What is the SEER2 rating of the Trane 5TWV8X24A1?

The Trane 5TWV8X24A1 is rated at up to 18.1 SEER2 and 11.5 EER2 for cooling and up to 8.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.

Is the Trane 5TWV8X24A1 good for cold climates?

Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 18,700 BTU/h at 5°F with a COP of 2.27, so it is still 2.3 times as efficient as electric resistance heat at that temperature.

How much does the Trane 5TWV8X24A1 cost to run per year?

At its rated efficiency it costs about $574-$1,686 a year in electricity in large U.S. cities, depending on climate and local rates - for example $728 in Phoenix and $1,425 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Is the Trane 5TWV8X24A1 the same as the American Standard 5A6V8X24A1?

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 5TWV8X24A1?

ENERGY STAR lists 80 certified combinations for this outdoor unit. The highest-rated ones use 5TEMCB03AV31+TDR, 5TAMXC03AV31, 5TAMXD04AV31.

2-ton central heat pump · 18 TruComfort Variable Speed Heat Pump

Trane 5TWV8X24A1

Very good cooling efficiency and below average heating efficiency for a 2-ton central heat pump, and certified for cold climates.

Ranks #151 of 331 2 ton central heat pumps for cooling efficiency, and costs about $691 a year to run in a mixed climate like Atlanta.

SEER2: 18.1 Cooling efficiency over a season
Very good · beats 71%
HSPF2: 8.5 Heating efficiency over a season
Below average · beats 38%
EER2: 11.5 Cooling efficiency on a 95°F day
Below average · beats 31%
Heat at 5°F: 18,700 BTU/h77% of its 47°F output
Very good · beats 85%

A good fit if…

You want low cooling bills - its SEER2 beats 71% of central heat pumps.
Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 18,700 BTU/h at 5°F.
You want steady temperatures and quiet running - the compressor varies its speed.
You want a choice of indoor units - 80 certified pairings.

Think twice if…

You mainly need heat - its HSPF2 is below average for central heat pumps.

Calculate my running cost

Details

Specifications2 ton, R-454B

General
Brand	Trane
Also sold as	American Standard
Outdoor unit model	5TWV8X24A1
Series	18 TruComfort Variable Speed Heat Pump
Type	Central heat pump
Nominal size	2 ton
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	October 11, 2024
Last certified	June 12, 2026
Cooling
SEER2Seasonal efficiency, higher is better	18.1 (range 18.1)
EER2Efficiency at 95°F outdoors	11.5
Cooling capacity	21,400-22,200 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.5
Capacity at 47°F	22,800-23,800 BTU/h
Capacity at 17°F	22,400-23,200 BTU/h
Capacity at 5°F	17,600-18,700 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.10-2.27
ENERGY STAR cold climate	Yes

Heating output as it gets colder77% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with 5TEMCB03AV31+TDR at the standard test temperatures, in BTU/h:

Certified matchups80 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 80 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.
5TEMCB03AV31+TDR · cold climate	-	18.1	11.5	8.5	17,600	215865035
5TAMXC03AV31 · cold climate	-	18.1	11.5	8.5	18,500	216056996
5TAMXD04AV31 · cold climate	-	18.1	11.5	8.5	18,300	216056998
5TAMXB02AV21 · cold climate	-	18.1	11.5	8.5	18,600	216569816
5PX*BD06AS3 · cold climate	*DHMB080CCV3+LRP	18.1	11.5	8.5	18,600	216571218
5PX*BD06AS3 · cold climate	S8V2A040M3PCB	18.1	11.5	8.5	18,600	216571220
5PX*BD06AS3 · cold climate	S8V2A040M3PDB	18.1	11.5	8.5	18,600	216571222
5PX*BD06AS3 · cold climate	*DHMB060CCV3+LRP	18.1	11.5	8.5	18,600	216571224
5PX*B006AS3 · cold climate	*UHMB060CCV3+LRP	18.1	11.5	8.5	18,300	216571188
5PX*B006AS3 · cold climate	*UHMB080CCV3+LRP	18.1	11.5	8.5	18,300	216571190
5PX*B006AS3 · cold climate	L8V1A040U3VSB+LRP	18.1	11.5	8.5	18,700	216571192
5PX*B006AS3 · cold climate	L8V1A060U3VSB+LRP	18.1	11.5	8.5	18,700	216571194
5PX*B006AS3 · cold climate	L8V1B080U4VSB+LRP	18.1	11.5	8.5	18,600	216571196
5PX*B006AS3 · cold climate	S8V2A040M3PDB	18.1	11.5	8.5	18,500	216571198
5PX*B006AS3 · cold climate	S8V2B080M4PDB	18.1	11.5	8.5	18,600	216571200
5PX*B006AS3 · cold climate	S8V2B080M4PCB	18.1	11.5	8.5	18,600	216571202
5PX*B006AS3 · cold climate	S8V2B060M4PDB	18.1	11.5	8.5	18,700	216571204
5PX*B006AS3 · cold climate	S8V2B060M4PCB	18.1	11.5	8.5	18,700	216571206
5PX*B006AS3 · cold climate	S8V2A040M3PCB	18.1	11.5	8.5	18,500	216571208
5PX*BD06AS3 · cold climate	S8V2B080M4PDB	18.1	11.5	8.5	18,600	216571210
5PX*BD06AS3 · cold climate	S8V2B080M4PCB	18.1	11.5	8.5	18,600	216571212
5PX*BD06AS3 · cold climate	S8V2B060M4PDB	18.1	11.5	8.5	18,700	216571214
5PX*BD06AS3 · cold climate	S8V2B060M4PCB	18.1	11.5	8.5	18,700	216571216
5PX*BD06AS3 · cold climate	S9V2B080D4PSC+LRP	18.1	11.5	8.5	18,700	216599681
5PX*B006AS3 · cold climate	S9V2B080U4PSC+LRP	18.1	11.5	8.5	18,700	216599679
5PX*B006AS3 · cold climate	S9V2B060U3VSB+LRP	18.1	11.5	8.5	18,700	217179509
5PX*B006AS3 · cold climate	S9V2B040U3VSB+LRP	18.1	11.5	8.5	18,600	217179511
5PX*B006AS3 · cold climate	S9V2B040U3PSC+LRP	18.1	11.5	8.5	18,600	217179515
5PX*B006AS3+P0V0A000M30SD+LRP · cold climate	-	18.1	11.5	8.5	18,600	217179513
5PX*B006AS3 · cold climate	S9V2B080U4VSB+LRP	18.1	11.5	8.5	18,700	217179517
5PX*B006AS3 · cold climate	S9V2B060U4VSB+LRP	18.1	11.5	8.5	18,700	217179519
5PX*B006AS3 · cold climate	S9V2B060U4PSC+LRP	18.1	11.5	8.5	18,700	217179521
5PX*BD04AS3 · cold climate	S9V2B040D3VSB+LRP	18.1	11.5	8.5	18,500	217179523
5PX*BD04AS3 · cold climate	S9V2B060D3PSC+LRP	18.1	11.5	8.5	18,500	217179525
5PX*BD04AS3 · cold climate	S9V2B060D3VSB+LRP	18.1	11.5	8.5	18,500	217179527
5PX*BD04AS3 · cold climate	S9V2B080D4PSC+LRP	18.1	11.5	8.5	18,600	217179529
5PX*BD04AS3 · cold climate	S9V2B040D3PSC+LRP	18.1	11.5	8.5	18,500	217179531
5PX*BD04AS3 · cold climate	S8V2B080M4PCB	18.1	11.5	8.5	18,500	217179533
5PX*BD04AS3 · cold climate	S8V2B060M4PCB	18.1	11.5	8.5	18,500	217179535
5PX*BD04AS3 · cold climate	S8V2A040M3PCB	18.1	11.5	8.5	18,500	217179537
5PX*BD04AS3 · cold climate	S9V2B080D4VSB+LRP	18.1	11.5	8.5	18,600	217179539
5PX*BD04AS3 · cold climate	*DHMB080CCV3+LRP	18.1	11.5	8.5	18,500	217179541
5PX*BD04AS3 · cold climate	*DHMB060CCV3+LRP	18.1	11.5	8.5	18,500	217179543
5PX*BD04AS3+P0V0A000M30SD+LRP · cold climate	-	18.1	11.5	8.5	18,600	217179545
5PX*BD06AS3 · cold climate	S9V2B040D3PSC+LRP	18.1	11.5	8.5	18,600	217179547
5PX*BD06AS3+P0V0A000M30SD+LRP · cold climate	-	18.1	11.5	8.5	18,700	217179549
5PX*BD06AS3 · cold climate	S9V2B040D3VSB+LRP	18.1	11.5	8.5	18,600	217179551
5PX*BD06AS3 · cold climate	S9V2B080D4VSB+LRP	18.1	11.5	8.5	18,700	217179553
5PX*BD06AS3 · cold climate	S9V2B060D3VSB+LRP	18.1	11.5	8.5	18,700	217179555
5PX*BD06AS3 · cold climate	S9V2B060D3PSC+LRP	18.1	11.5	8.5	18,700	217179557
5TXCB006AS3 · cold climate	L8V1B080U4VSB+LRP	18.1	11.5	8.5	18,700	217179559
5TXCB006AS3+P0V0A000M30SD+LRP · cold climate	-	18.1	11.5	8.5	18,600	217179561
5TXCB006AS3 · cold climate	S8V2A040M3PCB	18.1	11.5	8.5	18,600	217179563
5TXCB006AS3 · cold climate	S8V2B060M4PCB	18.1	11.5	8.5	18,700	217179565
5TXCB006AS3 · cold climate	S8V2B080M4PCB	18.1	11.5	8.5	18,600	217179567
5TXCB006AS3 · cold climate	S9V2B040U3PSC+LRP	18.1	11.5	8.5	18,600	217179569
5TXCB006AS3 · cold climate	S9V2B040U3VSB+LRP	18.1	11.5	8.5	18,600	217179571
5TXCB006AS3 · cold climate	S9V2B060U3VSB+LRP	18.1	11.5	8.5	18,700	217179573
5TXCB006AS3 · cold climate	S9V2B060U4PSC+LRP	18.1	11.5	8.5	18,700	217179575
5TXCB006AS3 · cold climate	S9V2B060U4VSB+LRP	18.1	11.5	8.5	18,700	217179577

Same unit, other model numbers1

These model numbers have exactly the same certified ratings and matchups as the Trane 5TWV8X24A1: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

American Standard 5A6V8X24A1

Yearly running cost in 10 large cities$574-$1,686

Phoenix, AZ$728/yr
Miami, FL$574/yr
Houston, TX$654/yr
Atlanta, GA$691/yr
Los Angeles, CA$679/yr
New York, NY$1,686/yr
Chicago, IL$1,376/yr
Denver, CO$1,150/yr
Seattle, WA$711/yr
Minneapolis, MN$1,425/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 5TWV8X24A1?: The Trane 5TWV8X24A1 is rated at up to 18.1 SEER2 and 11.5 EER2 for cooling and up to 8.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
Is the Trane 5TWV8X24A1 good for cold climates?: Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 18,700 BTU/h at 5°F with a COP of 2.27, so it is still 2.3 times as efficient as electric resistance heat at that temperature.
How much does the Trane 5TWV8X24A1 cost to run per year?: At its rated efficiency it costs about $574-$1,686 a year in electricity in large U.S. cities, depending on climate and local rates - for example $728 in Phoenix and $1,425 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Is the Trane 5TWV8X24A1 the same as the American Standard 5A6V8X24A1?: 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 5TWV8X24A1?: ENERGY STAR lists 80 certified combinations for this outdoor unit. The highest-rated ones use 5TEMCB03AV31+TDR, 5TAMXC03AV31, 5TAMXD04AV31.
What refrigerant does the Trane 5TWV8X24A1 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 $734/yrYou save $420/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 5TWV8X24A1

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: $734
Current system, per year: $1,154
You save per year: $420
Payback: 20.2 years
Net after 10 years: -$4,295

Cooling $428Heating $306Electricity used: 4,585 kWhSaved vs. a minimum-efficiency heat pump: $154

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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1HVAC ACIQ-24-HP32 · cold climate18.0 SEER2 · 10.0 HSPF2
MRCOOL MVP-24-HP-C-230A00-O · cold climate18.1 SEER2 · 9.7 HSPF2
GREE GUD24W2/NHE-D(U) · cold climate18.0 SEER2 · 10.0 HSPF2
KEEN Home KEENSTDHP24AA · cold climate18.1 SEER2 · 9.7 HSPF2
Midea 38MURAQ24AB3 · cold climate18.0 SEER2 · 10.0 HSPF2
InfinityLiving EZ-24-EHPB · cold climate18.1 SEER2 · 9.7 HSPF2

See all 331 2 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of June 12, 2026. How we use the data.