Staff Contact: Rupal Choksi
Related Standard 580
Standard 580 scope
Related Standard 700
This standard applies to non-condensable gas Purge Equipment for use with Low Pressure Centrifugal Liquid Chillers as defined in Section 3. This standard defines general equipment requirements, test methods and analysis techniques used to determine the performance rating for Purge Equipment that remove Non-Condensable Gases from Low Pressure Centrifugal Liquid Chillers. This Purge Equipment is typically used in conjunction with chillers which operate with at least a portion of the system below atmospheric pressure.
Standard 700 Scope
Related Standard 740
This standard specifies acceptable levels of contaminants (purity requirements) for fluorocarbon, hydrocarbon, and carbon dioxide refrigerants regardless of source and lists acceptable test methods. These refrigerants are as referenced in the ANSI/ASHRAE Standard 34 with Addenda:
Single-Component Fluorocarbon Refrigerants: R-11; R-12; R-13; R-22; R-23; R-32; R-113; R-114;
R-115; R-116; R-123; R-124; R-125; R-134a; R-141b; R-142b; R-143a; R-152a; R-218; R-227ea; R-236fa; R-245fa; R-1233zd(E); R-1234yf; R-1234ze(E); and R-1336mzz(Z).
Single Component Hydrocarbon Refrigerants: R-50; R-170; R-E170; R-290; R-600; R-600a; R-601; R-601a; R-610; R-1150; and R-1270.
Carbon Dioxide Refrigerant: R-744.
Zeotropic Blend Refrigerants: R-401A; R-401B; R-402A; R-402B; R-403A; R-403B; R-404A; R-405A; R-406A; R-407A; R-407B; R-407C; R-407D; R-407E; R-407F; R-407G; R407H; R-408A; R-409A; R-409B; R-410A; R-410B; R-411A; R-411B; R-412A; R-413A; R-414A; R-414B; R-415A; R-415B; R-416A; R-417A; R-417B; R-417C; R-418A; R-419A; R-419B; R-420A; R-421A; R-421B; R-422A; R-422B; R-422C; R-422D; R-422E; R-423A; R-424A; R-425A; R-426A; R-427A; R-428A; R-429A; R-430A; R-431A; R-434A; R-435A; R-437A; R-438A; R-439A; R-440A; R-442A; R-444A; R-444B; R-445A; R-446A; R-447A; R-447B; R-448A; R-449A; R-449B; R-449C; R-450A; R-451A; R-451B; R-452A; R-452B; R-452C; R-453A; R-454A; R-454B; R-454C; R-455A; R-456A; R-457A; R-458A; R-459A; R-459B; R-460A; R-460B; R-461A; and R-462A
Zeotropic Hydrocarbon Blend Refrigerants: R-432A; R-433A; R-433B; R-433C; R-436A; R-436B; R-441A; and R-443A.
Azeotropic Blend Refrigerants: R-500; R-502; R-503; R-507A; R-508A; R-508B; R-509A; R-510A; R-511A; R-512A; R-513A; R-513B; R-514A; R-515A; and R-516A.
Standard 740 scope
This standard applies to equipment for recovering and/or recycling non-flammable (safety Class I), as per ASHRAE Standard 34, single refrigerants, azeotropes, zeotropic blends, and their normal contaminants from refrigerant systems. This standard defines the test apparatus, test gas mixtures, sampling procedures and analytical techniques that will be used to determine the performance of refrigerant Recovery Equipment and Recovery/Recycling Equipment.
Guideline Q Scope
This guideline is applicable to all U.S Department of Transportation (DOT) non-refillable and refillable fluorocarbon refrigerant cylinders, as defined in Section 3, having water capacity greater than two pounds used to transport refrigerants sold in the United States.
Guideline N Scope
This guideline provides a means by which PMS colors can be assigned to printed materials, such as printed labels on refrigerant containers, for Refrigerants currently in use or newly developed Refrigerants, provided the Refrigerant is used in significant quantities as defined in this guideline. Colors should not be relied upon exclusively to determine the type of Refrigerant in the container.
This guideline also recommends a universal container color of light green gray (RAL 7044) for all Refrigerants.
Guideline K Scope
This guideline applies to cylinders with a maximum Service Pressure of 400 psig and ton tanks with a maximum Service Pressure of 500 psig for the receipt, storage and transportation of Recovered Non-flammable Fluorocarbon Refrigerants.
Where this guideline mentions regulations that are mandated by the United States Federal Government, the reference to the Federal regulation is provided.
AHRI White Paper: Reports of R-134a Contaminated with R-40 and Other Refrigerants
Companies who manufacture equipment, chemical compounds, or reclaim recovered refrigerant as outlined in the subsection scopes below:
Chemicals Subsection Scope
The subsection is open to companies who manufacture chemical compounds that have significant application in conjunction with the manufacture, operation, or service of air conditioning and refrigeration equipment, and containers and equipment used to transport, store, or process these chemicals.
Chemical compounds covered are limited to the following:
- Those used to transfer heat in the refrigeration cycles.
- Those used to transfer heat as secondary heat transfer liquids.
- Lubricating oils used in the refrigeration cycle.
- Those, including desiccants, used for absorption or adsorption of moisture or other contaminants in conjunction with the refrigeration system.
- Those used to absorb or release heat in absorption systems.
- Those used to clean or flush components of air conditioning and refrigeration systems.
- Water treatment chemicals for air conditioning and refrigeration systems.
Equipment is limited to the following specific items:
- Containers used for the distribution, storage, or recovery of refrigerants, plus container accessories such as valves and pressure relief devices.
- Equipment to recover and/or recycle chemical compounds addressed above.
- Non-Condensable gas purge equipment for use with low pressure centrifugal liquid chillers as defined in AHRI Standard 580.
Refrigerant Reclaimers Subsection Scope:
The subsection is open to companies who reclaim recovered refrigerants to the purity specifications outlined in the current version of AHRI Standard 700 (Specification for Fluorocarbon Refrigerants). The process can be used to reclaim customer-owned refrigerants or to reclaim used refrigerant that will subsequently be sold to third parties. Specifically excluded are refrigerants synthesized from virgin materials and products included in the scope of other ARI product sections