Brand guide · United States · checked October 19, 2026
American Standard heat pumps
American Standard is part of the Trane Technologies family. ENERGY STAR lists 124 American Standard outdoor models certified for the US, 69 of them cold-climate, and its best certified pairing heats at a COP of 2.54 at 5°F.
American Standard at a glance
- Who owns it
- Trane Technologies plc, through Trane U.S. Inc., whose warranty documents cover both Trane and American Standard. No ownership change in 2024-2026.
- Sister brands
- Trane, Ameristar, RunTru, OxBox, American Standard/Mitsubishi Electric (METUS joint venture)
- Headquarters
- Swords, Ireland (Trane Technologies plc)
- How it's sold
- Contractor-installed
- Price tier
- Premium. Trane Technologies describes American Standard as 'Premium heating and cooling systems' and its sister Ameristar as 'Affordable, dependable heating and cooling systems' (tranetechnologies.com brands page). Lines run from Silver to Platinum. No independent installed-price data was verified.
- What it makes
- ducted central, ductless mini-split, ducted mini-split, packaged
- Names on ENERGY STAR's list
- American Standard, Ameristar, RunTru (certified by Trane and American Standard Heating and Air Conditioning)
Product lines
The current residential heat pump lines we found on American Standard's own pages, with the low-temperature claim in the maker's words. 5 of 8 are sold as cold-climate.
| Line | Type | Cold-climate | Maker's low-temperature claim | Refrigerant |
|---|---|---|---|---|
| AccuComfort Platinum 20 Cold Climate Heat Pump with All Weather | ducted central | Yes | 'maintain 100% heating capacity down to 5°F' and 'continue operating in temperatures as low as -20°F' (Trane Technologies, Oct 2026) | — |
| AccuComfort Variable Speed Platinum 20 Heat Pump (5A6V0) | ducted central | No | No low-temperature figure published | R-454B |
| Platinum 19 Multi-Speed Low Profile Cold Climate Heat Pump (5HCL9) | ducted central | Yes | 'provides 100% of your heat down to 5°F' (American Standard product page) | R-454B |
| Gold 17 Multi-Speed Low Profile Cold Climate Heat Pump (5HCL6) | ducted central | Yes | 'provides 100% of your heat down to 5°F' (American Standard product page) | R-454B |
| Silver 16 Multi-Speed Low Profile Cold Climate Heat Pump (5HCL5) | ducted central | Yes | American Standard's heat pump page says its low-profile cold climate heat pumps give '100% heating capacity down to 5°F'; no figure on the model page itself | R-454B |
| Gold 17 Multi-Speed Heat Pump (5A6H7) | ducted central | No | No low-temperature figure published | R-454B |
| Silver 16 Heat Pump (5A6H6) | ducted central | No | No low-temperature figure published | R-454B |
| American Standard/Mitsubishi Electric ductless mini-splits (Hyper-Heating INVERTER models) | ductless mini-split | Yes | Hyper-Heating models 'can provide heating in temperatures as low as -13°F' while 'providing 100% heating capacity at 5°F' (American Standard ductless page) | — |
Certified models with the best cold-weather numbers
From ENERGY STAR's list for the US (updated October 19, 2026): each row is one outdoor unit with its best certified pairing. 84 of 124 American Standard outdoor models use R-454B or R-32; the tables show those.
Mini-splits and multi-splits (31 models)
| Outdoor / indoor model | Size | Heat at 5°F | COP at 5°F | HSPF2 | SEER2 | Refrigerant | AHRI # |
|---|---|---|---|---|---|---|---|
| M5THS2312A11NA* M5MHWUN12B1N0A* 23U Series | 12,600 BTU/h 1-ton | 9,100 BTU/h 72% of rated | 2.10 | 10.0 | 24.0 | R-454B ENERGY STAR Cold Climate | 218067095 |
| M5THM2318A12NA* 23U Multi | 20,000 BTU/h 1.5-ton | 16,000 BTU/h 80% of rated | 2.00 | 10.5 | 24.0 | R-454B ENERGY STAR Cold Climate | 218067086 |
| M5THM2336A14NA* 23U Multi | 36,000 BTU/h 3-ton | 26,000 BTU/h 72% of rated | 2.00 | 10.0 | 22.5 | R-454B ENERGY STAR Cold Climate | 218067088 |
| M5THM2342A15NA* 23U Multi | 42,000 BTU/h 3.5-ton | 30,000 BTU/h 71% of rated | 2.00 | 10.0 | 22.0 | R-454B ENERGY STAR Cold Climate | 218067089 |
| M5THM2327A13NA* 23U Multi | 28,000 BTU/h 2.5-ton | 19,800 BTU/h 71% of rated | 2.00 | 10.5 | 24.0 | R-454B ENERGY STAR Cold Climate | 218067087 |
| M5THS2309A11NA* M5MHWUN09B1N0A* 23U Series | 10,000 BTU/h 1-ton | 7,100 BTU/h 71% of rated | 1.90 | 9.5 | 23.0 | R-454B ENERGY STAR Cold Climate | 218067094 |
Central (ducted) split systems (93 models)
| Outdoor / indoor model | Size | Heat at 5°F | COP at 5°F | HSPF2 | SEER2 | Refrigerant | AHRI # |
|---|---|---|---|---|---|---|---|
| 5A6H6060A1 5TEMCD07AV51+TDR+TSTAT Silver 16 | 52,500 BTU/h 4.5-ton | 27,800 BTU/h 53% of rated | 2.54 | 8.1 | 15.2 | R-454B | 218109381 |
| N5HP5060A1 A5AHV007A1D3+TDR+TSTAT Bronze 15 | 51,000 BTU/h 4.5-ton | 28,200 BTU/h 55% of rated | 2.50 | 8.1 | 15.2 | R-454B | 218470637 |
| 5A6H5060A1 5TEMCD07AV51+TDR+TSTAT Silver 15 | 52,500 BTU/h 4.5-ton | 28,200 BTU/h 54% of rated | 2.50 | 8.5 | 15.2 | R-454B | 215863959 |
| 5A6H6036A1 5TEMCD07AV51+TDR+TSTAT Silver 16 | 31,200 BTU/h 3-ton | 17,000 BTU/h 55% of rated | 2.49 | 8.1 | 16.5 | R-454B | 218107907 |
| N5HP5036A1 A5AHV006A1D3+TDR+TSTAT Bronze 15 | 30,400 BTU/h 3-ton | 17,400 BTU/h 57% of rated | 2.48 | 8.1 | 16.0 | R-454B | 218470415 |
| 5A6H5036A1 5TEM6D07AV51+TDR+TSTAT Silver 15 | 31,400 BTU/h 3-ton | 17,500 BTU/h 56% of rated | 2.40 | 8.5 | 16.0 | R-454B | 214078526 |
Most efficient for cooling
| Outdoor / indoor model | Size | SEER2 | EER2 | HSPF2 | COP at 5°F | Refrigerant | AHRI # |
|---|---|---|---|---|---|---|---|
| M5THS2312A11NA* M5MHWUN12B1N0A* 23U Series | 12,600 BTU/h 1-ton | 24.0 | 13.0 | 10.0 | 2.10 | R-454B ENERGY STAR Cold Climate | 218067095 |
| M5THM2318A12NA* 23U Multi | 20,000 BTU/h 1.5-ton | 24.0 | 13.0 | 10.5 | 2.00 | R-454B ENERGY STAR Cold Climate | 218067086 |
| M5THM2327A13NA* 23U Multi | 28,000 BTU/h 2.5-ton | 24.0 | 12.0 | 10.5 | 2.00 | R-454B ENERGY STAR Cold Climate | 218067087 |
| M3THS2209A91NA M3MHW2209A9N0A CXV | 9,000 BTU/h 1-ton | 23.5 | 13.5 | 9.5 | 1.80 | R-32 | 212586155 |
Look up any pairing by its AHRI number in the AHRI Directory ↗ or search the model in ENERGY STAR's product finder ↗. Ratings are for the exact indoor and outdoor pairing shown.
Warranty
Registration: Base Limited Warranty, typically 5 years on compressor, outdoor coil and parts, if not registered within 60 days of installation. Registered compressor cover is 12 years on variable- and multi-speed families (e.g. 5A6V, 5A7V, 5A6H7, 5HCL6, 5HCL9) and 10 years on the rest, per the shared Trane U.S. warranty letter.
Labour: Not in the base or registered limited warranty; labour only via optional extended warranty plans bought through the dealer
Same terms (the Trane U.S. warranty letter applies in the US and Canada): base 5 years if not registered within 60 days. American Standard says exclusions vary by province.
Strengths and watch-outs
Strengths
- AccuComfort Platinum 20 Cold Climate (Oct 2026): 100% heating capacity to 5°F and operation to -20°F (Trane Technologies)
- Low-profile cold-climate Platinum 19, Gold 17 and Silver 16 share Trane's 5HCL platform; Platinum 19 and Gold 17 claim 100% of heat down to 5°F
- Same factory warranty as Trane: 12-year registered compressor on variable- and multi-speed families, 10-year parts
- Mitsubishi Electric Hyper-Heating ductless (to -13°F) via the METUS joint venture
Watch-outs
- 60-day registration deadline; otherwise the base warranty is 5 years
- Still lists a 'Quest Cold Climate Heat Pump' (4TXD2) that uses R-410A, so check the refrigerant and build date on any quote
- No labour in the factory warranty
- No dedicated Canadian site; Canadian dealer coverage and ductless availability weren't verified
Which rebates American Standard models fit
Every model in these tables is ENERGY STAR certified, which is the federal equipment rule for the Home Electrification and Appliance Rebates where your state runs them. 69 American Standard outdoor models also meet ENERGY STAR Cold Climate, which several utility programs require. The 25C tax credit ended for heat pumps placed in service after December 31, 2025.
Rebate rules by metro:
Recent news
- AccuComfort Platinum 20 Cold Climate Heat Pump with All Weather launched, 'available this fall' investors.tranetechnologies.com ↗
- Trane Technologies launched low-profile cold climate heat pumps, including American Standard Platinum 19, Gold 17 and Silver 16, rated to heat 'as low as -13°F' mechanical-hub.com ↗
Get quotes for American Standard or a comparable heat pump
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Sources
Model counts and ratings: ENERGY STAR Certified Heat Pumps, updated October 19, 2026. Brand facts checked October 19, 2026 on:
- American Standard heat pumps
- American Standard sitemap (current heat pump pages)
- AccuComfort Variable Speed Platinum 20 (5A6V0)
- AccuComfort Variable Speed Platinum 18 (5A6V8)
- Platinum 19 Low Profile Cold Climate (5HCL9)
- Gold 17 Low Profile Cold Climate (5HCL6)
- Silver 16 Low Profile Cold Climate (5HCL5)
- Gold 17 Multi-Speed (5A6H7)
- Silver 16 (5A6H6)
- Quest Cold Climate Heat Pump (4TXD2, R-410A)
- American Standard ductless mini-splits (Mitsubishi Electric)
- American Standard warranty and registration
- Trane U.S. outdoor-unit warranty covering Trane and American Standard (ODR-SVW001A-EN)
- Trane Technologies release: residential cold climate heat pumps (Oct 1, 2026)
- Mechanical Hub: Trane and American Standard cold climate heat pumps (Dec 3, 2025)
- Trane Technologies brands page (American Standard, Ameristar, RunTru, OxBox)
- Ameristar warranty page
- Allied Air summary of EPA's revised AIM Act rule (R-410A installs), Jun 2026