SAE J1661-2011
Procedure for Retrofitting CFC-12 (R-12) Mobile Air-Conditioning Systems to HFC-134a (R-134a)

Standard No.

SAE J1661-2011

Release Date

2011

Published By

Society of Automotive Engineers (SAE)

Latest

SAE J1661-2011

Scope

The purpose of this SAE Recommended Practice is to provide a service procedure for retrofitting a CFC-12 (R-12) system to HFC-134a (R-134a) while preserving performance and integrity of the air-conditioning (A/C) system. The steps outlined in this procedure are complete when combined with good service practices and the vehicle manufacturer's recommendations (if available) for retrofitting their models. Separate service equipment, for CFC-12 (R-12) and HFC-134a (R-134a), including refrigerant recovery/ recycle (R/R), service manifolds, vacuum pumps, and charging equipment shall be used to preserve the purity of the refrigerants and the mobile A/C systems. This procedure will minimize release of refrigerant to the atmosphere, and will preserve the integrity of the recycled CFC-12 (R-12) and HFC-134a (R-134a) supplies. This document applies to air conditioning systems used to cool the passenger compartment of the automobiles, light trucks, and other vehicles with similar CFC-12 (R-12) systems. Due to technical advancements in recent years, this procedure is recommended for common vehicle platforms produced in the mid- 1980s and later. Vehicles produced before this time period may require additional retrofit requirements. A/C systems used on mobile vehicles for refrigerated cargo that have hermetically sealed systems are not covered by this document. This Document is complete only when combined with the requirements of SAE J1657 "Selection Criteria for Retrofit Refrigerants to Replace CFC-12 (R-12) in Mobile Air-Conditioning Systems."

SAE J1661-2011 Referenced Document

• SAE J1628-1998 Technician Procedure for Using Electronic Refrigerant Leak Detectors for Service of Mobile Air-Conditioning Systems
• SAE J1657-2011 Selection Criteria for Retrofit Refrigerants to Replace CFC-12 (R-12) in Mobile Air Conditioning Systems
• SAE J1660-2011 Fittings and Labels for Retrofit of CFC-12 (R-12) Mobile Air-Conditioning Systems to HFC-134a (R-134a)
• SAE J1771-1998 Criteria for Refrigerant Identification Equipment for Use with Mobile Air-Conditioning Systems
• SAE J1989-1998 Recommended Service Procedure for the Containment of CFC-12 (R-12)
• SAE J1990-1999 Recovery and Recycle Equipment for Mobile Automotive Air-Conditioning Systems
• SAE J1991-1999 Standard of Purity for Use in Mobile Air-Conditioning Systems
• SAE J2084-1993 Aerodynamic Testing of Road Vehicles-Testing Methods and Procedures
• SAE J2099-2011 Standard of Purity for Recycled R-134a (HFC-134a) and R-1234yf (HFO-1234yf) for Use in Mobile Air-Conditioning Systems
• SAE J2196-1997 Service Hose for Automotive Air Conditioning
• SAE J2197-1997 HFC-134a (R-134a) Service Hose Fittings for Automotive Air-Conditioning Service Equipment
• SAE J2209-1999 CFC-12 (R-12) Refrigerant Recovery Equipment for Mobile Automotive Air-Conditioning Systems
• SAE J2210-1999 HFC-134a (R-134a) Recovery/Recycling Equipment for Mobile Air-Conditioning Systems
• SAE J2211-1998 Recommended Service Procedure for the Containment of HFC-134a (R-134a)
• SAE J639-2011 Safety Practices for Mechanical Vapor Compression Refrigeration Equipment or System Used to Cool Passenger Compartment of Motor Vehicles*， 2011-12-01 Update

SAE J1661-2011 history

• 2011 SAE J1661-2011 Procedure for Retrofitting CFC-12 (R-12) Mobile Air-Conditioning Systems to HFC-134a (R-134a)
• 1998 SAE J1661-1998 Procedure Retrofitting CFC-12 (R-12) Mobile Air-Conditioning Systems to HFC-134a (R-134a)
• 1993 SAE J1661-1993 Procedure for Retrofitting CFC-12 (R12) Mobile Air Conditioning Systems to HFC-134a (R134a)@ Recommended Practice