Residential A/C

R-22 Replacement in Residential Air Conditioning

New residential air conditioning units can only use R-410A, but older units running R-22 still exist. Talk to contractors about retrofitting R-22 residential A/C units with Genetron 422D or 407C.

Supplies of R-22 are set to be reduced every year until 2020 when R-22 will no longer be available. Review Honeywell’s non-ozone-depleting alternatives to determine which R-22 replacement is right for you.

Product Name ASHRAE # Product Description
Genetron® 422D R-422D A long-term non-ozone-depleting HFC-based refrigerant for replacement of R-22 in air conditioning systems. Genetron 422D is a blended refrigerant suitable for direct expansion evaporators. Do not use in systems that employ flooded evaporators.
Genetron® 407C R-407C A long-term, non-ozone depleting replacement for R-22 in various air-conditioning applications as well as in positive displacement refrigeration systems. For new equipment and retrofits. Not recommended for use in chillers with a flooded evaporator.
Genetron® AZ-20® R-410A Widely accepted to replace R-22 in air conditioning and refrigeration applications. For new equipment – not for retrofits.
Genetron® ST-20 Flush Genetron ST-20 Flush uses patented technology to provide excellent cleaning of refrigerant and A/C systems in a very efficient and cost-effective manner. A carefully selected boiling point assures the solvent is easily removed from the system. Genetron ST-20 Flush is effective for use on all HCFC and HFC systems and is compatible with current materials of construction including common seals and gasket materials.
Genetron® 22 R-22 As a refrigerant, operates with higher system pressures but low compressor displacement. Popular in residential, commercial and industrial applications.
R-22 Allocation Summary
R-22 Allocation: Find the Right Refrigerant Solution Download
Genetron General Information
Overview brochure Download
R-22 phaseout and retrofit options for Honeywell Genetron® refrigerants Download
R-22 retrofit options for A/C and refrigeration refrigerants Download
Features and benefits of Honeywell Genetron 422D as an R-22 retrofit refrigerant in A/C applications Download
Guide to retrofitting A/C systems from R-22 to R-422D or R-407C Download
Mise a niveau Systemes de refrigeration et climatisation au R-22 Download
Technical Specifications
Genetron 407C Technical Brochure -Properties, Uses, Storage, and Handling Download
Genetron 422D Technical Brochure -Properties, Uses, Storage, and Handling Download
Genetron AZ-20 Technical Brochure -Properties, Uses, Storage, and Handling Download
Genetron ST-20 Flush – Properties, Uses, Storage, and Handling Download
Genetron 407C One-Page Information Sheet Download
Customer Case Studies
Genetron ST-20 Flush Case Study – Aabbott Ferraro
Other Information
Line Set Cleaning Procedure for Retrofits Using Genetron ST-20 Flush Download
System Cleanup and Repair Procedure with Genetron ST-20 Flush Download
Genetron 410a/AZ-20 and R-22 Pressure Temperature Chart Download

Watch our training video to learn how easy it is to retrofit a residential A/C unit from R-22 to Genetron 422D. Download our retrofit guidelines for step-by-step retrofit instructions. Download our PT Chart apps for iOs and Android platforms for a quick way to calculate subcool and superheat values and set a control.

iPad / iPhone App: Honeywell Pressure Temperature Chart app
Android App: Honeywell Pressure Temperature Chart app
Genetron® 422D: The No-Oil-Change R-22 Retrofit Solution for A/C R-22 Retrofit eLearning View
Retrofit Guidelines
Guide to retrofitting A/C systems from R-22 to R-422D or R-407C Download
Genetron All-Product Video View