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      2.5-ton central heat pump · D5F Series

      Arcoaire D5CSRAH30AAK

      Excellent cooling efficiency and very good heating efficiency for a 2.5-ton central heat pump, but not rated for cold climates.

      Ranks #3 of 199 2.5 ton central heat pumps for cooling efficiency, and costs about $810 a year to run in a mixed climate like Atlanta.

      SEER2
      20.5 Cooling efficiency over a season
      Excellent · beats 96%
      HSPF2
      9.5 Heating efficiency over a season
      Very good · beats 70%
      EER2
      12.0 Cooling efficiency on a 95°F day
      Average · beats 64%
      Heat at 5°F
      20,400 BTU/h67% of its 47°F output
      Average · beats 58%

      A good fit if…

      • You want low cooling bills - its SEER2 beats 96% of central heat pumps.
      • It will heat most of the year - its HSPF2 beats 70% of central heat pumps.
      • You want steady temperatures and quiet running - the compressor varies its speed.
      • You want a choice of indoor units - 25 certified pairings.

      Think twice if…

      • You often see nights below 0°F - it is not cold-climate certified.

      Calculate my running cost

      Details

      Specifications2.5 ton, R-454B
      General
      BrandArcoaire
      Also sold asComfortmaker, Day & Night, Heil, Keeprite, Kenmore, Midea, Tempstar, Smart Comfort, Airquest, LPS Legacy, Viessmann, Grandaire
      Outdoor unit modelD5CSRAH30AAK
      SeriesD5F Series
      TypeCentral heat pump
      Nominal size2.5 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceNovember 15, 2018
      Last certifiedNovember 24, 2025
      Cooling
      SEER2Seasonal efficiency, higher is better20.5 (range 17.0-20.5)
      EER2Efficiency at 95°F outdoors11.0-12.0
      Cooling capacity30,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.8-9.5
      Capacity at 47°F30,000 BTU/h
      Capacity at 17°F19,400-20,400 BTU/h
      Capacity at 5°F20,000-20,400 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.03-2.10
      ENERGY STAR cold climateNo
      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 D5FSHAH30XAK at the standard test temperatures, in BTU/h:

      Certified matchups25 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 unitSEER2EER2HSPF2Heat @5°FAHRI ref.
      D5FSHAH30XAK ARCOAIRE20.512.09.520,000215413215
      D5FSHAH30XAK COMFORTMAKER20.512.09.520,000215413229
      D5FSHAH30XAK DAY & NIGHT20.512.09.520,000215413243
      D5FSHAH30XAK HEIL20.512.09.520,000215413257
      D5FSHAH30XAK KEEPRITE20.512.09.520,000215413271
      D5FSHAH30XAK KENMORE20.512.09.520,000215413285
      D5FSHAH30XAK MIDEA20.512.09.520,000215413299
      D5FSHAH30XAK TEMPSTAR20.512.09.520,000215413313
      D5FSHAH30XAK SMART COMFORT20.512.09.520,000215413327
      D5FSHAH30XAK AIRQUEST20.512.09.520,000215413341
      D5FSHAH30XAK LPS Legacy20.512.09.520,000215413355
      D5FSHAH30XAK Viessmann20.512.09.520,000217178807
      D5FSAAH30XBK17.011.08.820,400215413032
      D5FSAAH30XBK17.011.08.820,400215413034
      D5FSAAH30XBK17.011.08.820,400215413036
      D5FSAAH30XBK17.011.08.820,400215413038
      D5FSAAH30XBK17.011.08.820,400215413040
      D5FSAAH30XBK17.011.08.820,400215413042
      D5FSAAH30XBK17.011.08.820,400215413044
      D5FSAAH30XBK17.011.08.820,400215413046
      D5FSAAH30XBK17.011.08.820,400215413048
      D5FSAAH30XBK17.011.08.820,400215413050
      D5FSAAH30XBK17.011.08.820,400215413052
      D5FSAAH30XBK17.011.08.820,400215413054
      D5FSAAH30XBK17.011.08.820,400217178758
      Yearly running cost in 10 large cities$690-$1,965

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

      Questions5
      What is the SEER2 rating of the Arcoaire D5CSRAH30AAK?
      The Arcoaire D5CSRAH30AAK is rated at up to 20.5 SEER2 and 12.0 EER2 for cooling and up to 9.5 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 25 certified matchups SEER2 ranges from 17.0-20.5.
      Is the Arcoaire D5CSRAH30AAK 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 2.5-ton model.
      How much does the Arcoaire D5CSRAH30AAK cost to run per year?
      At its rated efficiency it costs about $690-$1,965 a year in electricity in large U.S. cities, depending on climate and local rates - for example $867 in Phoenix and $1,654 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 Arcoaire D5CSRAH30AAK?
      ENERGY STAR lists 25 certified combinations for this outdoor unit. The highest-rated ones use ARCOAIRE D5FSHAH30XAK, COMFORTMAKER D5FSHAH30XAK, DAY & NIGHT D5FSHAH30XAK.
      What refrigerant does the Arcoaire D5CSRAH30AAK 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 $869/yrYou save $678/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 Arcoaire D5CSRAH30AAK
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $869
      Current system, per year
      $1,547
      You save per year
      $678
      Payback
      17.0 years
      Net after 10 years
      -$4,719

      Cooling $515Heating $354Electricity used: 5,430 kWhSaved vs. a minimum-efficiency heat pump: $318

      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 2.5 ton models

      See all 199 2.5 ton central heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of November 24, 2025. How we use the data.