Carrier TRANSICOLD Supra 560 User manual

Operator’s Manual
62-11674
Rev B
TM
Supra 560, 660, 760, 860, & 960
Truck Refrigeration Units

OPERATOR’S MANUAL
For
Supra 560, 660, 760, 860 & 960
Truck Refrigeration Units
© 2020 Carrier Corporation ●Printed in USA April 2020

62-11674
TABLE OF CONTENTS
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
UNIT IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
PRE-TRIP INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
UNIT OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
PRETRIP CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CHANGING SETPOINT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
START/STOP OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . 10
CONTINUOUS RUN OPERATION . . . . . . . . . . . . . . . . . . . . 12
MANUAL DEFROST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
CITY SPEED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
FUNCTION CHANGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
UNIT DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
ALARM BUZZER, DISPLAY & RESET . . . . . . . . . . . . . . . . . 19
STOPPING UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
PRODUCT LOADING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
RECOMMENDED TRANSPORT TEMPERATURES . . . . . . 23
PROBLEMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
RELAY BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
UNIT MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
UNIT MAINTENANCE SCHEDULE . . . . . . . . . . . . . . . . . . . 30
STANDBY OPERATION GUIDELINES . . . . . . . . . . . . . . . . 32
EMERGENCY ROAD SERVICE . . . . . . . . . . . . . . . . . . . . . . 33

1 62-11674
INTRODUCTION
This guide has been prepared for the operator of Carrier Transicold diesel
truck refrigeration units. It contains basic instructions for the daily
operation of the refrigeration unit as well as safety information,
troubleshooting tips, and other information that will help you to deliver the
load in the best possible condition. Please take the time to read the
information contained in this booklet and refer to it whenever you have a
question about the operation of your Carrier Transicold Supra unit.
Your refrigeration unit has been engineered to provide long, trouble-free
performance when it is properly operated and maintained. The checks
outlined in this guide will help to minimize over-the-road problems. In
addition, a comprehensive maintenance program will help to ensure that
the unit continues to operate reliably. Such a maintenance program will
also help to control operating costs, increase the unit’s working life, and
improve performance.
This guide is intended as an introduction to your unit and to provide
general assistance when needed. More comprehensive information can
be found in the Operation and Service Manual for your unit. This manual
can be obtained from your local Carrier Transicold dealer.
When having your unit serviced, be sure to specify genuine Carrier
Transicold replacement parts for the highest quality and best reliability.
At Carrier Transicold, we are continually working to improve the products
that we build for our customers. As a result, unit specifications may
change without notice.

62-11674 2
UNIT IDENTIFICATION
Each Supra 60 Series unit is identified by a nameplate attached to the
frame near the accumulator. This nameplate identifies the complete
model number of the unit, the serial number, the refrigerant charge and
quantity, and the date the unit was placed in service.
If a problem occurs, please refer to the information on this plate, and
make a note of the model and serial number before calling for assistance.
This information will be needed when you contact a technician or Carrier
Transicold Service Engineer so that he or she may properly assist you.
NAMEPLATE

3 62-11674
SAFETY
Your Carrier Transicold refrigeration unit has been designed with the
safety of the operator in mind. During normal operation, all moving parts
are fully guarded to help prevent injury. During all pre-trip inspections,
daily inspections, and problem troubleshooting, you may be exposed to
moving parts; please stay clear of all moving parts when the unit is in
operation and when the unit main power switch is in the RUN position.
WARNING
!
Unit may start automatically at any time even if the
switch is in the OFF position. Use proper lockout/tagout
procedures before inspection/servicing. All unit inspec-
tion/servicing by properly trained personnel only.
WARNING
!
Under no circumstances should ether or any other
starting aids be used to start the engine.
AUTO-START/STOP
Your refrigeration unit is equipped with Auto-Start/Stop, a valuable fuel
saving feature. When the unit is set for Auto-Start/Stop operation it may
start at any time and without warning. When performing any check of the
refrigeration unit (e.g., checking the belts, checking the oil), make certain
that the main power switch is in the OFF position.
ENGINE COOLANT
The engine is equipped with a pressurized cooling system. Under normal
operating conditions, the coolant in the engine and radiator is under high
pressure and is very hot. Contact with hot coolant can cause severe
burns. Do not remove the cap from a hot radiator. If the cap must be
removed, do so very slowly in order to release the pressure without spray.
REFRIGERANTS
The refrigerant contained in the refrigeration system of your unit can cause
frostbite, severe burns, or blindness when in direct contact with the skin or
eyes. For this reason, and because of legislation regarding the handling of
refrigerants during system service, we recommend that whenever your unit
requires service of the refrigeration system, you contact your nearest
Carrier Transicold authorized repair facility for service.
BATTERY
This unit utilizes a lead-acid type battery. The battery normally vents small
amounts of flammable hydrogen gas. Do not smoke when checking the
battery. A battery explosion can cause serious physical harm and/or blindness.

62-11674 4
PRE-TRIP INSPECTION
The pre-trip inspection should be performed before picking up any load.
This inspection is essential to anticipate and help minimize the possibility
of “over-the-road” problems. These checks take only a few minutes.
1. Place the unit’s main switch in the STOP (0) position.
2. Fuel - Drain any water and impurities from the sump of the
refrigeration unit fuel tank by opening the drain-cock located on the
bottom of the tank (if so equipped). Close the valve when only pure
fuel emerges. Check the fuel level in the tank, ensuring that the fuel
supply is adequate for unit operation. Refuel if necessary.
3. Belts - Check the belt tension by depressing the belt with your
thumb, near the center of the longest free run of each belt. Under
moderate pressure, each belt should deflect approximately 6mm to
13mm (1/4 inch to 1/2 inch). If the belts deflect more than this, they
should be tightened (loose belts may slip, generating heat and
reducing belt life). If the belts are too tight, they should be
loosened; tight belts can reduce bearing life.
4. Battery - On units equipped with serviceable batteries, the level of
the electrolyte in each of the cells should be checked. If the level is
low, distilled water should be added to the correct level. Most units,
however, are equipped with low or no maintenance batteries.
These should be inspected to ensure that the connections are
clean and tight, and the battery hold-down should be checked for
tightness.
5. Engine Oil - The engine oil should be checked last since it is
necessary for oil to drain from the block and into the oil pan to
obtain a correct reading. Remove the dipstick, wipe it off and re-
insert it fully into the engine block. Once again, remove the dip-stick
and observe the oil level; it should be somewhere between the full
and add marks. If it is below the add mark, add oil until the level is
correct.
WARNING
!
Inspect battery cables for signs of wear, abrasion or
damage at every pre trip inspection and replace if nec-
essary. Also check battery cable routing to ensure that
clamps are secure and that cables are not pinched or
chafing against any components.

5 62-11674
6. General Unit - Visually inspect the entire unit for leaks, loose bolts,
frayed, loose, or broken wires, etc. The radiator and condenser
coils of the unit should be free of dirt, bugs, cardboard, or any other
debris that may obstruct airflow across the coils. The evaporator
(located inside the body) should be free of debris also, especially
stretch-wrap, which is often used during transport to prevent cargo
shifting.
7. Truck body - The body should be inspected prior to loading. Check
the door and vent seals for damage and wear. Inspect the entire
interior and exterior of the body for damage. Check for damage to
the inner and outer skins of the body. Damage to the insulation may
compromise the unit’s ability to maintain the product temperature
by increasing the amount of heat gain across the truck body.

62-11674 6
UNIT OPERATION
Starting the Unit - Road Operation
WARNING
!
Under no circumstances should ether or any other
starting aids be used to start the engine.
1. Place the I/O switch in the “I” position.
2. If the unit was previously used in Standby Mode, press the ROAD
key.
Under normal circumstances this is all that is required to start the unit.
The unit will then perform a complete diagnostic check on the
microprocessor controller, pre-heat for the required amount of time based
on the engine temperature and start automatically.
Complete the Pre-Trip Inspection described in the previous section.
BOX TEMPERATURE
AUTO START/STOP
I
UNIT DATA
PRETRIP
ALARM/FAULT
STANDBYBUZZER OFF
MAN
DEFROST
CITY
SPEED
ROAD
FUNCTION ENTER
SETPOINT
O
i
--20 35° F
12

7 62-11674
Starting the Unit - Standby Operation
WARNING
!
Make sure the power plug is clean and dry before con-
necting to any power source.
WARNING
!
Do not attempt to connect or remove power plug or per-
form service and/or maintenance before ensuring the
unit I/O switch is in the “O” position.
1. Place the unit I/O switch in the “O” position.
2. Connect unit to appropriate power source. (See table in Standby
Operation Guidelines Section)
3. Place the unit I/O switch in the “I” position.
4. Press the STANDBY key.
Under normal circumstances this is all that is required to run the unit in
standby power. The unit will then perform a complete diagnostic check on
the microprocessor controller and start automatically.
Complete the Pre-Trip Inspection described in the previous section.
BOX TEMPERATURE
AUTO START/STOP
I
UNIT DATA
PRETRIP
ALARM/FAULT
STANDBYBUZZER OFF
MAN
DEFROST
CITY
SPEED
ROAD
FUNCTION ENTER
SETPOINT
O
i
--20 35° F
134

62-11674 8
PRETRIP CHECK
1. Start and run the unit until the box temperature is 40°F ± 5° (4.4°C
± 2.8°).
2. Press the PRETRIP CHECK key.
The PRETRIP FUNCTION initiates a check of all normal operating
modes. Upon initiation, the unit will cycle through all operating modes at
30 second intervals. The display will show “PPPP” at the beginning and
will show various unit data during the pre-trip cycle. The final PRETRIP
mode is Defrost. When Defrost ends, PRETRIP will be complete.
This is not a self-diagnosing pretrip test. No specific pretrip alarms will be
generated. Pretrip must be monitored by the user to verify that the unit
operates through all cycles.
BOX TEMPERATURE
AUTO START/STOP
I
UNIT DATA
PRETRIP
ALARM/FAULT
STANDBYBUZZER OFF
MAN
DEFROST
CITY
SPEED
ROAD
FUNCTION ENTER
SETPOINT
O
i
PPPP
2

9 62-11674
CHANGING SETPOINT
1. Press the UP or DOWN arrow key to increase or decrease the dis-
played setpoint.
2. Press the ENTER key when the desired setpoint is displayed to
lock in the new setpoint.
The new setpoint will flash and then return to the original set-
point if the ENTER key is not pressed within 5 seconds.
Setpoints of -22°F to +89°F (-30°C to +32°C) may be entered via the
keypad. The controller always retains the last entered setpoint in memory.
If no setpoint is in memory (i.e. on initial startup), the controller will lock
out the run relay and flash “SP” on the left hand display until a valid
setpoint is entered. The setpoint may be changed up or down in 1°
increments by pressing and releasing either the UP or DOWN arrow key.
You cannot change setpoint when unit is in Pretrip or when viewing Unit
Data or Functional Parameters.
BOX TEMPERATURE
AUTO START/STOP
I
UNIT DATA
PRETRIP
ALARM/FAULT
STANDBYBUZZER OFF
MAN
DEFROST
CITY
SPEED
ROAD
FUNCTION ENTER
SETPOINT
O
i
--20 35° F
2
1

62-11674 10
START/STOP OPERATION
1. Check if the AUTO-START/STOP indicator is illuminated.
2. If not, press the AUTO-START/STOP toggle key to place the unit in
Start/Stop mode. AUTO-START/STOP will then be illuminated.
The AUTO-START/STOP key is used to change the operating mode from
“Continuous Run” to “Auto-Start/Stop.” Each push of the key will alternate
the operating modes. The Auto-Start/Stop indicator on the display will
illuminate when Auto-Stop/Start is enabled. If the indicator is not
illuminated, the unit is in the Continuous Run Mode.
Automatic start/stop is provided to permit starting/restarting of the diesel-
driven compressor as required. This gives the microprocessor automatic
control of starting and stopping the diesel engine. The main function of
automatic start-stop is to turn off the refrigeration system near the setpoint
to provide a fuel efficient temperature control system and then restart the
engine when needed. Start-Stop operation is normally used for frozen
loads. Refer to Recommended Transport Temperatures Section.
Whenever the unit starts in Auto-Start/Stop, it will run until:
• It has run for the predetermined minimum run time.
• The engine coolant temperature is above 122°F (50°C)
• The box temperature is at setpoint.
BOX TEMPERATURE
AUTO START/STOP
I
UNIT DATA
PRETRIP
ALARM/FAULT
STANDBYBUZZER OFF
MAN
DEFROST
CITY
SPEED
ROAD
FUNCTION ENTER
SETPOINT
O
i
--20 35° F
2
1

11 62-11674
The controller will not shut off the engine if the battery voltage is not
sufficient to restart it. Battery voltage above approximately 13.4 volts is
required for shutdown. This varies depending on ambient. Look at battery
voltage in the data list to find out whether shutdown voltage has been
reached. If there is a “+” in front of the number, the voltage is enough to
shutdown and restart. If only the number appears, the voltage is still too
low for shutdown.
The controller will restart the engine if any of the following criteria have
been met:
• Box temperature has changed by ±11°F (± 6.1°C) for setpoints in
the perishable range and + 11°F (+ 6.1°C) for setpoints in the fro-
zen range DURING minimum off time.
• Box temperature has moved away from setpoint by ± 3.6°F (2.0°C)
AFTER minimum off time for setpoints in the perishable range or
+0.5°F (0.3°C) for setpoints in the frozen range.
• The battery voltage drops below 12.2 Vdc (Refer to Unit Data
Section).
• The engine coolant temperature drops below 34°F (1°C).
NOTE
When configuration CNF11 is “ON” and setpoint is 32 to 42°F
(0 to 5.5°C) the unit is locked into continuous run. The AUTO-
START/STOP key is disabled.
NOTE
Auto-Start/Stop operation may be tied to the setpoint ranges
for frozen and perishable loads and the AUTO-START/STOP
key may be locked out.

62-11674 12
CONTINUOUS RUN OPERATION
1. Check if the AUTO-START/STOP indicator is illuminated.
2. If it is, press the AUTO-START/STOP toggle key to place the unit in
Continuous Run mode. The AUTO-START/STOP indicator will not
be illuminated.
In the Continuous Run mode, the diesel engine will run continuously
providing constant air flow and temperature control to the product.
Continuous Run operation is normally used for perishable loads. Refer to
Recommended Transport Temperatures Section.
Continuous operation may be tied to the setpoint ranges for frozen and
perishable loads and the AUTO-START/STOP key may be locked out.
BOX TEMPERATURE
AUTO START/STOP
I
UNIT DATA
PRETRIP
ALARM/FAULT
STANDBYBUZZER OFF
MAN
DEFROST
CITY
SPEED
ROAD
FUNCTION ENTER
SETPOINT
O
i
--20 35° F
2
1

13 62-11674
MANUAL DEFROST
1. Check that the box temperature is 40°F (4.4°C) or lower.
2. Press the MANUAL DEFROST key to initiate manual defrost.
The defrost mode may be initiated in three different ways if the evaporator
coil is below 40°F (4.4°C):
1. Defrost is initiated automatically at preset intervals by the defrost
timer in the microprocessor.
2. Defrost is initiated by the defrost air switch.
3. The defrost mode may be manually initiated by pressing the
MANUAL DEFROST key.
The defrost mode terminates when the evaporator temperature is higher
than 55°F (12.8°C). Should the defrost cycle not complete within 45
minutes, the defrost cycle is terminated automatically by the
microprocessor.
After the 45 minute termination, the controller will wait 1.5 hours before
attempting another defrost cycle. Pressing the MANUAL DEFROST key
will override this mode and start a defrost cycle.
If a shutdown alarm occurs, defrost will be terminated.
BOX TEMPERATURE
AUTO START/STOP
I
UNIT DATA
PRETRIP
ALARM/FAULT
STANDBYBUZZER OFF
MAN
DEFROST
CITY
SPEED
ROAD
FUNCTION ENTER
SETPOINT
O
i
--20 35° F
2
1

62-11674 14
CITY SPEED
1. Press the CITY SPEED key to toggle between low speed only and
normal operating mode.
The CITY SPEED key enables the city speed mode of operation. In the
city speed mode, the unit will operate in low speed. Each push of the key
toggles the operating mode. The city speed indicator on the display will
illuminate when the city speed mode is enabled.
BOX TEMPERATURE
AUTO START/STOP
I
UNIT DATA
PRETRIP
ALARM/FAULT
STANDBYBUZZER OFF
MAN
DEFROST
CITY
SPEED
ROAD
FUNCTION ENTER
SETPOINT
O
i
--20 35° F
1