TM 55-8145-202-14
(4) Allow refrigeration unit to operate in heating mode until door seals warm up. When warm, door seals
will be soft and flexible.
CAUTION
To prevent damage to rear door seals, keep doors closed during extremely cold weather. Open
only for loading or unloading.
(5) Close rear doors.
(6) Refer to TM 9-4110-258-13 for operation of the refrigeration unit in extreme cold.
(7) Refer to TM 5-6115-585-12/34 for operation of the generator set in extreme cold.
2-14.
OPERATION IN EXTREME HEAT
Observe the following precautions when operating the refrigerated container in extreme heat.
(1) If possible, keep container out of direct sunlight. Shade container with a tarp or similar type cover.
(2) Do not block air circulation around refrigeration unit.
Keep area clear of equipment and other
obstructions.
(3) Periodically inspect refrigeration unit condenser coils. Coils must be kept clean. Refer to TM 9-4110-
258-13 for cleaning instructions.
(4) Periodically inspect refrigeration unit evaporator coils (inside container). If frost becomes 1/8 to 1/2
inch (3.2 to 12.7 mm) thick before unit defrosts, place temperature controller in defrosting mode (TM 9-
4110-258-13).
(5) Refer to TM 9-4110-258-13 for operation of the refrigeration unit in extreme heat.
(6) Refer to TM 5-6115-585-12/34 for operation of the generator set in extreme heat.
2-15.
OPERATION IN RAINY OR HUMID CONDITIONS.
Observe the following precautions when operating the refrigerated container in rainy or humid conditions:
(1) To prevent frosting of container interior, rear doors should be opened only for loading or unloading.
(2) If possible, keep refrigeration unit and generator set sheltered from rain.
(3) Make sure generator set is properly grounded to prevent electrical shock (TM 5-6115-585-12/34).
(4) Periodically inspect refrigeration unit evaporator coils (inside container). If frost becomes 1/8 to 1/2
inch (3.2 to 12.7 mm) thick before unit defrosts, place temperature controller in defrosting mode (TM 9-
4110-258-13).
(5) Refer to TM 9-4110-258-13 for operation of the refrigeration unit in rainy or humid conditions.
(6) Refer to TM 5-6115-585-12/34 for operation of the generator set in rainy or humid conditions.
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