ARMY TM 9-4120-380-14
AIR FORCE TO 35E9-136-21
5.9. SERVICE MANIFOLD INSTALLATION. This task covers service.
Tool kit, service, refrigeration unit (Item 1, Appendix B)
Disconnect input power to the air conditioner before performing any internal
maintenance. Voltages used can KILL Shutting the unit off at the control panel does not
disconnect unit power.
(1) Disconnect air conditioner input power at source, and
Death or serious injury may result If personnel fall to observe safety precautions Use
great care to avoid contact with liquid refrigerant or refrigerant gas being discharged
under pressure. Sudden and irreversible tissue damage can result from freezing Wear
thermal protective gloves and a face protector or goggles in any situation where skin-
eye-contact IS possible.
Prevent contact of refrigerant gas with flame or hot surfaces. Heat causes the
refrigerant to break down and form carbonyl chloride (phosgene), a highly poisonous
and corrosive gas
Remove protective caps from compressor high and low pressure service valves (see fig 5-3).
Insure all valves on service manifold are closed, then remove caps from service ports.
Remove blue and red hoses from service manifold hose rack.
Connect blue hose to compressor low pressure (suction) service valve and red hose to compressor high pressure
(discharge) service valve.