What is the SEER2 rating of the Trane 5TWR5036A1?

The Trane 5TWR5036A1 is rated at up to 16.5 SEER2 and 12.0 EER2 for cooling and up to 8.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 481 certified matchups SEER2 ranges from 15.2-16.5.

Is the Trane 5TWR5036A1 good for cold climates?

It is not cold-climate certified: none of its matchups meet the ENERGY STAR cold-climate criteria (a COP of at least 1.75 at 5°F among other limits). In places with frequent sub-zero nights, pick a cold-climate 3-ton model.

How much does the Trane 5TWR5036A1 cost to run per year?

At its rated efficiency it costs about $960-$2,380 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,157 in Phoenix and $1,968 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Is the Trane 5TWR5036A1 the same as the American Standard 5A6H5036A1?

Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.

Which indoor units work with the Trane 5TWR5036A1?

ENERGY STAR lists 481 certified combinations for this outdoor unit. The highest-rated ones use 5TEMCD06AV41+TDR+TSTAT, 5PX*CD09AS3+TSTAT+P0V0C000M50SD, 5PX*CD09AS3+TSTAT.

3-ton central heat pump · 15 Single-Stage Heat Pump

Trane 5TWR5036A1

Average cooling efficiency and below average heating efficiency for a 3-ton central heat pump, but not rated for cold climates.

Ranks #198 of 302 3 ton central heat pumps for cooling efficiency, and costs about $1,014 a year to run in a mixed climate like Atlanta.

SEER2: 16.5 Cooling efficiency over a season
Average · beats 40%
HSPF2: 8.5 Heating efficiency over a season
Below average · beats 38%
EER2: 12.0 Cooling efficiency on a 95°F day
Average · beats 64%
Heat at 5°F: 17,800 BTU/h55% of its 47°F output
Excellent · beats 95%

A good fit if…

You want a choice of indoor units - 481 certified pairings.

Think twice if…

You often see nights below 0°F - it is not cold-climate certified.
You mainly need heat - its HSPF2 is below average for central heat pumps.
Comfort and noise matter - a single-stage compressor runs only full-on or off.

Calculate my running cost

Details

Specifications3 ton, R-454B

General
Brand	Trane
Also sold as	American Standard
Outdoor unit model	5TWR5036A1
Series	15 Single-Stage Heat Pump
Type	Central heat pump
Nominal size	3 ton
CompressorVariable-speed units run longer at low power	Single stage
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	January 25, 2024
Last certified	June 3, 2026
Cooling
SEER2Seasonal efficiency, higher is better	16.5 (range 15.2-16.5)
EER2Efficiency at 95°F outdoors	11.7-12.0
Cooling capacity	31,800-35,200 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	7.8-8.5
Capacity at 47°F	29,800-32,800 BTU/h
Capacity at 17°F	20,800-22,400 BTU/h
Capacity at 5°F	16,600-17,800 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.10-2.40
ENERGY STAR cold climate	No

Heating output as it gets colder55% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with 5TEMCD06AV41+TDR+TSTAT at the standard test temperatures, in BTU/h:

Certified matchups481 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 481 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

Indoor unit	Furnace	SEER2	EER2	HSPF2	Heat @5°F	AHRI ref.
5TEMCD06AV41+TDR+TSTAT	-	16.5	12.0	8.5	17,100	215863938
5PX*CD09AS3+TSTAT+P0V0C000M50SD	-	16.5	12.0	8.1	17,300	215568628
5PX*CD09AS3+TSTAT	S9V2C100D5PSC	16.5	12.0	8.1	17,500	215568636
5PX*CD09AS3+TSTAT	S9V2C100D4VSB	16.5	12.0	8.1	17,500	215568638
5PX*D010AS3+TSTAT	S8V2D120M5PDB	16.5	12.0	8.1	17,300	215568686
5PX*D010AS3+TSTAT	S8V2D120M5PCB	16.5	12.0	8.1	17,300	215568692
5PX*C007AS3+TSTAT+P0V0C000M50SD	-	16.5	12.0	8.1	17,300	215568450
5TEMCD07AV51+TDR+TSTAT	-	16.5	12.0	8.1	17,100	215863940
5TEM6D04AV31+TDR+TSTAT	-	16.0	12.0	8.5	17,500	214078521
5TEM6D06AV41+TDR+TSTAT	-	16.0	12.0	8.5	17,400	214078523
5TEM6D07AV51+TDR+TSTAT	-	16.0	12.0	8.5	17,500	214078525
5PX*D008AS3+TSTAT	S9V2D120U5VSB	16.0	12.0	8.5	17,600	215568652
5PX*D008AS3+TSTAT	S9V2D120U5PSC	16.0	12.0	8.5	17,600	215568654
5PX*D008AS3+TSTAT	S8X2D120M5PTC	16.0	12.0	8.5	17,400	215568656
5PX*D008AS3+TSTAT	S8X2D120M5PSC	16.0	12.0	8.5	17,400	215568658
5PX*D008AS3+TSTAT	S8V2D120M5PDB	16.0	12.0	8.5	17,600	215568660
5PX*D008AS3+TSTAT	S8X1D120M5PSC	16.0	12.0	8.5	17,400	215568662
5PX*D008AS3+TSTAT	S8V2D120M5PCB	16.0	12.0	8.5	17,600	215568670
5PX*D008AS3+TSTAT	S8X1D120M5PTC	16.0	12.0	8.5	17,400	215568672
5PX*D010AS3+TSTAT	*UHMD120CCV5	16.0	12.0	8.5	17,600	215568696
5TXCD008AS3+TSTAT	S8X2D120M5PTC	16.0	12.0	8.5	17,400	215566428
5TXCD008AS3+TSTAT	S8X2D120M5PSC	16.0	12.0	8.5	17,400	215566430
5TXCD008AS3+TSTAT	S8X1D120M5PTC	16.0	12.0	8.5	17,400	215566432
5TXCD008AS3+TSTAT	S9V2D120U5PSC	16.0	12.0	8.5	17,600	215566434
5TXCD008AS3+TSTAT	S8V2D120M5PDB	16.0	12.0	8.5	17,600	215566436
5TXCD008AS3+TSTAT	S8V2D120M5PCB	16.0	12.0	8.5	17,600	215566442
5TXCD008AS3+TSTAT	S8X1D120M5PSC	16.0	12.0	8.5	17,400	215566444
5PX*C007AS3+TSTAT	S9V2C100U4VSB	16.0	12.0	8.5	17,600	215568478
5PX*C007AS3+TSTAT	S9V2C100U5PSC	16.0	12.0	8.5	17,700	215568480
5TEM6D05AV41+TDR+TSTAT	-	16.0	12.0	8.5	17,500	215610943
5TEMCD04AV31+TDR+TSTAT	-	16.0	12.0	8.5	17,200	215863934
5TEMCD05AV41+TDR+TSTAT	-	16.0	12.0	8.5	17,200	215863936
5PX*C007AS3+TSTAT	S9V2C100U5VSB	16.0	12.0	8.5	17,600	215831464
5PX*C007AS3+TSTAT	S9V2C080U5VSB	16.0	12.0	8.5	17,700	215831466
5TXCC007AS3+TSTAT	S9V2C080U5VSB	16.0	12.0	8.5	17,700	215831488
5TXCC007AS3+TSTAT	S9V2C100U5VSB	16.0	12.0	8.5	17,600	215831490
5TXCD008AS3+TSTAT	S9V2D120U5VSB	16.0	12.0	8.5	17,600	218363742
5TXCC007AS3+TSTAT	S9V2C100U5PSC	16.0	12.0	8.1	17,100	214078713
5TXCC007AS3+TSTAT	S8V2C080M5PCB	16.0	12.0	8.1	17,200	214078717
5TXCC007AS3+TSTAT+P0V0C000M50SD	-	16.0	12.0	8.1	17,000	214078721
5TXCC007AS3+TSTAT+P0V0C000M50SC	-	16.0	12.0	8.1	17,000	214078723
5TXCC007AS3+TSTAT	L8V1C100U5VSB	16.0	12.0	8.1	17,100	214078727
5TXCC007AS3+TSTAT	*UHMC100CCV4	16.0	12.0	8.1	17,100	214078729
5TXCC007AS3+TSTAT	*UHMC100ACV4	16.0	12.0	8.1	17,000	214078731
5TXCB006AS3+TSTAT	*UHMB080CCV3	16.0	12.0	8.1	17,300	214078629
5TXCB006AS3+TSTAT+P0V0B000M40SD	-	16.0	12.0	8.1	17,100	214078653
5TXCC007AS3+TSTAT	S9V2C100U4VSB	16.0	12.0	8.1	17,600	214078769
5TXCC007AS3+TSTAT	S9V2C100U4VSA	16.0	12.0	8.1	17,100	214078767
5TXCC007AS3+TSTAT	S9V2C100U5PSB	16.0	12.0	8.1	17,100	214078771
5TXCC007AS3+TSTAT	S8V2C080M5PDB	16.0	12.0	8.1	17,200	214078773
5TXCD010AS3+TSTAT	S9V2D120U5VSB	16.0	12.0	8.1	16,900	214078777
5TXCD010AS3+TSTAT	S9V2D120U5VSA	16.0	12.0	8.1	17,300	214078779
5TXCD010AS3+TSTAT	S9V2D120U5PSC	16.0	12.0	8.1	16,900	214078781
5TXCD010AS3+TSTAT	S9V2D120U5PSB	16.0	12.0	8.1	16,900	214078783
5TXCD010AS3+TSTAT	S8X2D120M5PTC	16.0	12.0	8.1	17,200	214078785
5TXCD010AS3+TSTAT	S8V2D120M5PDA	16.0	12.0	8.1	16,900	214078787
5TXCD010AS3+TSTAT	S8V2D120M5PCB	16.0	12.0	8.1	16,900	214078789
5TXCD010AS3+TSTAT	S8V2D120M5PCA	16.0	12.0	8.1	16,900	214078791
5TXCD010AS3+TSTAT	*UHMD120CCV5	16.0	12.0	8.1	17,000	214078793
5TXCD010AS3+TSTAT	*UHMD120ACV5	16.0	12.0	8.1	17,000	214078795

Same unit, other model numbers1

These model numbers have exactly the same certified ratings and matchups as the Trane 5TWR5036A1: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

American Standard 5A6H5036A1

Yearly running cost in 10 large cities$960-$2,380

Phoenix, AZ$1,157/yr
Miami, FL$960/yr
Houston, TX$1,036/yr
Atlanta, GA$1,014/yr
Los Angeles, CA$979/yr
New York, NY$2,380/yr
Chicago, IL$1,924/yr
Denver, CO$1,593/yr
Seattle, WA$973/yr
Minneapolis, MN$1,968/yr

At each state's average electricity price and the city's typical heating and cooling hours.

Questions6

What is the SEER2 rating of the Trane 5TWR5036A1?: The Trane 5TWR5036A1 is rated at up to 16.5 SEER2 and 12.0 EER2 for cooling and up to 8.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 481 certified matchups SEER2 ranges from 15.2-16.5.
Is the Trane 5TWR5036A1 good for cold climates?: It is not cold-climate certified: none of its matchups meet the ENERGY STAR cold-climate criteria (a COP of at least 1.75 at 5°F among other limits). In places with frequent sub-zero nights, pick a cold-climate 3-ton model.
How much does the Trane 5TWR5036A1 cost to run per year?: At its rated efficiency it costs about $960-$2,380 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,157 in Phoenix and $1,968 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Is the Trane 5TWR5036A1 the same as the American Standard 5A6H5036A1?: Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.
Which indoor units work with the Trane 5TWR5036A1?: ENERGY STAR lists 481 certified combinations for this outdoor unit. The highest-rated ones use 5TEMCD06AV41+TDR+TSTAT, 5PX*CD09AS3+TSTAT+P0V0C000M50SD, 5PX*CD09AS3+TSTAT.
What refrigerant does the Trane 5TWR5036A1 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.

Heat pump $1,135/yrYou save $569/yrSee details ↓

1. Where you live

StateCityElectricity ¢ per kWh

Adjust heating and cooling hours

Filled in from your city's climate. Change them if you run the system much more or less than usual.

Cooling hours full-load hours per yearHeating hours full-load hours per year

2. The heat pump Trane 5TWR5036A1

Find a model (fills in the ratings below)

SEER2 cooling efficiencyHSPF2 heating efficiencyCooling capacity BTU/hHeating capacity BTU/h

3. What it replaces

Current heatingFurnace efficiency (AFUE %)Gas price, $/thermCurrent coolingOld AC rating SEER2 (10 ≈ 15+ years old)

4. Price replace the example with your quote

Installed price, $Rebates and incentives, $ utility, state

Heat pump, per year: $1,135
Current system, per year: $1,704
You save per year: $569
Payback: 22.0 years
Net after 10 years: -$6,813

Cooling $721Heating $414Electricity used: 7,093 kWhSaved vs. a minimum-efficiency heat pump: $166

Estimates use the unit's rated SEER2 and HSPF2, full-load hours derived from NOAA 1991-2020 degree days, average residential electricity prices from the U.S. EIA (12 months to July 2026) and fuel prices from EIA (2025 for natural gas, week of 2026-10-05 for propane and heating oil). Very cold days that need backup heat are not modelled. Federal minimum for comparison: 14.3 SEER2 / 7.5 HSPF2.

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Heil H5H8T36*K*AAA16.5 SEER2 · 8.5 HSPF2
Innovair SHV36H2BA · cold climate16.5 SEER2 · 8.2 HSPF2
Heil D5CUHAH36AAK+TIC2025-0016 · cold climate16.5 SEER2 · 8.5 HSPF2
Lennox ML14KP1-036-230A16.5 SEER2 · 8.1 HSPF2
Carrier 37MUHAQ36AA3+TIC2025-0016 · cold climate16.5 SEER2 · 8.5 HSPF2
MRCOOL MHP17036A-**A16.6 SEER2 · 8.1 HSPF2

See all 302 3 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of June 3, 2026. How we use the data.