What is the SEER2 rating of the Trane 4TWV0048A1?

The Trane 4TWV0048A1 is rated at up to 19.5 SEER2 and 11.7 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 4TWV0048A1 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 4TWV0048A1 cost to run per year?

At its rated efficiency it costs about $1,109-$3,001 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,372 in Phoenix and $2,511 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Is the Trane 4TWV0048A1 the same as the American Standard 4A6V0048A1?

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 4TWV0048A1?

ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses TAM9A0C60V51.

What refrigerant does the Trane 4TWV0048A1 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 · XV20I

Trane 4TWV0048A1

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

Ranks #27 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,252 a year to run in a mixed climate like Atlanta.

SEER2: 19.5 Cooling efficiency over a season
Excellent · beats 91%
HSPF2: 8.5 Heating efficiency over a season
Below average · beats 38%
EER2: 11.7 Cooling efficiency on a 95°F day
Average · beats 43%
Heat at 5°F: - Not reported by the maker

A good fit if…

You want low cooling bills - its SEER2 beats 91% of central heat pumps.
You want steady temperatures and quiet running - the compressor varies its speed.

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
Also sold as	American Standard
Outdoor unit model	4TWV0048A1
Series	XV20I
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	May 3, 2023
Last certified	May 15, 2023
Cooling
SEER2Seasonal efficiency, higher is better	19.5 (range 19.5)
EER2Efficiency at 95°F outdoors	11.7
Cooling capacity	46,000 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	8.5
Capacity at 47°F	40,500 BTU/h
Capacity at 17°F	35,400 BTU/h
Capacity at 5°F	-
COP at 5°F2.0 = twice as efficient as a space heater	-
ENERGY STAR cold climate	No

Heating output as it gets colder

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with TAM9A0C60V51 at the standard test temperatures, in BTU/h:

Certified matchups1 indoor units

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.
TAM9A0C60V51	19.5	11.7	8.5	-	10093500

Same unit, other model numbers1

These model numbers have exactly the same certified ratings and matchups as the Trane 4TWV0048A1: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

American Standard 4A6V0048A1

Yearly running cost in 10 large cities$1,109-$3,001

Phoenix, AZ$1,372/yr
Miami, FL$1,109/yr
Houston, TX$1,230/yr
Atlanta, GA$1,252/yr
Los Angeles, CA$1,220/yr
New York, NY$3,001/yr
Chicago, IL$2,438/yr
Denver, CO$2,028/yr
Seattle, WA$1,248/yr
Minneapolis, MN$2,511/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 4TWV0048A1?: The Trane 4TWV0048A1 is rated at up to 19.5 SEER2 and 11.7 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 4TWV0048A1 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 4TWV0048A1 cost to run per year?: At its rated efficiency it costs about $1,109-$3,001 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,372 in Phoenix and $2,511 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Is the Trane 4TWV0048A1 the same as the American Standard 4A6V0048A1?: 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 4TWV0048A1?: ENERGY STAR lists 1 certified combination for this outdoor unit. The highest-rated one uses TAM9A0C60V51.
What refrigerant does the Trane 4TWV0048A1 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 $1,364/yrYou save $918/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 4TWV0048A1

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: $1,364
Current system, per year: $2,282
You save per year: $918
Payback: 19.1 years
Net after 10 years: -$8,321

Cooling $830Heating $534Electricity used: 8,525 kWhSaved vs. a minimum-efficiency heat pump: $373

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

GE NS22H48MA4-**A19.5 SEER2 · 8.5 HSPF2
American Standard 4A6V0X60A1 · cold climate19.5 SEER2 · 8.5 HSPF2
BOREAL ENX60HPJ132OA · cold climate19.0 SEER2 · 10.5 HSPF2
AIREASE 4SHP22LX148P-**A19.5 SEER2 · 8.5 HSPF2
GREE FXU60HP230V1R32AO · cold climate19.0 SEER2 · 10.5 HSPF2
Keeprite C5H0V48*K*AAA · cold climate19.5 SEER2 · 9.5 HSPF2
GREE GUD60W2/NHE-D(U) · cold climate19.0 SEER2 · 10.5 HSPF2
Carrier 27VNA048A*030 · cold climate19.5 SEER2 · 9.5 HSPF2

See all 319 4 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of May 15, 2023. How we use the data.