What is the SEER2 rating of the Trane 5TWR6048A1?

The Trane 5TWR6048A1 is rated at up to 16.0 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; across its 127 certified matchups SEER2 ranges from 15.2-16.0.

Is the Trane 5TWR6048A1 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 3.5-ton model.

How much does the Trane 5TWR6048A1 cost to run per year?

At its rated efficiency it costs about $1,289-$3,245 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,561 in Phoenix and $2,690 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Is the Trane 5TWR6048A1 the same as the American Standard 5A6H6048A1?

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 5TWR6048A1?

ENERGY STAR lists 127 certified combinations for this outdoor unit. The highest-rated ones use 5TEMCD06AV41+TDR+TSTAT, 5TXCD010AS3+TSTAT, 5TXCD010AS3+TSTAT+P0V0D000M50SD.

3.5-ton central heat pump · 16 Single-Stage Heat Pump

Trane 5TWR6048A1

Below average cooling and heating efficiency for a 3.5-ton central heat pump, but not rated for cold climates.

Ranks #65 of 138 3.5 ton central heat pumps for cooling efficiency, and costs about $1,377 a year to run in a mixed climate like Atlanta.

SEER2: 16.0 Cooling efficiency over a season
Below average · beats 26%
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: 22,600 BTU/h52% of its 47°F output
Very good · beats 88%

A good fit if…

You want a choice of indoor units - 127 certified pairings.

Think twice if…

You often see nights below 0°F - it is not cold-climate certified.
Cooling cost matters most - its SEER2 is below average for central heat pumps.
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

Specifications3.5 ton, R-454B

General
Brand	Trane
Also sold as	American Standard
Outdoor unit model	5TWR6048A1
Series	16 Single-Stage Heat Pump
Type	Central heat pump
Nominal size	3.5 ton
CompressorVariable-speed units run longer at low power	Single stage
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	February 16, 2026
Last certified	September 16, 2026
Cooling
SEER2Seasonal efficiency, higher is better	16.0 (range 15.2-16.0)
EER2Efficiency at 95°F outdoors	11.5-12.0
Cooling capacity	43,000-46,500 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	7.8-8.5
Capacity at 47°F	41,500-43,500 BTU/h
Capacity at 17°F	28,200-29,200 BTU/h
Capacity at 5°F	21,800-22,600 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.10-2.30
ENERGY STAR cold climate	No

Heating output as it gets colder52% 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 matchups127 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 127 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	-	16.0	12.0	8.5	22,000	218109016
5TXCD010AS3+TSTAT	S8V2D120M5PDB	16.0	12.0	8.1	22,000	218109198
5TXCD010AS3+TSTAT	S8V2D120M5PCB	16.0	12.0	8.1	22,000	218109196
5TXCD010AS3+TSTAT+P0V0D000M50SD	-	16.0	12.0	8.1	21,800	218109186
5TXCD010AS3+TSTAT	S8X2D120M5PTC	16.0	12.0	8.1	22,200	218109168
5TXCD010AS3+TSTAT	S8X2D120M5PSC	16.0	12.0	8.1	22,200	218109166
5TXCD010AS3+TSTAT	S8X1D120M5PTC	16.0	12.0	8.1	22,200	218109158
5TXCD010AS3+TSTAT	S8X1D120M5PSC	16.0	12.0	8.1	22,200	218109156
5TXCD008AS3+TSTAT+P0V0D000M50SD	-	16.0	12.0	8.1	22,000	218109120
5TXCC009AS3+TSTAT+P0V0C000M50SD	-	16.0	12.0	8.1	21,800	218109114
5TXCC009AS3+TSTAT	S9V2C080U5VSB	16.0	12.0	8.1	22,200	218109092
5TEMCD07AV51+TDR+TSTAT	-	16.0	12.0	8.1	21,800	218109018
5TEM6D07AV51+TDR+TSTAT	-	16.0	12.0	8.1	21,800	218109012
5TEM6D06AV41+TDR+TSTAT	-	16.0	12.0	8.1	21,800	218109010
5PX*D010AS3+TSTAT	S8V2D120M5PCB	16.0	12.0	8.1	22,000	218108982
5PX*D010AS3+TSTAT	S8X2D120M5PTC	16.0	12.0	8.1	22,200	218108978
5PX*D010AS3+TSTAT	S8X2D120M5PSC	16.0	12.0	8.1	22,200	218108976
5PX*D010AS3+TSTAT	S8X1D120M5PTC	16.0	12.0	8.1	22,200	218108966
5PX*D010AS3+TSTAT	S8X1D120M5PSC	16.0	12.0	8.1	22,200	218108964
5PX*D010AS3+TSTAT	S9X1D120U5PSB	16.0	12.0	8.1	22,000	218108956
5PX*D010AS3+TSTAT	S9X2D120U5PSB	16.0	12.0	8.1	22,000	218108954
5PX*D010AS3+TSTAT+P0V0C000M50SD	-	16.0	12.0	8.1	21,800	218108948
5PX*D010AS3+TSTAT+P0V0D000M50SD	-	16.0	12.0	8.1	21,800	218108946
5PX*D010AS3+TSTAT	S8V2D120M5PDB	16.0	12.0	8.1	22,000	218108942
5PX*D008AS3+TSTAT+P0V0D000M50SD	-	16.0	12.0	8.1	22,000	218108926
5PX*C009AS3+TSTAT+P0V0C000M50SD	-	16.0	12.0	8.1	21,800	218108870
5PX*C009AS3+TSTAT	S9V2C080U5VSB	16.0	12.0	8.1	22,200	218108866
5PX*DD10AS3+TSTAT+P0V0D000M50SD	-	16.0	12.0	8.1	22,000	218395758
5TEMCD07BV51+TDR+TSTAT	-	16.0	12.0	8.1	22,200	218788173
5TXCD008AS3+TSTAT+P0V0C000M50SD	-	16.0	12.0	8.0	22,000	218109118
5PX*D010AS3+TSTAT	L8V1C100U5VSB	16.0	12.0	8.0	22,000	218108950
5PX*D008AS3+TSTAT+P0V0C000M50SD	-	16.0	12.0	8.0	22,000	218108924
5PX*D010AS3+TSTAT	S8V2C100M5PCB	16.0	12.0	8.0	22,200	218395748
5PX*D010AS3+TSTAT	S9V2C100U4VSB	16.0	12.0	8.0	22,000	218395744
5PX*D010AS3+TSTAT	S8V2C100M5PDB	16.0	12.0	8.0	22,200	218395742
5TXCD010AS3+TSTAT+P0V0C000M50SD	-	16.0	12.0	7.8	21,800	218109184
5TXCD010AS3+TSTAT	L8V1C100U5VSB	16.0	12.0	7.8	22,000	218109182
5TXCD010AS3+TSTAT	*UHMD120CCV5	15.2	11.7	8.1	21,800	218109180
5TXCD010AS3+TSTAT	S9X2D120U5PSB	15.2	12.0	8.1	22,000	218109178
5TXCD010AS3+TSTAT	S9X1D120U5PSB	15.2	12.0	8.1	22,000	218109176
5TXCD010AS3+TSTAT	S9V2C100U5VSB	15.2	11.7	8.1	22,000	218109174
5TXCD010AS3+TSTAT	S9V2C100U4VSB	15.2	11.7	8.1	22,000	218109172
5TEMCD05AV41+TDR+TSTAT	-	15.2	12.0	8.1	21,800	218109014
5TEM4D07AC51+TDR+TSTAT	-	15.2	12.0	8.1	21,800	218109006
5PX*DD10AS3+TSTAT+P0V0C000M50SD	-	15.2	11.7	8.1	21,800	218108992
5PX*D010AS3+TSTAT	S9V2C080U5VSB	15.2	11.7	8.1	22,000	218108980
5PX*D010AS3+TSTAT	*UHMD120CCV5	15.2	12.0	8.1	21,800	218108952
5PX*D010AS3+TSTAT	S9V2C100U5VSB	15.2	11.7	8.1	22,000	218108944
5TEMCD04AV31+TDR+TSTAT	-	15.2	12.0	8.1	21,800	218112083
5TXCD010AS3+TSTAT	S9X2C100U5PSB	15.2	12.0	8.1	22,200	218395832
5TXCD010AS3+TSTAT	*UHMC100CCV4	15.2	11.7	8.1	22,400	218395830
5TXCD010AS3+TSTAT	S9V2D120U5VSB	15.2	12.0	8.1	22,200	218395828
5TXCD010AS3+TSTAT	S9X1C100U5PSB	15.2	12.0	8.1	22,200	218395826
5TXCD008AS3+TSTAT	S9X1D120U5PSB	15.2	11.7	8.1	22,200	218395824
5TXCD008AS3+TSTAT	S9V2C100U4VSB	15.2	11.7	8.1	22,600	218395818
5TXCD008AS3+TSTAT	S9X2D120U5PSB	15.2	11.7	8.1	22,200	218395802
5TXCC009AS3+TSTAT	S9X2C100U5PSB	15.2	12.0	8.1	22,000	218395796
5TXCC009AS3+TSTAT	S9V2C100U4VSB	15.2	12.0	8.1	22,200	218395790
5TXCC009AS3+TSTAT	S9V2C100U5VSB	15.2	12.0	8.1	22,200	218395788
5TXCC009AS3+TSTAT	S9X1C100U5PSB	15.2	12.0	8.1	22,000	218395784

Same unit, other model numbers1

These model numbers have exactly the same certified ratings and matchups as the Trane 5TWR6048A1: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

American Standard 5A6H6048A1

Yearly running cost in 10 large cities$1,289-$3,245

Phoenix, AZ$1,561/yr
Miami, FL$1,289/yr
Houston, TX$1,398/yr
Atlanta, GA$1,377/yr
Los Angeles, CA$1,332/yr
New York, NY$3,245/yr
Chicago, IL$2,626/yr
Denver, CO$2,176/yr
Seattle, WA$1,331/yr
Minneapolis, MN$2,690/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 5TWR6048A1?: The Trane 5TWR6048A1 is rated at up to 16.0 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; across its 127 certified matchups SEER2 ranges from 15.2-16.0.
Is the Trane 5TWR6048A1 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 3.5-ton model.
How much does the Trane 5TWR6048A1 cost to run per year?: At its rated efficiency it costs about $1,289-$3,245 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,561 in Phoenix and $2,690 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Is the Trane 5TWR6048A1 the same as the American Standard 5A6H6048A1?: 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 5TWR6048A1?: ENERGY STAR lists 127 certified combinations for this outdoor unit. The highest-rated ones use 5TEMCD06AV41+TDR+TSTAT, 5TXCD010AS3+TSTAT, 5TXCD010AS3+TSTAT+P0V0D000M50SD.
What refrigerant does the Trane 5TWR6048A1 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 $1,535/yrYou save $718/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 5TWR6048A1

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: $1,535
Current system, per year: $2,252
You save per year: $718
Payback: 23.0 years
Net after 10 years: -$9,322

Cooling $968Heating $567Electricity used: 9,591 kWhSaved vs. a minimum-efficiency heat pump: $191

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 3.5 ton models

Friedrich RD16AY48AJVC · cold climate16.0 SEER2 · 8.5 HSPF2
American Standard 5HPL5048A1 · cold climate16.0 SEER2 · 8.1 HSPF2
MRCOOL MVP-48-HP-C-230A00-O · cold climate16.0 SEER2 · 9.0 HSPF2
American Standard N5HP5042A116.0 SEER2 · 8.1 HSPF2
Innovair SOV48H2BA · cold climate16.0 SEER2 · 9.0 HSPF2
American Standard N5HP5048A116.0 SEER2 · 8.1 HSPF2
DIRECT AIR DIRM4-48CS19-OU · cold climate16.0 SEER2 · 9.0 HSPF2
Ameristar A5HP5048A116.0 SEER2 · 8.1 HSPF2

See all 138 3.5 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 16, 2026. How we use the data.