A/C - Converting R-12 Systems to R-134a: Overview

BULLETIN NO.
95-020

ISSUE DATE
JUNE 26, 1995

MODEL
ALL

APPLICABLE TO
See VEHICLES AFFECTED

FILE UNDER
ACCESSORY

Converting R-12 A/C Systems to R-134a

BACKGROUND

Because of environmental concerns, production of R-12 refrigerant is being phased out. Honda is making retrofit kits available to convert systems that currently use R-12 refrigerant to R-134a refrigerant use.

VEHICLES AFFECTED

ACCORD:
1986 - 89 - With Nippondenso compressor only
1990 - 93 - All

CIVIC:
1985 - 87 - With Sanden compressor only
1988 - 91 - With Sanden compressor only
1992 - 93 - All

PRELUDE:
1990 - 92 - With Sanden compressor only

PREPARATION

Before retrofitting the A/C system to use R-134a, test its performance and inspect all components.

^ If the system is not cooling correctly, determine the cause (restriction, refrigerant leak, system contamination, etc.) and repair it before continuing.

^ If the system is not fully charged, determine if there are any leaks and repair them before continuing.

^ If the compressor is making noise, repair or replace it before continuing. Refer to Parts Information Bulletin A95-0005 for the proper components.

^ If the system has been open to the atmosphere, replace the receiver/dryer.

PARTS INFORMATION
R-134a retrofit kit A:

1988 - 93 Accord
P/N 38020-SM4-A1AH, H/C 4729828

1986 - 87 Accord
P/N 38020-SM4-A2AH, H/C 4729836

1988 - 93 Civic
P/N 38020-SM4-A1AH, H/C 4729828

1985 - 87 Civic
P/N 38020-SM4-A2AH, H/C 4729836

1990-92 Prelude
P/N 38020-SM4-A1AH, H/C 4729828

Receiver line "A" for 1990 - 91 Accord:
P/N 80341-SM1-A18, H/C 4052049

WARRANTY CLAIM INFORMATION

None; this retrofit is considered to be customer pay.