Thermo King KD-II SR, Manual

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Unit Description (Rev. 04/03)
13
If cooling or heating is required and the engine temperature
is below approximately 120 F (96 C), but the engine fails to
start automatically:
• Push the OFF key.
• Check for and correct any alarm conditions and clear
the alarm codes. View the alarms with the SELECT
key, clear the alarms with the ENTER key, and the
repeat the auto start procedure. Refer to the appropriate
Operation and Diagnosis Manual (TK 41087) for
detailed information about alarms.
• If the engine will still not start, push the OFF push but-
ton, determine and correct the cause of the failure.
After Start Inspection
• After the unit is running, the following items can be
quickly checked to confirm that the unit is running
properly.
1. OIL PRESSURE. Check the engine oil pressure in
high speed by pressing the SELECT key to OIL
PRESS. The oil pressure should be 30 to 80 psig
(207 to 552 kPa).
When first starting a cold engine, the oil pressure may
be higher.
2. COMPRESSOR OIL. The compressor oil level
should be visible in the sight glass.
3. REFRIGERANT. Check the refrigerant charge. See
Refrigerant Charge in the Refrigeration Maintenance
chapter.
4. PRE-COOLING. Make sure that the setpoint is at the
desired temperature and allow the unit to run for a min-
imum of 1/2 hour (longer if possible) before loading the
truck.
This provides a good test of the refrigeration system
while removing residual heat and the moisture from the
truck interior to prepare it for a refrigerated load.
5. DEFROST. When the unit has finished pre-cooling the
truck interior, manually initiate a defrost cycle. This
will remove the frost that builds up while running the
unit to pre-cool the truck.
To manually initiate a defrost cycle, press the manual
defrost key. Refer to the Operation Manual for detailed
information about Manual Defrost.
The defrost cycle should end automatically.
NOTE: The unit will not defrost unless the evaporator
coil temperature is below 45 F (7.2 C).
LOADING PROCEDURE
1. Make sure the unit is OFF before opening the doors to
minimize frost accumulation on the evaporator coil and
heat gain in the truck. (Unit may be running when load-
ing the truck from a warehouse with door seals.)
2. Spot check and record load temperature while loading.
Especially note any off-temperature product.
3. Load the product so that there is adequate space for air
circulation completely around the load. DO NOT block
the evaporator inlet or outlet.
4. Products should be pre-cooled before loading. Thermo
King units are designed to maintain loads at the temper-
ature at which they were loaded. Transport refrigeration
units are not designed to pull hot loads down to temper-
ature.
Post Load Procedure
1. Make sure all the doors are closed and locked.
2. Start the unit. If it was shut off to load, see Restarting
Unit.