Acura RSX Honda Integra. Manual - part 401
21-11
System Description
EVAPORATOR
EXPANSION VALVE
RECEIVER/DRYER
A/C COMPRESSOR
A/C CONDENSER
A/C PRESSURE SWITCH
BLOWER FAN
EVAPORATOR
A/C COMPRESSOR RELIEF VALVE
HIGH PRESSURE VAPOR
HIGH PRESSURE LIQUID
LOW PRESSURE LIQUID
LOW PRESSURE VAPOR
EVAPORATOR TEMPERATURE
SENSOR
THERMAL PROTECTOR
The air conditioning system removes heat from the passenger compartment by circulating refrigerant through the
system as shown below.
This vehicle uses HFC-134a (R-134a) refrigerant which does not contain chlorofluorocarbons. Pay attention to the
following 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 (KEIHIN SP-10) designed for the R-134a A/C
compressor. Intermixing the recommended (PAG) refrigerant oil with any other refrigerant oil will result in A/C
compressor failure.
• All A/C system parts (A/C compressor, discharge line, suction line, evaporator, A/C condenser, receiver/dryer,
expansion valve, O-rings for joints) are designed for refrigerant R-134a. Do not exchange 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
station that is U.L.-listed and is certified to meet the requirements of SAE J2210 to service the R-134a air
conditioning systems.
• Always recover the refrigerant R-134a with an approved recovery/recycling/charging station before disconnecting
any A/C fitting.
(cont’d)
(Meters the required
amount of refrigerant
into the evaporator)
(Traps debris, and
removes moisture)
(Suction and compression)
(Radiation of heat)
When the refrigerant is below
196 kPa (2.0 kgf/cm , 28 psi)
or above 3,140 kPa (32 kgf/cm ,
455 psi), the A/C pressure
switch opens the circuit to
the A/C switch and stops the
air conditioning to protect the
A/C compressor.
(Absorption of heat)
(Relieves pressure at the A/C compressor
when the pressure is too high)
(Opens the A/C compressor clutch circuit
when the A/C compressor temperature
becomes too high)
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