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Description
Outline
The air conditioner system delivers cooled air into the passenger companment by circulating retrigerant through the sys-
tem as shown below.
High-temperature/
H ig h-tem peratu rel
Traps debris
High-temperature/
high-pressure gas
high-pressure liquid and removes high-pressure liquid
Suction and compression
Radiation of heat
moisture
covpnEsson -tl4con
oetsen -rr{
REcEIvER/DRvER
M o r e l i q u i d i f i e d
low-pressure vapor
Absorption of heat
Less moisturized
low-pressure vapor
EVAPORATOR
-TEXPANS|ON
VALVE
EVAPORATOR
CONDENSOR
This vehicle uses HFC-134a (R-134a) refrigerant which does not contain chlorofluorocarbons. Pay attention to the follow-
ing service items:
. Do not mix refrigerants CFC-12 (R-12) and HFC-134a (R-134a). They are not compatible.
.
Use only the recommended polyalkyleneglycol (PAG) refrigerant oil (ND-OIL 8: P/N 38897-PR7-A01AH
or 38899-PR7-
A01) designed for the R-134a compressor. Intermixing the recommended (PAG) refrigerant oil with any other refriger-
ant oil will result in compressor failure.
. All AVC system parts (compressor, discharge line, suction line. evaporator, condenser, receiver/dryer, expansion valve.
O-rings for joints) have to be proper for refrigerant R-134a. Do not confuse with R-12 parts.
. Use a halogen gas leak detector designed for refrigerant R-134a.
. R-12 and R-134a refrigerant servicing equipment are not interchangeable. Use only a Recovery/Recycling/Charging
System that is U.L.-listed and is certified to meet the requirements of SAE J2210 to service R-134a air conditioning sys-
tems.
. Always recover the refrigerant R-134a with an approved Recovery/Recycling/Charging
System before disconnecting
any Ay'C fitting.
22-6
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Table of Contents
Troubleshooting
