RT Svx057e en - 09112021
RT Svx057e en - 09112021
RT Svx057e en - 09112021
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.
CAUTION
Indicates a potentially hazardous situation
which, if not avoided, could result in minor or
WARNING
moderate injury. It could also be used to alert Personal Protective Equipment (PPE)
against unsafe practices.
Required!
Indicates a situation that could result in
NOTICE Failure to wear proper PPE for the job being
equipment or property-damage only
accidents. undertaken could result in death or serious injury.
Technicians, in order to protect themselves from
potential electrical, mechanical, and chemical
Important Environmental Concerns hazards, MUST follow precautions in this manual
Scientific research has shown that certain man-made and on the tags, stickers, and labels, as well as the
chemicals can affect the earth’s naturally occurring instructions below:
stratospheric ozone layer when released to the
atmosphere. In particular, several of the identified • Before installing/servicing this unit,
chemicals that may affect the ozone layer are technicians MUST put on all PPE required for
refrigerants that contain Chlorine, Fluorine and Carbon the work being undertaken (Examples; cut
(CFCs) and those containing Hydrogen, Chlorine, resistant gloves/sleeves, butyl gloves, safety
Fluorine and Carbon (HCFCs). Not all refrigerants glasses, hard hat/bump cap, fall protection,
containing these compounds have the same potential electrical PPE and arc flash clothing).
impact to the environment. Trane advocates the ALWAYS refer to appropriate Safety Data
responsible handling of all refrigerants-including Sheets (SDS) and OSHA guidelines for
industry replacements for CFCs and HCFCs such as proper PPE.
saturated or unsaturated HFCs and HCFCs. • When working with or around hazardous
chemicals, ALWAYS refer to the appropriate
Important Responsible Refrigerant SDS and OSHA/GHS (Global Harmonized
Practices System of Classification and Labelling of
Chemicals) guidelines for information on
Trane believes that responsible refrigerant practices allowable personal exposure levels, proper
are important to the environment, our customers, and respiratory protection and handling
the air conditioning industry. All technicians who instructions.
handle refrigerants must be certified according to local
rules. For the USA, the Federal Clean Air Act (Section • If there is a risk of energized electrical
608) sets forth the requirements for handling, contact, arc, or flash, technicians MUST put
reclaiming, recovering and recycling of certain on all PPE in accordance with OSHA, NFPA
refrigerants and the equipment that is used in these 70E, or other country-specific requirements
service procedures. In addition, some states or for arc flash protection, PRIOR to servicing
municipalities may have additional requirements that the unit. NEVER PERFORM ANY SWITCHING,
must also be adhered to for responsible management DISCONNECTING, OR VOLTAGE TESTING
of refrigerants. Know the applicable laws and follow WITHOUT PROPER ELECTRICAL PPE AND
them. ARC FLASH CLOTHING. ENSURE
ELECTRICAL METERS AND EQUIPMENT ARE
PROPERLY RATED FOR INTENDED
VOLTAGE.
©2021 RT-SVX057E-EN
Introduction
RT-SVX057E-EN 3
Table of Contents
Model Number Description . . . . . . . . . . . . . . . . . 5 Unit Disconnect (FIYUDC). . . . . . . . . . . . . 21
4 RT-SVX057E-EN
Model Number Description
Digit 1 — Unit Type Digit 10 — Heating Capacity Digit 15 — Supply Fan/Drive Type/
Motor
E = Packaged Cooling, Electric Heat 0 = No Heat 0 = Standard Motor
A = 5 kW Electric Heat 1 = Oversized Motor
Digit 2 — Efficiency B = 7.5 kW Electric Heat
C = 10 kW Electric Heat Digit 16 — Access
B = ASHRAE 90.1 - 2016 D = 14.4 kW Electric Heat
E = 20 kW Electric Heat Not Used
F = 25 kW Electric Heat
Digit 3 — Airflow Configuration
Digit 17 — Condenser Coil Protection
Digit 11— Minor Design Sequence
C = Convertible
0 = Standard Coil
A = Rev A 4 = CompleteCoat™ Condenser Coil
Digit 4, 5, 6 — Nominal Gross Cooling
Capacity (MBh) Digit 12,13 — Service Sequence Digit 18 — Through The Base
036 = 3 Tons Provisions
048 = 4 Tons 00 = None 0 = No Through The Base Provisions
060 = 5 Tons A = Through The Base Electric
RT-SVX057E-EN 5
General Information
WARNING I m p o r t a n t : Do not proceed with installation of a
damaged unit without sales
Fiberglass Wool! representative’s approval.
Exposure to glass wool fibers without all
• Visually inspect the complete exterior for signs of
necessary PPE equipment could result in cancer,
shipping damages to unit or packing material.
respiratory, skin or eye irritation, which could
result in death or serious injury. Disturbing the • Verify that the nameplate data matches the sales
insulation in this product during installation, order and bill of lading.
maintenance or repair will expose you to airborne • Verify that the unit is properly equipped and there
particles of glass wool fibers and ceramic fibers are no material shortages.
known to the state of California to cause cancer
• Verify that the power supply complies with the unit
through inhalation.
nameplate specifications.
You MUST wear all necessary Personal Protective
Equipment (PPE) including gloves, eye protection, Inspection for Concealed Damage
a NIOSH approved dust/mist respirator, long
sleeves and pants when working with products Visually inspect the components for concealed damage
containing fiberglass wool. as soon as possible after delivery and before it is
stored.
Precautionary Measures: If concealed damage is discovered:
• Avoid breathing fiberglass dust. • Notify the carrier’s terminal of the damage
• Use a NIOSH approved dust/mist respirator. immediately by phone and by mail.
• Avoid contact with the skin or eyes. Wear • Concealed damage must be reported within 15
long-sleeved, loose-fitting clothing, gloves, days.
and eye protection. • Request an immediate, joint inspection of the
• Wash clothes separately from other clothing; damage with the carrier and consignee.
rinse washer thoroughly. • Stop unpacking the unit.
• Operations such as sawing, blowing, tear- • Do not remove damaged material from receiving
out, and spraying may generate fiber location.
concentrations requiring additional
respiratory protection. Use the appropriate • Take photos of the damage, if possible.
NIOSH approved respirator. • The owner must provide reasonable evidence that
the damage did not occur after delivery.
First Aid Measures:
• Eye Contact - Flush eyes with water to Unit Storage
remove dust. If symptoms persist, seek Take precautions to prevent condensate from forming
medical attention. inside the unit’s electrical compartments and motors if:
• Skin Contact - Wash affected areas gently • The unit is stored before it is installed; or,
with soap and warm water after handling.
• The unit is set on the roof curb, and temporary heat
is provided in the building. Isolate all side panel
service entrances and base pan openings (e.g.,
Unit Inspection conduit holes, S/A and R/ A openings, and flue
To protect against loss due to damage incurred in openings) from the ambient air until the unit is
transit, perform inspection immediately upon receipt of ready for start-up.
the unit. N o t e : Do not use the unit’s heater for temporary heat
without first completing the start-up.
Exterior Inspection The manufacturer will not assume any responsibility
If the job site inspection reveals damage or material for equipment damage resulting from condensate
shortages, file a claim with the carrier immediately. accumulation on the unit’s electrical and/or mechanical
Specify the type and extent of the damage on the bill of components.
lading before signing. Notify the appropriate sales
representative.
6 RT-SVX057E-EN
General Information
RT-SVX057E-EN 7
General Information
The supply air duct sensor (X1310004002) is set to open Occupancy Sensor
at 240°F. The control can be reset after the temperature A customer-supplied occupancy sensor can also be
has been lowered approximately 25°F below the cutout added to provide damper control based on occupied/
setpoint. unoccupied conditions.
Thermostat (TCONT802AS32DA) Low Leak Economizer Units
This thermostat is a multi-stage 3 heat/2 cool, To configure the JADE controller, set:
autochangeover digital display thermostat. It is a
programmable thermostat, and a 7-day programmable SYSTEM SETUP menu: OCC = INPUT
stat with night setback shall be available. In addition, it Attach the occupancy sensor to the OCC SENSOR wire
is wall mounted. and "R" terminal (at customer connections). The
occupancy sensor must utilize a normally open contact
Thermostat (TCONT402AN32DA) for proper operation.
This thermostat is a multi-stage 3 heat/2 cool, auto If an occupancy sensor is not used, another option to
changeover digital display thermostat. It is a controlling occupied and unoccupied status is to use
nonprogrammable, wall-mounted thermostat, and it the 'G' input (fan is running). Connect the G input to the
can be used for economizer operation. OCC SENSOR wire (at customer connections). The
CO2 Sensor controller will then operate in the occupied mode every
time the indoor fan is running.
This optional sensor can be added for Demand Control
Ventilation (DCV) functionality. On units with a low leak Initiation of Operating Modes - JADE
economizer, configure the JADE controller by setting
the following parameters:
Controller
The JADE controller is able to initiate the following
Setpoints Menu modes: Compressor, Economizer, Fans, Heating
DCV SET = desired CO2 ppm to start DCV System, and Cooling System.
VENTMAX = desired maximum position w/DCV and The Compressor mode is initiated by either the OAT
occupied status (2-speed applications require LO & HI going above the DRYBLB SET setting or by the
settings) thermostat initiating a call to cool when the damper is
VENTMIN = desired minimum position w/DCV and at 100% open.The Economizer mode is controlled by
occupied status (2-speed applications require LO & HI the MAT getting above the MAT SET setting while the
settings) OAT is below the DRYBLB SET setting.
ADVANCED SETUP Menu: While the fans are not controlled by the controller, the
Fan mode is dependent on what state the system is in
CO2 ZERO = set to detector's start level (OCC or Y1 states will cause the damper to go to a LOW
CO2 SPAN = detector's max level minus start level fan speed damper setting, while Y2 or W states will
cause the controller to open the damper to the HIGH
Attach the sensor to the CO2 and "R" terminals (at
fan speed damper setting). The Heating System mode
customer connections).
requires an input to the AUX2-1 terminal from the
N o t e : When using any 0-10 Vdc CO2 sensor with the thermostat, and the Cooling System mode requires an
JADE you will need to set CO2 ZERO to 400 ppm input to the Y2 IN and/or the Y1 IN terminals from the
and the CO2 SPAN to 1600 ppm in the thermostat.
ADVANCED SETUP menu.
8 RT-SVX057E-EN
Dimensional Data
Below figure illustrates the minimum operating and Providing less than the recommended clearances may
service clearances for either a single or multiple unit result in condenser coil starvation, “short-circuiting” of
installation. These clearances are the minimum exhaust and economizer airflows, or recirculation of
distances necessary to assure adequate serviceability, hot condenser air.
cataloged unit capacity, and peak operating efficiency.
Figure 1. Typical installation clearance for single and multiple unit applications
6’ 0”
7’ 0”
NOTES:
1. FOR HORIZONTAL DISCHARGE UNIT, NOTE 1
THIS MEASUREMENT IS REDUCED TO 1’ 6”
TO MINIMIZE DUCT EXTENSION. 3’ 0”
RT-SVX057E-EN 9
Dimensional Data
Figure 3. Cooling with optional electrical heat — front and side views (electric/electric)
42.004”
42.558”
20.735”
15.860”
7.860”
42.175”
43.675”
44.675” 76.814”
47.934”
NOTES:
1. THROUGH THE BASE ELECTRICAL IS NOT STANDARD ON ALL UNITS.
2. VERIFY WEIGHT, CONNECTION, AND ALL DIMENSIONS WITH INSTALLER DOCUMENTS BEFORE INSTALLATION.
10 RT-SVX057E-EN
Dimensional Data
Figure 4. Cooling with optional electrical heat and electric/electric units —bottom view
RETURN 25-5/8” 5-19/32”
7-1/32”
10-7/8”
17-3/4”
27-1/8”
19-3/8”
17-3/8”
15-3/8”
12-27/32”
6-25/32”
SUPPLY 20-11/16”
Figure 5. Cooling with optional electrical heat and electric/electric units — back view (horizontal configuration)
RETURN
SUPPLY
25.125”
11.478”
7.393”
5.592”
16.750” 10.500”
40.717”
RT-SVX057E-EN 11
Dimensional Data
Figure 6. Cooling with optional electrical heat and electric/electric units — roof curb
14.000”
14.430” 36.938”
32.188”
RETURN
3.548”
14.000”
1.500”
41.986”
70.871”
Figure 7. Cooling with optional electrical heat and electric/electric units — downflow unit clearance
CLEARANCE CLEARANCE
UNIT OUTLINE
CLEARANCE 48”
CLEARANCE 60”
12 RT-SVX057E-EN
Dimensional Data
Figure 8. Cooling with optional electrical heat and electric/electric units — barometric relief and economizer
ECONOMIZER
FAN
BAROMETRIC RELIEF
42”
BAROMETRIC
RELIEF
11-29/32”
7-31/32”
13-13/32” 7-27/32”
14-5/8”
Figure 9. Cooling with optional electrical heat and electric/electric units — manual damper
MANUAL DAMPER HOOD FAN
9.708”
7.223” 24.259”
NOTE:
VERIFY WEIGHT, CONNECTION, AND ALL DIMENSIONS WITH INSTALLER DOCUMENTS BEFORE INSTALLATION.
RT-SVX057E-EN 13
Weights
Table 1. Maximum unit and corner weights (lb) and center of gravity dimensions (in.) cooling with optional electric
heat (Electric/Electric) units only
Unit Model Weights (lb)(a) , (b) Corner Weights(c) Center of Gravity (in.)
Tons
No. Shipping Net A B C D Length Width
3 EBC036* 523 473 87 98 153 135 41 29
14 RT-SVX057E-EN
Weights
CENTER OF GRAVITY
WIDTH
CENTER OF GRAVITY
LENGTH
RT-SVX057E-EN 15
Installation
Unit Foundation operating sounds from transmitting through the
ductwork.
WARNING All outdoor ductwork between the unit and the
Risk of Roof Collapsing! structure should be weather proofed after installation is
Failure to ensure proper structural roof support completed.
could cause the roof to collapse, which could N o t e : For sound consideration, cut only the holes in the
result in death or serious injury and property roof deck for the ductwork penetrations. Do not
damage. cut out the entire roof deck within the curb
Confirm with a structural engineer that the roof perimeter.
structure is strong enough to support the
If a Curb Accessory Kit is not used:
combined weight of the roofcurb, the unit, and any
accessories. 1. The ductwork can be attached directly to the
factory-provided flanges around the unit’s supply
and return air openings. Be sure to use flexible duct
NOTICE connections at the unit.
Water Damage! 2. For “built-up” curbs supplied by others, gaskets
Failure to follow instructions below could result in must be installed around the curb perimeter flange
equipment and property damage. and the supply and return air opening flanges.
Non-factory penetrations through the base of this
unit are not allowed. Any penetration in the base
of the unit may affect the water tight integrity of
General Unit Requirements
the unit and lead to water leaks into the
conditioned space. WARNING
Proper Field Wiring and Grounding
Notes:
Required!
• For units with optional Condensate Failure to follow code could result in death or
Overflow Switch (COF) accessory kit, the serious injury.
switch will not work properly if unit is not All field wiring MUST be performed by qualified
level or slightly sloped toward switch. personnel. Improperly installed and grounded
• To assure proper condensate flow during field wiring poses FIRE and ELECTROCUTION
operation the unit and the curb must be hazards. To avoid these hazards, you MUST follow
level. requirements for field wiring installation and
If the unit is installed at ground level, elevate it above grounding as described in NEC and your local/
the snow line. Provide concrete footings at each state/national electrical codes.
support location with a “full perimeter” support
The checklist listed below is a summary of the steps
structure or a slab foundation for support. Refer to
required to successfully install a commercial unit. This
Table 1, p. 14 for the unit’s operating and point loading
checklist is intended to acquaint the installing
weights when constructing a footing foundation.
personnel with what is required in the installation
If anchoring is required, anchor the unit to the slab process. It does not replace the detailed instructions
using hold down bolts or isolators. Isolators should be called out in the applicable sections of this manual.
installed to minimize the transmission of vibrations
☐ Check the unit for shipping damage and material
into the building.
shortage; file a freight claim and notify appropriate
For rooftop applications, if anchoring is required, sales representative.
anchor the unit to the roof with hold-down bolts or
☐ Verify correct model, options and voltage from
isolators.
nameplate.
Check with a roofing contractor for proper
☐ Verify that the installation location of the unit will
waterproofing procedures.
provide the required clearance for proper
operation.
Ductwork
☐ Assemble and install the roof curb (if applicable).
Elbows with turning vanes or splitters are Refer to the latest edition of the curb installers
recommended to minimize air noise due to turbulence guide that ships with each curb kit.
and to reduce static pressure.
☐ Fabricate and install ductwork; secure ductwork to
When attaching the ductwork to the unit, provide a curb.
watertight flexible connector at the unit to prevent
16 RT-SVX057E-EN
Installation
☐ Rigging the unit. N o t e : Use 1-inch PVC pipe to connect to the drain pan
☐ Set the unit onto the curb; check for levelness. outlet provided in the unit. This is a slip fit joint
(no threads). Do not use PVC glue to connect
☐ Ensure unit-to-curb seal is tight and without buckles condensate drain, thread sealing compound or
or cracks. Teflon tape may be used.
☐ Install and connect a condensate drain line to the A condensate trap must be installed at the unit due to
evaporator drain connection. the drain connection being on the “negative pressure”
side of the fan.
Factory Installed Economizer
A condensate drain line must be connected to the P-
• Ensure the economizer has been pulled out into the Trap. Pitch the drain lines at least 0.5-inch for every 10
operating position. Refer to the standard or low leak feet of horizontal run to assure proper condensate flow.
economizer Installation Instructions for proper Do not allow the horizontal run to sag causing a
position and setup. possible doubletrap condition which could result in
• Install all access panels. condensate backup due to “air lock”.
RT-SVX057E-EN 17
Installation
Main Unit Power Figure 12. Through the base electrical option
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or
serious 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 field wiring installation and
grounding as described in NEC and your local/
state/national electrical codes.
Standard Wiring
The electrical service must be protected from over
current and short circuit conditions in accordance with
NEC requirements.
Protection devices must be sized according to the
electrical data on the nameplate.
• If the unit is not equipped with an optional factory
installed nonfused disconnect switch, a field
supplied disconnect switch must be installed at or TBUE
near the unit in accordance with the National LOW VOLT.
TBUE
Electrical Code (NEC latest edition). HIGH VOLT.
18 RT-SVX057E-EN
Installation
controls and the unit’s termination point does not 3. Be sure to check all loads and conductors for
exceed three (3) ohms/conductor for the length of grounds, shorts, and mis-wiring.
the run. 4. Do not run the AC low voltage wiring in the same
N o t e : Resistance in excess of 3 ohms per conductor conduit with the high voltage power wiring.
could cause component failure due to 5. Route low voltage wiring as per Figure 13, p. 19.
insufficient AC voltage supply.
RT-SVX057E-EN 19
Installation
• VD = Line Voltage reading that deviates the farthest 3. Close the field supplied main power disconnect
from the average voltage. switch or circuit protector switch that provides the
Example: If the voltage readings of the supply power supply power to the unit.
measured 221, 230, and 227, the average volts would WARNING
be:
Live Electrical Components!
Failure to follow all electrical safety precautions
when exposed to live electrical components could
• VD (reading farthest from average) = 221 result in death or serious injury.
• The percentage of Imbalance equals: When it is necessary to work with live electrical
components, have a qualified licensed electrician
or other individual who has been properly trained
in handling live electrical components perform
these tasks.
The 2.2 percent imbalance in this example exceeds the
maximum allowable imbalance of 2.0 percent. This 4. Observe the ABC and CBA phase indicator lights on
much imbalance between phases can equal as much as the face of the sequencer. The ABC indicator light
a 20 percent current imbalance with a resulting will glow if the phase is ABC. If the CBA indicator
increase in motor winding temperatures that will light glows, open the disconnect switch or circuit
decrease motor life. protection switch and reverse any two power wires.
If the voltage imbalance is over 2 percent, notify the 5. Restore the main electrical power and recheck the
proper agencies to correct the voltage problem before phasing. If the phasing is correct, open the
operating this equipment. disconnect switch or circuit protection switch and
remove the phase sequence indicator.
Electrical Phasing (Three Phase Motors)
The compressor motor(s) and the supply fan motor are Compressor Crankcase Heaters
internally connected for the proper rotation when the
incoming power supply is phased as A, B, C. NOTICE
Proper electrical supply phasing can be quickly Compressor Failure!
determined and corrected before starting the unit by Failure to follow instruction below could result in
using an instrument such as an Associated Research compressor failure.
Model 45 Phase Sequence Indicator and following the Unit must be powered and crankcase heaters
steps below: energized at least 8 hours BEFORE compressors
are started.
WARNING Each compressor can be equipped with a crankcase
Hazardous Voltage! heater. The proper operation of the crankcase heater is
Failure to disconnect power before servicing could important to maintain an elevated compressor oil
result in death or serious injury. temperature during the “Off” cycle to reduce oil
Disconnect all electric power, including remote foaming during compressor starts. Oil foaming occurs
disconnects before servicing. Follow proper when refrigerant condenses in the compressor and
lockout/tagout procedures to ensure the power mixes with the oil. In lower ambient conditions,
can not be inadvertently energized. Verify that no refrigerant migration to the compressor could increase.
power is present with a voltmeter. When the compressor starts, the sudden reduction in
crankcase pressure causes the liquid refrigerant to boil
1. Turn the field supplied disconnect switch that rapidly causing the oil to foam. This condition could
provides power to the main power terminal block or damage compressor bearings due to reduced
to the “Line” side of the optional factory mounted lubrication and could cause compressor mechanical
disconnect switch to the “Off” position. failures.
2. Connect the phase sequence indicator leads to the Before starting the unit in the “Cooling” mode, set the
terminal block or to the “Line” side of the optional system switch to the “Off” position and turn the main
factory mounted disconnect switch as follows: power disconnect to the “On” position and allow the
• Black (phase A) to L1 crankcase heater to operate a minimum of 8 hours.
• Red (phase B) to L2 Before closing the main power disconnect switch,
insure that the “System”selection switch is in the “Off”
• Yellow (phase C) to L3
position and the “Fan” selection switch is in the “Auto”
position.
20 RT-SVX057E-EN
Installation
Close the main power disconnect switch and the unit WARNING
mounted disconnect switch, if applicable.
Proper Field Wiring and Grounding
Checklist Required!
Use the following checklist in conjunction with the Failure to follow code could result in death or
general checklist (“General Unit Requirements,” p. 16) serious injury.
to ensure that the unit is properly installed and ready All field wiring MUST be performed by qualified
for operation. personnel. Improperly installed and grounded
field wiring poses FIRE and ELECTROCUTION
WARNING hazards. To avoid these hazards, you MUST follow
requirements for field wiring installation and
Hazardous Voltage! grounding as described in NEC and your local/
Failure to disconnect power before servicing could state/national electrical codes.
result in death or serious injury.
Disconnect all electric power, including remote I m p o r t a n t : All phases of this installation must comply
disconnects before servicing. Follow proper with NATIONAL, STATE, and LOCAL
lockout/tagout procedures to ensure the power CODES. In addition to local codes, the
can not be inadvertently energized. Verify that no installation must comply with National
power is present with a voltmeter. Electric Code - ANSI/NFPA NO. 70 LATEST
REVISION.
☐ Check all electrical connections for tightness and 1. Field connections are made by first removing the
“point of termination” accuracy. compressor access panel on the front of the unit.
☐ Verify that the condenser airflow is unobstructed. Unscrew the assembly around the outside of the
disconnect switch. This assembly is located in the
☐ Verify that the condenser fan and indoor blower
condenser section of the unit.
turn freely without rubbing and are properly
tightened on the shafts. Both high and low voltage power can be routed
through the base or through the front corner post
☐ Check the supply fan belts for proper tension and
where the disconnect enclosure is mounted. The
the fan bearings for sufficient lubrication. If the
hole is sized for 1 1/2–in. conduit.
belts require adjustment, or if the bearings need
lubricating, refer to the maintenance section of this 2. If the conduit required for your application is larger
manual for instructions. than 1 1/2–in., remove the termination plate and
connect to the larger hole using field supplied
☐ Verify that a condensate trap is installed and the
reducing washers.
piping is properly sized and pitched.
3. Route the power wires and ground conductor
☐ Verify that the correct size and number of filters are
through conduit and into the bottom of the factory
in place.
installed disconnect switch. Connect the power
☐ Inspect the interior of the unit for tools and debris conductors to the lugs provided. Connect the
and install all panels in preparation for starting the ground wire to the unit ground lug.
unit.
N o t e : Wire size for the length of run should be
determined using the circuit ampacity found
Factory-Mounted Unit Options on the unit nameplate and the N.E.C.
4. Route low voltage (class II), control wiring through
Unit Disconnect (FIYUDC) hole in base of unit but not through high voltage
conduit (refer to Figure 12, p. 18 for high and low
WARNING volt. conduits location). Feed control wiring through
Hazardous Voltage w/Capacitors! bushing provided on side panel. Route wires
Failure to disconnect power and discharge through loose wire ties provided.
capacitors before servicing could result in death or 5. Tighten the wire ties. Secure the excess wire bundle
serious injury. under the wire ties in the outdoor section. Do not
Disconnect all electric power, including remote leave excess wire in the electrical enclosure. Use
disconnects and discharge all motor start/run the unit wiring diagram to make the low voltage
capacitors before servicing. Follow proper connections.
lockout/ tagout procedures to ensure the power
cannot be inadvertently energized. Verify with a
CAT III or IV voltmeter rated per NFPA 70E that all
capacitors have discharged.
RT-SVX057E-EN 21
Installation
22 RT-SVX057E-EN
Pre Start
Verifying Proper Air Flow (Units F a n T e s t a n d M i n i m u m V e n t i l a t i o n . Connect red
thermostat wire (R) to black thermostat wire (G).
with Belt Drive Indoor Fan) E c o n o m i z e r C o o l i n g . Connect a jumper wire across
Much of the systems performance and reliability is OAT on Economizer Control (ECA).
closely associated with, and dependent upon having
Connect red thermostat (R) wire to yellow thermostat
the proper airflow supplied both to the space that is
wire (Y1).
being conditioned and across the evaporator coil.
C o o l 1 . Connect red thermostat wire (R) to yellow
The indoor fan speed is changed by opening or closing
thermostat wire (Y1).
the adjustable motor sheave.
C o o l 2 . Connect red thermostat wire (R) to yellow
Before starting the SERVICE TEST, set the minimum
thermostat wire (Y2).
position setpoint for the economizer to 0% using the
setpoint potentiometer located on the Economizer H e a t 1 . Connect red thermostat wire (R) to brown
Control (ECA), if applicable. thermostat wire (W1).
H e a t 2 . Connect red thermostat wire (R) to brown
Electromechanical Controls – thermostat wire (W2).
Test Procedure
See unit schematic for correct wire numbers.
RT-SVX057E-EN 23
Start Up
Standard Economizer Start-Up Notes:
1. Set the minimum position setpoint for the • The checkout tests can all be performed at
economizer to the required percentage of minimum the time of installation or any time during
ventilation using the setpoint potentiometer located the operation of the system.
on the Economizer Control (ECA). • JADE will be in "set up" mode for the first 60
The economizer will drive to its minimum position minutes after powered. If OA sensor or Sylk
setpoint, exhaust fans (if applicable) may start at Bus device (sensor or actuator) is
random, and the supply fan will start when the disconnected during the set up mode, the
SERVICE TEST is initiated. JADE will not alarm that failure. The MA
sensor is a system "critical" sensor, if the
The Exhaust Fan will start anytime the economizer MA sensor is removed during the set up
damper position is equal to or greater than the mode, the JADE will alarm. After 60 minutes
exhaust fan setpoint. the JADE controller will change to operation
2. Verify that the dampers stroked to the minimum mode and all components removed or failed
position. will alarm in the operation mode.
3. Verify that the dampers stroked to the full open • Upon power up (or after a power outage or
position. brownout), the JADE controller module
4. To stop the SERVICE TEST, turn the main power begins a 5 minute power up delay before
disconnect switch to the “Off” position or proceed enabling mechanical cooling.
to the next component start-up procedure. Remove
electro mechanical test mode connections (if Compressor Start-Up
applicable).
1. Attach a set of service gauges onto the suction and
discharge gauge ports for each circuit. Refer to the
LLE Controls Test Procedure refrigerant circuit illustration in the Service Facts.
See unit schematic for correct wire numbers. Using the Service Test Guide, perform the proper
Use the CHECKOUT menu in the Installation test mode connections.
Instructions to test the damper operation and any Scroll Compressors
configured outputs. Only items that are configured are a. Once each compressor has started, verify that
shown in the Checkout menu. the rotation is correct. If wired correctly the
To Perform Checkout Tests: suction pressure should drop and the discharge
1. Scroll to the desired test in the checkout menu pressure should rise. If a scroll compressor is
using the and buttons. rotating backwards, it will not pump and a loud
rattling sound can be observed.
2. Press the button to select the item.
b. If the electrical phasing is correct, before
3. “RUN?” is displayed. condemning a compressor, interchange any two
4. Press to start the test. leads (at the compressor Terminal block) to
check the internal phasing. Refer to the
5. The unit pauses and then displays “IN PROGRESS”.
following illustration for the compressor
6. When the test is complete, “DONE” appears. terminal/phase identification. Do not allow the
7. When all parameters have been tested, press compressor to operate backwards for more than
(Menu Up) to end the test (e.g. turn off the relay). 5 seconds. Operation for a period of time longer
than this will result in compressor damage.
N o t e : Copeland SXA scroll compressors for
R410A units use Trane OIL00094.
Compressor types and appropriate oil
charge is listed in the following tables.
24 RT-SVX057E-EN
Start Up
Table 3. Compressor types 2. Verify that the heater stage is operating properly.
RT-SVX057E-EN 25
Maintenance
Make sure all personnel are standing clear of the unit deflection value determined in Step 1b.
before proceeding. The system components will start 3. Set the small O-ring at zero on the force scale of the
when the power is applied. gauge plunger.
4. Place the large end of the gauge at the center of the
Fan Belt Adjustment-Belt Drive belt span; then depress the gauge plunger until the
Units large O-ring is even with the top of the next belt or
even with a straightedge placed across the fan and
WARNING motor sheaves.
Rotating Components! 5. Remove the belt tension gauge. The small O-ring
Failure to disconnect power before servicing could now indicates a number other than zero on the
result in rotating components cutting and slashing plunger’s force scale. This number represents the
force (in pounds) required to give the needed
technician which could result in death or serious
deflection.
injury.
Disconnect all electric power, including remote 6. Compare the “force” scale reading (Step 5) with the
disconnects before servicing. Follow proper appropriate “force” value listed in the Belt tension
lockout/tagout procedures to ensure the power table. If the “force” reading is outside the range,
can not be inadvertently energized. readjust the belt tension.
N o t e : Actual belt deflection “force” must not
The fan belts must be inspected periodically to assure exceed the maximum “force” value shown in
proper unit operation. Replacement is necessary if the the Belt tension measurement and deflection
belts appear frayed or worn. Units with dual belts ranges table.
require a matched set of belts to ensure equal belt
7. Recheck the belt tension at least twice during the
length.
first 2 to 3 days of operation. Belt tension may
When removing or installing the new belts, do not decrease until the new belts are “run in”.
stretch them over the sheaves. Loosen the belts using
the belt tension adjustment bolts on the motor Figure 15. Belt tension gauge
mounting base.
Once the new belts are installed, using a Browning or
Gates tension gauge (or equivalent), adjust the belt
tension as follows:
1. To determine the appropriate belt deflection:
a. Measure the center-to-center shaft distance (in
inches) between the fan and motor sheaves.
b. Divide the distance measured in Step 1a by 64;
the resulting value represents the amount of
belt deflection that corresponds to the proper
belt tension.
2. Set the large O-ring on the belt tension gauge at the
26 RT-SVX057E-EN
Maintenance
Filters NOTICE
Inspect the return air filters. Clean or replace them if
Equipment Damage!
necessary. Refer to the unit Service Facts for filter Forcibly turning the motor shaft can damage
information. the gear train and motor beyond repair.
Never turn the motor shaft by hand or with a
Condensate Overflow Switch wrench.
During maintenance, the switch float (black ring) must ☐ Verify that all damper linkages move freely;
be checked to ensure free movement up and down. lubricate with white grease, if necessary.
☐ Check supply fan motor bearings; repair or replace
Cooling Season the motor as necessary.
☐ Check the unit’s drain pans and condensate piping ☐ Check the fan shaft bearings for wear. Replace the
to ensure that there are no blockages. bearings as necessary.
☐ Inspect the evaporator and condenser coils for dirt, ☐ Check the supply fan belt(s). If the belts are frayed
bent fins, etc. If the coils appear dirty, clean them or worn, replace them. Refer to the “Fan Belt
according to the instructions described in “Coil Adjustment-Belt Drive Units,” p. 26 for belt
Cleaning” later in this section. replacement and adjustments.
☐ Manually rotate the condenser fans to ensure free ☐ Verify that all wire terminal connections are tight.
movement and check motor bearings for wear.
☐ Remove any corrosion present on the exterior
Verify that all of the fan mounting hardware is tight.
surfaces of the unit and repaint these areas.
☐ Inspect the F/A-R/A damper hinges and pins to
☐ Generally inspect the unit for unusual conditions (e.
ensure that all moving parts are securely mounted.
g., loose access panels, leaking piping connections,
Keep the blades clean as necessary.
etc.)
RT-SVX057E-EN 27
Maintenance
28 RT-SVX057E-EN
Maintenance
-schematic(s)
-connections
Network ID
RT-SVX057E-EN 29
30
Table 7. Sample maintenance log
Refrigerant Circuit #1
- ok
- low
- ok
- low
- ok
- low
- ok
- low
- ok
- low
- ok
- low
- ok
- low
- ok
- low
- ok
- low
- ok
- low
- ok
- low
- ok
- low
- ok
- low
- ok
- low
RT-SVX057E-EN
Troubleshooting
WARNING alarms.
Hazardous Service Procedures! N o t e : Note: You can also navigate to the Alarms
menu at any time.
Failure to follow all precautions in this manual and
on the tags, stickers, and labels could result in 2. Once the alarm has been identified and the cause
death or serious injury. has been removed (for example, replaced faulty
Technicians, in order to protect themselves from sensor), the alarm can be cleared from the display.
potential electrical, mechanical, and chemical N o t e : If an alarm still exists after you clear it, it re-
hazards, MUST follow precautions in this manual displays within 5 seconds.
and on the tags, stickers, and labels, as well as the
following instructions: Unless specified otherwise, To Clear an Alarm
disconnect all electrical power including remote Once the alarm has been identified and the cause has
disconnect and discharge all energy storing been removed (for example, replaced faulty sensor),
devices such as capacitors before servicing. the alarm can be cleared from the display.
Follow proper lockout/tagout procedures to
1. Navigate to the desired alarm.
ensure the power can not be inadvertently
energized. When necessary to work with live 2. Press .
electrical components, have a qualified licensed 3. “ERASE?” is displayed.
electrician or other individual who has been
trained in handling live electrical components 4. Press .
perform these tasks. 5. “ALARM ERASED” is displayed.
6. Press (Menu Up) to complete the action and
return to the previous menu.
Standard Troubleshooting N o t e : If an alarm still exists after you clear it, it re-
Failures displays within 5 seconds.
RT-SVX057E-EN 31
Troubleshooting
FAULTS
Air temp. sensor Not economizing Economizing when Damper not Excess
TESTS
failure / fault when it should it should not modulating outdoor air
Damper Stuck at
x x
Minimum
Bad or Unplugged
x x x
Actuator
Actuator Mechanically
x x x x
Disconnected
To reset the system at the unit, cycle the unit power by • 8 Flashes: MA Temp Sensor
turning the disconnect switch “Off” and then “On”. • 9 Flashes: On-board Setpoint Failure
32 RT-SVX057E-EN
Wiring Diagrams
N o t e : Wiring diagrams can be accessed via e-Library order number search field or by contacting
by entering the diagram number in the literature technical support.
RT-SVX057E-EN 33
Warranty
For Commercial Unitary Exclusions and Limitations
Equipment Rated 25 Tons and The warrantor’s obligations and liabilities under this
warranty are limited to furnishing F.O.B. factory or
Under and Related Accessories warehouse at the warrantor-designated shipping point,
P r o d u c t s C o v e r e d — This warranty is extended by freight allowed to Buyer’s city (or port of export for
Trane, and applies to the following products: shipments outside the conterminous United States) a
replacement product or, at the option of the warrantor,
• All packaged and split system air conditioners and parts for the repair of the product not conforming to
heat pumps have a rated capacity of 25 tons and this warranty and which have been returned to the
under. warrantor.
• All packaged combinations gas/electric air The warrantor’s warranty is conditional on the
conditioners having a rated capacity of 25 tons and Customer providing written notice to the warrantor
under. within thirty (30) days of the discovery of the defect. No
• All packaged combination gas/electric air product shall be returned to the warrantor without the
conditioners having a rated capacity of 1.5 through warrantor’s written permission. No liability whatever
5 tons single phase electric power and used for shall attach to warrantor until said products have been
commercial applications. (As used in this warranty, fully paid for and then said liability shall be limited to
a commercial application is any application where the purchase price of the equipment shown to be
the end purchaser uses the product for other than defective.
personal, family or household purposes.) The warranty does not apply to any compressor or gas-
• All accessories for the above products which are fired heat exchanger which has been repaired or
sold by Trane and applied in accordance with Trane altered in such manner as, in the judgement of the
specifications. warrantor, affects its stability or reliability. This
warranty does not cover (1) any heat exchanger which
Basic Warranty has been fired with an improper type of fuel (2) a heat
exchanger which is installed in a beauty parlor, dry
The warrantor warrants for a period of twelve (12)
cleaning establishment, de-greasing plant or in any
months from the initial start-up or eighteen (18)
corrosive atmosphere; or (3) any heat exchanger which
months from date of shipment, whichever is sooner,
is not shown to be defective by the warrantor’s
that the products covered by this warranty (1) are free
inspection.
from defects in material and manufacture, and (2) have
the capacities and ratings set forth in the warrantor’s This warranty does not cover damage due to accident,
catalogs and bulletins. If any part of your air abuse, improper use, external causes, freezing,
conditioner fails because of a manufacturing defect, corrosion, erosion or deterioration. Local
Warrantor will furnish without charge the required transportation, related service labor, air filters,
replacement part. diagnosis calls, refrigerant and related items are not
covered.
If the heat exchanger fails because of a manufacturing
defect within five years from the date of start-up, THE WARRANTY AND LIABILITY SET FORTH HEREIN
Warrantor will furnish without charge a replacement ARE IN LIEU OF ALL OTHER WARRANTIES AND
heat exchanger. In addition, if the optional, factory LIABILITIES, WHETHER IN CONTRACT OR IN
installed, stainless steel heat exchanger fails because NEGLIGENCE, EXPRESS OR IMPLIED, IN LAW OR IN
of a manufacturing defect within ten years from the FACT, INCLUDING IMPLIED WARRANTIES OR
date of start-up, Warrantor will furnish without charge MERCHANTABILITY AND FITNESS FOR A
a replacement heat exchanger. PARTICULAR PURPOSE AND ANY IMPLIED
WARRANTIES OTHERWISE ARISING FROM THE
Any local transportation, related service labor and
COURSE OF DEALING OR TRADE. IN NO EVENT
diagnosis calls are not included. In addition, if the
SHALL THE WARRANTOR BE LIABLE FOR ANY
sealed motor-compressor fails because of a
INCIDENTAL OR CONSEQUENTIAL DAMAGES.
manufacturing defect within the second through fifth
year from the date of original purchase, Warrantor will The warrantor makes certain further warranty
furnish without charge the required replacement protection available on an optional, extra-cost basis.
compressor. Any further warranty must be in writing. If you wish
further help or information concerning this warranty,
contact: Trane — Warrantor, 2701 Wilma Rudolph
Blvd., Clarksville, TN 37040
34 RT-SVX057E-EN
Notes
RT-SVX057E-EN 35
Trane and American Standard create comfortable, energy efficient indoor environments for
commercial and residential applications. For more information, please visit trane. com or
americanstandardair.com.
Trane and American Standard have a policy of continuous product and product data improvement and reserve the right to change design and
specifications without notice. We are committed to using environmentally conscious print practices.