TM 9-4120-407-14
2-7. OPERATING PROCEDURES. (Cont)
e. Operation in Cool Mode.
Obstructing the airflow across the condenser coil will cause
excessively high refrigerant discharge pressures and could
severely damage the equipment.
Liquid refrigerant can accumulate in the compressor when power is
disconnected. Be sure power has been connected to the air
conditioner for a period of at least 30 minutes prior to starting in
cool mode to prevent equipment damage.
(1) Roll up and secure the fabric cover.
(2) Open the condenser air discharge deflector door.
CONDENSER DISCHARGE
AIR DEFLECTOR DOOR
(MUST BE OPEN DURING
COOLING OPERATION)
Figure 2-13. Condenser Air Discharge Deflector Door
Obstructing the airflow across the evaporator coil will cause
excessively low refrigerant suction pressures and could severely
damage the equipment.
(3) Adjust the evaporator air discharge and return grilles and the fresh air damper as desired.
Figure 2-14. Fresh Air Damper (Door) Adjustment
2-24
