. To save and view your edited custom report, touch
Save.
40 RTAF-SVX001A-EN
Controls
Table 21. Report compressor screen items

Figure 25. Report condenser screen
Compressor Running Time XX:XX Hr:Min
Oil Loss Level Sensor Wet, Dry Text
Discharge Temperature X.X °F / °C
Discharge Temperature X.X °F / °C
Compressor Oil Pressure XXX.X PSIA/kPaA
Evaporator Refrigerant Pressure XXX.X PSIA/kPaA
Condenser Refrigerant Pressure XXX.X PSIA/kPaA
Differential Refrigerant Pressure XXX.X PSIA/kPaA
Frequency Command XX.X Hz
Figure 27. Report motor screen
Table 20. Report condenser screen items

Condenser Entering Water
X.X F/C
Temperature
Condenser Leaving Water
X.X F/C
Temperature
Condenser Water Flow Status Flow, No Flow Text
Condenser Water Pump Override Auto, On Text
Condenser Approach Temperature X.X F/C
EXV Position Percent X.X %
Condenser Refrigerant Pressure XXX.X PSIA/kPa
Condenser Saturated Rfgt Temp X.X F/C
Differential Refrigerant Pressure XXX.X PSIA/kPa
Outdoor Air Temperature X.X F/C
Figure 26. Report compressor screen
Table 21. Report compressor screen items

Compressor Running Status On, Off Text
Average Motor Current %RLA XX.X% %RLA
Compressor Starts XX Text
RTAF-SVX001A-EN 41
Controls
Viewing and Changing Equipment Settings

Table 22. Report motor screen items
Each button in the Equipment Settings column on the
Description Resolution Units Settings screen takes you to a menu screen that contains
Active Current Limit Setpoint X.X %RLA
a group of buttons. Each button displays the name of a
setting and its current value (Figure 29).Touch any button
Average Motor Current %RLA X.X %RLA
to view a screen where you can change the setting for the
Starter Motor Current L1 %RLA X.X %RLA feature shown on the button.
Starter Motor Current L2 %RLA X.X %RLA
Note: A page number appears in the lower right corner of
Starter Motor Current L3 %RLA X.X %RLA the screen. If a screen contains more than one
Starter Motor Current L1 X.X A page, up/down arrows also appear for viewing the
Starter Motor Current L1 X.X A other pages, as in Figure 29.
Starter Motor Current L1 X.X A
Starter Input Voltage AB XXX.X V
Figure 29. Equipment setting screen
(Chiller setting shown)
Starter Input Voltage BC XXX.X V
Starter Input Voltage CA XXX.X V
Average Motor Current X.X A
Average Phase Voltage XXX.X V
Frequency Command XX.X Hz
Equipment Settings
You can use the TD7 display to monitor and change a
variety of equipment settings.
Viewing the Settings Screen
Touch the Settings button in the main menu area (see
Figure 19, p. 37) to view the Settings screen. Equipment
Settings identifies a column of buttons located on the
To change an equipment setting, follow this procedure:
screen (see the outlined column in Figure 28).The buttons
are: 1. Touch one of the button in the Equipment Settings
column on the Settings screen, such as Chiller Settings.
• Chiller Settings
The corresponding screen appears (in this case, the
• Feature Settings Chiller Settings screen).
• Chiller Water Reset 2. Touch the button that shows the equipment setting you
• Manual Control Settings want to change. A screen that allows you to change the
equipment setting appears.There are two types of
• Service Settings
these screens:
Each of these buttons provide access to a screen that
a. For screens with button selections (Figure 30),
contains additional buttons related to each topic.This
touch the button that represents the setting you
section provides detailed information about these
want.The button becomes shaded, and a Save
screens.
button appears at the bottom of the screen.
Figure 28. Setting screen b. For screens with numerical keypads (Figure 31),
touch the appropriate numbers to change the
current value.The new value appears above the
keypad.
3. Touch Save to complete the change.The current value
is updated in the upper left side of the screen,
demonstrating that the change has been
communicated to theTracer UC800 controller.The
screen you were previously viewing appears.
42 RTAF-SVX001A-EN
Controls
Table 23. Settings screen items

Figure 30. Chilled water setpoint screen
Chiller Settings
Active Chilled Water Setpoint ± XXX.X °F / °C
Active Current Limit Setpoint XXX% %RLA
Active Panel Base Load Cmd On/Auto Text
Active Base Loading Setpoint XXX %
Active Base Loading Command On/Auto Text
Differential to Start XXX.X °F / °C
Differential to Stop XXX.X °F / °C
Setpoint Source
BAS/Ext/FP Text
(BAS/Ext/FP, Ext/Front Panel, Front Panel)
Evaporator Water Pump Off Delay XX Min
Condenser Pump Prestart Time XX Min
High Evap Water Temp Cutout XXX.X °F / °C
Evaporator Leaving Water Temp Cutout XX.X °F / °C
Figure 31. Changed chilled water setpoint screen Low Refrigerant Temperature Cutout XX.X °F / °C
Current Limit Softload Start Point XXX.X %
Current Limit Control Softload Time XXXX Sec
Capacity Control Softload Time XXXX Sec
Local Atmospheric Pressure XXX.X psi/kPa
Power Up Start Delay XXX Min
Feature Settings
External Chilled/Hot Water Setpoint
Text
(Enable/Disable)
External Current Limit Setpoint
Text
(Enable/Disable)
LCI-C Diagnostic Encoding (Enable/Disable) Text
Chilled Water Reset
Disable Text
(Constant, Outdoor, Return, Disable),
Return Reset Ratio XXX %
Keypad features:
Return Start Reset XXX.X °F / °C
• When you enter a new number, the value in the New
Return Maximum Reset XXX.X °F / °C
value field is deleted and replaced with the new entry.
Outdoor Reset Ratio XXX %
• The backspace (arrow) key deletes the characters you
Outdoor Start Reset XXX.X °F / °C
previously entered.
Outdoor Maximum Reset XXX.X °F / °C
• If the keypad is used to enter a setpoint that is out of
Mode Overrides
range, an error dialog will appear when you touch the
Save button. Evap Water Pump (Auto, On) Auto Text
Cond Water Pump (Auto, On) Auto Text
• Keypads that allow negative numbers have positive
and negative number (+/-) keys. Display Reference
Date Format
mmm dd, yyyy Text
(mmm dd, yyyy, dd-mmm-yyyy)
Data Separator Text
Time Format (12-hour, 24-hour) 12-hour Text
Unit System (SI, English) English Text
Pressure Units (Absolute, Gauge) Absolute Text
Number Format Text
RTAF-SVX001A-EN 43
Controls
Display Settings
Figure 33. Date format page
You can use theTracer AdaptiView display to change the
format of the information that appears on the display, and
to clean the touch screen.
Viewing the Settings Screen

Touch the Settings button in the main menu area
(Figure 28, p. 42) to view the Settings screen. Display
Settings identifies a column of buttons located on the
screen (see Figure 32).The buttons are:
• Display Preferences
• Language
• Date andTime
• Clean Display
Each button provide access to a screen that is related to the To change the format:
button name. 1. Touch the button that shows that format you prefer.
Viewing and Changing Display Preferences 2. Touch Save to confirm your selection and to return to
the Display Preferences screen.
On the Settings screen, touch Display Preferences to view
a screen containing these buttons (see Figure 32): Date Format . Use the Date Format screen to choose
• Date Format from the following date formats:
• Date Separator • MMDDYYYY (default)
• Time Format • YYYYMMDD
• Unit System • DDMMYYYY
• Pressure Units Date Separator . Use the Date Separator screen to
• Number Format choose from the following date formats:
• None
Figure 32. Display preference screen • Slash (default)
• Hyphen
Time Format . Use theTime Format screen to choose
from the following time formats:
• 12 hour (default)
• 24 hour
Units System . Use the Display Units screen to choose
from the following display units:
• SI
• Inch-Pounds (default)
Pressure Units . Use the Pressure Units screen to
choose from the following pressure units:
Each of the buttons shows the name of a display
• kPaA (default if “SI” is chosen for display units)
preference and its format (current value).Touch any of
these buttons to view a screen where you can change the • kPaG
format.The button representing the format currently used • PSIA (default if “Inch-Pound” is chosen for display
is shaded (see the “MMDDYYYY” button). units)
• PSIG
Number Format .
• 1000000.0
• 1000000,0
44 RTAF-SVX001A-EN
Controls
To change the date or time:

Figure 34. Language page 1. Touch the square presenting the attribute you want to
change.The square becomes highlighted.
2. Touch the up or down arrow key on the screen until the
your desired selection appears. Repeat the process for
any other attributes you want to change.
3. Touch Save to confirm your selection and return to the
Settings screen.
Cleaning the Display

On the Settings screen, touch Clean Display to disable the
Tracer AdaptiView display screen for 15 seconds so that
you can clean the screen without it responding to touch.
During this time, the screen is black with a number in the
center that counts down the seconds. After 15 seconds, the
The language that is currently in use on the display is Settings screen re-appears.
expressed as the current value on the Language screen.
The button that displays the current value is shaded (see Figure 36. Countdown screen
the “English” buttoninFigure19as an example).
To change the language:
1. Touch the button that identifies the language you
prefer.
2. Touch Save to confirm your selection and to return to
the Settings screen.
Figure 35. Date and time screen
Security Settings
If security if enabled, theTracer AdaptiView display
requires that you log in with a four-digit security PIN to
make setting changes that are protected by security.This
feature prevents unauthorized personnel from doing so.
There are two levels of security, each allowing specific
changes to be made.
You can view all data without logging in.The log-in screen
appears only when you try to change a setting that is
The current date and time for the display is expressed as protected by security, or when you touch the Log in button
the current value.The current value appears below the from the Settings screen.
center line on the screen.
Disabling/Enabling Security
Above the center line, the following date and time
attributes appear: TheTracer AdaptiView display gives you the ability to
• Month disable or enable the security feature that allows a user to
log in and log out.
• Day
To disable security, you must be logged in:
• Year
1. From the Settings screen, touch the Security button.
• Hour The Security screen appears (Figure 37).
• Minute Note: If you are logged out, the Log in screen appears.
• AM/PM 2. Touch the Disable button.The button becomes shaded.
RTAF-SVX001A-EN 45
Controls
3. Touch Save.The Settings screen appears with only the 2. Use the keypad to enter your PIN.
Security button visible.The Log in/Logout button is a. The PIN is a four-digit number, which was
gone. configured for your system with theTracerTU
To enable security: service tool.
1. From the Settings screen, touch the Security button. b. As you enter the number, the PIN remains hidden
The Security screen appears (Figure 37). by asterisks.
2. Touch the Enable button.The button becomes shaded. Note: If you enter an invalid PIN, an error message
3. Touch Save.The Settings screen appears with a Log appears on the Log in screen.
out button, in addition to the Security button. 3. Touch Save.
Figure 37. Security screen - disable a. If you viewed the Log in screen from touching Log
in on the Settings screen, the Settings screen
appears with a Log out button on it.
b. If the Log in screen appeared when you tried to
change a setting, you return to that setting screen.
Note: The PIN is valid until 30 minutes of inactivity
passes, or until you log out.
Figure 39. Log in screen
Figure 38. Security settings screen
Logging Out
To log out:
1. Touch the Log out button. A confirmation screen
appears (Figure 40).
2. TouchYes to confirm that you want to log out.The
Settings screen appears with a Log in button on it.
Logging In
There are two levels of security: Figure 40. Log out confirmation screen
• Security Level 1 allows users to change a limited group
of secure settings.The default security PIN is 1111.
• Security Level 2 allows users to change all secure
settings.The default security PIN is 7123.
A technician must use theTracerTU service tool to define
a different PIN, or to recall a PIN that has been forgotten.
When defining a PIN inTracerTU, the technician enters a
4-digit PIN that corresponds with the desired level of
security.
To log in:
1. Touch the Log in button.The Log in screen appears
(Figure 38).
46 RTAF-SVX001A-EN
Controls
Tracer TU TracerTU is designed to run on a customer’s laptop,

connected to theTracer AdaptiView control panel with a
The AdaptiView™TD7 operator interface allows for daily USB cable.Your laptop must meet the following hardware
operational tasks and setpoint changes. However, to and software requirements:
adequately service Sintesis chillers,Tracer® TU service • 1 GB RAM (minimum)
tool is required. (Non-Trane personnel, contact your local
• 1024 x 768 screen resolution
Trane office for software purchase information.)TracerTU
adds a level of sophistication that improves service • CD-ROM drive
technician effectiveness and minimizes chiller downtime. • Ethernet 10/100 LAN card
This portable PC-based service-tool software supports
service and maintenance tasks, and is required for • Available USB 2.0 port
software upgrades, configuration changes and major • Microsoft® Windows® 7 Enterprise or Professional
service tasks. operating system (32-bit or 64-bit)
TracerTU serves as a common interface to allTrane® Note: TracerTU versions 8.6 and earlier will also
chillers, and will customize itself based on the properties of support Windows XP Professional
the chiller with which it is communicating.Thus, the operating system with Service Pack 3 (SP3)
service technician learns only one service interface. • Microsoft .NET Framework 4.0 or later
The panel bus is easy to troubleshoot using LED sensor Notes:
verification. Only the defective device is replaced.Tracer
TU can communicate with individual devices or groups of • TracerTU is designed and validated for this minimum
devices. laptop configuration. Any variation from this
configuration may have different results.Therefore,
All chiller status, machine configuration settings, support forTracerTU is limited to only those laptops
customizable limits, and up to 100 active or historic with the configuration previously specified.
diagnostics are displayed through the service-tool
• For more information, seeTTU-SVN01*-ENTracerTU
software interface.
Getting Started Guide
LEDs and their respectiveTracerTU indicators visually
confirm the availability of each connected sensor, relay,
and actuator.
Figure 41. Tracer TU
RTAF-SVX001A-EN 47
Pre-Start
Upon completion of installation, complete the Sintesis™
RTAF Installation Completion Check Sheet and Request for
Trane Service checklist in chapter “Log and Check Sheets,”
p. 86.
Important: Start-up must be performed byTrane or an
agent ofTrane specifically authorized to
perform start-up and warranty ofTrane
products. Contractor shall provideTrane (or
an agent ofTrane specifically authorized to
perform start-up) with notice of the
scheduled start-up at least two weeks prior
to the scheduled start-up.
48 RTAF-SVX001A-EN
Start-Up and Shutdown
Important: Initial unit commissioning start-up must be and automatically restart the pump when the unit
performed byTrane or an agent ofTrane starts normally.
specifically authorized to perform start-up 3. The unit will start normally, provided the following
and warranty ofTrane products. Contractor conditions exist:
shall provideTrane (or an agent ofTrane
specifically authorized to perform start-up) a. The UC800 receives a call for cooling and the
with notice of the scheduled start-up at least differential-to-start is above the setpoint.
two weeks prior to the scheduled start-up. b. All system operating interlocks and safety circuits
are satisfied.
Unit Start-Up
Extended Shutdown Procedure
NOTICE:
The following procedure is to be followed if the system is
Equipment Damage! to be taken out of service for an extended period of time,
Ensure that the compressor and oil sump heaters have e.g. seasonal shutdown:
been operating properly for a minimum of 24 hours 1. Test the unit for refrigerant leaks and repair as
before starting. Failure to do so could result in
necessary.
equipment damage.
2. Open the electrical disconnect for the chilled water
If required, once the system has been operating for pump. Lock the switches in the “OPEN” position.
approximately 30 minutes and has become stabilized,
complete the remaining start-up procedures, as follows: NOTICE:
1. Check the evaporator refrigerant pressure and the Equipment Damage!
condenser refrigerant pressure under Refrigerant To prevent pump damage, lock the chilled water pump
Report on the AdaptiView ™TD7.The pressures are disconnects open and verify pump is off before draining
referenced to sea level (14.6960 psia). water.
2. Check the EXV sight glasses after sufficient time has
elapsed to stabilize the chiller.The refrigerant flow past 3. Close all chilled water supply valves. Drain the water
the sight glasses should be clear. Bubbles in the from the evaporator.
refrigerant indicate either low refrigerant charge or 4. With the water drained from evaporator, disconnect
excessive pressure drop in the liquid line or a stuck 115 power from evaporator heaters at terminals 1X4-1
open expansion valve. A restriction in the line can and 1X4-2.
sometimes be identified by a noticeable temperature
differential between the two sides of the restriction. NOTICE:
Frost will often form on the line at this point. Proper
refrigerant charges are shown in the General Equipment Damage!
Information Section. Applying power to the evaporator heaters when no
water is present could result in damage to heaters.
Important: A clear sight glass alone does not mean that
the system is properly charged. Also check
5. Open the main electrical disconnect and lock in the
system subcooling, liquid level control and
“OPEN” position.
unit operating pressures.
If chiller is limited by any limiting conditions, contact local NOTICE:
Trane service organization for more information.
Equipment Damage!
Temporary Shutdown And Lock the disconnect in the “OPEN” position to prevent
accidental start-up and damage to the system when it
Restart has been shut down for extended periods.
To shut the unit down for a short time, use the following 6. At least every three months (quarterly), check the
procedure: refrigerant pressure in the unit to verify that the
1. Press the STOP key on the AdaptiviewTD7.The refrigerant charge is intact.
compressors will continue to operate and an
operational pumpdown cycle will be initiated.
2. UC800 pump control will turn off the pump (after a
minimum 1 min. delay) when the STOP key is pressed
RTAF-SVX001A-EN 49
Seasonal Unit Start-Up Procedure

NOTICE:
1. Close all valves and re-install the drain plugs in the
evaporator. Proper Water Treatment!
2. Service the auxiliary equipment according to the start- The use of untreated or improperly treated water in
up/maintenance instructions provided by the this equipment could result in scaling, erosion,
respective equipment manufacturers. corrosion, algae or slime. It is recommended that the
services of a qualified water treatment specialist be
3. Close the vents in the evaporator chilled water circuits. engaged to determine what water treatment, if any, is
4. Open all the valves in the evaporator chilled water required. Trane assumes no responsibility for
circuits. equipment failures which result from untreated or
improperly treated water, or saline or brackish water.
5. Open all refrigerant valves to verify they are in the
open condition. 4. Close the fused-disconnect switches that provides
6. If the evaporator was previously drained, vent and fill power to the chilled water pump.
the evaporator and chilled water circuit. When all air is 5. Start the evaporator water pump and, while water is
removed from the system (including each pass), install circulating, inspect all piping for leakage. Make any
the vent plugs in the evaporator water boxes. necessary repairs before starting the unit.
7. Check the adjustment and operation of each safety and 6. While the water is circulating, adjust the water flows
operating control. and check the water pressure drops through the
8. Refer to the sequence for daily unit startup for the evaporator. See “Pressure Drop Curves,” p. 21 and
remainder of the seasonal startup. water flow rates in “General Data,” p. 10.
7. Verify proper operation of flow switch on the
System Restart After Extended evaporator waterbox.
8. Stop the water pump.The unit is now ready for start-
Shutdown up as described previously.
NOTICE:
Equipment Damage!
Ensure that the compressor and oil sump heaters have
been operating properly for a minimum of 24 hours
before starting. Failure to do so could result in
equipment damage.
Follow the procedures below to restart the unit after

extended shutdown:
1. Verify that the liquid line service valves, oil line,
compressor discharge service valves and suction
service valves are open (backseated).
NOTICE:
Compressor Damage!
Catastrophic damage to the compressor will occur if
the oil line shut off valve or the isolation valves are left
closed on unit start-up.
2. Check the oil sump level.

3. Fill the evaporator water circuit. Vent the system while
it is being filled. Open the vent on the top of the
evaporator and condenser while filling and close when
filling is completed.
50 RTAF-SVX001A-EN
Sequence of Operation
This section will provide basic information on chiller • The text in the circles is the visible top level operating
operation for common events. With microelectronic modes that are displayed onTracer™ AdaptiView.
controls, ladder diagrams cannot show today’s complex • The shading of each software state circle corresponds
logic, as the control functions are much more involved to the shading on the time lines that show the state the
than older pneumatic or solid state controls. chiller is in.
Adaptive control algorithms can also complicate the exact There are five generic states that the software can be in:
sequence of operations.This section illustrates common
control sequences. • Power Up
• Stopped
Software Operation Overview
• Starting
The Software Operation Overview shown in Figure 42,
• Running
p. 51 is a diagram of the five possible software states.This
diagram can be though of as a state chart, with the arrows • Stopping
•
and arrow text depicting the transitions between states.

Figure 42. Software operation overviewFigure 42
Timelines
• The time line indicates the upper level operating mode, • Text outside a box or cylinder indicates time based
as it would be viewed on theTracer™ AdaptiView. functions.
• The shading color of the cylinder indicates the • Solid double arrows indicate fixed timers.
software state. Dashed double arrows indicate variable timers.
• Text in parentheses indicates sub-mode text as viewed
onTracer AdaptiView.
• Text above the time line cylinder is used to illustrate
inputs to the Main Processor.This may include user
input to theTracer AdaptiViewTouch screen, control
inputs from sensors, or control inputs from a Generic
BAS.
• Boxes indicate control actions such as turning on
relays, or pulsing compressor load or unload
solenoids.
• Smaller cylinders under the main cylinder indicate
diagnostic checks.
RTAF-SVX001A-EN 51
Power Up Diagram
Figure 43, p. 52 shows the respectiveTD-7 AdaptiView independent of the last mode. If the last mode before
screens during a power up of the UC800 and display.This power down was 'Auto', the transition from 'Stopped' to
process takes 25 seconds for the UC800 and 90 seconds for 'Starting' occurs, but it is not apparent to the user.
the display. On all power ups, the software model always
will transition through the 'Stopped' Software state
Figure 43. Sequence of operation: power up diagram
52 RTAF-SVX001A-EN
Power Up to Starting
Figure 44, p. 53 diagram shows the timing from a power • Need to cool (differential to start) already exists
up event to energizing the first compressor.The shortest • Oil level is detected immediately
allowable time would be under the following conditions:
The above conditions would allow for a minimum power
• No motor restart inhibit time left from subsequent up to starting the first compressor time of about 45
starts seconds (variations may exist due to options installed).
• Evaporator Water flow occurs quickly with pump on Note that it is not advisable to start a chiller “cold”, the oil
command heaters should be in operation for a sufficient length of
• Power up Start Delay set to 0 minutes time prior to first start. Consult the chiller’s IOM for
specifics.
Figure 44. Sequence of events: power up to starting
RTAF-SVX001A-EN 53
Stopped to Starting
Figure 45 shows the timing from a stopped mode to • Evaporator Water flow occurs quickly with pump on
energizing the first compressor.The shortest allowable command
time would be under the following conditions: • Need to cool (differential to start) already exists
• No motor restart inhibit time left from subsequent The above conditions would allow a compressor to start in
starts about 20 seconds.
Figure 45. Sequence of events: stopped to starting
54 RTAF-SVX001A-EN
Running (Lead Compressor/Circuit Start and Run)

Figure 46 shows a typical start and run sequence for the
lead compressor and its circuit.
Figure 46. Sequence of operation: running (lead compressor/circuit start nd run)
RTAF-SVX001A-EN 55
Running (Lag Compressor/Circuit Start and Run)

Figure 47 shows a typical start and run sequence for the
lag compressor and its circuit.
Figure 47. Sequence of operation: running (lag compressor/circuit start nd run)
56 RTAF-SVX001A-EN
Satisfied Setpoint
Figure 48 shows the normal transition from Running to
shutting down due to the Evap Leaving water temp falling
below the differential to stop setpoint.
Figure 48. Sequence of events: satisfied setpoint
RTAF-SVX001A-EN 57
Normal Shutdown to Stopped or Run Inhibit

Figure 49 shows theTransition from Running through a attempt to show the final mode if you enter the stop via
Normal (friendly) Shutdown.The Dashed lines on the top various inputs.
Figure 49. Sequence of events: normal shutdown to stopped or run inhibit
58 RTAF-SVX001A-EN
Immediate Shutdown to Stopped or Run Inhibit

Figure 50 shows the transition from Running through an to show the final mode if you enter the stop via various
Immediate Shutdown.The dashed lines on the top attempt inputs.
Figure 50. Sequence of events: immediate shutdown to stopped or run inhibit
RTAF-SVX001A-EN 59
Ice Making (Running to Ice Making to Running)

Figure 51 shows the transition from normal cooling to Ice
making, back to normal cooling.
Figure 51. Sequence of events: ice making (running to ice making to running)
60 RTAF-SVX001A-EN
Ice Making (Auto to Ice Making to Ice Making Complete)

Figure 52 shows the transition from Auto to Ice making, to
Ice Making Complete.
Figure 52. Sequence of events: ice making (auto to ice making to ice making complete)
RTAF-SVX001A-EN 61
Maintenance
WARNING NOTICE:
Hazardous Voltage w/Capacitors! Equipment Damage!
Failure to disconnect power and discharge capacitors Do not use detergents to clean coils. Use clean water
before servicing could result in death or serious injury. only. Use of detergents on coils could cause damage to
Disconnect all electric power, including remote coils.
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/ Monthly
inadvertently energized. For variable frequency drives or • Perform all weekly maintenance procedures.
other energy storing components provided by Trane or
• Record the system subcooling.
others, refer to the appropriate manufacturer’s literature
for allowable waiting periods for discharge of • Record the system superheat.
capacitors. Verify with an appropriate voltmeter that all
• Make any repairs necessary.
For additional information regarding the safe discharge Annual
of capacitors, see PROD-SVB06A-EN
• Perform all weekly and monthly procedures
This section describes the basic chiller preventive • Check the oil level while the unit is off. See “Oil Sump
maintenance procedures, and recommends the intervals Level Check,” p. 63.
at which these procedures should be performed. Use of a • Routine changing of the oil is not required. Make an
periodic maintenance program is important to ensure the oil analysis to determine the condition of the oil.
best possible performance and efficiency from a
Sintesis™ chiller. • HaveTrane or another qualified laboratory perform a
compressor oil analysis to determine system moisture
Use Operator Log (see “Log and Check Sheets,” p. 86) to content and acid level.
record an operating history for unit.The log serves as a
valuable diagnostic tool for service personnel. By • Contact a qualified service organization to leak-test the
observing trends in operating conditions, an operator can chiller, to check operating and safety controls, and to
anticipate and prevent problem situations. inspect electrical components for deficiencies
If unit does not operate properly during inspections, see • Clean and repaint any areas that show signs of
“Diagnostics,” p. 66. corrosion.
• Clean the condenser coils. See “Microchannel
Recommended Maintenance Condenser Coils,” p. 65.
Perform all maintenance procedures and inspections at NOTICE:

the recommended intervals.This will increase the life of Equipment Damage!
the chiller and minimize the possibility of costly failures.
Do not use detergents to clean coils. Use clean water
Weekly only. Use of detergents on coils could cause damage to
coils.
• At AdaptiView™TD7 orTracer™TU service tool, check
pressure for evaporator, condenser and intermediate • Clean the air filters in the bottom inlet hoods that
oil. extend from the back of the electrical panel.
• Observe liquid line sight glass on EXV. If liquid line • Check and tighten all electrical connections as
sight glass has bubbles measure the subcooling necessary.
entering the EXV. Subcooling should always be greater
than 10°F.
Important: A clear sight glass alone does not mean that
the system is properly charged. Also check
the rest of the system operating conditions.
• Inspect the entire system for unusual operation.
• Inspect the condenser coils for dirt and debris. If the
coils are dirty, see “Microchannel Condenser Coils,”
p. 65.
62 RTAF-SVX001A-EN
Maintenance
Refrigerant and Oil Lubrication System

Charge Management Oil Sump Level Check
Proper oil and refrigerant charge is essential for proper Figure 53. Oil sump level check
unit operation, unit performances, and environmental
protection. Only trained and licensed service personnel
should service the chiller.
Table 24 lists baseline measurements for Sintesis™ units
running at AHRI standard operating conditions. If chiller
measurements vary significantly from values listed below, 2
problems may exist with refrigerant and oil charge levels.
Contact your localTrane office.
Note: Low temperature applications units will have
values that vary from Table 24. Contact your local
Trane office for more information. 4 1
Table 24. Typical Sintesis baselines (AHRI conditions)
Measurement Baseline
Evaporator Pressure 50.5 psia
Evaporator Approach 3°F
EXV Position 45% open
3 2
Evaporator Fluid delta T - entering 54°F
Evaporator Fluid delta T - leaving 44°F
Oil Level
Discharge Superheat 25°F
Condenser Pressure 195 psia
Subcooling 18°F
1 Oil Separator 3 Refrigeration hose

2 Valves 4 Sight Glass
The oil level in the sump can be measured to give an

indication of the system oil charge. Follow the procedures
below to measure the level.
1. Run the unit as near to full load as possible for a
minimum of 30 minutes. For an accurate reading, 40 or
more minutes at full load with normal/steady
discharge superheat readings and no limits/warnings
is recommended. Assessing oil charge after running at
minimum or low loads may lead to an inaccurate
reading.
2. Cycle the compressor offline.
3. Let the chiller sit (powered, but offline) to allow the oil
separator heater to boil off the refrigerant that may be
in the oil separator. An initial assessment of the oil
separator level may be made after 30 minutes of heater
ON dwell time, but oil charge adjustments should not
be made without allowing the oil heaters to run for a
minimum of 4 hours.
RTAF-SVX001A-EN 63
Maintenance
Important: Do not operate the unit with the sight glass

service valves opened. Close the valves
while running before and after checking the
Microchannel Condenser Coils
oil level. Oil system function may be For proper operation, microchannel condenser coils must
affected and level reading will not be be cleaned regularly. Eliminate pollution and other
accurate during operation if valves are residual material help to extend the life of the coils and the
opened during operation. unit.
4. Attach a 3/8” or 1/2” hose with a sightglass in the Regular coil maintenance, including annual cleaning,
middle to the oil sump service valve (3/8” flare) and the enhances the unit’s operating efficiency by minimizing
oil separator service valve (3/8” flare). See Figure 53, compressor head pressure and amperage draw.The
p. 63 for valve locations. condenser coil should be cleaned at minimum once each
Note: Using high pressure rated clear hose with year, or more if the unit is located in a “dirty” or corrosive
appropriate fittings can help speed up the process. environment.
Hose must be rated to withstand system pressures
as found on unit nameplate. Coil Cleaning
5. After the unit is off line for 30 minutes, move the NOTICE:
sightglass along the side of the oil sump.
6. The nominal oil level from the bottom of the oil
Equipment Damage!
separator should be approximately 4 inches. Do not use detergents to clean coils. Use clean water
Depending on running conditions and oil heater dwell only. Use of detergents on coils could cause damage to
time, some deviation from nominal levels is expected. coils.
Important: If level is less than 1 inch from the bottom of Cleaning with cleansers or detergents is strongly
the oil separator, contact your localTrane discouraged due to the all-aluminum construction. Water
office. should prove sufficient. Any breach in the tubes can result
in refrigerant leaks.
WARNING
Hazardous Voltage w/Capacitors!
Failure to disconnect power and discharge capacitors
before servicing could result in death or serious injury.
Disconnect all electric power, including remote
disconnects and discharge all motor start/run
capacitors before servicing. Follow proper lockout/
inadvertently energized. For variable frequency drives or
other energy storing components provided by Trane or
others, refer to the appropriate manufacturer’s literature
for allowable waiting periods for discharge of
capacitors. Verify with an appropriate voltmeter that all
For additional information regarding the safe discharge
of capacitors, see PROD-SVB06A-EN
1. Disconnect Power to the unit.
WARNING
No Step Surface!
Failure to follow instruction below could result in death
or serious injury. Do not walk on the sheet metal drain
pan. Walking on the drain pan could cause the
supporting metal to collapse, resulting in the operator/
technician to fall.
Important: Bridging between the main supports

required before attempting to enter the unit.
Bridging may consist of multiple 2 by 12
boards or sheet metal grating.
64 RTAF-SVX001A-EN
Maintenance
2. Use a soft brush or vacuum to remove base debris or

surface loaded fibers from both sides of the coil.
Note: When possible, clean the coil from the opposite
direction of normal air flow (inside of unit out) to
push debris out.
3. Using a sprayer and water ONLY, clean the coil
following the guidelines below.
a. Sprayer nozzle pressure should not exceed 580 psi.
b. The maximum source angle should not exceed 25°
to the face of the coil. See Figure 54. For best results
spray the microchannel perpendicular to face of the
coil.
c. Spray nozzle should be approximately 1”-3” from
the coil surface.
d. Use at least a 15º fan type of spray nozzle.
Figure 54. Sprayer source angle
Note: To avoid damage from the spray wand contacting

the coil, make sure the 90º attachment does not
come in contact with the tube and fin as abrasion to
the coil could result.
RTAF-SVX001A-EN 65
Diagnostics
Diagnostic Name (Text) and Source: “not active” in as an exception to the active modes.The
Black text is the full-context diagnostic name with few or inactive modes are enclosed in brackets, [ ]. Note that the
no abbreviations. It has no intrinsic length limit. It may be modes used in this column are internal and not generally
used as a guide for translation, or in a human interface that annunciated to any of the formal mode displays.
can handle the unlimited length text. It is not currently Criteria: Quantitatively defines the criteria used in
used in any human interface. generating the diagnostic and, if nonlatching, the criteria
Where diagnostic text is different from full-context for auto reset. If more explanation is necessary a hot link
diagnostic name: to the Functional Specification is used.
• Italicized text is intended for use on the ServiceTool Reset Level: Defines the lowest level of manual
or on the operator Display. diagnostic reset command which can clear the diagnostic.
The manual diagnostic reset levels in order of priority are:
• Underlined text is intended for use on LCI-C. Local or Remote. For example, a diagnostic that has a reset
Diagnostic Name Source: Diagnostics may be shown in level of Remote, can be reset by either a remote diagnostic
the spec with a source of “xy”. In this case, letter “x” can be reset command or by a local diagnostic reset command.
either “1” or “2” (signifying which circuit) and letter “y” HelpText: Provides for a brief description of what kind of
can be “A” or “B” (signifying which compressor on that problems might cause this diagnostic to occur. Both
circuit). control system component related problems as well as
Affects Target: Defines the “target” or what is affected chiller application related problems are addressed (as can
by the diagnostic. Usually either the entire Chiller, or a possibly be anticipated).These help messages will be
particular Circuit or Compressor is affected by the updated with accumulated field experience with the
diagnostic (the same one as the source), but in special chillers.
cases functions are modified or disabled by the diagnostic.
None implies that there is no direct affect to the chiller, sub
components or functional operation.
Design Note: TU does not support the display of certain
targets on its Diagnostics pages although the functionality
implied by this table is supported.Targets such as Evap
Pump, Ice Mode, Heat Mode, ChilledWater Reset, External
Setpoints etc. – are displayed as simply “Chiller” even
though they do not imply a chiller shutdown – only a
compromise of the specific feature.
Severity: Defines the severity of the above effect.
Immediate means immediate shutdown of the affected
portion; for AFD generated diagnostics, Immediate
implies immediately de-energized compressor windings,
while Immediate (decel) implies controlled deceleration to
compressor stop. Normal means normal or friendly
shutdown of the affected portion, Special Action means a
special action or mode of operation (limp along) is
invoked, but without shutdown, and Info means an
Informational Note or Warning is generated. Design Note:
TU does not support display of “Special Action”, on its
Diagnostics pages, so that if a diagnostic has a special
action defined in the table below, it will be displayed only
as “Informational Warning” as long as no circuit or chiller
shutdown results. If there is a shutdown and special action
defined in the table, then theTU Diagnostics Page display
will indicate the shutdown type only.
Persistence: Defines whether or not the diagnostic and
its effects are to be manually reset (Latched), or can be
either manually or automatically reset when and if the
condition returns to normal (Nonlatched).
Active Modes [Inactive Modes]: States the modes or
periods of operation that the diagnostic is active in and, as
necessary, those modes or periods that it is specifically
66 RTAF-SVX001A-EN
Diagnostics
AFD Diagnostics
Table 25. AFD diagnostics
Diagnostic Active Modes

Name and Affects [Inactive Reset
Source Target Severity Persistence Modes] Criteria Level
AFD Fault. Numerous drive faults can cause this general fault
AFD Fault - xA Cprsr Immediate NonLatch All Local
including High Pressure Cutout for AFD compressors.
AFD Motor
Compressor current exceeded overload time vs. trip
Current Circuit Immediate Latch All Local
characteristic. Must trip = 132% RLA, Must hold=125%
Overload - xA
Respective AFD is reporting that it is still running the
compressor when the MP has commanded the drive/
compressor to be Off. Detection time shall be 10 seconds
minimum and 15 seconds maximum. On detection and until
Immediate the controller is manually reset: this diagnostic shall be
AFD Interrupt AFD Intended to be
Chiller Shutdown and Latch active and the alarm relay shall be energized, the Evap Pump Local
Failure - xA OFF
Special Action Output will be energized, the effected compressor will be
continually commanded off, and be unloaded, while a normal
stop shall be commanded to all other compressors. For as
long as compressor operation continues, the MP shall
continue oil return and fan control on the circuit affected.
RTAF-SVX001A-EN 67
Diagnostics
Starter Diagnostics
Table 26. Starter diagnostics

Compressor Acceleration Time Out Action set to Shutdown: Compressor motor
Did Not current did not drop below 85% RLA within the Maximum Acceleration
Cprsr
Accelerate: Cprsr Immediate Latch Setting setpoint. Compressor motor de-energized. See Current Local
Accelerating
Shutdown - Overload Protection specification.
xy
Compressor
The compressor did not come up to speed (fall to <85%RLA) in the
Did Not
allotted time defined by the Maximum Acceleration Timer and a
Accelerate: Cprsr Info Latch Start Mode Remote
transition was forced (motor put across the line) at that time. This
Transition -
applies to all starter types.
xy
Motor
Compressor current exceeded overload time vs. trip characteristic.
Current
Circuit Immediate Latch Cprsr Energized Must trip = 140% RLA, Must hold=125%, nominal trip 132.5% in 30 Local
Overload -
seconds
xy
Pre-Start and
Nom. trip: 60 seconds at greater than 112.5%, 2.5%, Auto Reset at
Over Voltage Chiller Normal NonLatch Any Ckt(s) Remote
110% or less for 10 cont secs.
Energzd
a) No current was sensed on one or two of the current transformer
inputs while running or starting (See Nonlatching Power Loss
Diagnostic for all three phases lost while running). Must hold = 20%
RLA. Must trip = 5% RLA. Time to trip shall be longer than guaranteed
Phase Loss - Start Sequence
Cprsr Immediate Latch reset on Starter Module at a minimum, 3 seconds maximum. Actual Local
xy and Run modes
design trip point is 10%. The actual design trip time is 2.64 seconds.
b) If Phase reversal protection is enabled and current is not sensed on
one or more current xformer inputs. Logic will detect and trip in a
maximum of 0.3 seconds from compressor start.
Compressor
energized to A phase reversal was detected on the incoming current. On a
Phase
Cprsr Immediate Latch transition compressor startup, the phase reversal logic must detect and trip in a Local
Reversal - xy
command [All maximum of 0.3 second from compressor start.
Other Times]
The compressor had previously established currents while running and
then all three phases of current were lost. Design: Less than 10% RLA,
trip in 2.64 seconds. This diagnostic will preclude the Phase Loss
Diagnostic and the Transition Complete Input Opened Diagnostic from
All compressor being called out. To prevent this diagnostic from occurring with the
running modes intended disconnect of main power, the minimum time to trip must be
Power Loss - [all compressor greater than the guaranteed reset time of the Starter module. Note:
Cprsr Immediate NonLatch Remote
xy starting and This diagnostic prevents nuisance latching diagnostics due to a
non-running momentary power loss – It does not protect motor/compressor from
modes] uncontrolled power reapplication. See Momentary Power Loss
Diagnostic for this protection. This diagnostic is not active during the
start mode before the transition complete input is proven. Thus a
random power loss during a start would result in either a “Starter Fault
Type 3” or a “Starter Did Not Transition” latching diagnostic.
Severe
Current All Running A 30% Current Imbalance has been detected on one phase relative to
Circuit Immediate Latch Local
Imbalance Modes the average of all 3 phases for 90 continuous seconds.
xy
Starter
Comm Loss: The Starter module detected a continual loss of communication with
Main Cprsr Immediate Latch All the main processor for greater than the Communications Loss Time Local
Processor - bound setpoint.
xy
Detected compressor currents greater than 10% RLA on any or all
phases when the compressor was commanded off. Detection time shall
Starter
be 5 second minimum and 10 seconds maximum. On detection and
Starter Contactor not
Info and until the controller is manually reset: generate diagnostic, energize the
Contactor Energized
Chiller Special Latch appropriate alarm relay, continue to energize the Evap Pump Output, Local
Interrupt [Starter
Action continue to command the affected compressor off, fully unload the
Failure – xy Contactor
effected compressor and command a normal stop to all other
Energized]
compressors. For as long as current continues, perform liquid level, oil
return, and fan control on the circuit effected.
68 RTAF-SVX001A-EN
Diagnostics
Table 26. Starter diagnostics (continued)

The Starter Module did not receive a transition complete signal in the
Starter Did designated time from its command to transition. The Must Hold time
On the first
Not from the Starter Module transition command is 1 second. The Must Trip
Cprsr Immediate Latch check after Local
Transition - time from the transition command is 6 seconds. Actual design is 2.5
transition.
xy seconds. This diagnostic is active only for Y-Delta, Auto-Transformer,
Primary Reactor, and X-Line Starters.
While in the Starter Dry Run Mode either 50% Line Voltage was sensed
Starter Dry Starter Dry Run
Circuit Immediate Latch at the Potential Transformers or 10% RLA Current was sensed at the Local
Run Test - xy Mode
Current Transformers.
Starter
Failed to
Cprsr Immediate Latch All Starter failed to arm or start within the allotted time (15 seconds). Local
Arm/Start -
xy
This is a specific starter test where 1M(1K1) is closed first and a check
Starting - Y
Starter Fault is made to ensure that there are no currents detected by the CT's. If
Cprsr Immediate Latch Delta Starters Local
Type I - xy currents are detected when only 1M is closed first at start, then one of
Only
the other contactors is shorted.
a. This is a specific starter test where the Shorting Contactor (1K3) is
individually energized and a check is made to ensure that there are no
Starting - All
Starter Fault currents detected by the CT's. If current is detected when only S is
Cprsr Immediate Latch types of Local
Type II - xy energized at Start, then 1M is shorted. b. This test in a. above applies
starters
to all forms of starters (Note: It is understood that many starters do
not connect to the Shorting Contactor.).
As part of the normal start sequence to apply power to the compressor,
Starting
the Shorting Contactor (1K3) and then the Main Contactor (1K1) were
Starter Fault [Adaptive
Cprsr Immediate Latch energized. 1.6 seconds later there were no currents detected by the Local
Type III - xy Frequency
CT's for the last 1.2 Seconds on all three phases. The test above applies
Starter Type]
to all forms of starters except Adaptive Frequency Drives.
Starter
Module
Memory
Error Type 1 Checksum on RAM copy of the Starter LLID configuration failed.
Cprsr Info Latch All Local
- xy Configuration recalled from EEPROM.
(Starter
Mem Err
Type 1 - xy)
Starter
Module
Memory
Error Type 2 Checksum on EEPROM copy of the Starter LLID configuration failed.
Cprsr Immediate Latch All Local
- xy Default configuration loaded into RAM and EEPROM.
(Starter
Mem Err
Type 2 - xy)
Transition
The Transition Complete input was found to be opened with the
Complete
compressor motor running after a successful completion of transition.
Input
All running This is active only for Y-Delta, Auto-Transformer, Primary Reactor, and
Opened - xy Cprsr Immediate Latch Local
modes X-Line Starters. To prevent this diagnostic from occurring as the result
(Trnsn
of a power loss to the contactors, the minimum time to trip must be
Compl Input
greater than the trip time for the power loss diagnostic.
Open xy)
Transition
Complete
Input The Transition Complete input was found to be shorted before the
Shorted - xy Cprsr Immediate Latch Pre-Start compressor was started. This is active for all electromechanical Local
(Trnsn starters.
Compl Input
Short xy)
Pre-Start and
Under Nom. trip: 60 seconds at less than 87.5%, 2.8% at 200V 1.8% at
Chiller Normal NonLatch Any Ckt(s) Remote
Voltage 575V, Auto Reset at 90% or greater for 10 cont secs.
Energzd
RTAF-SVX001A-EN 69
Diagnostics
Main Processor Diagnostics

Table 27. Main processor diagnostics
Active
Modes
Diagnostic Affects [Inactive Reset
Name Target Severity Persistence Modes] Criteria Level
AFD%RLA
Cprsr Normal Latch All Out-Of-Range Low or Hi or bad LLID Remote
Feedback - xA
The BAS was setup as “installed” at the MP and the Lontalk LCIC lost
communications with the BAS for 15 contiguous minutes after it had
been established. Refer to Section on Setpoint Arbitration to determine
how setpoints and operating modes may be affected by the comm loss.
BAS Info and
The chiller follows the value of the Tracer Default Run Command which
Communication Chiller Special NonLatch All Remote
can be previously written by Tracer and stored nonvolatilely by the MP
Lost Action
(either use local or shutdown). Note that this diagnostic is never
operational for BacNet Communication interface (BCIC) and only
operational with a LonTalk Communication interface (LCIC) if so
configured by the BAS or Tracer system.
The BAS was setup as “installed” and the BAS did not communicate with
BAS Failed to the Lontalk LCIC within 15 minutes after chiller controls power-up.
Establish Info and Refer to Section on Setpoint Arbitration to determine how setpoints and
Communication Chiller Special NonLatch At power-up operating modes may be affected. Note that this diagnostic is never Remote
BAS Failed to Action operational for BacNet Communication interface (BCIC) and only
Establish Comm operational with a LonTalk Communication interface (LCIC) if so
configured by the BAS or Tracer system.
Service
Chiller Service Chiller service interval time has elapsed. Chiller service is
Chiller Warning Latch Messages Remote
Recommended recommended.
Enabled
Compressor
Discharge
Refrigerant
Temperature
Sensor - xy
Cprsr Immediate Latch All Bad Sensor or LLID Remote
Cprsr Disch Rfgt
Temp Sensor -
xy
Disch Rfgt Temp
Sensor - xy
Condenser
Refrigerant
Pressure Sensor
Condenser Rfgt Circuit Immediate Latch All Bad Sensor or LLID Remote
Pressure Sensor
Cond Rfgt
Pressure Sensor
Emergency Stop EMERGENCY STOP FEEBBACK INPUT is open. An external interlock has
Feedback Input Chiller Immediate Latch All tripped. Time to trip from input opening to unit stop shall be 0.1 to 1.0 Local
Emergency Stop seconds.
Evap Water
Pump 1 Svc
Service
Recommended
Chiller Info Latch Messages Pump service recommended as service interval hours have elapsed. Remote
Evap Water
Enabled
Pump 1 Svc
Recom
Evap Water
Pump 2 Svc
Service
Recommended
Chiller Info Latch Messages Pump service recommended as service interval hours have elapsed. Remote
Evap Water
Enabled
Pump 2 Svc
Recom
The Evaporator approach temperature for the respective circuit (ELWT
Respective – Evap Sat Temp Ckt x) is negative by more than 10°F for 1 minute
Evaporator
Circuit Immediate Latch circuit continuously while the circuit / compressor is operating. Either the Evap Remote
Approach Error
running Leaving Water Temp sensor or Evap Suction Rfgt Pressure Sensor Ckt
x is in error.
70 RTAF-SVX001A-EN
Diagnostics
Table 27. Main processor diagnostics (continued)
Active
Modes
Evaporator
Entering Water
Pressure Chiller Info Latch All Bad Sensor or LLID Remote
Evap Entering
Water Pressure
Evaporator
Entering Water
Temperature
Sensor Bad Sensor or LLID. Note: Entering Water Temp Sensor is used in EXV
Evaporator Chiller Normal Latch All pressure control as well as ice making so it must cause a unit shutdown Remote
Entering Water even if ice or CHW reset is not installed.
Temp Sensor
Evap Ent Water
Temp Sensor
Evaporator
Isolation Valve
Closed Switch
Failure
Evaporator isolation valve open limit switch state does not match
Evap Isolation Circuit Immediate Latch All Local
expected value. See Evaporator Isolation Valve spec for details.
Valve Closed
Switch Failure
Evap Iso Vlv
Closed Sw Fail
Evaporator
Isolation Valve
Failed To Close
Evaporator isolation valve was commanded to close, but limit switches
Evap Isolation
Circuit Immediate Latch All did not make expected changes within allotted time. See Evaporator Local
Valve Failed To
Isolation Valve spec for details.
Close
Evap Iso Vlv
Failed To Close
Evaporator
Isolation Valve
Failed To Open
Evaporator isolation valve was commanded to open, but limit switches
Evap Isolation
Circuit Immediate Latch All did not make expected changes within allotted time. See Evaporator Local
Valve Failed To
Isolation Valve spec for details.
Open
Evap Iso Vlv
Failed To Open
Evaporator
Isolation Valve
Illegal Switch
State Both evaporator isolation valve limit switches were closed at the same
Evap Isolation Circuit Immediate Latch All time, which should not be possible. Check for limit switch failure or Local
Valve Illegal improperly adjusted switch points.
Switch State
Evap Iso Vlv
Illegal Sw Stat
Evaporator
Isolation Valve
Open Switch
Failure
Evaporator isolation valve closed limit switch state does not match
Evap Isolation Circuit Immediate Latch All Local
expected value. See Evaporator Isolation Valve spec for details.
Valve Open
Switch Failure
Evap Iso Vlv
Open Sw Fail
Evaporator
Leaving Water
Evap Leaving
Water Pressure
RTAF-SVX001A-EN 71
Diagnostics
Active
Modes
Evaporator
Leaving Water
Temperature
Sensor
Evaporator
Chiller Normal Latch All Bad Sensor or LLID Remote
Leaving Water
Temp Sensor
Evap Leav
Water Temp
Sensor
For systems with no evaporator pump, a single evaporator pump, or a
single inverter driving dual evaporator pumps, an immediate shutdown
Immediate shall be performed. For multiple pump systems, detection of a pump
Evaporator or Warning fault will generally cause pump control to switch to the redundant
Chiller NonLatch All Remote
Pump 1 Fault and Special pump. For single inverter, dual pump configuration, switching to the
Action redundant pump can only happen after the fault is cleared. Specific
details of special action are described in
Evaporator_Water_Pump_Control.doc
For systems with no evaporator pump, a single evaporator pump, or a
single inverter driving dual evaporator pumps, an immediate shutdown
Immediate shall be performed. For multiple pump systems, detection of a pump
Evaporator or Warning fault will generally cause pump control to switch to the redundant
Chiller NonLatch All Remote
Pump 2 Fault and Special pump. For single inverter, dual pump configuration, switching to the
Action redundant pump can only happen after the fault is cleared. Specific
details of special action are described in
Evaporator_Water_Pump_Control.doc
Evaporator
Bad Sensor or LLID. Note: The Evap Pool Temp Sensors are used for
Refrigerant Pool
evaporator freeze protection (running and non-running). Invalidate
Temperature
Info and evaporator pool temperature sensor measurement if this diagnostic is
Sensor
Circuit Special Latch All active. If evaporator isolation valves are installed, revert to Evaporator Remote
Evap Rfgt Pool
Action Shell Refrigerant Saturated Temperature for freeze protection
Temp Sensor
functions. If evaporator isolation valves are not installed, revert to
Evap Rfgt Pool
Evaporator Saturated Temperature for freeze protection functions.
Temp Sensor
The evaporator refrigerant pool temperature measurement is larger
Evaporator
than the evaporator entering water temperature by more than 4°C
Refrigerant Pool
(7.2°F) for 5 continuous minutes. There is an ignore time of 2 minutes
Temperature
following circuit startup. The trip criteria is not evaluated (and time
Sensor Error -
Info and Ckt Energized above the threshold is not counted) until the ignore time passes.
Cktx
Circuit Special Latch [Ckt Not Invalidate evaporator pool temperature sensor measurement if this Local
Evap Rfgt Pool
Action Energized] diagnostic is active. If evaporator isolation valves are installed, revert
Temp Sensor
to Evaporator Shell Refrigerant Saturated Temperature for freeze
Error - Cktx
protection functions. If evaporator isolation valves are not installed,
Evap Pool Temp
revert to Evaporator Saturated Temperature for freeze protection
Error Cktx
functions.
Evaporator
Shell
Refrigerant
Bad Sensor or LLID. Note: The evaporator shell refrigerant pressure
Pressure Sensor
sensor is used to avoid high shell pressures, to equalize evaporator and
Evaporator Circuit Normal Latch All Remote
condenser pressure prior to circuit start, and as a backup sensor to the
Shell Rfgt
pool temperature sensor.
Pressure Sensor
Evap Shell Rfgt
Press Sensor
Evaporator
Water Flow The entering evaporator water temp fell below the leaving evaporator
(Entering Water water temp by more than 2°F for 180 °F-sec, minimum trip time 30
Any Ckt
Temp) seconds. It can warn of improper flow direction through the evaporator,
Energized [No
Evap Water Chiller Info Latch misbound water temperature sensors, improper sensor installation, Remote
Ckts
Flow (Entering partially failed sensors, or other system problems. Note that either
Energized]
Water Temp) entering or leaving water temp sensor or the water system could be at
Evap Flow (Ent fault.
Water Temp)
72 RTAF-SVX001A-EN
Diagnostics
Active
Modes
A. The Evaporator water flow switch input was open for more than 6
Evaporator
contiguous seconds (or 15 seconds for thermal dispersion type flow
Water Flow Lost [All Stop
Chiller Immediate NonLatch switch). B. This diagnostic does not de-energize the evap pump output. Remote
Evap Water modes]
C. 6 seconds of contiguous flow shall clear this diagnostic. (further
Flow Lost
review needed when implementing thermal dispersion for Pueblo)
Evaporator
Water Flow Lost For dual evaporator pump configurations only. Evaporator Water Flow
Warning
– Pump 1 Lost diagnostic occurred while Pump 1 was the selected pump. Specific
Chiller and Special NonLatch All Remote
Evap Water details of special action are described in
Action
Flow Lost Pump Evaporator_Water_Pump_Control.doc
1
Evaporator
Water Flow Lost For dual evaporator pump configurations only. Evaporator Water Flow
Warning
– Pump 2 Lost diagnostic occurred while Pump 2 was the selected pump. Specific
Chiller and Special NonLatch All Remote
Evap Water details of special action are described in
Action
Flow Lost Pump Evaporator_Water_Pump_Control.doc
2
Estab. Evap. Evaporator water flow was not proven within 20 minutes of the
Evaporator
Water Flow on Evaporator water pump relay being energized in normal “Stop” to
Water Flow
going from “Auto” transition. If the pump is overridden to “On” for certain
Overdue Chiller Normal NonLatch Remote
STOP to AUTO diagnostics, the delay on diagnostic callout shall be only 255 seconds.
Evap Water
or Evap Pump The pump command status will not be effected by this diagnostic in
Flow Overdue
Override. either case.
Evaporator
Water Flow
After the pump request was activated, the evaporator water flow
Overdue – Warning
overdue wait time elapsed before water flow was established. Special
Pump 1 Chiller and Special NonLatch All Remote
action is to keep the evap pump request active in a diagnostic override
Evap Wtr Flow Action
mode. See Evaporator_Water_Pump_Control.doc
Overdue Pump
1
Evaporator
Water Flow
After the pump request was activated, the evaporator water flow
Overdue – Warning
overdue wait time elapsed before water flow was established. Special
Pump 2 Chiller and Special NonLatch All Remote
action is to keep the evap pump request active in a diagnostic override
Evap Wtr Flow Action
mode. See Evaporator_Water_Pump_Control.doc
Overdue Pump
2
Excessive The condenser pressure sensor of this circuit has detected a condensing
Condenser Circuit Immediate Latch All pressure in excess of the design high side pressure as limited by the Remote
Pressure particular compressor type.
External Chilled
a. Function Not “Enabled”: no diagnostics. b. “Enabled “: Out-Of-Range
Water Setpoint
Chiller Info Latch All Low or Hi or bad LLID, set diagnostic, default CWS to next level of Remote
Ext Chilled Wtr
priority (e.g. Front Panel SetPoint).
Setpt
External
Demand Limit a. Not “Enabled”: no diagnostics. b. “Enabled “: Out-Of-Range Low or
Setpoint Chiller Info Latch All Hi or bad LLID, set diagnostic, default CLS to next level of priority (e.g. Remote
Ext Demand Front Panel SetPoint.)
Limit Setpoint
EXV Pressure
Equalization
EXV Pressure Equalization process failed to meet the equalization
Failed Circuit Immediate Latch All Remote
criteria within the allotted time.
EXV Press
Equalization Fail
Heat Recovery
Entering Water
Temperature
Sensor
Heat Recovery Chiller Info Latch All Bad Sensor or LLID Remote
Entering Water
Temp Sensor
Heat Rcvry Ent
Water Temp
RTAF-SVX001A-EN 73
Diagnostics
Active
Modes
Heat Recovery
Leaving Water
Temperature
Sensor
Heat Recovery Chiller Info Latch All Bad Sensor or LLID Remote
Leaving Water
Temp Sensor
Heat Rcvry Leav
Water Temp
High
Compressor
The compressor discharge temperature exceeded 199.4 F (without oil
Refrigerant
All cooler) or 230ºF (with oil cooler). This diagnostic will be suppressed
Discharge Temp
[compressor during Stopping mode or after the compressor has stopped. Note: As
- xy
Cprsr Immediate Latch run unload or part of the Compressor High Temperature Limit Mode (aka Minimum Remote
High Cprsr Rfgt
compressor Capacity Limit), the compressor shall be forced loaded as the filtered
Discharge Temp
not running] discharge temperature reaches 190ºF (without oil coolers), or 220ºF
- xy
(with oil coolers).
High Cprsr Disch
Temp xy
High Differential
Refrigerant
Pressure - xy
High Differential Cprsr GP2 Cprsr: The differential pressure for the respective circuit was above
Cprsr Normal Latch Remote
Rfgt Pressure - Energized 275 Psid (1890 kPa) for 2 consecutive samples 5 seconds apart.
xy
High Diff Rfgt
Pressure - xy
The evaporator refrigerant pressure of either circuit has risen above
190 psig. The evaporator water pump relay will be de-energized to stop
High Evaporator the pump regardless of why the pump is running. The diagnostic will
Refrigerant auto reset and the pump will return to normal control when all of the
Pressure Chiller Immediate NonLatch All evaporator pressures fall below 185 psig. The primary purpose is to Remote
High Evap Rfgt stop the evaporator water pump and its associated pump heat from
Pressure causing refrigerant side pressures, close to the evaporator relief valve
setting, when the chiller is not running, such as could occur with Evap
Water Flow Overdue or Evaporator Water Flow Loss Diagnostics.
The evaporator shell refrigerant pressure is installed, is valid, and has
risen above 190 psig.
- De-energize evaporator water pump regardless of why the pump is
running.
- Open the circuit’s EXV to 20% to allow refrigerant flow to other parts
High Evaporator
of the chiller, if liquid line refrigerant pressure is less than 170 psig.
Shell
Return EXV to normal control (allow it to close until needed for circuit
Refrigerant
operation) if liquid line refrigerant pressure is greater than 175 psig.
Pressure –
Automatically clear diagnostic when evaporator shell refrigerant
Circuit 1
Chiller Immediate NonLatch All pressure is valid and drops below 180 psig. Remote
High Evap Shell
- Allow evaporator water pump to return to normal control.
Rfgt Pressure -
- Return circuit’s EXV to normal control (allow it to close until needed
Ckt1
for circuit operation).
High Evap Shell
Primary causes of this diagnostic:
Press Ckt1
- Evaporator water pump heat transferred to evaporator, either by flow
blockage, or by lack of heat dissipation in the water loop in the presence
of flow.
- Commissioning unit in high ambient temperature environments.
- Water box heater thermostat failed closed.
High Evaporator
Shell
Refrigerant
Pressure –
Circuit 2
Chiller Immediate NonLatch All See Circuit 1 description. Remote
High Evap Shell
Rfgt Pressure -
Ckt2
High Evap Shell
Press Ckt2
74 RTAF-SVX001A-EN
Diagnostics
Active
Modes
Either the leaving or the entering water temperature exceeded the high
evap water temp limit (TU service menu settable –default
Only effective
105F(65.55C), range 80F(26.67C)-150F(65.55C) for 15 continuous
if either
seconds. The evaporator water pump relay will be de-energized to stop
1)Evap Wtr
High Evaporator the pump but only if it is running due one of the diagnostics listed on
Flow Overdue
Water the left. The diagnostic will auto reset and the pump will return to
Info and 2)Evap Wtr
Temperature normal control when both the entering and leaving temperatures fall
Chiller Special NonLatch Flow Loss or Remote
High Evap 5°F below the trip setting. The primary purpose is to stop the
Action 3)Low Evap
Water evaporator water pump and its associated pump heat from causing
Rfgt Temp,-
Temperature excessive waterside temperatures and waterside pressures when the
Unit Off,
chiller is not running but the evap pump is on due to either Evap Water
diagnostic is
Flow Overdue, Evaporator Water Flow Loss, or Low Evap Temp – Unit
active.
Off Diagnostics. This diagnostic will not auto clear solely due to the
clearing of the enabling diagnostic.
High Motor
Winding
Temperature –
The respective compressor’s motor winding thermostat is detected to
xA Circuit Immediate Latch All Local
be open. The compressor shall stop within 5 seconds of this diagnostic.
High Mtr
Windng Temp -
xA
All
High Oil [compressor
Temperature - Cprsr Immediate Latch run unload or The oil temperature entering the compressor exceeded 199.4°F. Remote
xy compressor
not running]
A high pressure cutout was detected; trip at 315 ± 5 PSIG. For AFD
High Pressure compressor configurations, the HPC is connected directly to the AFD
Cprsr Immediate Latch All Local
Cutout - xy and the UC800 will get an AFD Fault – xA diagnostic when the HPC is
tripped.
High Refrigerant
The pressure ratio for the respective circuit exceeded 12.3 for 1
Pressure Ratio -
Cprsr contiguous minute while any compressor is running or in service
xy Cprsr Immediate Latch Remote
Energized pumpdown. This pressure ratio is a fundamental limitation of the HiVi
High Rfgt Press
compressor. The pressure ratio is defined as Pcond (abs)/Pevap(abs).
Ratio - xy
LCI-C Software
The neuron software in the LCI-C module does not match the chiller
Mismatch: Use
type. Download the proper software into the LCI-C neuron. To do this,
BAS Tool Chiller Info Nonlatch All Remote
use the Rover service tool, or a LonTalk® tool capable of downloading
LCI-C Software
software to a Neuron 3150®.
Mismatch
Liquid Line Bad Sensor or LLID. Note: This is the subcooled liquid line pressure
Circuit Normal Latch All Remote
Pressure Sensor sensor.
Liquid Line
Temperature
Sensor
Liquid Line Circuit Normal Latch All Bad Sensor or LLID. Note: This is the subcooled liquid line temp sensor. Remote
Temp Sensor
Liquid Line
Temp Sensor
Loss of Oil for
Compressor Starter In running modes, Oil Loss Level Sensor detects lack of oil in the oil
(Running) Circuit Immediate Latch Contactor sump feeding the compressor (distinguishing a liquid flow from a vapor Local
Loss of Oil for Energized flow).
Cprsr (Run)
Loss of Oil for Oil Loss Level Sensor detects a lack of oil in the oil sump feeding the
Compressor Immediate Compressor compressor for 90 seconds after EXV preposition is completed (and
(Stopped) Circuit and Special Latch Pre-start [all before EXV equalization, if applicable) on an attempted circuit start. Local
Loss of Oil for Action other modes] Note: Compressor start is delayed pending oil detection during that
Cprsr (Stop) time, but not allowed once the diagnostic occurs.
RTAF-SVX001A-EN 75
Diagnostics
Active
Modes
Low Differential
Refrigerant The system differential pressure for the respective circuit was below the
Pressure - xy greater of 25 psid (240.5 kPa) or the pressure ratio listed in the table
Low Differential Cprsr in GP2 Compressor Type FSpec while the compressor is running for a
Cprsr Immediate Latch Remote
RfgtPressure - Energized period of time dependent on the deficit (15 sec ignore time from circuit
xy start) – refer to the Oil Flow Protection specification for the time to trip
Low Diff Rfgt function.
Press - xy
While Running Normally, the Discharge Superheat was less than the
Low Discharge Any Running Low Discharge Superheat Setpoint for more than 6500 degree F
Cprsr Normal Latch Remote
Superheat - xy Mode seconds. At circuit startup, the Discharge Superheat will be ignored for
5 minutes.
The respective circuit’s LERTC Integral was seen to be higher than ½
of its trip value (1,125°F-sec) while the chiller is in the Stop mode, or
Low Evaporator in Auto mode with no compressors running for at least one minute. The
Temp: Circuit 1: Unit in Stop LERTC integral is increased if the Evap Refrigerant Pool Temp is below
Unit Off Mode, or in the value of the Low Evap Rfgt Temp Cutout +4°F. Energize Evap Water
Low Evaporator Evap Special Auto Mode Pump and Off-Cycle Freeze Avoidance Request Relay until diagnostic
NonLatch Remote
Temp: Ckt 1: Pump Action and No Ckt's auto resets, then return to normal evap pump control and de-energize
Unit Off Energzd [Any the Freeze Avoidance Request. Automatic reset occurs when the
Low Evap Temp: Ckt Energzd] respective Evap Rfgt Pool Temp rises 2°F (1.1°C) above the LERTC
Unit Off cutout setting and the Chiller Off LERTC Integral is less than 1/3 of its
trip value. This diagnostic even while active, does not prevent operation
of either circuit.
The respective circuit’s LERTC Integral was seen to be higher than ½
of its trip value (1,125°F-sec) while the chiller is in the Stop mode, or
Low Evaporator in Auto mode with no compressors running for at least one minute. The
Temp: Circuit 2: Unit in Stop LERTC integral is increased if the Evap Refrigerant Pool Temp is below
Unit Off Mode, or in the value of the Low Evap Rfgt Temp Cutout +4°F. Energize Evap Water
Low Evaporator Evap Special Auto Mode Pump and Off-Cycle Freeze Avoidance Request Relay until diagnostic
NonLatch Remote
Temp: Ckt 2: Pump Action and No Ckt's auto resets, then return to normal evap pump control and de-energize
Unit Off Energzd [Any the Freeze Avoidance Request. Automatic reset occurs when the
Low Evap Temp: Ckt Energzd] respective Evap Rfgt Pool Temp rises 2°F (1.1°C) above the LERTC
Unit Off cutout setting and the Chiller Off LERTC Integral is less than 1/3 of its
trip value. This diagnostic even while active, does not prevent operation
of either circuit.
Either the entering or leaving evaporator water temp. fell below the
Evap
leaving water temp cutout setting for 30 degree F seconds while the
Pump Unit in Stop
Low Evaporator Chiller is in the Stop mode, or in Auto mode with no compressors
and Mode, or in
Water Temp running. Energize Freeze Avoidance Request Relay and Evap Water
Freeze Special Auto Mode
(Unit Off) NonLatch Pump Relay until diagnostic auto resets, then de-energize the Freeze Remote
Avoidanc Action and No Ckt(s)
Low Evap Water Avoidance Request Relay and return to normal evap pump control.
e Energzd [Any
Temp-Unit Off Automatic reset occurs when both temps rise 2°F (1.1°C) above the
Request Ckt Energzd]
cutout setting for 5 minutes, or either circuit starts. This diagnostic
Relay
even while active, does not prevent operation of either circuit.
Low Evaporator The evaporator entering or leaving water temperature fell below cutout
Any Ckt[s]
Water Temp Immediate setpoint for 30 degree F Seconds while the compressor was running.
Energzd [No
(Unit On) Chiller and Special NonLatch Automatic reset occurs when both of the temperature rises 2°F (1.1°C) Remote
Ckt(s)
Low Evap Water Action above the cutout setting for 2 minutes. This diagnostic shall not de-
Energzd]
Temp-Unit On energize the Evaporator Water Pump Output.
The intermediate oil pressure sensor for this compressor was out of the
Cprsr
acceptable pressure range for 15 seconds, while the Delta Pressure was
Energized and
Low Oil Flow - xy Cprsr Immediate Latch greater than 15 Psid (172.4 kPa).: Acceptable range is 0.50 > (PC-PI) Local
Delta P above
/ (PC-PE) for the first 2.5 minutes of operation, and 0.28 > (PC-PI) /
15 Psid
(PC-PE) thereafter.
The respective Evaporator Refrigerant Pool Temperature dropped below
the Low Refrigerant Temperature Cutout Setpoint for 2250°F-sec
All Ckt (12°F-sec max rate for early circuit startup period) while the circuit was
Low Refrigerant
Circuit Immediate Latch Running running. The minimum LRTC setpoint is -5°F (18.7 Psia) the point at Remote
Temperature
Modes which oil separates from the refrigerant. The integral is held nonvolatile
though power down, is continuously calculated, and can decay or build
during the circuit off cycle as conditions warrant.
76 RTAF-SVX001A-EN
Diagnostics
Active
Modes
a. The Suction Pressure dropped below 10 Psia just prior to compressor
Low Suction
start (after EXV preposition). b. During Early Startup Period: the
Refrigerant
Suction Pressure fell below a pressure equal to Condenser Pressure ÷
Pressure Cprsr Prestart
8 but as limited to not less than 6 or greater than10 psia. c. After Early
Low Suction Circuit Immediate Latch and Cprsr Local
Startup Period expires: The Suction Pressure fell below 16 Psia.
Rfgt Pressure Energized
(Note: the Early Startup Period is between 1 and 5 min as an inverse
Low Suction
function of the Cond Temp measured at time of circuit startup).
Rfgt Pressure
Mfr
Maintenance
Recommended - Service
Compressor service recommended as service interval hours have
xy Cprsr Info Latch Messages Remote
elapsed.
Maint Enabled
Recommended
xy
MP: Invalid
None Immediate Latch All MP has an invalid configuration based on the current software installed. Remote
Configuration
The main processor has successfully come out of a reset and built its
application. A reset may have been due to a power up, installing new
MP: Reset Has
None Info Latch All software or configuration. This diagnostic is immediately and Remote
Occurred
automatically cleared and thus can only be seen in the Historic
Diagnostic List in Tracer TU.
No Differential
Refrigerant
Pressure - xy
Compressor The system differential pressure was below 7.7 Psid (53 kPa) for 6
No Differential
Cprsr Immediate Latch running on seconds after the 11 seconds ignore time relative to cprsr/circuit Remote
Rfgt Pressure -
Circuit startup had expired.
xy
No Diff Rfgt
Press - xy
Starter The Intermediate Oil Pressure Sensor for this cprsr is reading a
Oil Flow
Contactor pressure either above its respective circuit’s Condenser Pressure by 15
Protection Fault Cprsr Immediate Latch Local
Energized [all Psia or more, or below its respective Suction Pressure 10 Psia or more
xy
Stop modes] for 30 seconds continuously.
Oil Pressure
Cprsr Immediate Latch All Bad Sensor or LLID Remote
Sensor - xy
Oil Temperature
Sensor - xy
Cprsr Normal Latch All Bad Sensor or LLID Remote
Oil Temp Sensor
- xy
Outdoor Air
Temperature
Sensor Chiller Normal Latch All Bad Sensor or LLID. Remote
Outdoor Air
Temp Sensor
Pumpdown
Service Service Pumpdown cycle for this circuit was terminated abnormally due
Terminated By Circuit Info Latch Local
Pumpdown to excessive time (RTAF max Service Pumpdown = 4 min.).
Time
Restart Inhibit
When restart inhibit warning is enabled, the warning exists when unit
Invoked - xy
Cprsr Info Latch All has been inhibited from starting and is cleared when a start of a Remote
Restart Inhibit
compressor is possible (Start-to-Start Timer expires)
xy
A high level software watchdog has detected a condition in which there
Software Error was a continuous 1 minute period of compressor operation, with neither
1001: Call Trane Evaporator water flow nor a” contactor interrupt failure” diagnostic
All
Service Immediate Latch All active. The presence of this software error message suggests an Local
functions
SW Error 1001- internal software problem has been detected. The events that led up to
Call Trane this failure, if known, should be recorded and transmitted to Trane
Controls Engineering.
RTAF-SVX001A-EN 77
Diagnostics
Active
Modes
Reported if state chart misalignment in stopped or inactive state
occurred while a compressor was seen to be operating and this
Software Error
condition lasted for at least 1 minute (cmprsr operation due to Service
1002: Call Trane
All Pumpdown or with Contactor Interrupt Failure diagnostic is excluded).
Service Immediate Latch All Local
functions The presence of this software error message suggests an internal
SW Error 1002-
software problem has been detected. The events that led up to this
Call Trane
failure, if known, should be recorded and transmitted to Trane Controls
Engineering.
Reported if state chart misalignment occurred inferred from the
Software Error
Capacity Control, Circuit, or Compressor State Machines remaining in
1003: Call Trane
All the Stopping state for more than 3 minutes. The presence of this
Service Immediate Latch All Local
functions software error message suggests an internal software problem has
SW Error 1003-
been detected. The events that led up to this failure, if known, should
Call Trane
be recorded and transmitted to Trane Controls Engineering.
Starts/Hours
Modified The current value for the cumulative starts and or hours for the given
Cprsr Info NonLatch All Remote
Starts/Hours compressor have been modified by a write override from TU.
Modified
Suction
Refrigerant
Pressure Sensor
- xy Cprsr Immediate Latch All Bad Sensor or LLID Remote
Suction
Pressure Sensor
- xy
All Cprsr
Unexpected The Starter module status reported back that it is stopped when the MP
Running
Starter thinks it should be running and no Starter diagnostic exist. This
modes,
Shutdown - xy diagnostic will be logged in the active buffer and then automatically
Cprsr Normal NonLatch Starting, Local
Unexpected cleared. This diagnostic could be caused by intermittent
Running and
Starter Shtdn - communication problems from the Starter to the MP, or due to mis-
Preparing to
xy binding
Shutdown
Very Low
Evaporator Rfgt The respective circuit’s evaporator pressure dropped below 80% of the
Pressure - xy current Low Evap Refrig Press Cutout setting (see above) or 8 psia,
Very Low Evap whichever is less, regardless of the running state of the circuit’s
Chiller Immediate Latch All Local
Rfgt Pressure - compressor. Note: Unlike previous products, even if the circuit
xy associated with the suction pressure sensor is locked out, it will not
Very Low Evap defeat the protection afforded by this diagnostic.
Rfgt Press xy
Water System
Differential
Water System
Diff Pressure
78 RTAF-SVX001A-EN
Diagnostics
Communication Diagnostics
Notes: one functional output associated with it. A comm loss
• 1The following communication loss diagnostics will with such a multiple function board, will generate
not occur unless that input or output is required to be multiple diagnostics. Refer to the Chiller's wiring
present by the particular configuration and installed diagrams to relate the occurrence of multiple
options for the chiller. communication diagnostics back to the physical LLID
boards that they have been assigned to (bound).
• 2Communication diagnostics (with the exception of
“Excessive Loss of Comm” are named by the • Communication loss diagnostics shall be timed based
Functional Name of the input or output that is no on action (target status) and not annunciation on the
longer being heard from by the Main Processor. Many operator display.
LLIDs, such as the Quad Relay LLID, have more than
Table 28. Communications diagnostics
Active
Modes
Affects [Inactive Reset
Diagnostic Name Target Severity Persistence Modes] Criteria Level
Comm Loss: %RLA
Continual loss of communication between the MP and the
Indication Output(Vdc) None Info Latch All Remote
Functional ID has occurred for a 15-30 second period.
Comm: RLA Output
Comm Loss: Liquid Line
Pressure Continual loss of communication between the MP and the
Comm: Liquid Line Functional ID has occurred for a 30 second period.
Pressure
Comm Loss: Oil
Temperature - xy Cprsr Normal Latch All Remote
Functional ID has occurred for a 30 second period.
Comm: Oil Temp - xy
Comm Loss: AFD Fault
Input xA Cprsr Normal Latch All Remote
Comm: AFD Fault xA
Comm Loss: AFD Run
Command - xA Continual loss of communication between the MP and the
Cprsr Normal Latch All Remote
Comm: AFD Run Functional ID has occurred for a 30 second period.
Command - xA
Comm Loss: Auxiliary
Setpoint Command Continual loss of communication between the MP and the
Chiller Info Latch All Remote
Comm: Auxiliary Setpt Functional ID has occurred for a 15-30 second period.
Cmd
Comm Loss: Chiller
Bypass Valve Output Continual loss of communication between the MP and the
Chiller Normal Latch All Remote
Comm: Chiller Bypass Functional ID has occurred for a 30 second period.
Valve
Comm Loss: Compressor
Discharge Rfgt
Temperature - xy
Comm Loss: Cprsr Disch Cprsr Normal Latch All Remote
Rfgt Temp - xy
Comm: Cprsr Disch Temp
xy
Comm Loss: Condenser
Fan Enable Circuit Normal Latch All Remote
Comm: Cond Fan Enable
Fan Enable, Shared Continual loss of communication between the MP and the
Circuit 1&2 Functional ID has occurred for a 30 second period. This is an
Comm Loss: Cond Fan Circuit Info Latch All info warning, as it is conceivable that the circuit may run Remote
Enbl Shared Ckt1&2 without the center shared fan deck working if there are many
Comm: Cond Fan Enbl Ckt other coils/fans on the circuits.
1&2
RTAF-SVX001A-EN 79
Diagnostics
Table 28. Communications diagnostics (continued)
Active
Modes
Refrigerant Pressure
Comm Loss: Condenser Continual loss of communication between the MP and the
Circuit Immediate Latch All Remote
Rfgt Pressure Functional ID has occurred for a 30 second period.
Comm: Cond Rfgt
Pressure
Refrigerant Tank Valve
Comm Loss: Cond Rfgt Continual loss of communication between the MP and the
Tank Valve Functional ID has occurred for a 30 second period.
Comm: Cond Rfgt Tank
Vlv
Continual loss of communication between the MP and the EXV
Step Status has occurred for a 30 second period, OR EXV
Comm Loss: Electronic
Steps Maximum Position has not been received. If EXV Steps
Expansion Valve Circuit Normal Latch All Remote
Maximum Position has not been received, MP will periodically
Comm: EXV
request EXV Steps Maximum Position, since it is only
transmitted upon request.
Comm Loss: Emergency
Stop Feedback Input Chiller Normal Latch All Remote
Comm: Emergency Stop
Comm Loss: Energy Meter
Pulse Input Continual loss of communication between the MP and the
None Info Latch All Remote
Comm: Energy Pulse Functional ID has occurred for a 30 second period.
Input
Comm Loss: Evaporator
Entering Water Pressure
Comm Loss: Evap Continual loss of communication between the MP and the
Entering Water Pressure Functional ID has occurred for a 30 second period.
Comm: Evap Ent Water
Press
Entering Water Continual loss of communication between the MP and the
Temperature Functional ID has occurred for a 30 second period. Note:
Comm Loss: Evap Chiller Normal Latch All Entering Water Temp Sensor is used in EXV pressure control Remote
Entering Water Temp as well as ice making & CHW reset, so it must cause a unit
Comm: Evap Ent Water shutdown even if Ice or CHW reset is not installed.
Temp
Isolation Valve Close
Switch
Comm Loss: Evap Iso Circuit Immediate Latch All Remote
Valve Close Switch
Comm: Evap Iso Vlv Close
Sw
Isolation Valve Open
Switch
Comm Loss: Evap Iso Circuit Immediate Latch All Remote
Valve Open Switch
Comm: Evap Iso Vlv Open
Sw
Isolation Valve Relay
Comm Loss: Evap Continual loss of communication between the MP and the
Circuit Immediate Latch All Remote
Isolation Valve Relay Functional ID has occurred for a 30 second period.
Comm: Evap Iso Valve
Relay
Leaving Water Pressure
Comm Loss: Evap Leaving Continual loss of communication between the MP and the
Water Pressure Functional ID has occurred for a 30 second period.
Comm: Evap Leav Water
Press
80 RTAF-SVX001A-EN
Diagnostics
Active
Modes
Leaving Water
Temperature
Comm Loss: Evap Leaving Chiller Normal Latch All Remote
Water Temp
Comm: Evap Leav Water
Temp
Pump 1 Fault Input Continual loss of communication between the MP and the
Comm: Evap Pump Fault Functional ID has occurred for a 30 second period.
Input
Pump 2 Fault Input Continual loss of communication between the MP and the
Comm: Evap Pump Fault Functional ID has occurred for a 30 second period.
Input
Pump Inverter 1 Run
Command
Comm Loss: Evap Pump Chiller Normal Latch All Remote
Inv 1 Run Command
Comm: Evap Water Pump
Relay
Functional ID has occurred for a 30 second period. Invalidate
Refrigerant Pool
evaporator pool temperature sensor measurement if this
Temperature Circuit Special
diagnostic is active. If evaporator isolation valves are
Comm Loss: Evap Rfgt and Action Latch All Remote
installed, revert to Evaporator Shell Refrigerant Saturated
Pool Temp Chiller and Info
Temperature for freeze protection functions. If evaporator
Comm: Evap Rfgt Pool
isolation valves are not installed, revert to Evaporator
Temp
Saturated Temperature for freeze protection functions.
Shell Refrigerant Pressure
Comm Loss: Evap Shell Continual loss of communication between the MP and the
Rfgt Pressure Functional ID has occurred for a 30 second period.
Comm: Evap Shell Rfgt
Press
Water Flow Switch Continual loss of communication between the MP and the
Chiller Immediate Latch All Remote
Comm: Evap Water Flow Functional ID has occurred for a 30 second period.
Sw
Water Pump 1 Relay Continual loss of communication between the MP and the
Comm: Evap Wtr Pump Functional ID has occurred for a 30 second period.
Relay x
Water Pump 2 Relay Continual loss of communication between the MP and the
Comm: Evap Water Pump Functional ID has occurred for a 30 second period.
Relay
Water Pump Inverter 1
Fault Input
Comm Loss: Evap Pump Chiller Normal Latch All Remote
Inv 1 Fault Input
Comm: Evap Pump Fault
Input
Water Pump Inverter
Frequency Input
Comm Loss: Evap Water Chiller Normal Latch All Remote
Pump Inv Freq Input
Comm: Evap Watr Pmp
Inv Freq
RTAF-SVX001A-EN 81
Diagnostics
Active
Modes
Water Pump Inverter
Speed
Comm Loss: Evap Water Chiller Normal Latch All Remote
Pump Inverter Speed
Comm: Evap Water Pump
Speed
Comm Loss: Ext Noise
Reduction Request Continual loss of communication between the MP and the
None Info Latch All Remote
Comm: Ext Noise Reduct Functional ID has occurred for a 30 second period.
Input
Comm Loss: External
Auto/Stop Continual loss of communication between the MP and the
Comm: External Auto/ Functional ID has occurred for a 30 second period.
Stop
Comm Loss: External
Chilled Water Setpoint External Continual loss of communication between the MP and the
Comm Loss: Ext Chilled Chilled Special Functional ID has occurred for a 30 second period. Chiller shall
Latch All Remote
Water Setpoint Water Action discontinue use of the External Chilled Water Setpoint source
Comm: Ext Chilled Wtr Setpoint and revert to the next higher priority for setpoint arbitration
Setpt
Comm Loss: External Ckt
Lockout
Special Functional ID has occurred for a 30 second period. MP will
Comm Loss: External Ckt Circuit Latch All Remote
Action nonvolatile hold the lockout state (enabled or disabled) that
Lockout
was in effect at the time of comm loss.
Comm: Ext Ckt Lockout
Comm Loss: External
Demand Limit Setpoint External
Functional ID has occurred for a 30 second period. Chiller shall
Comm Loss: Ext Demand Demand Special
Latch All discontinue use of the External Demand limit setpoint and Remote
Limit Setpoint Limit Action
revert to the next higher priority for Demand Limit setpoint
Comm: Ext Demand Lim setpoint
arbitration.
Setpt
Comm Loss: External Ice Continual loss of communication between the MP and the
Ice
Building Command Special Functional ID has occurred for a 30 second period. Chiller shall
Making Latch All Remote
Comm: Ext Ice Building Action revert to normal (non-ice building) mode regardless of last
Mode
Cmd state.
Comm Loss: Fan Board 1
Relay X Continual loss of communication between the MP and the
Comm: Fan Board 1 Relay Functional ID has occurred for a 30 second period.
X
Comm Loss: Fan Board 2
Relay X Continual loss of communication between the MP and the
Comm: Fan Board 2 Relay Functional ID has occurred for a 30 second period.
X
Comm Loss: Fan Inverter
Speed Command Continual loss of communication between the MP and the
Comm: Fan Inverter Functional ID has occurred for a 15-30 second period.
Speed Cmd
Comm Loss: Fan Inverter
Speed Command, Shared Continual loss of communication between the MP and the
Circuit 1 & 2 Functional ID has occurred for a 15-30 second period. This is
Comm Loss: Fan Inv Spd Circuit Info Latch All an info warning, as it is conceivable that the circuit may run Remote
Cmd, Shrd Ckt 1&2 without the center shared fan deck working if there are many
Comm: Fan Inv Spd Cmd other coils/fans on the circuits.
Ckt 1&2
Comm Loss: Heat
Recovery Entering Water
Temperature Sensor
Comm Loss: HR Entering Chiller Info Latch All Remote
Water Temp Sensor
Comm: HR Entering
Water Temp
82 RTAF-SVX001A-EN
Diagnostics
Active
Modes
Comm Loss: Heat
Recovery Leaving Water
Temperature Sensor
Comm Loss: HR Leaving Chiller Info Latch All Remote
Water Temp Sensor
Comm: HR Leaving Water
Temp
Comm Loss: High
Pressure Cutout Switch -
xy
Comm Loss: High Cprsr Normal Latch All Remote
Pressure Cutout Sw - xy
Comm: High Pres Cutout
Sw - xy
Comm Loss: Liquid Line
Functional ID has occurred for a 30 second period Note: The
Temperature Circuit Normal Latch All Remote
Subcooled Liquid Line Temperature Sensors are used for
Comm: Liquid Line Temp
determination of charge and accurate tonnage predictions
Comm Loss: Local BAS Functional ID has occurred for a 30 second period.
Interface Use last valid BAS setpoints.
Chiller Info NonLatch All Remote
Comm: Local BAS Diagnostic is cleared when successful communication is
Interface established with the LonTalk LLID (LCIC) or BacNet LLID
(BCIC).
Comm Loss: Motor RLA
Input - xA Continual loss of communication between the MP and the
Comm: Motor RLA Input - Functional ID has occurred for a 30 second period.
xA
Comm Loss: Motor
Winding Thermostat
Compressor 1A
Comm Loss: Motor Circuit Normal Latch All Remote
Winding Tstat Cprsr 1A
Comm: Motor Tstat Cprsr
1A
Comm Loss: Motor
Winding Thermostat
Compressor 2A
Comm Loss: Motor Circuit Normal Latch All Remote
Winding Tstat Cprsr 2A
Comm: Motor Tstat Cprsr
2A
Comm Loss: Oil Loss Level
Sensor Input
Comm Loss: Oil Loss Level Circuit Normal Latch All Remote
Sensor Input
Comm: Oil Level Sensor
Comm Loss: Oil Pressure -
xy Cprsr Immediate Latch All Remote
Comm: Oil Pressure - xy
Comm Loss: Oil Return
Line Solenoid Valve -xy
Comm Loss: Oil Return Cprsr Normal Latch All Remote
Solenoid Valve - xy
Comm: Oil Ret Sol Vlv xy
Comm Loss: Outdoor Air
Temperature Chiller Normal Latch All Remote
Comm: Outdoor Air Temp
Comm Loss:
Programmable Relay
Board 1 None Info Latch All Remote
Comm: Program Relay
Board 1
RTAF-SVX001A-EN 83
Diagnostics
Active
Modes
Comm Loss:
Programmable Relay
Board 2 None Info Latch All Remote
Comm: Program Relay
Board 2
Comm Loss: Slide Valve
Load - xy Continual loss of communication between the MP and the
Comm: Slide Valve Load - Functional ID has occurred for a 30 second period.
xy
Comm Loss: Slide Valve
Unload - xy Continual loss of communication between the MP and the
Comm: Slide Valve Functional ID has occurred for a 30 second period.
Unload - xy
Comm Loss: Speed
Command - xA Continual loss of communication between the MP and the
Comm: Speed Command Functional ID has occurred for a 15-30 second period.
-xA
Comm Loss: Starter xy Cprsr Immediate Latch All Remote
Comm Loss: Step Load -
xy Cprsr Normal Latch All Remote
Comm: Step Load - xy
Comm Loss: Suction
Refrigerant Pressure - xy
All [Ckt/
Comm Loss: Suction Rfgt Continual loss of communication between the MP and the
Cprsr Immediate Latch Cprsr lock Remote
Pressure - xy Functional ID has occurred for a 30 second period.
out]
Comm: Suction Rfgt Press
xy
Comm Loss: Water
System Differential
Pressure
Comm Loss: Water Chiller Info Latch All Remote
System Diff Pressure
Comm: Water Sys Diff
Press
84 RTAF-SVX001A-EN
Wiring
Table 29 provides a list of electrical schematics, field wiring diagrams and connection diagrams for RTAF units. Complete
wiring package is documented in RTAF-SVE001*-EN. A laminated wiring diagram booklet is also shipped with each chiller.
Table 29. RTAF unit wiring drawing numbers

Drawing Number Description
5722-6999 Schematic Diagram
5722-7580 Unit Component Location
5722-7552 Panel Component Location Diagram
2311-3537 Field Wiring Diagram
RTAF-SVX001A-EN 85
Log and Check Sheets
The operator log and check sheet are included for use as
appropriate, for installation completion verification before
Trane start-up is scheduled, and for reference during the
Trane start-up.
Where the log or check sheet also exists outside of this
publication as standalone literature, the literature order
number is also listed.
• Sintesis™ Model RTAF Installation Completion Check
Sheet and Request forTrane Service
(RTAF-ADF001*-EN)
• Operator Log
86 RTAF-SVX001A-EN
Sintesis™ RTAF
Installation Completion Check Sheet and Request for Trane Service
Important: A copy of this completed form must be submitted to theTrane service agency that will be responsible for the start-
up of the chiller. Start-up will NOT proceed unless applicable items listed in this form have been satisfactorily
completed. See unit IOM RTAF-SVX001*-EN for detailed installation instructions.
To: Trane Service Office:

S.O. Number: Serial Numbers:
Job/Project Name:
Address:
The following items are being installed and will be completed by:
Important: Start-up must be performed byTrane or an agent ofTrane specifically authorized to perform start-up ofTrane®
products. Contractor shall provideTrane (or an agent ofTrane specifically authorized to perform start-up) with
notice of the scheduled start-up at least two weeks prior to the scheduled start-up.
Check boxes if the task is complete or if the answer is “yes.”

1. Chiller
 Installation meets foundation requirements.
 In place and piped.
 Isolation pads or elastomeric pads installed (optional).
2. Piping
 Water piping flushed before making final connections to the system
Chilled water piping connected to:
 Evaporator
 Air handling units
 Pumps
 Flow switch or flow proving device installed
 Strainer installed in entering evaporator water piping and cleaned
 Water supply connected to filling system
 Systems filled
 Pumps run, air bled from system
 Relief valve ventilation piping installed (if applicable)
 Flow balancing valves installed in leaving chilled water
 Gauges, thermometers and air vents installed on both sides of evaporator
3. Wiring
 Wire size per submittal and NEC
 Full power available, and within utilization range
 External interlocks (flow switch, pumps auxiliary, etc.)
 Chilled water pump (connected and tested)
 115 Vac power available for service tools (recommended)
 All controls installed and connected
4. Testing
 Dry nitrogen available for pressure testing
 Trace gas amounts of R-134a or R-513A available for leak testing (if required)
5.  Refrigerant on job site (if nitrogen charge option, model number digit 16 = 3 or 4, is chosen)
6.  Systems can be operated under load conditions
7. Heaters
 If unit was factory charged (model number digit 16 = 1 or 2), energize heaters for 24 hours prior to start up.
Important: It is required that chiller heaters are energized for a minimum of 24 hours prior to start up.
Therefore, chiller should have power for this amount of time beforeTrane Service arrives to do start-up.
 If unit has nitrogen charge (model number digit 16 = 3 or 4), contactTrane Service for unit charging prior to start-up.
RTAF-ADF001A-EN 1
8. Owner awareness
 If it is required by local code, is a self-contained breathing apparatus available?
 Has the owner been fully instructed on the proper use of refrigerant?
 Does the owner have a copy of the MSDS for refrigerant?
 Was the owner given a copy of the Refrigerant Handling Guidelines?
Note: Additional time required to properly complete the start-up and commissioning, due to any incompleteness of the
installation, will be invoiced at prevailing rates.
This is to certify that theTrane® equipment has been properly and completely installed, and that the applicable items listed above
have been satisfactorily completed.
Checklist completed by: ______________________________________________________________________________________________
Signed: _____________________________________________________________________ Date: _______________________________
In accordance with your quotation and our purchase order number __________________, we will therefore require the presence
ofTrane service on this site, for the purpose of start-up and commissioning, by __________________ (date).
Note: Minimum two-week advance notification is required to allow scheduling of the chiller start-up.
Additional comments/instructions: ____________________________________________________________________________________
_____________________________________________________________________________________________________________________
_____________________________________________________________________________________________________________________
_____________________________________________________________________________________________________________________
_____________________________________________________________________________________________________________________
Note: A copy of this completed from must be submitted to theTrane Service Office that will be responsible for start-up of chiller.
All trademarks referenced in this document are the trademarks of their respective owners.
Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the
leader in creating and sustaining safe, comfortable and energy efficient environments, Trane offers a broad
portfolio of advanced controls and HVAC systems, comprehensive building services, and parts. For more
information, visit www.Trane.com.
Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
© 2015Trane All rights reserved

RTAF-ADF001A-EN 05 Jun 2015 We are committed to using environmentally
(New) conscious print practices that reduce waste.
Operator Log
Sintesis™ RTAF Chiller with UC800 Controller - Tracer AdaptiView Reports - Log Sheet
Unit Circuit 1 Circuit 2
Start 15 min 30 min 1 hr Start 15 min 30 min 1 hr Start 15 min 30 min 1 hr
EVAPORATOR
Active Chilled Water Setpoint
Entering Water Temperature
Leaving Water Temperature
Saturated Refrigerant Temperature (°F)
Refrigerant Pressure (psia)
Approach Temperature (°F)
Water Flow Status
EXV % Open
CONDENSER
Outdoor Air Temperature
Air Flow %
Saturated Refrigerant Temperature (°F)
Refrigerant Pressure (psia)
COMPRESSORS
Compressor A
Running Status
Starts
Running Time (Hr:Min)
Oil Pressure (psia)
Motor A
Active Demand Limit Setpoint
Average Motor Current (%)
Compressor B (if present)
Running Status
Starts
Running Time (Hr:Min)
Oil Pressure (psia)
Motor B (if present)
Active Demand Limit Setpoint
Average Motor Current (%)
COMMENTS:
Date:
Technician:
Owner:
RTAF Operator Log Revised: 13 May 2015

Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the leader in
creating and sustaining safe, comfortable and energy efficient environments, Trane offers a broad portfolio of advanced
controls and HVAC systems, comprehensive building services, and parts. For more information, visit www.Trane.com.
Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
© 2015Trane All rights reserved

RTAF-SVX001A-EN 11 June 2015 We are committed to using environmentally
(NEW) conscious print practices that reduce waste.

Rtaf Svx001a en

Uploaded by

Copyright:

Available Formats

Rtaf Svx001a en

Uploaded by

Document Information

Original Title

Copyright

Available Formats

Share this document

Share or Embed Document

Sharing Options

Did you find this document useful?

Is this content inappropriate?

Copyright:

Available Formats

Rtaf Svx001a en

Uploaded by

Copyright:

Available Formats

What safety precautions should be taken when installing or servicing the equipment?

What safety precautions should be taken when installing or servicing the equipment?

What are the different types of advisories defined in the document?

What are the different types of advisories defined in the document?

Installation, Operation,

Sintesis™ Air-Cooled Chillers

June 2015 RTAF-SVX001A-EN

Indicates a potentially hazardous

© 2015Trane All rights reserved RTAF-SVX001A-EN

Factory Warranty Information

Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . 11 Control Power Supply . . . . . . . . . . . . . . . .25

Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Programmable Relays . . . . . . . . . . . . . . . . . .27

Sound Considerations . . . . . . . . . . . . . . . 14 Chilled Water Reset (CWR) . . . . . . . . . . . .29

Foundation . . . . . . . . . . . . . . . . . . . . . . . . 14 AFD Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Lifting and Moving Instructions . . . . . . . . 14 Communication Interfaces . . . . . . . . . . . . . .32

Center of Gravity . . . . . . . . . . . . . . . . . . . . . 15 LonTalk Interface (LCI-C) . . . . . . . . . . . . . .32

Isolation and Sound Emission . . . . . . . . . . 16 BACnet Interface (BCI-C) . . . . . . . . . . . . . .32

Chilled Water Piping Recommendations . 18 Operating Principles . . . . . . . . . . . . . . . . . . . . .33

Refrigerant Cycle . . . . . . . . . . . . . . . . . . . . . 33 Running (Lag Compressor/Circuit Start

Wiring and Port Descriptions . . . . . . . . . 35 Ice Making (Auto to Ice Making to

Figure 1. Typical unit nameplate

Accessories and Loose Parts

Table 2. Installation requirements

Shipping Weight Operating Weight

Figure 4. Label - do not lift

Table 5. Centers of gravity

Isolation and Sound Emission

For maximum isolation effect, isolate water lines and 0.56 in

Unit Isolation and Leveling

Elastomeric Isolators Figure 8. Mounting point locations(a)

1. Secure the isolators to the mounting surface using the

Table 7. Point weights

Table 8. Isolator selections

Chilled Water Piping Evaporator Piping

NOTICE: To prevent damage to chilled-water components, do not

Figure 9. Evaporator water piping

1 Bypass Valve Pi Pressure Gauge

Entering Chilled Water Piping Waterbox Drains and Vents

The flow switch is factory-installed and programmed

If using auxiliary flow sensing, both yellow LEDs come on

Indexing Flow Switch

Figure 11. Evaporator water pressure drop — 2-pass without turbulators

Figure 12. Evaporator water pressure drop — 2-pass with turbulators

Water Flow (GPM)

Table 9. RTAF freeze avoidance methods

Low Evaporator Refrigerant Cutout and Glycol Requirements

Ethylene Glycol Propylene Glycol

Table 11. Pump Relay Operations

Chiller Mode Relay Operation

When going from Stop to Auto, the EWP relay is energized

External Demand Limit Setpoint (EDLS)

Demand Limit Setting can also be set via theTracer

In addition to Return and Outdoor Reset, the MP provides

AFD Drive Installation Table 14. Non-compressor specific parameter settings

The AFD drive is manufactured with a jumper installed ID Description Setting

NOTICE: 1-78 Compressor Start Max Speed [Hz] 30Hz

ID Description Setting 22-76 Interval Between Starts 60s

0-03 Region Settings [1] North American

Table 15. Compressor-specific parameter settings 115 to 215 tons — 60Hz(a)