Operational Checks - TM-9-4120-428-140103

TM 9-4120-428-14

0017 00

CAUTION

Do not check operation in the COOL mode until after the input power has been

reconnected to the unit for a sufficient amount of time. This is done to eliminate any

danger of liquid refrigerant accumulation in the compressor. Under moderate conditions,

if input power has been disconnected, allow for a four-hour warm-up period. If air

conditioner has been exposed to below freezing temperatures without input power, an

eight-hour warm up period is recommended.

1. Be sure the MODE SELECTOR switch is in the

Operational Checks

OFF position. Reconnect input power.

2. Perform function checks on the air conditioner

in all operational modes.

3. Set the air conditioner for its desired operational

mode.

4. Record the performance of quarterly PMCS,

including all corrective actions taken.

END OF WORK PACKAGE

0017 00-7