What is the SEER2 rating of the Trane 4TWV8X48A1?

The Trane 4TWV8X48A1 is rated at up to 18.0 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.

Is the Trane 4TWV8X48A1 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 4-ton model.

How much does the Trane 4TWV8X48A1 cost to run per year?

At its rated efficiency it costs about $1,201-$3,198 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,478 in Phoenix and $2,671 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 Trane 4TWV8X48A1?

ENERGY STAR lists 207 certified combinations for this outdoor unit. The highest-rated ones use TEM8B0C60V51+TDR, 4PX*DU60BS3+P0V0C000M50SC+RP, 4PX*CU60BS3+P0V0C000M50SC+RP.

What refrigerant does the Trane 4TWV8X48A1 use?

It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

4-ton central heat pump · XV18I

Trane 4TWV8X48A1

Average cooling efficiency and below average heating efficiency for a 4-ton central heat pump, but not rated for cold climates.

Ranks #110 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,339 a year to run in a mixed climate like Atlanta.

SEER2: 18.0 Cooling efficiency over a season
Average · beats 66%
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: 29,400 BTU/h67% of its 47°F output
Below average · beats 39%

A good fit if…

You want steady temperatures and quiet running - the compressor varies its speed.
You want a choice of indoor units - 207 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.
You want the newest refrigerant - it uses R-410A, which is being phased down.

Calculate my running cost

Details

Specifications4 ton, R-410A

General
Brand	Trane
Outdoor unit model	4TWV8X48A1
Series	XV18I
Type	Central heat pump
Nominal size	4 ton
CompressorVariable-speed units run longer at low power	Continuously variable
Refrigerant	R-410A
Connected (smart) capable	No
On the market since	January 1, 2023
Last certified	July 9, 2025
Cooling
SEER2Seasonal efficiency, higher is better	18.0 (range 18.0)
EER2Efficiency at 95°F outdoors	11.0-12.0
Cooling capacity	44,000-47,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.0-8.5
Capacity at 47°F	41,000-46,000 BTU/h
Capacity at 17°F	35,200-37,800 BTU/h
Capacity at 5°F	27,400-29,400 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	1.68-2.00
ENERGY STAR cold climate	No

Heating output as it gets colder67% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with TEM8B0C60V51+TDR at the standard test temperatures, in BTU/h:

Certified matchups207 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 207 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.
TEM8B0C60V51+TDR	-	18.0	12.0	8.5	28,600	207820955
4PX*DU60BS3+P0V0C000M50SC+RP	-	18.0	12.0	8.5	27,600	207805619
4PX*CU60BS3+P0V0C000M50SC+RP	-	18.0	12.0	8.5	28,600	207805607
4TXCD010DS3+P0V0C000M50SC+RP	-	18.0	12.0	8.5	27,600	207805625
4PX*DU60BS3	S8V2C080M5PDA	18.0	11.7	8.5	27,400	211088972
4TXCD010DS3	S8V2C080M5PDA	18.0	11.7	8.5	27,400	211088977
4TXCC009DS3+P0V0C000M50SC+RP	-	18.0	12.0	8.5	28,600	207805622
4PX*DU60BS3+P0V0D000M50SC+RP	-	18.0	12.0	8.5	28,400	207805618
4TXCD010DS3+P0V0D000M50SC+RP	-	18.0	12.0	8.5	28,400	207805626
4PX*CD60BS3+P0V0C000M50SC+RP	-	18.0	12.0	8.5	28,400	207805603
4TXCD008DS3+P0V0D000M50SC+RP	-	18.0	12.0	8.5	28,800	207805623
4TXCD010DS3	S9V2C100U5PSB+RP	18.0	11.7	8.5	28,000	207599993
4TXCC009DS3	S8V2C080M5PDA	18.0	11.7	8.5	28,400	211081277
4TXCC009DS3	S8V2C100M5PDA	18.0	11.7	8.5	28,600	211081278
4TXCD010DS3	S8V2C100M5PDA	18.0	11.7	8.5	27,600	211081280
4PX*DU60BS3	S8V2C100M5PDA	18.0	11.7	8.5	27,600	211081272
4TXCD010DS3	S8V2D120M5PDA	18.0	12.0	8.5	28,400	211081281
4PX*CU60BS3	S8V2C080M5PDA	18.0	11.7	8.5	28,400	211081266
4PX*DU48BS3	S8V2D120M5PDA	18.0	11.7	8.5	28,800	211081270
4PX*CU60BS3	S8V2C100M5PDA	18.0	11.7	8.5	28,600	211081267
4PX*DU60BS3	S9V2C100U5PSB+RP	18.0	11.7	8.5	28,000	207599984
4PX*CD60BS3	S8V2C100M5PDA	18.0	11.7	8.5	28,600	211081261
4TXCD008DS3	S8V2D120M5PDA	18.0	11.7	8.5	28,800	211081279
4PX*DU60BS3	S8V2D120M5PDA	18.0	12.0	8.5	28,400	211081271
4PX*CD60BS3	S8V2C080M5PDA	18.0	11.7	8.5	28,400	211081260
4TXCD010DS3	L8V1C100U5VSA+RP	18.0	12.0	8.5	27,400	207526904
4PX*DU60BS3	L8V1C100U5VSA+RP	18.0	12.0	8.5	27,400	207526902
4TXCD010DS3	S9V2D120U5VSA+RP	18.0	12.0	8.5	28,600	207526494
4TXCD010DS3	S8V2C080M5PCA	18.0	11.7	8.5	27,400	210692197
4PX*DU60BS3	S9V2D120U5VSA+RP	18.0	12.0	8.5	28,600	207526487
4PX*DU60BS3	S8V2C080M5PCA	18.0	11.7	8.5	27,400	210692192
4TXCC009DS3	*UD2C080ACV4	18.0	11.7	8.5	28,600	207526295
4PX*DU60BS3	*UD2D120ACV5	18.0	11.7	8.5	28,400	207526273
4PX*CU60BS3	*UD2C080ACV4	18.0	11.7	8.5	28,600	207526270
TEM8A0C48V41+TDR	-	18.0	12.0	8.5	28,600	207526358
4TXCD010DS3	*UD2D120ACV5	18.0	11.7	8.5	28,400	207526300
4TXCD010DS3	S8V2C100M5PCA	18.0	11.7	8.5	27,600	210691919
4TXCD010DS3	S8V2D120M5PCA	18.0	12.0	8.5	28,400	210691920
4PX*DU48BS3	S8V2D120M5PCA	18.0	11.7	8.5	28,800	210691909
4TXCC009DS3	S8V2C080M5PCA	18.0	11.7	8.5	28,400	210691916
4PX*DU60BS3	S8V2D120M5PCA	18.0	12.0	8.5	28,400	210691911
4PX*CD60BS3	S8V2C080M5PCA	18.0	11.7	8.5	28,400	210691899
4PX*CU60BS3	S8V2C080M5PCA	18.0	11.7	8.5	28,400	210691905
4TXCC009DS3	S8V2C100M5PCA	18.0	11.7	8.5	28,600	210691917
4PX*CD60BS3	S8V2C100M5PCA	18.0	11.7	8.5	28,600	210691900
4PX*CU60BS3	S8V2C100M5PCA	18.0	11.7	8.5	28,600	210691906
4PX*DU60BS3	S8V2C100M5PCA	18.0	11.7	8.5	27,600	210691910
4TXCD008DS3	S8V2D120M5PCA	18.0	11.7	8.5	28,800	210691918
4TXCB006DS3+P0V0B000M40SC+RP	-	18.0	11.7	8.5	28,200	211289108
4PX*BU48BS3+P0V0B000M40SC+RP	-	18.0	11.7	8.5	28,200	211289107
4TXCD010DS3	S9V2C080U5PSB+RP	18.0	11.7	8.5	28,000	208185414
4PX*DU60BS3	S9V2C100U4VSA+RP	18.0	11.7	8.5	27,800	207526488
4TXCD010DS3	S9V2C100U4VSA+RP	18.0	11.7	8.5	27,800	207526495
4PX*CU42BS3	L8V1C100U5VSA+RP	18.0	11.7	8.5	28,800	210653669
4PX*DU60BS3	S9V2C080U5PSB+RP	18.0	11.7	8.5	28,000	210653686
4PX*CU60BS3	S9V2C100U5PSB+RP	18.0	11.7	8.5	28,800	208121978
4TXCC009DS3	S9V2C080U5PSB+RP	18.0	11.7	8.5	29,000	208185412
4TXCC009DS3	S9V2C100U5PSB+RP	18.0	11.7	8.5	28,800	208185413
4TXCD010DS3	S9V2D120U5PSB+RP	18.0	12.0	8.5	28,600	208185415
4PX*CD60BS3	S9V2C100D4VSA+RP	18.0	11.7	8.5	28,800	207526480

Yearly running cost in 10 large cities$1,201-$3,198

Phoenix, AZ$1,478/yr
Miami, FL$1,201/yr
Houston, TX$1,325/yr
Atlanta, GA$1,339/yr
Los Angeles, CA$1,303/yr
New York, NY$3,198/yr
Chicago, IL$2,596/yr
Denver, CO$2,158/yr
Seattle, WA$1,326/yr
Minneapolis, MN$2,671/yr

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

Questions5

What is the SEER2 rating of the Trane 4TWV8X48A1?: The Trane 4TWV8X48A1 is rated at up to 18.0 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.
Is the Trane 4TWV8X48A1 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 4-ton model.
How much does the Trane 4TWV8X48A1 cost to run per year?: At its rated efficiency it costs about $1,201-$3,198 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,478 in Phoenix and $2,671 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 Trane 4TWV8X48A1?: ENERGY STAR lists 207 certified combinations for this outdoor unit. The highest-rated ones use TEM8B0C60V51+TDR, 4PX*DU60BS3+P0V0C000M50SC+RP, 4PX*CU60BS3+P0V0C000M50SC+RP.
What refrigerant does the Trane 4TWV8X48A1 use?: It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

Running cost and savings

Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.

Heat pump $1,466/yrYou save $857/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 4TWV8X48A1

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: $1,466
Current system, per year: $2,323
You save per year: $857
Payback: 20.4 years
Net after 10 years: -$8,934

Cooling $900Heating $567Electricity used: 9,163 kWhSaved vs. a minimum-efficiency heat pump: $308

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.

Similar 4 ton models

Tempstar T5H8T48*K*AAA18.0 SEER2 · 8.5 HSPF2
TCL THH48TEI2NAI0H24 · cold climate18.0 SEER2 · 8.5 HSPF2
WeatherMaker PH8TAN548**AB18.0 SEER2 · 8.5 HSPF2
Kenmore (C,H,T)5H8T48*K*AAA18.0 SEER2 · 8.5 HSPF2
Century HSA1960V1-**A18.0 SEER2 · 8.2 HSPF2
Heil H5H8T48*K*AAA18.0 SEER2 · 8.5 HSPF2
MDV MOX630-48HFN8-M3F · cold climate17.8 SEER2 · 8.7 HSPF2
Friedrich RD17AZ48AJ3N · cold climate18.0 SEER2 · 8.5 HSPF2

See all 319 4 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of July 9, 2025. How we use the data.