P.o.a. Valve - Pontiac FIREBIRD 1972 Service Manual

CUSTOM AIR CONDITIONING 1A-87
EVAPORATOR
CORE A N D CASE
P.O.A. VALVE
REMOVE AND REPLACE
-
ALL
1. Depressurize system.
Fig. 1A-104 G Series P.O.A. Valve and A/C Relays
2. Disconnect oil bleed fitting.
3. Disconnect equalizer fitting.
4. Disconnect inlet and outlet fittings.
5. Remove valve from bracket. If valve is not immedi-
ately replaced, cap openings to prevent entry of dirt
and moisture.
6. Replace by reversing above procedure, using new 0-
ring seals coated with clean compressor oil.
7. Evacuate and charge system.
For P.O.A. Valve installation, refer to Figs. 1A-103
(B
Series), 1A-104 (G Series), 1A-105 (A Series), 1A-106 (F
Series) and 1A-107 and 1A-107A (X Series).
EXPANSION VALVE AND SEALS
REMOVE AND REPLACE
1. Depressurize system.
2. Remove thermo bulb from insulation at evaporator
outlet.
3. Disconnect equalizer line at P.O.A. valve.
4. Remove inlet and outlet fittings of valve.
5. If valve is n~t'immediatel~ replaced, cap openings to
prevent entry of dirt and moisture.
.6. Replace by reversing above procedure using new 0-
,
ring seals coated with compressor oil.
7. Evacuate and charge system.
CONDENSER AND SEALS
B SERIES
-
REMOVE AND REPLACE