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      2-ton central heat pump · Infinity 20 VS Heat Pump

      Carrier 27VNA024A*030

      Average cooling and heating efficiency for a 2-ton central heat pump, and certified for cold climates.

      Ranks #167 of 331 2 ton central heat pumps for cooling efficiency, and costs about $687 a year to run in a mixed climate like Atlanta.

      SEER2
      18.0 Cooling efficiency over a season
      Average · beats 66%
      HSPF2
      9.0 Heating efficiency over a season
      Average · beats 54%
      EER2
      10.5 Cooling efficiency on a 95°F day
      Below average · beats 17%
      Heat at 5°F
      17,300 BTU/h70% of its 47°F output
      Average · beats 47%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 17,300 BTU/h at 5°F.
      • You want steady temperatures and quiet running - the compressor varies its speed.
      • You want a choice of indoor units - 104 certified pairings.

      Think twice if…

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

      Calculate my running cost

      Details

      Specifications2 ton, R-454B
      General
      BrandCarrier
      Also sold asBryant, Tempstar
      Outdoor unit model27VNA024A*030
      SeriesInfinity 20 VS Heat Pump
      TypeCentral heat pump
      Nominal size2 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceJune 12, 2023
      Last certifiedMay 1, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better18.0 (range 15.5-18.0)
      EER2Efficiency at 95°F outdoors9.0-10.5
      Cooling capacity22,400-24,200 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.5-9.0
      Capacity at 47°F23,200-24,600 BTU/h
      Capacity at 17°F19,600-20,800 BTU/h
      Capacity at 5°F16,300-17,300 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.82-2.02
      ENERGY STAR cold climateYes
      Heating output as it gets colder70% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with CAA**3721AM*+UI at the standard test temperatures, in BTU/h:

      Certified matchups104 indoor units

      The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 104 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      CAA**3721AM*+UI · cold climate58CU*A040C17**1218.010.59.016,300215683687
      CAA**2517AM*+UI · cold climate58CU*A040C17**1217.510.59.016,400215683597
      CAA**2517AM*+UI · cold climate58TN*B070C17**1617.510.59.016,400215683603
      CAA**3721AM*+UI · cold climate58TN*B070C21**2017.510.59.016,300215683695
      CAA**3721AM*+UI · cold climate58TN*B090C17**1617.510.59.016,300215683697
      CAA**3721AM*+UI · cold climate58CU*A060C17**1617.510.59.016,300215683689
      CAA**3721AM*+UI · cold climate59TN6C100C21**2217.510.59.016,300215683717
      CAA**3721AM*+UI · cold climate59MN7C080C17**1417.510.59.016,400215683709
      CAA**3721AM*+UI · cold climate58TN*B110C21**2017.510.59.016,300215683701
      CAA**3721AM*+UI · cold climate59TN6C080C17**1417.510.59.016,300215683715
      CAA**2517AM*+UI · cold climate58TN*B070C14**1217.510.59.016,400215683601
      CAA**3717AM*+UI · cold climate58TN*B070C14**1217.510.59.016,500215683671
      CAA**2517AM*+UI · cold climate58TN*B090C17**1617.510.59.016,400215683605
      CAA**2517AM*+UI · cold climate59TN6C080C17**1417.510.59.016,400215683615
      CAA**3721AM*+UI · cold climate58CU*B060C17**1617.510.59.016,300215678393
      CAA**3721AM*+UI · cold climate58TN*B090C21**2017.510.59.016,300215683699
      CAA**3721AM*+UI · cold climate59TN7A100C21**2217.510.59.016,300215678423
      CAA**3721AM*+UI · cold climate59MN7C100C21**2217.510.59.016,300215683711
      CAA**3721AM*+UI · cold climate59TN6C060C17**1417.510.59.016,400215683713
      CAA**3721AM*+UI · cold climate58TN*B070C17**1617.510.59.016,400215683693
      CAA**3017AM*+UI · cold climate58TN*B070C17**1617.010.09.016,700215683629
      CAA**3017AM*+UI · cold climate58TN*B090C17**1617.010.09.016,700215683631
      CAA**2517AM*+UI · cold climate59TN7A060C17**1617.010.09.016,500215678243
      CAA**3717AM*+UI · cold climate59TN6C060C17**1417.010.09.016,600215683683
      CAA**3717AM*+UI · cold climate58CU*A060C17**1617.010.09.016,500215683667
      CAA**2414AM*+UI · cold climate58TN*B070C14**1217.010.09.016,900215683573
      CAA**3717AM*+UI · cold climate58TN*B070C17**1617.010.59.016,500215683673
      CAA**3717AM*+UI · cold climate58TN*B090C17**1617.010.59.016,500215683675
      CAA**3617AM*+UI · cold climate58TN*B090C17**1617.010.59.016,600215683653
      CAA**2517AM*+UI · cold climate59TN6C060C17**1417.010.59.016,500215683613
      CAA**3721AM*+UI · cold climate58TN*B045C17**1217.010.59.016,500215683691
      CAA**3717AM*+UI · cold climate58CU*B060C17**1617.010.09.016,400215678353
      CAA**2517AM*+UI · cold climate59MN7C080C17**1417.010.59.016,400215683609
      CAA**3017AM*+UI · cold climate58CU*A040C17**1217.010.09.016,600215683621
      CAA**2417AM*+UI · cold climate58TN*B070C14**1217.010.09.016,800215683583
      CAA**3721AM*+UI · cold climate59CU5B100C21**2217.010.59.016,300215683703
      CAA**3017AM*+UI · cold climate58TN*B070C14**1217.010.09.016,700215683627
      CAA**2417AM*+UI · cold climate58TN*B090C17**1617.010.09.016,800215683587
      CAA**2517AM*+UI · cold climate58CU*B040C17**1217.010.59.016,300215678223
      CAA**2517AM*+UI · cold climate58CU*B060C17**1617.010.59.016,300215678233
      CAA**2517AM*+UI · cold climate58TN*B045C17**1217.010.09.016,500215683599
      CAA**3617AM*+UI · cold climate59TN6C080C17**1417.010.09.016,600215683663
      CAA**3717AM*+UI · cold climate58CU*A040C17**1217.010.59.016,500215683665
      CAA**3617AM*+UI · cold climate59TN6C060C17**1417.010.09.016,700215683661
      CAA**3617AM*+UI · cold climate58CU*A040C17**1217.010.09.016,600215683643
      CAA**3617AM*+UI · cold climate58CU*A060C17**1617.010.09.016,600215683645
      CAA**3717AM*+UI · cold climate58TN*B045C17**1217.010.09.016,600215683669
      CAA**2517AM*+UI · cold climate59TN7A080C17**1617.010.59.016,500215678253
      CAA**2517AM*+UI · cold climate59MN7C060C17**1417.010.59.016,500215683607
      CAA**3717AM*+UI · cold climate59TN6C080C17**1417.010.59.016,500215683685
      CAA**3617AM*+UI · cold climate59TN7A080C17**1617.010.09.016,700215678333
      CAA**3617AM*+UI · cold climate59MN7C060C17**1417.010.09.016,700215683655
      CAA**3617AM*+UI · cold climate59MN7C080C17**1417.010.09.016,700215683657
      CAA**3721AM*+UI · cold climate59TN7A060C17**1617.010.59.016,400215678403
      CAA**3717AM*+UI · cold climate58CU*B040C17**1217.010.09.016,400215678343
      CAA**3717AM*+UI · cold climate59TN7A080C17**1617.010.09.016,500215678373
      CAA**3717AM*+UI · cold climate59MN7C080C17**1417.010.59.016,500215683679
      CAA**3017AM*+UI · cold climate59TN6C080C17**1417.010.09.016,700215683641
      CAA**3017AM*+UI · cold climate58CU*A060C17**1617.010.09.016,700215683623
      CAA**3617AM*+UI · cold climate58TN*B070C14**1217.010.09.016,600215683649
      Same unit, other model numbers2

      These model numbers have exactly the same certified ratings and matchups as the Carrier 27VNA024A*030: 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$606-$1,649

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

      Questions6
      What is the SEER2 rating of the Carrier 27VNA024A*030?
      The Carrier 27VNA024A*030 is rated at up to 18.0 SEER2 and 10.5 EER2 for cooling and up to 9.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 104 certified matchups SEER2 ranges from 15.5-18.0.
      Is the Carrier 27VNA024A*030 good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 17,300 BTU/h at 5°F with a COP of 2.02, so it is still 2.0 times as efficient as electric resistance heat at that temperature.
      How much does the Carrier 27VNA024A*030 cost to run per year?
      At its rated efficiency it costs about $606-$1,649 a year in electricity in large U.S. cities, depending on climate and local rates - for example $751 in Phoenix and $1,381 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      Is the Carrier 27VNA024A*030 the same as the Bryant 290VAN024**AA?
      Yes, as far as the certified ratings go. ENERGY STAR lists 3 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 Carrier 27VNA024A*030?
      ENERGY STAR lists 104 certified combinations for this outdoor unit. The highest-rated ones use CAA**3721AM*+UI, CAA**2517AM*+UI, CAA**3717AM*+UI.
      What refrigerant does the Carrier 27VNA024A*030 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 $747/yrYou save $455/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 Carrier 27VNA024A*030
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $747
      Current system, per year
      $1,203
      You save per year
      $455
      Payback
      18.7 years
      Net after 10 years
      -$3,946

      Cooling $454Heating $294Electricity used: 4,671 kWhSaved vs. a minimum-efficiency heat pump: $176

      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.

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      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of May 1, 2026. How we use the data.