AIR CONDITIONING SYSTEM START-UP (Cont).

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AIR CONDITIONING SYSTEM START-UP (Cont).

TM-55-1905-219-14-2 Landing Craft Utility (LCU) 1667 Class Boston Hull Numbers 1667-1670 NSN 1905-00-168-5764 Manual

AIR CONDITIONING SYSTEM START-UP (Cont).

TM 55-1905-219-14-2

2-108. AIR CONDITIONING SYSTEM START-UP (Cont).

(e)

Rotate the compressor suction stop shut-off valve (13) slowly clockwise until the proper compressor

suction pressure is reached.

If the compressor starts knocking, or the compressor suction gauge continues to

fluctuate, STOP the compressor immediately, and rotate the compressor suction stop

shut-off valve (13) clockwise. Wait five minutes and attempt a restart, with the

compressor suction stop shut-off valve (13) partially open.

(29) Check the following gages.

Compressor Suction Temperature (22)-65 (17.8 ).

Compressor Suction (21)-80 to 100 psi (551.6 to 689.5 kPa).

(30) Rotate the compressor suction stop shut-off valve (13) full counter-clockwise.

(31) Check the lube oil pressure gage (23). The pressure should be 20 to 55 psi (137.9 to 379.2 kPa).

(32) Check the sea water cooling pressure gage (24). The pressure should be 70 to 75 psi (482.6 to 517.1

kPa).

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