S0605050K
Page 19
Air Conditioner
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5. The new refrigerant oil (PAG type) has a high moisture absorption characteristic. When the
refrigerant system vacuum seal has been broken, immediately plug up all openings to prevent
moisture from entering into the system.
6. When joining unions which use O-ring seals, lightly coat O-rings with refrigerant oil. Be careful not to
drip oil on the threads of the nut.
7. Be certain the O-rings are seated properly on the refrigerant line lip. Always use new O-rings when
reassembling parts. Do not reuse old O-rings.
8. Use a vacuum pump to evacuate refrigerant system of air.
9. When charging the refrigerant system with the engine running, do not open the high pressure valve
on the manifold gauge as the reverse flow of high pressure refrigerant will rupture the hose.
10. When releasing the high pressure hose after completing the charging process, quickly disconnect the
hose to minimize refrigerant released to the air.
REPAIR AND REPLACEMENT PROCEDURE
1. Work Procedure.
A. Before repairing or replacing any refrigerant components first, return all refrigerant oil to the
compressor and perform recovery procedures.
2. Operating Condition.
A. Run engine at maximum engine speed.
B. Select "HI" blower fan speed and select A/C switch to "ON."
C. Set the temperature control switch for maximum cooling and leave running for approximately 20
minutes.
NOTE:
The manifold gauge dial pointer can vary depending on the outdoor temperatures.
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