TM 10-5410-228-24
3.9.1
R22 Refrigerant System Servicing Continued.
(2)
Remove dust caps from low (5) and high (6) compressor valve service ports.
(3)
Connect low pressure gage hose (7) on manifold gage set (1) to suction (low side) compressor
service valve port (5).
(4)
Connect high pressure gage hose (8) on manifold gage set (1) to discharge (high side) compressor
service port (6).
(5)
Remove dust caps from low (9) and high (10) evaporator service valve ports.
(6)
Connect low pressure gage hose (7) on second manifold gage set (1) to suction (low side)
evaporator service valve port (9).
(7)
Connect high pressure gage hose (8) on second manifold gage set (1) to discharge (high side)
evaporator service valve port (10).
(8)
Connect two center hoses (11) from manifold gage sets to tee (12).
(9)
Connect center hose (13) from tee (12) to recovery unit, vacuum pump, refrigerant or nitrogen as
required in the following servicing procedures.
3-30
Change 1
