AHRI Low-GWP Alternative Refrigerants Evaluation Program
In response to environmental concerns raised by the use of high global warming potential (GWP) refrigerants, the Air-Conditioning, Heating, and Refrigeration Institute (AHRI) is launching an industry-wide cooperative research program to identify and evaluate promising alternative refrigerants for major product categories.
These include air conditioners, heat pumps, dehumidifiers, chillers, water heaters, ice makers, and refrigeration equipment. The program, referred to as the Low GWP Alternative Refrigerants Evaluation Program, or low GWP AREP, is strongly desired by the industry to assess the research needs, accelerate industry's response to environmental challenges raised by the use of high GWP refrigerants, and avoid duplicative work.
Literature Review
Reference List for low GWP Refrigerants Testing
The program consists of compressor calorimeter testing, system drop-in testing, soft-optimized system testing, and heat transfer testing. All tests other than heat transfer coefficient measurements are expected to be performed at participating companies' laboratories, using their own resources, at their own expense. The Low GWP AREP program will be managed by a technical committee reporting to the AHRI Executive Committee. The AHRI Research Department administers the Low-GWP AREP program, coordinates and disseminates information and reports among the participating companies and the observers. Representatives of interested organizations should contact AHRI's Research Department for further information. Questions should be directed to: Mr. Xudong Wang, Vice President of Research. To access the Low-GWP AREP Technical Committee meeting minutes, available only to AHRI members, please login and go to www.ahrinet.org/AREP.
Final Low-GWP AREP Test Reports
The AHRI Low-Global Warming Potential Alternative Refrigerants Evaluation Program is nearing the end of its second phase. All final test reports are listed below by category.
High Ambient
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062: Soft-Optimized System Test of Alternative Lower GWP Refrigerants in 1.5-ton Mini-Split Air Conditioning Units
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056: System Soft-optimization Tests of Refrigerant R-32, DR-5A, and DR-55 in a R-410A 4-ton Unitary Rooftop Heat Pump-Cooling Mode
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055: System Soft-optimization Tests of Refrigerant R-32 in a 6-ton Rooftop Packaged Air-Conditioner
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054: System Drop-In Test of Refrigerants DR-5A, R-32, and L-41-2 in a 2.5-Ton R-410A Heat Pump
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053: System Drop-In Test of Refrigerant Blend DR-55 in a Five-Ton R-410A Rooftop Packaged Unit
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052: System Drop-in Tests of Refrigerant Blends ARM-71a, DR-5A (R-454B), HPR2A, L-41-1 (R-446A), L-41-2 (R-447A) in a R-410A Split System Heat Pump
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047: System Drop-in Test of R-32 and Refrigerant Blends ARM-71a, HPR2A, L-41-2 and DR-5A in a Five-Ton R 410A Rooftop Packaged Unit
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046: System Drop-in Test of Refrigerants R32, DR-5A, L-41-1 and L-41-2 in a Water Chiller
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045: System Drop-in Test of Refrigerant Blends ARM-20b and N-40c (R-448A) in Automatic Commercial Ice Maker Designed for R404A
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042: System Soft-optimization Tests of Refrigerant R-32 in a 3-ton Split System Air-Conditioner
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032: System Soft-Optimized Test Of Refrigerant D2Y60 in Air Source Heat Pump
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020: System Drop-In Tests of Refrigerants R-32, D2Y-60, and L-41a in Air Source Heat Pump
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013: System Drop-In Tests of Refrigerant Blends L-20 and D52Y in Bus Air-Conditioning Unit Designed for R-407C
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012: System Drop-In Tests of Refrigerant Blends N-13a and AC5 in Bus Air-Conditioning Unit Designed for R-134a
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010: System Soft-Optimized Test of Refrigerant HFO-1234yf (R-1234yf) in a Split System Heat Pump (with Addendum)
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004: System Drop-in Test of Refrigerant R-32 in Split System Heat Pump (with Addendum)
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002: System Drop-In Test of L-40, L-41a and N-40b in Ice Machines
Refrigeration
Compressors
Air Conditioning & Heat Pumps
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063: System Soft-optimization Tests of Refrigerant R-32, DR-5A, and DR-55 in a R-410A 4-ton Unitary Rooftop Heat Pump-Heating Mode Performance
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062: Soft-Optimized System Test of Alternative Lower GWP Refrigerants in 1.5-ton Mini-Split Air Conditioning Units
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061: System Drop-in Tests of DR-3, L-20 (R-444B), and R-290 in Air-to Water Heat Pump-Heating Mode
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060: System Drop-in Tests of DR-5A, DR-55, L41-2 and R-32 in Water-To-Air Heat Pump
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057: System Soft-optimization Tests of Refrigerant R-32 in a 2.5 ton Rooftop Heat Pump
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056: System Soft-optimization Tests of Refrigerant R-32, DR-5A, and DR-55 in a R-410A 4-ton Unitary Rooftop Heat Pump-Cooling Mode
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055: System Soft-optimization Tests of Refrigerant R-32 in a 6-ton Rooftop Packaged Air-Conditioner
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054: System Drop-In Test of Refrigerants DR-5A, R-32, and L-41-2 in a 2.5-Ton R-410A Heat Pump
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053: System Drop-In Test of Refrigerant Blend DR-55 in a Five-Ton R-410A Rooftop Packaged Unit
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052: System Drop-in Tests of Refrigerant Blends ARM-71a, DR-5A (R-454B), HPR2A, L-41-1 (R-446A), L-41-2 (R-447A) in a R-410A Split System Heat Pump
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047: System Drop-in Test of R-32 and Refrigerant Blends ARM-71a, HPR2A, L-41-2 and DR-5A in a Five-Ton R 410A Rooftop Packaged Unit
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044: System Drop-in Tests of Refrigerant R-32 in Single Packaged Vertical Heat Pump (SPVH)
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043: System Drop-in Tests of Refrigerants L-41-1, L-41-2, and R-32 in Water-to-Water Heat Pump
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042: System Soft-optimization Tests of Refrigerant R-32 in a 3-ton Split System Air-Conditioner
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032: System Soft-Optimized Test Of Refrigerant D2Y60 in Air Source Heat Pump
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031: System Drop-in Test of Refrigerant R-32 in Split Air-conditioning System
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027: System Drop-In Test of Refrigerant Blend ARM70a and DR-5 in An Air to Water Heat Pump
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023: System Soft-Optimized Test of Refrigerant L-41a in Air Source Heat Pump
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022: System Drop-in Testing of R-410A Replacements in Split System Heat Pump
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020: System Drop-In Tests of Refrigerants R-32, D2Y-60, and L-41a in Air Source Heat Pump
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016: System Drop-in Test of Refrigerant Blend R-32/R-134a (95/5), R-32, and DR-5 in Water-To-Water Heat Pump
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015: System Drop-In Test of Refrigerant R-32 in a VRF Multi-split Heat Pump
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013: System Drop-In Tests of Refrigerant Blends L-20 and D52Y in Bus Air-Conditioning Unit Designed for R-407C
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012: System Drop-In Tests of Refrigerant Blends N-13a and AC5 in Bus Air-Conditioning Unit Designed for R-134a
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010: System Soft-Optimized Test of Refrigerant HFO-1234yf (R-1234yf) in a Split System Heat Pump (with Addendum)
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005: Soft-optimized System Test of Refrigerant R-32 in 3-ton Split System Heat Pump
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004: System Drop-in Test of Refrigerant R-32 in Split System Heat Pump (with Addendum)
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003: System Drop-In Test of R-32/R-152a (95/5) in Air Source Heat Pump
Chillers
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046: System Drop-in Test of Refrigerants R32, DR-5A, L-41-1 and L-41-2 in a Water Chiller
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025: System Drop-in Test of R134a Alternative Fluids R-1234ze(E) and D4Y in a 200 RT Air-Cooled Screw Chiller
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024: Compressor Calorimeter Test of Refrigerant DR-5 in a R-410A Scroll Compressor
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007: System Drop-In Tests of R134a Alternative Refrigerants (ARM-42a, N-13a, N-13b, R-1234ze(E), and OpteonTM XP10) in a 230-RT Water-Cooled Water Chiller
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006: System Drop-in Tests of R-22 Alternative Fluids (ARM-32a, DR-7, L-20, LTR4X, LTR6A, and D52Y) in a 5-RT Air-Cooled Water Chiller (Cooling Mode)
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001: System Drop-in Test of R-410A Alternative Fluids (ARM-32a, ARM-70a, DR-5, HPR1D, L-41a, L-41b, and R-32) in a 5-RT Air-Cooled Water Chiller (Cooling Mode)
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