System Description: Notes

Fig 1: Identifying Defroster Door And Heat Door (1 Of 2)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig 2: Identifying Defroster Door And Heat Door (2 Of 2)

Courtesy of AMERICAN HONDA MOTOR CO., INC.

The air conditioning system removes heat from the passenger compartment by circulating refrigerant through the system as shown.

Fig 3: Removing Heat From Passenger Compartment By Circulating Refrigerant

Courtesy of AMERICAN HONDA MOTOR CO., INC.

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 (DENSO ND-OIL 8) 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.
• Use a vacuum pump adapter which is equipped with a check valve to prevent the backflow of the vacuum pump oil.
• Separate the manifold gauge sets (pressure gauges, hoses, joints) for refrigerants R-12 and R-134a. Do not confuse them.