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      3.5-ton central heat pump · 17 Multi-Speed Heat Pump

      Trane 5TWR7048A1

      Average cooling and heating efficiency for a 3.5-ton central heat pump, and certified for cold climates.

      Ranks #31 of 138 3.5 ton central heat pumps for cooling efficiency, and costs about $1,274 a year to run in a mixed climate like Atlanta.

      SEER2
      17.1 Cooling efficiency over a season
      Average · beats 53%
      HSPF2
      9.4 Heating efficiency over a season
      Average · beats 64%
      EER2
      12.0 Cooling efficiency on a 95°F day
      Average · beats 64%
      Heat at 5°F
      33,800 BTU/h73% of its 47°F output
      Very good · beats 83%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 33,800 BTU/h at 5°F.
      • You want a choice of indoor units - 231 certified pairings.

      Think twice if…

      • Nothing stands out - its ratings have no weak spot for its class.

      Calculate my running cost

      Details

      Specifications3.5 ton, R-454B
      General
      BrandTrane
      Also sold asAmerican Standard
      Outdoor unit model5TWR7048A1
      Series17 Multi-Speed Heat Pump
      TypeCentral heat pump
      Nominal size3.5 ton
      CompressorVariable-speed units run longer at low powerTwo-stage
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceJanuary 15, 2025
      Last certifiedJune 29, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better17.1 (range 15.2-17.1)
      EER2Efficiency at 95°F outdoors11.2-12.5
      Cooling capacity43,000-44,500 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.5-9.4
      Capacity at 47°F43,500-46,000 BTU/h
      Capacity at 17°F28,800-41,000 BTU/h
      Capacity at 5°F31,800-33,800 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.10-2.26
      ENERGY STAR cold climateYes
      Heating output as it gets colder73% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with 5TAM5D07AC51 at the standard test temperatures, in BTU/h:

      Certified matchups231 indoor units

      The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 231 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      5TAM5D07AC51-17.112.09.432,400216763987
      5PX*C009AS3S8X1C080M5PSC17.112.09.032,200216763929
      5PX*C009AS3L8V1C100U5VSB17.112.09.032,000216763923
      5PX*C009AS3 · cold climateS8X1C100M5PSC17.112.09.032,200216763931
      5PX*C009AS3 · cold climateS9V2C100U5PSC17.112.09.032,400216763935
      5PX*C009AS3S9V2C080U5PSC17.112.59.032,000216763933
      5PX*D008AS3 · cold climateS8X1C100M5PSC17.111.79.033,000216763949
      5PX*D008AS3L8V1C100U5VSB17.112.09.032,600216763945
      5PX*D008AS3S9V2D120U5VSB17.112.09.032,400216763947
      5PX*D008AS3S9V2C080U5PSC17.112.09.032,600216763953
      5PX*D008AS3S8X1D120M5PSC17.112.09.032,800216763951
      5PX*D010AS3S9V2D120U5VSB17.112.59.032,000216763957
      5PX*D008AS3S9V2D120U5PSC17.112.09.032,400216763955
      5PX*D010AS3 · cold climateS9V2C100U4VSB17.112.09.032,000216763963
      5PX*D010AS3 · cold climateS9V2C100U5PSC17.112.09.032,000216763961
      5PX*D010AS3S9V2D120U5PSC17.112.59.032,000216763959
      5PX*D010AS3S8X1C100M5PSC17.112.09.032,200216763965
      5PX*D010AS3S9V2C080U5PSC17.112.59.031,800216763969
      5PX*D010AS3L8V1C100U5VSB17.112.59.032,000216763977
      5PX*D010AS3S8X1C080M5PSC17.112.09.032,200216763971
      5PX*D010AS3S8X1D120M5PSC17.112.09.032,400216763967
      5PX*DD10AS3S8X1D120M5PSC17.111.79.032,600216763981
      5PX*DD10AS3S8X1C080M5PSC17.111.79.032,600216763979
      5PX*DD10AS3S9V2D120D5PSC17.112.09.032,400216763983
      5TEM6D06AV41+TDR-17.112.59.031,800216763993
      5TAMXD06AV41-17.112.09.032,400216763989
      5TAMXD07AV51 · cold climate-17.112.09.032,000216763991
      5TEMCD07AV51+TDR-17.112.59.031,800216763999
      5TEM6D07AV51+TDR-17.112.59.031,800216763995
      5TEMCD06AV41+TDR-17.112.59.031,800216763997
      5TXCC009AS3*UHMC100CCV417.112.09.032,200216764003
      5TXCD010AS3S8X1C100M5PSC17.112.09.032,200216764013
      5TXCD008AS3 · cold climate*UHMC100CCV417.111.79.032,800216764005
      5TXCD010AS3S8X1C080M5PSC17.112.09.032,200216764011
      5TXCD010AS3*UHMC100CCV417.112.09.032,000216764017
      5TXCD010AS3S9V2D120U5PSC17.112.59.032,000216764023
      5TXCD010AS3*UHMD120CCV517.112.09.032,000216764019
      5TXCD010AS3S8X1D120M5PSC17.112.09.032,400216764015
      5TXCD010AS3S9V2D120U5VSB17.112.59.032,000216764021
      5TXCD010AS3L8V1C100U5VSB17.112.59.032,000216764027
      5TXCD010AS3S9V2C080U5PSC17.112.59.032,000216764029
      5TXCD010AS3S9V2C100U4VSB17.112.09.032,000216764031
      5TXCD010AS3S9V2C100U5PSC17.112.09.032,000216764025
      5PX*C009AS3S8X2C080M5PTC17.112.09.032,200216764757
      5PX*C009AS3 · cold climateS8X2C100M5PTC17.112.09.032,200216764759
      5PX*C009AS3S8X1C080M5PTC17.112.09.032,200216764765
      5PX*C009AS3S8X2C080M5PSC17.112.09.032,200216764761
      5PX*C009AS3 · cold climateS8X2C100M5PSC17.112.09.032,200216764763
      5PX*C009AS3 · cold climateS8X1C100M5PTC17.112.09.032,200216764767
      5PX*D008AS3S8X2D120M5PSC17.112.09.032,800216764783
      5PX*D008AS3 · cold climateS8X2C100M5PTC17.111.79.033,000216764781
      5PX*D008AS3 · cold climateS8X2C100M5PSC17.111.79.033,000216764785
      5PX*D008AS3S8X2D120M5PTC17.112.09.032,800216764787
      5PX*D010AS3S8X2C100M5PTC17.112.09.032,200216764793
      5PX*D008AS3 · cold climateS8X1C100M5PTC17.111.79.033,000216764789
      5PX*D008AS3S8X1D120M5PTC17.112.09.032,800216764791
      5PX*D010AS3S8X2C100M5PSC17.112.09.032,200216764797
      5PX*D010AS3S8X2C080M5PSC17.112.09.032,200216764799
      5PX*D010AS3S8X2C080M5PTC17.112.09.032,200216764795
      5PX*D010AS3S8X2D120M5PSC17.112.09.032,400216764801
      Same unit, other model numbers1

      These model numbers have exactly the same certified ratings and matchups as the Trane 5TWR7048A1: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

      Yearly running cost in 10 large cities$1,192-$3,003

      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 5TWR7048A1?
      The Trane 5TWR7048A1 is rated at up to 17.1 SEER2 and 12.0 EER2 for cooling and up to 9.4 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 231 certified matchups SEER2 ranges from 15.2-17.1.
      Is the Trane 5TWR7048A1 good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 33,800 BTU/h at 5°F with a COP of 2.26, so it is still 2.3 times as efficient as electric resistance heat at that temperature.
      How much does the Trane 5TWR7048A1 cost to run per year?
      At its rated efficiency it costs about $1,192-$3,003 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,444 in Phoenix and $2,489 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the Trane 5TWR7048A1 the same as the American Standard 5A6H7048A1?
      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 5TWR7048A1?
      ENERGY STAR lists 231 certified combinations for this outdoor unit. The highest-rated ones use 5TAM5D07AC51, 5PX*C009AS3, 5PX*D008AS3.
      What refrigerant does the Trane 5TWR7048A1 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 $1,420/yrYou save $831/yrSee details ↓
      1. Where you live
      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.

      2. The heat pump Trane 5TWR7048A1
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,420
      Current system, per year
      $2,251
      You save per year
      $831
      Payback
      19.8 years
      Net after 10 years
      -$8,185

      Cooling $895Heating $524Electricity used: 8,873 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 3.5 ton models

      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.