TK 60606-3-DM CANAIRE System Diagnostic's Manual Rev. 1 03-15 - EN
TK 60606-3-DM CANAIRE System Diagnostic's Manual Rev. 1 03-15 - EN
TK 60606-3-DM CANAIRE System Diagnostic's Manual Rev. 1 03-15 - EN
Microprocessor Controller
Revision 1.x Software
TK 60606-3-OD (Rev. 1, 03-15)
Diagnostic Manual
©
Copyright 2015 Ingersoll Rand Climate Solutions - EMEA
Printed in Czech Republic.
Printing History
Original 10/11 TV
Rev. 1 Updated all instructions to reflect current software UC
-IMPORTANT-
THERE ARE MANY DIFFERENT DIAGNOSTIC MANUALS AVAILABLE.
IT IS VERY IMPORTANT THAT THE CORRECT MANUAL BE USED.
BUS UNITS
with
CANAIRE MICROPROCESSORS
and
REVISION 1.X SOFTWARE
This manual is published for informational purposes only and the information so provided should not be considered as all-inclusive
or covering all contingencies. If further information is required, Thermo King Company (Ingersoll Rand Corporation) should be
consulted.
Sale of product shown in this manual is subject to Thermo King’s terms and conditions including, but not limited to, the Thermo
King Limited Express Warranty. Such terms and conditions are available upon request. Thermo King (Ingersoll Rand) warranty
will not apply to any equipment which has been so repaired or altered outside the manufacturer’s plants as, in the manufacturer’s
judgment, to effect it is stability.
No warranties, express or implied, including warranties of fitness for a particular purpose or merchantability, or warranties arising
from course of dealing or usage of trade, are made regarding the information, recommendations, and descriptions contained herein.
Manufacturer is not responsible and will not be held liable in contract or in tort (including negligence) for any special, indirect or
consequential damages, including injury or damage caused to vehicles, contents or persons, by reason of the installation of any
Thermo King product or its mechanical failure.
About This Manual
Since not everyone is familiar with microprocessor based control systems, please take a few minutes to
read this page. It explains the content and structure of this manual. This will make it easier for you to find
the information you need.
Section 2 - Hardware
This section consists of a description of the bus HVAC system components controlled by
CANAIRE.
Section 3 - Software
This section discusses the CANAIRE control system software and software features. It includes
information about the basic and programmable features of CANAIRE.
Section 4 - Operation
This section explains how to operate the CANAIRE and CAID Driver’s Panels (DP).
Section 5 - Diagnostics
This sections explains how to diagnose bus HVAC system problems using the CANAIRE/CAID Driver’s
Panels (DP), or with CANDiag.
3
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Section 1
Safety Precautions
Safety Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
General Safety Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Refrigerant Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Refrigeration Oil Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Electrical Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
High Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Low Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Battery Removal Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Electrostatic Discharge Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Welding Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
Main Module and I/O Modules (Microprocessor) Precautions . . . . . . . . . . . . . . . . . . . . . 1-7
Engine Coolant Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
First Aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
First Aid–Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
First Aid–Refrigeration Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
First Aid–Engine Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
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Safety Precautions
This section includes general safety precautions, specific CANAIRE microprocessor cautions, and first
aid information. Read this material carefully before working on any components of the microprocessor
controller system.
Safety Definitions
The following types of safety precautions appear in this manual:
DANGER: Denotes the possibility of serious injury or death.
WARNING: Denotes the possibility of serious damage to equipment and/or serious injury to
self.
CAUTION: Denotes the possibility of minor to severe damage to equipment and/or possible
injury to self.
Safety Precautions
General Safety Practices
DANGER: Never close the compressor discharge service valve with the unit running. Never
operate the unit with the discharge service valve closed.
DANGER: Never apply heat to a sealed air conditioning system or container. This can cause an
explosion.
DANGER: Refrigerants in the presence of an open flame, spark, or electrical short produce
toxic gases that are severe respiratory irritants which can cause serious injury or death.
DANGER: Keep your hands, clothing and tools clear of the fans when the unit is running.
Loose clothing may become entangled in moving pulleys or belts, causing serious injury or
death.
DANGER: Do not breathe refrigerant. Use caution when working with refrigerant or an air
conditioning system in any closed or confined area with a limited air supply (for example, a bus
or garage). Refrigerant tends to displace air and can cause oxygen depletion, resulting in
suffocation and possible death.
WARNING: Make sure the gauge manifold hoses are in good condition. Never let them come in
contact with a belt, fan, pulley, or any hot surface. This will damage equipment and can cause
serious injury.
WARNING: Always wear goggles or safety glasses when working on a unit. Refrigerant and
battery acid can permanently damage the eyes.
WARNING: Use extreme caution when drilling holes in a unit. The holes may weaken
structural components. Holes drilled into electrical wiring can cause a fire or explosion. Holes
drilled into an air conditioning system can release refrigerant.
WARNING: Use caution when working around exposed coil fins. The fins can cause painful
lacerations.
WARNING: Use caution when using ladders or scaffolding to install or service a unit. Always
observe the manufacturer’s safety labels and warnings.
CAUTION: Make sure all mounting bolts are tight and are the correct length for their
particular application. Improper torque and incorrect bolt lengths can damage equipment.
Refrigerant Precautions
DANGER: Do not use a Halide torch. When a flame comes in contact with refrigerants, toxic
gases are produced. These gasses can cause suffocation or even death.
DANGER: Store refrigerants in proper containers out of direct sunlight and away from intense
heat. Heat increases pressure inside storage containers, which can cause a container to explode.
DANGER: Do not use Oxygen (O2 ) or compressed air for leak testing. A mixture of Oxygen
(O2 ) and refrigerant can be combustible.
WARNING: Always use butyl lined gloves when handling refrigerants in order to protect
oneself from frostbite.
CAUTION: Always be careful when handling refrigerants. Refrigerants can cause frostbite.
When exposed to the atmosphere in the liquid state, refrigerants evaporate rapidly, freezing
anything they contact.
CAUTION: All transfers of refrigerant must be done in liquid state or damage to the equipment
may result.
CAUTION: When removing any refrigerant from a unit, use a recovery process that prevents or
absolutely minimizes refrigerant escape into the atmosphere. Refrigerants can be harmful to the
ozone layer.
CAUTION: Do not use the wrong oil. It will damage equipment and void the warranty.
CAUTION: Do not mix refrigeration oils. Mixing incompatible oils will damage the system.
CAUTION: Use dedicated equipment to prevent contaminating the system with the wrong type
of oil or refrigerant.
CAUTION: When adding oil to a system, do not expose the refrigeration oil to the air any longer
than necessary. Moisture in the oil will increase evacuation times, and can contaminate the
system.
CAUTION: Wipe up spills immediately. Oil can damage paints and rubber materials.
Electrical Precautions
High Voltage
When servicing or repairing a temperature control unit, the possibility of serious or even fatal injury from
electrical shock exists. Extreme care must be used when working with an air conditioning unit that is
connected to a source of operating power, even if the unit is not operating. Lethal voltage potentials can
exist at the unit power cord, inside the control box, at the motors and within the wiring harnesses.
DANGER: Some compressor and fan motor voltage is 230/460 Vac. Disconnect power to the
unit before opening ANY covers. Exposed high voltage connections are present inside the 460
Vac junction box, inside the control box (in the return air section), and inside the motor junction
boxes.
DANGER: Lethal amounts of voltage are present in some electrical circuits. Use extreme care
when working on an operating air conditioning unit.
WARNING: Do not make rapid moves when working on high voltage circuits in air
conditioning units. Do not grab for falling tools because you might accidentally touch a high
voltage source.
WARNING: Use tools with well insulated handles. Never hold uninsulated metal tools near
exposed, energized conductors.
WARNING: Treat all wires and connections as if they were high voltage until a meter and
wiring diagram indicate otherwise.
WARNING: Never work alone on high voltage circuits in the air conditioning unit. Another
person should be nearby to shut off the unit and provide aid in the event of an accident.
WARNING: Safety glasses, rubber- insulated gloves and cable cutters should be near your work
area, in the event of an electrical accident.
WARNING: Use caution when working with electrical circuits that contain capacitors. Some
capacitors hold a significant charge that might cause burns or shocks if accidentally
discharged. Make sure capacitors are discharged before working on electrical circuits.
Low Voltage
WARNING: Control circuits used in air conditioning units are low voltage (12 to 24 Vdc). This
voltage potential is not considered dangerous, but the large amount of current available (over 30
amperes) can cause severe burns if shorted or grounded.
WARNING: Do not wear jewelry, watches or rings. These items can short out, damage
equipment, and cause severe burns to the wearer.
This is done because the frame is grounded to the negative battery terminal. If the negative terminal is still
connected, a complete circuit exists from the positive terminal of the battery to the frame. If a conductive
tool contacts the positive side and the frame simultaneously, a spark or arcing will occur. If there are
sufficient hydrogen gases emitted from the battery, a battery explosion may occur, which can damage
equipment and cause serious injury or even death.
To prevent ESD damage while working on a microprocessor, a grounded wrist strap (204-622) should
always be used when handling a microprocessor that is not grounded to the unit by its fasteners. The
microprocessor should always be stored and shipped in the anti-static bag and protective packaging.
Additional information may be found in the Electrostatic Discharge (ESD) Training Guide TK 40282.
Welding Precautions
Precautions must be taken before electric welding is performed on any portion of the unit or the vehicle to
which an air conditioning unit is attached. It is necessary to ensure that welding currents are not allowed
to flow through the electronic circuits of the unit.
CAUTION: Use antifreeze specified as per engine manufacturer. Don’t mix different types of
antifreeze.
First Aid
First Aid–Refrigerant
In the event of frost bite, the objectives of First Aid are to protect the frozen area from further injury, to
warm the affected area rapidly, and to maintain respiration.
EYES : For contact with liquid, immediately flush eyes with large amounts of water. Get prompt medical
attention.
SKIN: Flush area with large amounts of lukewarm water. Do not apply heat. Remove contaminated
clothing and shoes. Wrap burns with dry, sterile, bulky dressing to protect from infection and injury. Get
prompt medical attention. Wash contaminated clothing before reuse.
INHALATION: Move victim to fresh air and use CPR (Cardio Pulmonary Resuscitation) or
mouth-to-mouth resuscitation, if necessary. Stay with victim until emergency medical personnel arrive.
Hardware
System Description
The Thermo King CANAIRE is a Controller Area Network (CAN) based control system for coach and
transit bus heating, ventilation, and air conditioning (HVAC) systems. Depending on configuration it
features automatic or operator controlled cooling, heating and ventilation modes of operation for up to
three separate zones.
System equipped with an optional Drivers Display Panel (DP) allows the operator to:
• Control the HVAC on/off function in auto mode operation.
• Select the temperature setpoints for up to two zones.
• Display the actual temperature Ambient Driver and Passenger zones.
• Display the outside ambient temperature.
• Monitor the blue cooling and red heating status LED’s.
• Monitor the yellow warning and red shut down indicators.
Depending on the configuration, the Drivers Panel also allows the service technician to:
• Read active alarm codes.
• Read temperature sensors.
CANAIRE PC Interface
Tool needed - Computer connection Kit (204-1911) - includes CAN interface to connect to PC. Include
CANDiag program for CANAIRE system Diagnosis for use by service technicians. This diagnostic
interface allows the technician to:
• Select and download custom unit configurations.
• Access and track a history of alarm codes with time/date stamps.
• Access hour meter readings for the compressor, evaporator and unit hours.
• Display and monitor system inputs and outputs.
• Test the system by means of manual or automatic cycling of system outputs.
• Calibrate sensor inputs.
• Monitor CAN messages.
CANAIRE Components
The CANAIRE is a component based system that allows system expansion as necessary to incorporate
additional features or multiple temperature control zones in applications such as articulated buses. The
CANAIRE system consists of the following major components:
Main Module
(up to 3 as required by application)
The Main Module provides the primary “intelligence” and acts as the main controller(s) for the system.
The Main Module, I/O Modules, and Drivers Panel communicate via CAN0 bus. Operating mode,
temperature setpoint and input/outputs are broadcast over the CAN bus to all modules which determines
what actions the system will perform. A CAN1 port is included on the G01 version of the Main Module to
provide an optional SAE J1939 interface to the vehicle network.
X1
X5
18-pin
X3
2. CANHO
3. CANLO
4. CH
4. CH
P1 Connector P2 Connector
I/O - P1 Connector
I/O - P2 Connector
P1 Connector P2 Connector
DP - X1 Connector
DP - X2 Connector
DP - X3 Connector
Pressure Transducers
The discharge pressure transducer (DPT) and the suction pressure transducer (SPT) supply pressure
information to the Main Module. This information may be displayed on the optional Pressure Readout
Module (PDM) or the optional Driver’s Display Module (DDM).
The DPT monitors the refrigerant pressure in the high side of the system. The SPT monitors the
refrigerant pressure in the low side of the system.The microprocessor uses information from the
transducers to operate the condenser fan motor speed control (units with a variable speed condenser fan)
and to protect the system under low pressure conditions by shutting off the compressor.
The Main Module will generate Alarm Code 073, 074, 075 or 076 if the DPT reports out of range and
Alarm Code 077, 078, 079 or 080 if the SPT reports out of range.
LST
LSB
Battery (BAT)
The CANAIRE operates on 24 Vdc supplied by the vehicle’s battery source. The BAT circuit provides a
24 Vdc input to the Main Module whenever the bus engine is running to allow the HVAC system to turn
on.
Fuses
Various fuses protect components in the system. Please refer to your unit Wiring and Schematic Diagrams
for correct fuses.
• At the thermostat setpoint, as measured by the floor level sensors, the floor blower motors will switch
to low speed and the floor level hot water solenoid valve will close.
• If the bus floor temperature, as read by the floor level temperature sensors, drops more than -16.6 C (2
F) below thermostat setpoint, the floor level blower motors will switch to high speed and the floor
level hot water solenoid valve will open.
Vent Mode
In Vent mode, the evaporator blowers run at the speed determined automatically by the microprocessor, or
manually by the driver. The compressor, boost pump, coolant valve remain off in this mode.
1 ON/OFF button
Two possibilities when driver panel is powered:
·Welcome screen with actual date and time and TK logo ► driver panel is powered but out of
operation ► to start press ON/OFF button.
·Standard operating screen.
2 Automatic control of required temperature** – driver's area
3 Driver's area temperature and air flow setting**
·To set higher temperature press red button, for lower temperature press blue button**.
·To set higher air flow for windscreen/driver's area press button with big ventilator, for less air
flow press button with small ventilator.
4 Air flow direction (Air distribution damper position)
·Use to change flow direction to windscreen or driver or to start defrost function.
5 Preheater control buttons (see page 4-5)
6 HVAC operating mode button
·To change HVAC unit operating mode press button repeatedly.
7 SMOG button
·Use this button to close both HVAC unit and Feedback Fresh Air dampers.
·SMOG mode is terminated automatically after pre-set period (see page
).
To cancel press SMOG button again.
8 Passenger's area temperature and air flow setting
·To set higher temperature press red button, for lower temperature press blue button.
·To set higher air flow press button with big ventilator, for less air flow press button with small
ventilator.
9 Automatic control of required temperature – passenger's area
10 LCD graphic display (see page 4-7)
**The compressor is always controlled by HVAC unit. If the cooling function is required by Front Box only
the compressor doesn't start.
Figure 4-1: CANAIRE Drivers Panel Main Functions
1 ON/OFF button
7 SMOG button
Use this button to close both HVAC unit and Front Box* fresh air dampers.
The SMOG mode is terminated automatically after pre-set period or to cancel
press SMOG button again.
* Depends on system configuration.
** The compressor is always controlled by HVAC unit. If the cooling function is required by Front
Box only the compressor doesn't start.
1 ON/OFF button
Ventilation
Heating
Cooling
AUTO mode
Reheat* (TWO DROPS symbol – if available and configured)
6 SMOG button
Use this button to close both HVAC unit and Front Box* fresh air dampers.
The SMOG mode is terminated automatically after pre-set period or to cancel
press SMOG button again.
7 ECO button*
Preheater Control
1 ON/OFF button
2 PREHEATER ON button
·Press for immediate start of preheater.
·Press again to stop preheater operation.
3 PREHEATER TIMER button
Short press – activate the timer.
Long press (more than 3 seconds) – setting of Preheater Wake Up time:
1 Change ► HOURS
Press upper or lower button with ventilator symbol on LEFT SIDE repeatedly.
3 Change ► MINUTES
Press upper or lower button with ventilator symbol on LEFT SIDE repeatedly.
5
Change ► DAY
Press upper or lower button with ventilator symbol on LEFT SIDE as necessary.
Selected week day is underlined. Repeat steps 4 and 5 for every day.
6 Finish
Press ON/OFF button shortly.
When the ignition is switched OFF display shows date and time for next 12 seconds.
If preheater timer is ON, timer icon will be also visible for this period.
Display Icons
1 Driver's area temperature set point* 7 Passenger's area temperature set point*
Driver's area – air flow indicator Passenger's area – air flow indicator
2 8
(Front Box blower speed) (HVAC unit blower speed)
Air flow direction (air distribution damper
3 9 SMOG icon
position) indicator
4 Automatic mode of Front Box icon 10 HVAC unit operating mode icon
Alarms
The CANAIRE control system uses dual alarm system with two levels of signals:
• ALARM ("RED" alarm)
• WARNING ("YELLOW" alarm)
When any RED alarm appears in system:
• Alarm icon SERVICE KEY shows on display.
• Alarm acoustic signal sounds – long beep and then short beeps repeatedly.
• Arrange repair IMMEDIATELY.
Any RED alarm will switch HVAC unit to the VENTILATION mode with automatic blower speed. The
driver can change the blower speed manually. The compressor and condenser fans are stopped.
The alarm codes are stored in the memory to identify possible fault conditions. The alarm records can be
displayed on the driver panel in Setup Menu. The complete alarm history can be read by CANDiag
software only.
The alarm symbols can be removed by restart of control system (use the ON/OFF key to switch OFF, wait
for 2 seconds, switch ON). After restart – if the reason for alarm is still in existence – the alarm symbol
can appear again. If the alarm comes up again, don't restart the unit more times. In that case contact the
service department or Thermo King representative immediately.
NOTE: For more information see chapter 6 - Alarm Codes
Setup
Press the 3 buttons AUTO Driver and AUTO Passenger and SMOG for 3
Start
seconds to enter Main Menu.
Upper
Press AUTO button to go back to upper menu level (ESC function).
level
To change value for selected (highlighted) item press upper or lower
Change
button with ventilator symbol on LEFT SIDE repeatedly.
Select next item with upper or lower button with ventilator symbol on
Next
RIGHT SIDE. (LEFT and RIGHT function).
In Setup mode operator can escape Setup menu every time by pressing ON/OFF key. No changes will be
applied. When any function is selected and any value is changed the change is saved to the memory in the
same time.
Language Setup
Use system described above to select Language folder and desired language.
Units
Use system described above to select Units folder and Celsius or Fahrenheit.
NOTE: Carefully check the version od ClimaAIRE ID driver panel. For CAN control system can
be used version G02 or G03 (with CAN transceiver populated). See the version code on rear side
of driver panel – see Figure: ClimaAIRE ID CAN driver panel (rear side).
Operating Elements
A/C mode
Heat mode
Ventilation mode
Mode select
In normal operating mode - Auto mode - the controller selects the right mode (cool or heat or venti-lation)
automatically.
• Reheat/Auto mode - unit will operate in cool or heat mode based on operating conditions to ensure
proper air temperature and humidity. The cooling and heating function can be used simultaneously
(this is "Reheat mode")
• A/C mode - unit will operate in cool mode (based on operating conditions) or ventilation
• Heat mode - unit will operate in heat mode (based on operating conditions) or ventilation
• Ventilation mode - unit will be in ventilation only, cooling or heating will be disabled
NOTE: The Heat mode can be applicable only for HVAC units in 1004 version (cooling/heating).
NOTE: When CA ID controller is used in HVAC system equipped with two speeds blowers the LOW
and HIGH blower speeds are applicable - the MEDIUM speed position is not used and if selected than
blowers run in low speed only.
If no key was pressed in last 2 seconds and fresh air button is pressed once, the FA symbol and
recirculated air symbol lights up together and the fresh air damper is closed for next 10 minutes. After this
period the controller returns to previous FA state (indicated by FA symbol).
If FA key is pressed once more than the "smog mode" is canceled and FA damper position can be
selected.
Automatic ON feature
Depending on Ao parameter (see " ") the controller (driver panel) will be switched ON or stays OFF
depending on state when power supply was switched OFF:
• If the driver panel was ON when power supply was switched OFF; on next system start - power
supply ON - the driver panel will also start (internal memory keeps the last operating status;
parameter Ao is set to 00)
• If the driver panel was OFF when power supply was switched OFF; on next system start - power
supply ON - the driver panel will stay OFF (internal memory keeps the last operating status;
parameter
• Ao is set to 00)
• OR the driver panel always will be switched ON when the power supply is switched ON
(parameter Ao is set to 01)
Lock function
Depending on Lc parameter (see " ") the driver panel buttons functions are obvious or described further
(factory settings) or:
• blower speed key and fresh air select key are locked, have no response on pressing (Lc =01)
• mode select key, blower speed key and fresh air select key are locked (Lc=02)
Manual mode
ClimaAIRE ID can control HVAC unit in manual mode to operate system directly in heating or cooling.
Manual mode has to be enabled by parameter Lt in driver panel setup.
In automatic mode operator can change the setpoint in range from LS (minimal value of setpoint) to HS
(maximal value of setpoint), default range is from 17 °C to 27 °C. When the control mode is changed
to Manual mode then setpoint value can be set to Lo command instead of LS or to Hi command instead of
HS value:
• Lo command switches ON continual signal for compressor/clutch (relay output CR = 1)
• Hi command switches ON continual signal for boost pump (relay output BPR = 1)
With both commands red or blue icons on the right side of display are switched ON. These icons indicate
heating system (boost pump) or cooling (compressor) operation.
By Lt parameter (Lt=02) Manual mode can be enabled with limited duration for 5 minutes. The function is
the same as in above described Manual mode but after 5 minutes:
• Hi command switches back to HS value and thereafter driver panel operates HVAC system
automatically
• Lo command switches back to LS value and thereafter driver panel operates HVAC system
automatically
Here the described Manual mode is conditioned with a normal operation - the Auto mode. By pressing
of the Mode select key and selection of Ventilation or Heat or A/C mode the Manual mode is
non-functional (the Lo/Hi command can stay on display but blue/red icon will switch down).
NOTE: Direct heating command in manual mode is applicable only for HVAC units in 1004 version
(cooling/heating), in version 1000 (cooling) is used ventilation function only.
Freeze protection
Temperature of evaporator coil is measured by sensor (CTS). If this temperature is lower than value
in parameter Fr for more than 30 seconds - that can be dangerous for freezing - the compressor output
signal (CR) is switched OFF . Compressor (and condenser fan also) can return to operation if temperature
of evaporator coil rises approx. 5 °C above Fr parameter for more than 1 minute.
Compressor protection
The compressor output (CR) can be switch ON (compressor can start) only if ambient temperature (ATS)
is higher than value of parameter Ab.
Setup/Calibration/Test mode
For access to Setup/Calibration/Test mode the driver panel needs to be in normal operation. Press
and hold the Temperature DOWN key and the Temperature UP key simultaneously for 3 seconds till text
(Function 1) "t-1" will be displayed.
In Setup/Calibration/Test mode the buttons on the panel uses different function - see following table.
ESCAPE key
ClimaAIRE ID functions
Press the UP or DOWN key repeatedly to scroll through the function menu. In the Test/Setup/Calibration
mode the operator can use functions listed in following table.
In main menu of Setup/Calibration/Test mode the operator can switch the control system OFF on every
time by pressing of the ON/OFF key. No changes will be applied.
When any function is selected and any value is changed by DOWN key or UP key, in the same moment is
the change saved to memory.
The driver panel Setup/Calibration/Test mode always waits for switching OFF (soft restart) - the
Setup/Calibration/Test mode must be finished by pressing ON/OFF key. Next start (soft restart) returns
the system to the normal operating mode immediately.
NOTE: In Setup/Calibration/Test mode the HVAC unit is out of operation.
NOTE: In ClimaAIRE ID CAN version some functions are not used compare to standard ClimaAIRE
ID panel.
3 Pr Set up of program number and reading of firmware version always use nr. 99
Important:
When switching between operating modes you will see blue and/or red LED blinking first, then
continuously on. The blinking indicates that CAID CAN is sending a request for output
activation via CAN bus to CAN Main module. LED(s) contiously ON indicates that the outputs
have been set
In Setup/Calibration/Test mode with DOWN or UP key select "t1" and press ENTER key. In "Test mode
1" are available following tests:
1. Cooling/Heating control
Press "Mode key" to change heating and cooling outputs. The following table is
used to verify of all relay outputs and function of heating and cooling
Press "Blower speed key" to change evaporator blower speed. The following
table is used to verify of all relay outputs and functions of evaporator blowers.
When the desired program number is shown press ENTER key to save a new program number to
memory. To leave of program setup without any changes press ESCAPE key. Press UP or DOWN key to
continue with another function or press ON/OFF key to save all changes and switch OFF (soft restart) the
system.
IMPORTANT: No calibration available. The calibration always must be done via CANDiag.
IMPORTANT: Alarms displayed by ClimaAire ID CAN control panel are informative only. For
detailed diagnostics alarms from CAN Main module must be read via CANDiag software.
IMPORTANT: Menu „Hr“ can be used partially only. For detail information the data from
CAN Main module must be read via CANDiag software.
Section „un“ – unit hours – will show driver’s panel hours. Real unit hours must be obtained from Main
module
NOTE: Sections CL (hours), CL (cycles) and Fr (freeze cycles) are useless if they permanently show
„00“. In that case the values can be obtained from CAN Main module only.
2. A window will appear - Press Finish. The CANDiag will now launch.
3. Three new icons will appear on your desktop once the installation is complete.
1. Connect the USB/CAN Interface Cable to the USB port on the PC.
2. A window will appear - Found New Hardware Wizard - Select Yes and Press Next.
Peak Interface CD
4. A window will appear after the software has been installed - Press Finish.
5. Go to the Desktop:
• Select My Computer
• Select Devices with Removable Storage
• Open Peak Products CD Drive.
10. A window will appear - PEAK OEM Drivers Installation - Press Next.
11. A window will appear - Select I agree to accept the License Agreement - Press Next.
13. A window will appear - Select PCAN-USB, PCAN-USB Hub - Press Next.
16. A window will appear - Press Next - Program will begin installing.
• Access hour meter readings for compressor, evaporator and unit hours.
• Display and monitor system inputs and outputs.
• Test HVAC system by means of manual or automatic cycling of system outputs.
• Calibrate sensor inputs.
• Monitor CAN messages.
PC Connection Kits
Diagnostic Cable
To Bus Main
Module
RS-232 Connection Cable
P4 (9 pin)
Connection
To Bus Main
RS-232 Connection cable Module P4
(9 Pin)
Connection
To Bus Main
Module P4
(9 pin)
RS-232 Connection cable Connection
Once Port Setup has been selected, the Customize setting screen will appear. This screen allows you to
select from 8 COM ports.
NOTE: The correct COM port must be selected or an error message will appear when trying to connect
to the Main Module. Use the Device Manager Function on your PC or consult your IT department to
determine which COM port is used by your PC.
5. Select - Open - search for the desired file name with a .mhx extension.
Once the file is selected, the file name should appear in the Hex File box.
7. Cycle power to the Main Module by either turning the display off then back on, or by disconnecting
and reconnecting the P3 4-pin connector on the Main Module then select -OK.
8. Select - OK - then close flash loader window, remove download cable and cycle power to return to
normal operation.
Accessing CANDiag
1. See page 4-15 for cable connection details
2. Apply power to the board and launch CANDiag from the desktop icon. The CAN Diag Main Menu
window will appear.
• Across the top of the CANDiag Main Menu are numerous icons to select from.
• Descriptions of each icon are given on the following pages.
Help Icon
Select - Help Icon - this will appear.
Introduction
Select - Introduction - a brief introduction of CanDiag will appear.
Firmware update
Select - Firmware update - explains in detail how to download the latest revision Firmware.
Main module
Select - Main module - identifies connectors found on the Main module (Main Module).
Alarm codes
Select - Alarm codes - identifies alarm codes used with CANAIRE.
• Select - (individual modules) for more details.
• Example: Select - Main module ID 0 alarm codes 001-099 - Description and corrective action of
alarm code appears.
Others
Select - EEPROM Communication - This feature is available for Thermo King development only.
NOT USED
Select - Temperature Sensor dependence - Indicates temperature dependence of all temperature sensors
except CDS sensor.
Select - Download new firmware versions - Provides a direct link for downloading Firmware files.
Exit - Help - You will return to the CAN Diag Main Menu.
Login Icon
The technician must login to access all the diagnostic programs available in CANDiag.
Select - Login icon.
• Select User Name - User, service and engineering access levels will appear in the drop down
menu.
• Select service and enter Password - irkolin.
• Press OK - You will return to the CAN Diag Main Menu.
Setup Icon
The technician can set how the information will be displayed in CANDiag programs by choosing the
Setup icon.
NOTE: The setup only needs to be used when using the CANDiag for the first time.
Select - Setup icon.
• Under “Monitor Setup” Unless you want to receive a report for a particular fault in the unit
that you are monitoring, you can de-select these check boxes. These reports can occupy a large
storage space on you computer over time.
Connect Icon
This allows the technician to connect directly to the selected CAN interface. Once connected, the
technician can now open the individual CAN interface modules and perform diagnostic procedures.
Select - Connect icon.
• The individual CAN interface modules available are shown across top of screen and active
hardware will be shown..
Control Will be used to perform
Panels diagnostic procedures
Active
May be used depending
Hardware
on unit configuration
• Floor Module screen will appear and settings can be adjusted if necessary.
• Closing the window will return you to the CANDiag Main Menu.
TK Net
TK Net allows the technician to identify the Firmware software revision installed in the Main Module
and Driver’s Panel.
Select - TK Net - Then select Search CAN Network.
Release Icon
This allows the technician to release (disconnect) from the selected CAN interface.
Select - Release icon.
Exit Icon
Selecting Exit icon allows the technician to exit the CANDiag application including all opened windows.
Select - Exit icon.
• Data Monitor screen will appear - This screen (along with six drop down tabs across the top) can
be used to perform diagnostic test on the HVAC system.
• Exit - Data Monitor - You will return to the CANDiag Main Menu.
Setup Configuration
• To setup/change Parameters if necessary from Data Monitor Screen
• Go to - Setup Parameter - tab and select desired configuration from the Customized Configuration
drop down box.
• You can Select - Read Data - To view what is currently programmed into the Main Module. (See
details of Setup Parameter on page5-48).
3. Select - Send Data - After programming is complete the following message will appear.
NOTE: Any change made in the setup must be confirmed by Send Data to the Main Module.
4. Select - Yes - unit will return to normal operation.
The CANAIRE incorporates diagnostic features which can aid the operator or service technician in
troubleshooting the unit. It is designed to help isolate a problem via Alarm Codes or other symptoms and
refer the technician to the appropriate actions and service procedures necessary to complete the repair.
Diagnosing the unit can be done using the following:
• Driver’s Panel - CAID DP or CANAIRE DP
• Laptop PC with CANDiag installed
Driver’s Panel (DP)
The DP can display compressor suction and discharge pressures for up to two compressors per zone. It
also has diagnostic capabilities to display temperatures, pressures and alarms, and has a Service Test
Mode that allows individual system components such as relays, fans, valves and dampers to be tested. A
Pre-Trip Test is also part of the Service Test Mode.
See “Diagnostics Procedures using the DP” from page 5-2.
CANDiag
A laptop PC with CANDiag installed allows the technician to interface directly with the unit. By using the
diagnostic or download cables, the PC can interface with CAN to:
• Select and download custom unit configurations.
• Access and track history of alarm codes with time/date stamps.
• Access hour meter readings for compressor, evaporator and unit hours.
• Display and monitor system inputs and outputs.
• Test HVAC system by means of manual or automatic cycling of system outputs.
• Calibrate sensor inputs.
• Monitor CAN messages.
Troubleshooting Suggestions
The following suggestions will prove helpful when working on CANAIRE control systems.
• Record all alarm codes in sequence for reference.
• Clear all alarms before testing a unit.
• Be certain all wire harness connectors are securely in place.
• Be certain all programmable features are restored to the customers specifications before releasing the
unit from service.
Software Revisions
See “Software Revisions” on page 4-2 for additional information and instructions for checking and
loading software.
NOTE: Use Fan buttons on the right hand side of the control Panel only for this operation.
MAIN MENU
The following can be selected in the sub-menus:
• FW Version
• DP Setup
• Time Setup
• Front Box Setup
• Main Setup
• Relay Test
• Show Temperatures
• Driver’s area A/C unit / heater settings
• Alarms
• Hour Meter
• Firmware of the A/C system components
• Driver’s panel settings
• Time settings
• Passenger A/C system settings
• Relay self-test
• Show temperatures of the sensors
• Show and clear alarms
• Hour meter of the A/C system components
FW Version
Scroll to Firmware version in the main menu, and select F to enter
The following firmware is an example of what will be displayed:
DP Setup
The following submenu’s are available in Driver’s area panel settings (DP) Setup:
NOTE: Press F again to enter the submenu’s
Preheater Timer -> Time setting auxiliary 120 min Auxiliary Heater longer
Heater time
Shorter duration
NOTE: Be sure to confirm every change with + F and you may return back a step with
Time Setup
Shorter time
NOTE: Be sure to confirm every change with + F and you may return back a step with
Main Setup
Main air conditioning system settings:
Menu Description
Program Number Main Shows Program Number
Compres. Protect. Compressor protection start-up block
Floor Heat Lim. Floor heating switch-on limit
Duct Temp. Duct temperature upper limit
Freeze Protect Freeze protection compressor off
Heating Prot. Heater upper limit
Cond Speed min Condenser fan at min. speed %
Cond Speed max Condenser fan at max. speed %
Evap Speed min Ht Evaporator blower min. when heating
Evap Speed min Co Evaporator blower min. when cooling
Evap Speed max Evaporator blower max. for
heating/cooling
Relay Test
Menu Submenu Description
Main 0 All Outputs Off All signals off
Floor 0 EFL Evap Lo Speed EFL evaporator blower low speed
Main 1 EFM Evap Mi Speed EFM evaporator blower medium speed
Floor 1 EFH Evap Hi Speed EFH evaporator blower high speed
Front Box CFL Cond Lo Speed CFL condenser blower low speed
Full Heating All
CFH Cond Hi Speed CFH condenser blower high speed
Full Cooling All
LSB Loader sol Bot LSB Liquid solenoid valve for floor heater
LST Loader sol Top LST Liquid solenoid valve for heating in roof A/C unit
BPR Heat Pump BPR water pump for heater
OTP 1 output 1 OTP1 Fan floor heater on
OTP2 output 2 OTP2 Auxiliary heater on
SM1 output SM1 Water valve for floor heater on
CL1 Compressor 1 CL1 Compressor clutch 1 on
CL2 Compressor 2 CL2 Compressor clutch 2 on
FA1 Fresh Air % FA1 Open fresh air damper in % with
FA2 Fresh Air % FA2 Open fresh air damper in % with
H1 Ser Heat 1 % H1 Open servo-motor heating valve % with
H2 Ser Heat 2 % H2 Open servo-motor heating valve % with
PWME Speed Ev % PWME Speed of evaporator blower % with
PWMC Speed Co % PWMC Speed of condenser blower % with
PWM1 Speed 1 % PWM1 Speed …………………blower % with
PWM2 Speed 2 % PWM2 Speed …………………blower % with
Full Heating Heating unregulated
Full Cooling Cooling unregulated
NOTE: All % with are manually adjustable. To Enter a menu again - press F. Fan buttons on the left
side of the driver’s panel Increase or decrease the value in this instance. To go back press auto.
Show Temperatures
Menu Submenu Description Reading
Main 0 Main Control Unit 0
RTS Return air temp. sensor 10.4°C
ATS Ambient temperature sensor 26.0°C
CDS n/a
CTS1 Evaporator freeze protection 12.0°C
temp. sensor
Front Box
Menu Submenu Description Reading
Drivers Area A/C
Unit
RTS Return air temp. sensor 10.4°C
ATS Ambient temperature sensor 26.0°C
CTS Evaporator freeze protection 14.0°C
temp. sensor
DTS Duct temp. sensor 16.0°C
SWV Servo motor heating water 2%
valve
SAD Servo-motor window/floor 2%
SFA Servo-motor fresh air 0%
Alarm
Menu Sub-Menu Description
Alarms Alarm Indicator
Active Alarm Shows active alarms
Alarm Read Shows list of all alarms
Clear Alarms Clears All alarms from the list
Reading Hourmeters
Menu Sub-Menu Description Reading
Hourmeter Shows the run-time of the A/C system and components
HVAC System on Heating, ventilation and A/C 21 Hrs 28 Min 12 Sec
operation
Driver Panel run Driver’s panel running time 15Hrs 14Min 58Sec
IMPORTANT: Alarms displayed by ClimaAire ID CAN control panel are informative only. For
detailed diagnostics alarms from CAN Main module must be read via CANDiag software. See
“Received Error Data” on page 19. for more details.
1 2 3 4
1. On/Off
2. Down
3. Up
4. ENTER
CAID Display buttons
1. Controller must be in On position.
2. Press and hold the DOWN and the UP simultaneously once (,,t1“ will be displayed).
3. Press the UP and DOWN keys to scroll through the menu selections:
,,t1“ - Test mode 1 – basic test A/C unit function
,,rt “ - Manual relay test
,,Pr “ - Set up of program number and firmware version reading
,,CA“ - Calibration of temperature sensors
,,SE“ - Set Up parameters
„AL“ - Reading and clearing alarms
,,Hr“ - Reading hour meter
4. Press the ENTER key to start reading all alarms. All alarms will be displayed for 3 seconds and in the
end ,,dE“ will be displayed for clearing of all alarms.
5. Press the ENTER key to clear all alarms or press the On/Off key to switch Off the controller and to
store all alarms in the controller.
The left side of the screen shows real-time inputs from an operating bus HVAC system along with:
• Power Voltage
• Setpoints Main and Floor
• Operating Mode
• Received Error Data (Alarms)
• Compressor 1 and 2 output status
• Evap/Cond Speeds
See “Left Side of Data Monitor Screen - Input / Output Descriptions” on page 5-40.
The right side of the screen has 6 tabs across the the top for:
• Unit Control
• Relay Test
• Calibration
• Setup Parameter
• Hour & Alarm
• CAN 1 cfg (not used)
See “Right Side of Data Screen - Descriptions of Functions” on page 5-17.
Input Monitor
RTS = Return Temperature Sensor
CTS1 = Coil Temperature Sensor
Select this box to control HVAC operation manually.
DTS1 = Discharge Temperature Sensor
CDS = Compressor Discharge Sensor
Power = Operating Voltage
ATS = Ambient Temperature Sensor
CTS2 = Coil Temperature Sensor
DTS2 = Discharge Temperature Sensor
PCB = Printed Circuit Board Temperature
Sensor
SPT1 = Suction Pressure Transducer 1
DPT1 = Discharge Pressure Transducer 1
SPT2 = Suction Pressure Transducer 2
DPT2 = Discharge Pressure Transducer 2
CO2 = CO2 (Carbon dioxide) SENSOR
Servo FA1 = Fresh Air Servo setting 1
Servo FA2 = Fresh Air Servo setting 2
Ser. Heat1= Heater Servo setting 1
Ser. Heat2 = Heater Servo setting 2
CPS = Condenser Pressure switch
IN1= Input pins. Current determines mode
when ’Mode Switch’ box is checked in Setup
Parameters tab.
EFA = Evaporator Motor Feedback
CFA = Condenser Motor Feedback
Setpoint Main = Indicates temperature setting
Setpoint Floor = Indicates temperature setting
Operating Mode - Indicates mode of operation
NOTE: O = Ground and 1 = 24V
Ouputs
EFL = Evaporator Fan Low
EFM = Evaporator Fan Medium
EFH = Evaporator Fan High
CFL = Condenser Fan Low
CFH = Condenser Fan High
.ST = LST - Liquid Solenoid Top
.SB = LSB - Liquid Solenoid Bottom
BPR = Boost Pump Relay
DTP1 = Discharge Pressure Transducer 1
DTP2 = Discharge Pressure Transducer 2
Unit Control
Selecting Unit Control allows the technician to operate the system directly from the PC.
1. Select Send Control Msg every 1000ms to monitor real time data and to operate system directly
from the PC using CANDiag.
2. Select Switch On to turn the bus HVAC on allowing CANDiag to operate and monitor the system
directly from the PC.
3. To operate the system:
• Operating Mode - Select from Ventilation, Heating, Cooling, etc.
• ECO Mode (Economy Mode) - Select “On” to enable economy mode. Select “Disable” to
engage and disengage compressor per thermostat demand.
• Evaporator Blower Speed - Allows choice of individual blower speeds or Stepless Enable to
operate manually using the slide bar.
• Condenser Fan Speed - Select Enable to operate manually using the slide bar.
• PWM1 Speed - Pulse Width Mode 1
• PWM2 Speed - Pulse Width Mode 2
• Roof Unit Setpoint - Allows main unit setpoint to be adjusted manually using the slide bar.
• Floor Heating Setpoint - Select Enable allows setpoint to be adjusted manually using slide bar.
• Floor Heating Blower - Select Enable allows choice of individual blower speeds or Stepless to
operate manually by percent using slide bar.
• Fresh Air Servo 1 - Select Enable to operate Fresh Air DC Motor 1 manually by percent using
slide bar.
• Fresh Air Servo 2 - Select Enable to operate Fresh Air DC Motor 2 manually by percent using
slide bar
• Heat Servo 1 - Water Valve Heating 1
• Heat Servo 2 - Water Valve Heating 2
2. Selecting the alarm code will bring up details on that particular code including a description and
corrective action procedures.
Relay Test
Selecting Relay Test allows the technician to operate the relays directly from the PC.
1. Select - Relay Test.
Relay Test screen will appear.
Calibration
Selecting Calibration allows the technician to calibrate sensors or clutch directly from the PC.
1. Select - Calibration.
Calibration screen will appear.
NOTE: Input monitor screen (left side of Data Monitor Screen) must read in degrees C to calibrate
sensors. If you previously set your unit configuration to read degrees in F (Fahrenheit) you will need
to change it to C (Celsius). Refer to “Setting Unit Configuration” on page 3-10. Return the unit of
measure setting back to degrees F after calibration is complete. Software will be revised in the future to
eliminate this step.
To calibrate a sensor:
1. Use calibrated temperature meter
2. Place it near sensor to check correct temperature near sensor
3. Calibrate chosen sensor
NOTE: Using this method you correct also inaccuracy of sensor:
CDS n/a
Setup Parameter
Selecting Setup Parameter allows the technician to setup unit operating parameters directly from the PC.
1. Select - Setup Parameter.
Setup Parameter screen will appear.
Customized Configuration
2. Select - Mode Switch - IN0 and IN1 input pins, current state determines mode when Mode Switch
box is checked.
When Setup Parameter is first opened - 0000 - Default - Basic Test appears in the Customized
Configuration box.
3. To view the current unit configuration settings installed in the bus Main Module - Select Read Data.
• Configuration with factory settings will be displayed in the Setup Parameter box.
• Configuration that has been modified/customized will be displayed in the Setup Parameter box
and highlighted in yellow.
4. To change the current unit configuration installed in the bus Main Module - Select Customized
Configuration - choose your specific unit configuration from the drop down list (See “Setup
Parameter “page 3-13) - Select Send Data
• The unit is now re-configured to factory settings.
NOTE: The CANDiag program automatically uploads the latest configuration files from the internet
upon startup.
Basic Parameters
This tab allows the technician to make adjustments as necessary to the basic parameters of the unit.
See Note
NOTE: Temperature values in the “Basic Tab” Leave at factory settings. Automatically
are displayed in C (Celsius) only. checked if needed by configuration
settings.
Ab = Ambient cut out temperature for compressor. Proportional = Brushless AC/DC motors.
Abh = Used by automode when switching modes. 2 Speed = Permanent magnet motors.
Dt = Discharge air temperature switch point.
Fr = Freeze Protection Mode. Coil temperature
reading initiates.
Ht = Heat mode cut out. Restricts evaporator blower All functions in the basic tab are predetermined based on the
operation until coolant meets set temperature customized configuration file selected. Changes from factory
parameter. default for a customized configuration file is not recommended.
CDS Warn. = Compressor discharge sensor warning Consult Thermo King Service Department before making
parameter. changes to a customized configuration file.
NOTE: Selecting No DP Diag will lock out the diagnostic mode feature for the Driver’s four key Display
Module (DP).
Setpoint Mode
This tab allows the technician to make adjustments as necessary to the setpoint curve of the unit.
1. Select - Setpoint/Mode.
Setpoint Mode screen will appear.
2. Select Read then select Setpoint Curve.
3. Change Setpoint High (SPH) and Setpoint Low (SPL) as necessary. Recommended Factory default
settings are 72 for SPH and 68 for SPL.
4. Ambient Temp Low (ATL) and Ambient Temp High (ATH) are used in auto mode to determine set
point curve. (See Demo Setpoint).
5. Press OK tab after desired values are entered.
6. Exit returns you to the Setup Mode screen.
TH Sequence
This tab allows the technician to make adjustments as necessary to the thermostat sequence of the unit.
1. Select - TH Sequence.
Thermostat Sequence screen will appear.
NOTE: These are predetermined values and should not require adjustment. Engineering access
password required to make changes to this tab. Consult Thermo King Service Department before
any adjustments are made.
Serial Numbers
This tab allows the technician to identify individual unit information such as current configuration file
and revision letter, unit serial numbers and production dates.
1. Select - Serial Numbers.
Serial Numbers screen will appear.
Hour Meter
2. To display unit hours - Select Read Hour Meter.
The following screen will appear displaying the hourmeter information.
Alarms
1. To view stored alarms - Select Read Alarms - If an alarm is present it will appear by code number.
2. To clear stored alarms - Select Clear Alarms.
3. To view alarm details - Select List of Alarms.
• Main module alarms screen will appear - Select alarm from the right side of the screen.
• The alarm description and corrective action will appear on the right side of the screen.
• Selecting another alarm from the left side of screen will bring up that alarm’s detail.
Exit Icon
Selecting Exit icon allows the technician to exit the CANDiag application including all open windows.
Select - Exit icon.
Service Tools
CANAIRE PC connection kit
Kit nr./Order nr.: TK 204-1911 (Thermo King engineering nr. 1E56596G01)
Contents:
• Item 1: electronic USB to CAN bus interface. USB connector is plugged into your PC, the 9-pin
connector (CANON9) provides CAN signals. (Includes Peak Interface CD)
• Item 2: reduction harness CAN interconnects item 1 of the kit with A/C units‘ installation CAN
bus harnesses. It is terminated with 4-pin connector junction which allows its connection into
whatever CAN harness point. Disconnect CAN installation harnesses and insert the connector
junction in order to connect installation harnesses together again while having CAN bus branch
for CAN diagnostic. This makes A/C system ready for CAN bus diagnostics and setting.
• Item 3: RS232 communication cable, used to upload firmware into CAN Main module.
• Item 4: cable reduction for kit TK 204-1063, as it reduces power supply from 14 pin connector to
18-pin connector (e.g. used on FrontAIRE II driver panel).
If harness item 2 is not long enough, you can use item 3 of the kit or a longer standard RS232 cable
like a CAN bus extension for diagnostics.
This kit is used to upload firmware into ClimaAIRE ID CAN drivers panel as well as into I/O Floor
module.
Shutdown Alarms
When the red Shutdown Indicator appears on the Driver’s Panel (DP), a shutdown alarm is present.
Shutdown alarms will disengage the compressor by de-energizing the compressor clutch. The condition
that caused the shutdown alarm must be corrected and cleared before the compressor can be re-engaged.
It is possible to clear a shutdown alarm at any time, but the alarm will re-occur if the condition that caused
the alarm is not corrected. The cause of shutdown alarms should be corrected as soon as possible.
The shutdown alarm will re-occur if the cause of the alarm is not corrected and the unit is restarted.
Alarm Codes
000-099 Main Module ID0 100-199 Main Module ID1 200-299 Main Module ID2
Y = yellow check alarm R = red shutdown alarm O = occurrence (no alarm)
• Current from CL1 output is lower 2. If there is no clutch 1 in HVAC unit, check
than 0.15A configuration in setup page.
• Clutch output CL1 overloaded 2. Check clutch for overloading (wrong type
(output current > 3.75A - 3 second of clutch or damaged clutch).
delay before alarm). 3. Uncalibrated clutch output CL1 - switch on
• Clutch output CL1 overloaded the clutch output by relay test and
(output current >6A - alarm w/o/ measure the current by clamp meter and
any delay). compare it with value in CanDiag window.
009 Y Evaporator Coil Temperature Sensor 1. Disconnect the sensor and measure
(CTS1) failure - low value. resistance of the sensor.
• Short circuit on wiring to CTS. • Resistance must be ±5% in value
• Temperature around sensor is dependent on temperature.See
lower than -40 C (-40 F). temperature dependence reference
earlier in this book.
021 R Clutch 2 (CL2) output open circuit or 1. Check wiring for clutch 2 output CL2
underload. (pin P5-18 on Main Module) for open
• Clutch 2 output (CL2) is open. connectors or broken wire.
• Current from CL2 output is lower 2. If there is no clutch 2 in HVAC unit, check
than 0.15A. configuration in setup page.
• Clutch output CL2 overloaded 2. Check clutch for overloading (wrong type
(output current > 3.75A - 3 second of clutch or damaged clutch).
delay before alarm) 3. Uncalibrated clutch output CL2 - switch on
• Clutch output CL2 overloaded the clutch output by relay test and
(output current > 6A - alarm w/o measure the current by clamp meter and
any delay. compare it with value in CanDiag window.
• Use load about 1A - 3A. If difference is
higher than 0.5A, main module must
be calibrated (higher login privileges
are necessary).
See calibration of clutch output.
023 Y Low Pressure Cut-out Compressor 2 (CL2) 1. Check evaporators fan operation.
2. Check for blocked, dirty or iced evaporator
coil.
3. Install gauges and check refrigeration
system performance.
4. Check for low refrigerant charge.
5. Check for restricted filter drier.
024 R High Pressure Cut-out Compressor 2 1. Check condenser fan operation.
(CL2)
2. Check for blocked or dirty condenser coil.
3. Install gauges and check refrigeration
system performance.
025 R Low Pressure Cut-out Compressor 2 (CL2) 1. Check condenser fan operation.
cycled 5 times in 10 minutes
2. Check for blocked or dirty condenser coil.
3. Install gauges and check refrigeration
system performance.
026 R Low Pressure Cut-out Compressor 2 (CL2) 1. Check evaporators fan operation.
longer than 10 minute (only if clutch was
2. Check for blocked, dirty or iced evaporator
activated)
coil.
3. Install gauges and check refrigeration
system performance.
4. Check for low refrigerant charge.
5. Check for restricted filter drier.
027 R Clutch 1 (CL1) cycling 1. Check wiring for clutch 1 output CL1
• Clutch 1 CL1 circuit cycling. (pin P5-18 on Main Module) for:
3
THIS PAGE INTENTIALLY LEFT BLANK
Changes and Comments
CANAIRE Diagnostic Manual TK 54650-3-OD
You are invited to comment on this manual so it can be updated and improved to better meet your
needs. Any corrections or comments are welcome. Please complete the following information:
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NOTE: Use Fan buttons on the right hand side of the control Panel only for this Main 1 Cond Speed max Condenser fan at max. speed % FA1 Fresh Air %
operation. offset
Evap Speed min Ht Evaporator blower min. when heating FA2 Fresh Air %
Main 2
offset Evap Speed min Co Evaporator blower min. when cooling H1 Ser Heat 1 %
Setpoint 15°C Increase/ Evap Speed max Evaporator blower max. for heating/ H2 Ser Heat 2 %
min decrease cooling
PWME Speed Ev% (evaporator blower)
Setpoint 28°C Increase/ NOTE: To Enter a menu again - press F PWMC Speed Co % (Condenser Blower)
max decrease
Individual values can be changed as before with small and large fan
PWM1 Speed 1 %
Eco Mode 0 not in use buttons; to go back press auto
0 PWM2 Speed 2 %
NOTE: Be sure to confirm every change with + F and you may return back a Full Heating
step with
Full Cooling
NOTE: Fan buttons on the left side of the driver’s panel Increase or decrease the
value in this instance. To go back press auto.
Show Temperatures Alarm 025
026
R
R
Low pressure cut-out compressor 2 cycled 5 times in 10 min.
Low pressure cut-out compressor 2 longer than 10 min.
027 R Clutch 1 cycling
028 R Clutch 2 cycling
029 O Evaporator coil 1 frozen
Menu Submenu Reading Menu Sub-Menu Description 030 O Evaporator coil 2 frozen
031 Y Compressor discharge temperature warning
Main 0 Main Control Unit 0 Alarms Alarm Indicator 032 R Compressor discharge temperature shutdown
033 Y Fresh air servo 1 failed during initialization
RTS 10.4°C Active Alarm Shows active alarms 034 Y Fresh air servo 1 failure
035 Y Fresh air servo 2 failed during initialization
ATS 26.0°C Alarm Read Shows list of all alarms 036 Y Fresh air servo 2 failure
037 Y Heater valve servo 1 failed during initialization
CDS Clear Alarms Clears All alarms from the 038 Y Heater valve servo 1 failure
list 039 Y Heater valve servo 2 failed during initialization
CTS1 12.0°C 040 Y Heater valve servo 2 failure
NOTE: To Enter a menu again - press F. To go back press auto 041 Y SM1 output failure
042 Y SM2 output failure
Viewing Active alarms direct from the
CTS2
DTS1
20.0°C
15.0°C
control Panel
043
044
045
Y
Y
Y
SM3 output failure
SM4 output failure
SM5 output failure
Diagnostic Procedures
046 Y SM6 output failure
DTS2 20.0°C If the Warning triangle or the “Wrench” (service symbol) appears. 047 Y EEPROM error
048 Y Configuration check sum error
Floor 0 Floor heater control unit not in use 050 Y Evaporator fan low speed output open circuit or underload
051 Y Evaporator fan low speed output short circuit or overload
Main 1 Main control unit 1 not in use 052 Y Evaporator fan med.speed output open circuit or underload
053 Y Evaporator fan med. speed output short circuit or overload
Floor 1 Floor heater control unit not in use 054 Y Evaporator fan high speed output open circuit or underload
055 Y Evaporator fan high speed output short circuit or overload
NOTE: To Enter a menu again - press F. To go back press auto 056 Y Condenser fan low speed output open circuit or underload
057 Y Condenser fan low speed output short circuit or overload
Front Box 058 Y Condenser fan high speed output open circuit or underload
059 Y Condenser fan high speed output short circuit or overload
060 Y LSB (liquid solenoid Bottom)output open circuit or underload
061 Y LSB (liquid solenoid Bottom) output short circuit or overload
Menu Submenu Reading 062 Y LST (liquid solenoid Top) output open circuit or underload
063 Y LST (liquid solenoid Top) output short circuit or overload
Drivers Area A/ 064 Y Boost pump relay output open circuit or underload
• Press the F button for approx. 3 seconds 065 Y Boost pump relay output short circuit or overload
C Unit
066 Y OTP1 output open circuit or underload
• Alarm numbers will be displayed. 067 Y OTP1 short circuit or underload
RTS 10.4°C
ATS 26.0°C
• Select auto to go back 068
069
Y
Y
OTP2 output open circuit or underload
OTP2 short circuit or underload
Using CANAIRE Driver’s Panel
ALARM CODES 071 Y Evaporator blower fault
CTS 14.0°C 072 Y Condenser fan fault
073 R Discharge pressure transducer 1 out of range - low
DTS 16.0°C NOTE: See Diagnostic Manual TK 60606-3-OD for more 074 R Discharge pressure transducer 1 out of range - high
075 R Discharge pressure transducer 2 out of range - low
details 076 R Discharge pressure transducer 2 out of range - high
SWV 2%
Y= yellow check alarm R= red shutdown alarm 0= no alarm 077 Y Suction pressure transducer 1 out of range - low
SAD 2% 078 Y Suction pressure transducer 1 out of range - high
CODE TYPE DESCRIPTION OF ALARM 079 Y Suction pressure transducer 2 out of range - low
000 No Alarm 080 Y Suction pressure transducer 2 out of range - high
SFA 0%
001 R Clutch 1 output open circuit 081 Y Preheater Error F 01