Newer Version Available

Safety Standards for Motor Vehicle Refrigerant Vapor Compression Systems

Ground Vehicle Standard
J639_201102
Revised

Published February 04, 2011 by SAE International in United States

Sector:

Automotive

Issuing Committee:

Interior Climate Control Steering Committee

Language: English

Scope

This SAE Standard applies to refrigerant vapor compression systems that provide cooling and/or heating for passenger cars, light trucks and commercial vehicles (on and off road) that use automotive type mobile air conditioning (MAC) systems. Large trucks, buses and other vehicles that do not use typical automotive a/c systems or use refrigerants not listed in this document are not covered by this standard. This standard covers any vehicle with a MAC system using a belt or electric motor driven compressor.

This document provides standards for design, assembly, test and service of MAC systems to minimize environmental, health and safety impacts. Also included are cautionary statements for the service industry to alert technicians to the inadvisability and possible health or safety effects associated with venting refrigerant during service. It is not intended to restrict the use, or further development, of other types of refrigeration systems for mobile air conditioning applications. This document may be amended or additional safety standards created should other systems become practical. This document addresses only HFC-134a (R-134a), carbon dioxide (R-744), and HFO-1234yf (R-1234yf) refrigerants. To prevent system contamination all refrigerants used in mobile air conditioning vapor compression systems require unique service fittings and service equipment. The unique service fittings are intended to eliminate the potential for system refrigerant cross-contamination during service activity.

CFC-12 (R-12) is no longer in use in new MAC systems. The service fitting description is maintained as a reference for older vehicles still in use. When retrofitting an R-12 system to use R-134a or when removing R-12 (vehicle disposal) use service equipment designed for R-12 and certified to meet the requirements of SAE J1990 (R-12 recovery and recycle equipment).

HFC-152a is an A2 flammable refrigerant as classified by ASHRAE 34 and should be used only with a secondary loop application. However, until MAC systems are developed to use R-152a (HFC-152a), no SAE Standards for system design, service equipment or service procedures have been established. The R-152a service fittings described within this Standard were established as part of the industries evaluation of replacement refrigerants and are maintained for future design guidance and to prevent potential refrigerant cross contamination.

Rationale

The SAE Interior Climate Control Standards Committee has been involved with the mobile air conditioning industry in developing alternate low GWP replacement refrigerants. The revisions in this document cover engineering guidelines and establishing specifications for mobile air conditioning systems using current and alternate replacement refrigerants. R-1234yf is added here for the first time.

Reference

Number	Title
AHRI700-2006	This document is not part of the subscrption.
ANSI/UL969-1991	This document is not part of the subscrption.
ASHRAE34	This document is not part of the subscrption.
ISO/CD13043	This document is not part of the subscrption.
ISO817	This document is not part of the subscrption.
J1627	This document is not part of the subscrption.
J1627_201104	Performance Criteria for Electronic Refrigerant Leak Detectors
J1628_201108	Technician Procedures for Refrigerant Leak Detection in Service of Mobile Air Conditioning Systems
J1628_201407	Technician Procedures for Refrigerant Leak Detection in Service of Mobile Air Conditioning Systems
J1657	This document is not part of the subscrption.
J1657_201104	Selection Criteria for Retrofit Refrigerants to Replace CFC-12 (R-12) in Mobile Air-Conditioning Systems
J1658_201501	Alternate Refrigerant Consistency Criteria for Use in Mobile Air-Conditioning Systems
J1659	This document is not part of the subscrption.
J1659_201111	Vehicle Testing Requirements for Replacement Refrigerants for CFC-12 (R-12) Mobile Air-Conditioning Systems
J1660	This document is not part of the subscrption.
J1660_201104	Fittings and Labels for Retrofit of CFC-12 (R-12) Mobile Air-Conditioning Systems to HFC-134a (R-134a)
J1661	This document is not part of the subscrption.
J1661_201104	Procedure Retrofitting CFC-12 (R-12) Mobile Air-Conditioning Systems to HFC-134a (R-134a)
J1662	This document is not part of the subscrption.
J1662_201111	Compatibility of Retrofit Refrigerants with Air-Conditioning System Materials
J1732	This document is not part of the subscrption.
J1732_201111	HFC-134a (R-134a) Refrigerant Recovery Equipment for Mobile Automotive Air-Conditioning Systems
J1739_202101	Potential Failure Mode and Effects Analysis (FMEA) Including Design FMEA, Supplemental FMEA-MSR, and Process FMEA
J1771	This document is not part of the subscrption.
J1771_201105	Criteria for Refrigerant Identification Equipment for Use with Mobile Air-Conditioning Systems
J1989	This document is not part of the subscrption.
J1989_201105	Recommended Service Procedure for the Containment of CFC-12 (R-12)
J1990	This document is not part of the subscrption.
J1990_201105	Recovery and Recycle Equipment for Mobile Automotive Air-Conditioning Systems
J1991	This document is not part of the subscrption.
J1991_201108	Standard of Purity for Use in Mobile Air-Conditioning Systems
J2064_201508	Coupled Automotive Refrigerant Air-Conditioning Hose Assemblies
J2099	This document is not part of the subscrption.
J2099_201204	Standard of Purity for Recycled R-134a (HFC-134a) and R-1234yf (HFO-1234yf) for Use in Mobile Air-conditioning Systems
J2196	This document is not part of the subscrption.
J2196_201111	Service Hose for Automotive Air Conditioning
J2197	This document is not part of the subscrption.
J2197_201108	Hfc-134a (R-134a) Service Hose Fittings for Automotive Air-Conditioning Service Equipment
J2209	This document is not part of the subscrption.
J2209_201108	CFC-12 (R-12) Refrigerant Recovery Equipment for Mobile Automotive Air-Conditioning Systems
J2211	This document is not part of the subscrption.
J2211_201111	Recommended Service Procedure for the Containment of HFC-134a (R-134a)
J2296_201206	Retest of Refrigerant Container
J2296_202302	Retest of Refrigerant Container
J2297	This document is not part of the subscrption.
J2298	This document is not part of the subscrption.
J2298_201108	Ultraviolet Leak Detection: Procedure for Use of Refrigerant Leak Detection Dyes for Service of Mobile Air-Conditioning Systems
J2299	This document is not part of the subscrption.
J2299_201201	Ultraviolet Leak Detection: Performance Requirements for Fluorescent Refrigerant Leak Detection Dye Injection Equipment for Aftermarket Service of Mobile Air-Conditioning Systems
J2670	This document is not part of the subscrption.
J2683_201603	Refrigerant Purity and Container Requirements for Carbon Dioxide (CO2 R-744) Used in Mobile Air-Conditioning Systems
J2727_201202	Mobile Air Conditioning System Refrigerant Emission Charts for R-134a and R-1234yf
J2727_202011	Mobile Air Conditioning System Refrigerant Emission Charts for R-134a, R-1234yf, and R-152a
J2765_201707	Procedure for Measuring System COP [Coefficient of Performance] of a Mobile Air Conditioning System on a Test Bench
J2766_201908	Life Cycle Analysis to Estimate the CO2-Equivalent Emissions from MAC Operation
J2772_201909	Measurement of Passenger Compartment Refrigerant Concentrations Under System Refrigerant Leakage Conditions
J2773_201702	Standard for Refrigerant Risk Analysis for Mobile Air Conditioning Systems
J2776	This document is not part of the subscrption.
J2776_201301	Refrigerant Purity and Container Requirements for New HFC-134a 1,1,1,2 - Tetrafluoroethane Refrigerant Used in Mobile Air-Conditioning Systems
J2788_201301	HFC-134a (R-134a) Recovery/Recycle/Recharging Equipment for Mobile Air-Conditioning Systems
J2788_202001	HFC-134a (R-134a) Recovery/Recycle/Recharging Equipment for Mobile Air-Conditioning Systems
J2791_201301	HFC-134a Refrigerant Electronic Leak Detectors, Minimum Performance Criteria
J2810_201603	HFC-134a (R-134a) Refrigerant Recovery Equipment for Mobile Automotive Air-Conditioning Systems
J2843_201202	R-1234yf [HFO-1234yf] Recovery/Recycling/Recharging Equipment for Flammable Refrigerants for Mobile Air-Conditioning Systems
J2843_201907	R-1234yf (HFO-1234yf) Recovery/Recycling/Recharging Equipment for Flammable Refrigerants for Mobile Air-Conditioning Systems
J2844	This document is not part of the subscrption.
J2844_201110	R-1234yf (HFO-1234yf) New Refrigerant Purity and Container Requirements for Use in Mobile Air-Conditioning Systems
J2845_201110	R-1234yf [HFO-1234yf] and R-744 Technician Training for Service and Containment of Refrigerants Used in Mobile A/C Systems
J2845_202111	R-12 (CFC-12), R-134a (HFC-134a), R-1234yf (HFO-1234yf), R-744, and R-152a (HFC-152a) Technician Training for Service and Containment of Refrigerants Used in Mobile A/C Systems
J2851_201202	Recovery Equipment for Contaminated Refrigerant from Mobile Automotive Air Conditioning Systems
J2851_201502	Recovery Equipment for Contaminated R-134a or R-1234yf Refrigerant from Mobile Automotive Air Conditioning Systems
J2888_201201	R-1234yf Service Hose, Fittings and Couplers for Mobile Refrigerant Systems Service Equipment
J2888_201902	R-1234yf Service Hose, Fittings and Couplers for Mobile Refrigerant Systems Service Equipment
J2911_201612	Procedure for Certification that Requirements for Mobile Air Conditioning System Components, Service Equipment, and Service Technician Training Meet SAE J Standards
J2912_201110	Performance Requirements for R-134a and R-1234yf Refrigerant Diagnostic Identifiers for Use with Mobile Air Conditioning Systems
J2912_201311	Performance Requirements for R-134a and R-1234yf Refrigerant Diagnostic Identifiers (RDI) for Use with Mobile Air Conditioning Systems
J2913_201610	R-1234yf [HFO-1234yf] Refrigerant Electronic Leak Detectors, Minimum Performance Criteria
J2927_201206	R-1234yf Refrigerant Identifier Installed In Recovery and Recycling Equipment for Use With Mobile A/C Systems
J2927_201708	R-1234yf Refrigerant Identifier Installed In Recovery and Recycling Equipment for Use With Mobile A/C Systems
J51_201504	Refrigerant 12 Automotive Air-Conditioning Hose

Revisions

9 versions available

Revision History*

2020-11-09	\|	J639_202011
2011-12-19	\|	J639_201112
2011-02-04	\|	J639_201102
2005-06-20	\|	J639_200506
1999-03-01	\|	J639_199903
1994-04-01	\|	J639_199404
1991-11-01	\|	J639_199111
1987-01-01	\|	J639_198701
1981-10-01	\|	J639_198110

* Redlines comparisons are available for those standards listed in the Revision History that contain a radio button. A redline comparison of the current version against a revision is accomplished by selecting the radio button next to the standard and then selecting 'compare'. At this time, Redline versions only exist for some AMS standards. SAE will continue to add redline versioning with ongoing updates to SAE MOBILUS.

Technical Paper	Experimentally Validated Effects of Separation of Liquid and Vapor on Performance of Condenser and System
Journal Article	Efficiency Improvement by Separation of Vapor and Liquid in Condenser Headers
Ground Vehicle Standard	Performance Criteria for Electronic Refrigerant Leak Detectors

Citation
	(MAC / WIN)
	(MAC / WIN)
	(MAC / WIN)
	(MAC / WIN)

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Safety Standards for Motor Vehicle Refrigerant Vapor Compression Systems

Scope

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Reference

Revisions

Revision History*