What is the SEER2 rating of the American Standard N5HP5048A1?

The American Standard N5HP5048A1 is rated at up to 16.0 SEER2 and 12.0 EER2 for cooling and up to 8.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 56 certified matchups SEER2 ranges from 15.2-16.0.

Is the American Standard N5HP5048A1 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 American Standard N5HP5048A1 cost to run per year?

At its rated efficiency it costs about $1,304-$3,317 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,584 in Phoenix and $2,753 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 American Standard N5HP5048A1?

ENERGY STAR lists 56 certified combinations for this outdoor unit. The highest-rated ones use A5AHV007A1D3+TDR+TSTAT, A5AHV006A1D3+TDR+TSTAT, 5TXCD010AS3+TSTAT.

3.5-ton central heat pump · Bronze 15

American Standard N5HP5048A1

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

Ranks #69 of 138 3.5 ton central heat pumps for cooling efficiency, and costs about $1,404 a year to run in a mixed climate like Atlanta.

SEER2: 16.0 Cooling efficiency over a season
Below average · beats 26%
HSPF2: 8.1 Heating efficiency over a season
Below average · beats 20%
EER2: 12.0 Cooling efficiency on a 95°F day
Average · beats 64%
Heat at 5°F: 22,400 BTU/h53% of its 47°F output
Very good · beats 85%

A good fit if…

You want a choice of indoor units - 56 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	American Standard
Also sold as	Trane
Outdoor unit model	N5HP5048A1
Series	Bronze 15
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	May 26, 2026
Last certified	June 29, 2026
Cooling
SEER2Seasonal efficiency, higher is better	16.0 (range 15.2-16.0)
EER2Efficiency at 95°F outdoors	11.7-12.0
Cooling capacity	43,500-45,500 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	7.8-8.1
Capacity at 47°F	41,500-42,500 BTU/h
Capacity at 17°F	28,600-29,000 BTU/h
Capacity at 5°F	22,000-22,400 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.14-2.27
ENERGY STAR cold climate	No

Heating output as it gets colder53% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with A5AHV007A1D3+TDR+TSTAT at the standard test temperatures, in BTU/h:

Certified matchups56 indoor units

The same outdoor unit scores differently with each indoor unit and furnace. 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.
A5AHV007A1D3+TDR+TSTAT	-	16.0	12.0	8.1	22,200	218470568
A5AHV006A1D3+TDR+TSTAT	-	16.0	12.0	8.1	22,200	218470567
5TXCD010AS3+TSTAT	A951X120DU5SA	16.0	12.0	8.1	22,200	218470565
5TXCD010AS3+TSTAT+P0V0C000M50SD	-	16.0	12.0	8.1	22,000	218470563
5TXCD010AS3+TSTAT+P0V0D000M50SD	-	16.0	12.0	8.1	22,200	218470562
5TXCD010AS3+TSTAT	A801X120DM5SD	16.0	12.0	8.1	22,200	218470561
5TXCD010AS3+TSTAT	A952V120DU5SB	16.0	12.0	8.1	22,200	218470559
5PX*D010AS3+TSTAT	A951X120DU5SA	16.0	12.0	8.1	22,200	218470538
5PX*D010AS3+TSTAT	A952V120DU5SB	16.0	12.0	8.1	22,200	218470537
5PX*D010AS3+TSTAT	A801X120DM5SD	16.0	12.0	8.1	22,200	218470535
5PX*D010AS3+TSTAT+P0V0D000M50SD	-	16.0	12.0	8.1	22,200	218470533
5PX*D010AS3+TSTAT+P0V0C000M50SD	-	16.0	12.0	8.1	22,000	218470532
5PX*D008AS3+TSTAT+P0V0D000M50SD	-	16.0	12.0	8.1	22,200	218470525
5PX*D008AS3+TSTAT+P0V0C000M50SD	-	16.0	12.0	8.1	22,200	218470524
A5AHV007A1D3+TDR+TSTAT	-	16.0	12.0	8.1	22,200	218469864
A5AHV006A1D3+TDR+TSTAT	-	16.0	12.0	8.1	22,200	218469863
5TXCD010AS3+TSTAT	A951X120DU5SA	16.0	12.0	8.1	22,200	218469861
5TXCD010AS3+TSTAT+P0V0C000M50SD	-	16.0	12.0	8.1	22,000	218469859
5TXCD010AS3+TSTAT+P0V0D000M50SD	-	16.0	12.0	8.1	22,200	218469858
5TXCD010AS3+TSTAT	A801X120DM5SD	16.0	12.0	8.1	22,200	218469857
5TXCD010AS3+TSTAT	A952V120DU5SB	16.0	12.0	8.1	22,200	218469855
5PX*D010AS3+TSTAT	A951X120DU5SA	16.0	12.0	8.1	22,200	218469833
5PX*D010AS3+TSTAT	A952V120DU5SB	16.0	12.0	8.1	22,200	218469832
5PX*D010AS3+TSTAT	A801X120DM5SD	16.0	12.0	8.1	22,200	218469830
5PX*D010AS3+TSTAT+P0V0D000M50SD	-	16.0	12.0	8.1	22,200	218469828
5PX*D010AS3+TSTAT+P0V0C000M50SD	-	16.0	12.0	8.1	22,000	218469827
5PX*D008AS3+TSTAT+P0V0D000M50SD	-	16.0	12.0	8.1	22,200	218469820
5PX*D008AS3+TSTAT+P0V0C000M50SD	-	16.0	12.0	8.1	22,200	218469819
5TXCD010AS3+TSTAT	A952V100CU5SB	15.5	12.0	8.1	22,200	218470564
5PX*D010AS3+TSTAT	A952V100CU5SB	15.5	12.0	8.1	22,200	218470534
5PX*C007AS3+TSTAT+P0V0C000M50SD	-	15.5	12.0	8.1	22,400	218470515
5TXCD010AS3+TSTAT	A952V100CU5SB	15.5	12.0	8.1	22,200	218469860
5PX*D010AS3+TSTAT	A952V100CU5SB	15.5	12.0	8.1	22,200	218469829
5PX*C007AS3+TSTAT+P0V0C000M50SD	-	15.5	12.0	8.1	22,400	218469810
5TXCC009AS3+TSTAT	A951X100CU5SA	15.5	12.0	8.0	22,400	218470550
5PX*D008AS3+TSTAT	A952V120DU5SB	15.5	12.0	8.0	22,400	218470530
5PX*C009AS3+TSTAT	A951X100CU5SA	15.5	12.0	8.0	22,400	218470516
5TXCC009AS3+TSTAT	A951X100CU5SA	15.5	12.0	8.0	22,400	218469846
5PX*D008AS3+TSTAT	A952V120DU5SB	15.5	12.0	8.0	22,400	218469825
5PX*C009AS3+TSTAT	A951X100CU5SA	15.5	12.0	8.0	22,400	218469811
5TXCD010AS3+TSTAT	A951X080CU5SA	15.5	12.0	7.8	22,000	218470560
5TXCC009AS3+TSTAT	A951X080CU5SA	15.5	12.0	7.8	22,000	218470549
5PX*D010AS3+TSTAT	A951X080CU5SA	15.5	12.0	7.8	22,000	218470536
5PX*C009AS3+TSTAT	A951X080CU5SA	15.5	12.0	7.8	22,000	218470517
5TXCD010AS3+TSTAT	A951X080CU5SA	15.5	12.0	7.8	22,000	218469856
5TXCC009AS3+TSTAT	A951X080CU5SA	15.5	12.0	7.8	22,000	218469845
5PX*D010AS3+TSTAT	A951X080CU5SA	15.5	12.0	7.8	22,000	218469831
5PX*C009AS3+TSTAT	A951X080CU5SA	15.5	12.0	7.8	22,000	218469812
A5AHC007A1D3+TDR+TSTAT	-	15.2	12.0	8.1	22,000	218470566
5PX*DD10AS3+TSTAT	A951X120DD5SA	15.2	11.7	8.1	22,400	218470539
A5AHC007A1D3+TDR+TSTAT	-	15.2	12.0	8.1	22,000	218469862
5PX*DD10AS3+TSTAT	A951X120DD5SA	15.2	11.7	8.1	22,400	218469834
A5AHV005A1D3+TDR+TSTAT	-	15.2	11.7	8.0	22,200	218470717
A5AHV005A1D3+TDR+TSTAT	-	15.2	11.7	8.0	22,200	218470020
5PX*DD10AS3+TSTAT	A801X080CM5SD	15.2	11.7	7.8	22,200	218470714
5PX*DD10AS3+TSTAT	A801X080CM5SD	15.2	11.7	7.8	22,200	218470017

Yearly running cost in 10 large cities$1,304-$3,317

Phoenix, AZ$1,584/yr
Miami, FL$1,304/yr
Houston, TX$1,419/yr
Atlanta, GA$1,404/yr
Los Angeles, CA$1,359/yr
New York, NY$3,317/yr
Chicago, IL$2,686/yr
Denver, CO$2,227/yr
Seattle, WA$1,364/yr
Minneapolis, MN$2,753/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 American Standard N5HP5048A1?: The American Standard N5HP5048A1 is rated at up to 16.0 SEER2 and 12.0 EER2 for cooling and up to 8.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 56 certified matchups SEER2 ranges from 15.2-16.0.
Is the American Standard N5HP5048A1 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 American Standard N5HP5048A1 cost to run per year?: At its rated efficiency it costs about $1,304-$3,317 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,584 in Phoenix and $2,753 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 American Standard N5HP5048A1?: ENERGY STAR lists 56 certified combinations for this outdoor unit. The highest-rated ones use A5AHV007A1D3+TDR+TSTAT, A5AHV006A1D3+TDR+TSTAT, 5TXCD010AS3+TSTAT.
What refrigerant does the American Standard N5HP5048A1 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 $1,560/yrYou save $694/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 American Standard N5HP5048A1

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: $1,560
Current system, per year: $2,254
You save per year: $694
Payback: 23.8 years
Net after 10 years: -$9,561

Cooling $979Heating $581Electricity used: 9,748 kWhSaved vs. a minimum-efficiency heat pump: $163

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

Ameristar A5HP5048A116.0 SEER2 · 8.1 HSPF2
DuraSTAR DRHP15B42AJ2AN · cold climate16.0 SEER2 · 8.1 HSPF2
Trane 5TWX5048A116.0 SEER2 · 8.5 HSPF2
Friedrich FRP15AY42AJ2N · cold climate16.0 SEER2 · 8.1 HSPF2
Trane 5TWR6048A116.0 SEER2 · 8.5 HSPF2
Friedrich FWP15AY42AJ2N · cold climate16.0 SEER2 · 8.1 HSPF2
Trane 5TWR5048A116.0 SEER2 · 8.5 HSPF2
Fujitsu FOP1542TJAYNA · cold climate16.0 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 June 29, 2026. How we use the data.