3-ton central heat pump · AH Series
TRUST AIR CONDITIONERS AH36H/O64P
Below average cooling efficiency and average heating efficiency for a 3-ton central heat pump, and certified for cold climates.
Ranks #219 of 302 3 ton central heat pumps for cooling efficiency, and costs about $1,143 a year to run in a mixed climate like Atlanta.
- SEER2
- 16.1 Cooling efficiency over a seasonBelow average · beats 34%
- HSPF2
- 8.7 Heating efficiency over a seasonAverage · beats 47%
- EER2
- 10.0 Cooling efficiency on a 95°F dayBelow average · beats 10%
- Heat at 5°F
- 28,400 BTU/h75% of its 47°F outputBelow average · beats 39%
A good fit if…
- Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 28,400 BTU/h at 5°F.
- You want steady temperatures and quiet running - the compressor varies its speed.
Think twice if…
- Cooling cost matters most - its SEER2 is below average for central heat pumps.
Details
Specifications
| General | |
|---|---|
| Brand | TRUST AIR CONDITIONERS |
| Outdoor unit model | AH36H/O64P |
| Series | AH Series |
| Type | Central heat pump |
| Nominal size | 3 ton |
| CompressorVariable-speed units run longer at low power | Continuously variable |
| Refrigerant | R-454B |
| Connected (smart) capable | No |
| On the market since | August 21, 2025 |
| Last certified | August 20, 2026 |
| Cooling | |
| SEER2Seasonal efficiency, higher is better | 16.1 (range 15.4-16.1) |
| EER2Efficiency at 95°F outdoors | 9.2-10.0 |
| Cooling capacity | 36,000 BTU/h |
| Heating | |
| HSPF2Seasonal efficiency, higher is better | 8.7 |
| Capacity at 47°F | 36,000-37,000 BTU/h |
| Capacity at 17°F | 24,600-27,000 BTU/h |
| Capacity at 5°F | 27,000-28,400 BTU/h |
| COP at 5°F2.0 = twice as efficient as a space heater | 1.86-2.00 |
| ENERGY STAR cold climate | Yes |
Heating output as it gets colder
Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with AH36H/I64P at the standard test temperatures, in BTU/h:
Certified matchups
The same outdoor unit scores differently with each indoor unit. Ask your installer for the AHRI reference number of the exact system you are quoted.
| Indoor unit | SEER2 | EER2 | HSPF2 | Heat @5°F | AHRI ref. |
|---|---|---|---|---|---|
| AH36H/I64P · cold climate | 16.1 | 10.0 | 8.7 | 27,000 | 217678186 |
| IUMDP36H/I63P · cold climate | 15.4 | 9.2 | 8.7 | 28,400 | 217678198 |
Yearly running cost in 10 large cities
- Phoenix, AZ$1,280/yr
- Miami, FL$1,049/yr
- Houston, TX$1,147/yr
- Atlanta, GA$1,143/yr
- Los Angeles, CA$1,108/yr
- New York, NY$2,710/yr
- Chicago, IL$2,196/yr
- Denver, CO$1,822/yr
- Seattle, WA$1,117/yr
- Minneapolis, MN$2,254/yr
At each state's average electricity price and the city's typical heating and cooling hours.
Questions
- What is the SEER2 rating of the TRUST AIR CONDITIONERS AH36H/O64P?
- The TRUST AIR CONDITIONERS AH36H/O64P is rated at up to 16.1 SEER2 and 10.0 EER2 for cooling and up to 8.7 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 2 certified matchups SEER2 ranges from 15.4-16.1.
- Is the TRUST AIR CONDITIONERS AH36H/O64P good for cold climates?
- Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 28,400 BTU/h at 5°F with a COP of 2.00, so it is still 2.0 times as efficient as electric resistance heat at that temperature.
- How much does the TRUST AIR CONDITIONERS AH36H/O64P cost to run per year?
- At its rated efficiency it costs about $1,049-$2,710 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,280 in Phoenix and $2,254 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
- Which indoor units work with the TRUST AIR CONDITIONERS AH36H/O64P?
- ENERGY STAR lists 2 certified combinations for this outdoor unit. The highest-rated ones use AH36H/I64P, IUMDP36H/I63P.
- What refrigerant does the TRUST AIR CONDITIONERS AH36H/O64P use?
- It uses R-454B.
Running cost and savings
Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.
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See all 302 3 ton central heat pumps, ranked
Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of August 20, 2026. How we use the data.