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      5-ton packaged heat pump · Extreme Heat Inverter Rooftop

      1HVAC ACIQ-PHH1760000K000V

      Very good cooling efficiency and average heating efficiency for a 5-ton packaged heat pump, and certified for cold climates.

      Ranks #9 of 29 5 ton packaged heat pumps for cooling efficiency, and costs about $1,784 a year to run in a mixed climate like Atlanta.

      SEER2
      17.0 Cooling efficiency over a season
      Very good · beats 76%
      HSPF2
      8.3 Heating efficiency over a season
      Average · beats 67%
      EER2
      10.6 Cooling efficiency on a 95°F day
      Below average · beats 10%
      Heat at 5°F
      45,000 BTU/h79% of its 47°F output
      Below average · beats 33%

      A good fit if…

      • You want low cooling bills - its SEER2 beats 76% of packaged heat pumps.
      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 45,000 BTU/h at 5°F.
      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • You want the newest refrigerant - it uses R-410A, which is being phased down.

      Calculate my running cost

      Details

      Specifications5 ton, R-410A
      General
      Brand1HVAC
      Also sold asACIQ, DIYCOOL, Stealth Comfort
      Outdoor unit modelACIQ-PHH1760000K000V
      SeriesExtreme Heat Inverter Rooftop
      TypePackaged heat pump
      Nominal size5 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-410A
      Connected (smart) capableNo
      On the market sinceAugust 8, 2024
      Last certifiedJune 29, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better17.0 (range 17.0)
      EER2Efficiency at 95°F outdoors10.6
      Cooling capacity56,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.3
      Capacity at 47°F57,000 BTU/h
      Capacity at 17°F37,000 BTU/h
      Capacity at 5°F45,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.80
      ENERGY STAR cold climateYes
      Heating output as it gets colder79% kept at 5°F

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

      Certified matchups4 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.
      - · cold climate17.010.68.345,000215387221
      - · cold climate17.010.68.345,000215387225
      - · cold climate17.010.68.345,000215387229
      - · cold climate17.010.68.345,000215387233
      Yearly running cost in 10 large cities$1,550-$4,300

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

      Questions4
      What is the SEER2 rating of the 1HVAC ACIQ-PHH1760000K000V?
      The 1HVAC ACIQ-PHH1760000K000V is rated at up to 17.0 SEER2 and 10.6 EER2 for cooling and up to 8.3 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with.
      Is the 1HVAC ACIQ-PHH1760000K000V good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 45,000 BTU/h at 5°F with a COP of 1.80, so it is still 1.8 times as efficient as electric resistance heat at that temperature.
      How much does the 1HVAC ACIQ-PHH1760000K000V cost to run per year?
      At its rated efficiency it costs about $1,550-$4,300 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,933 in Phoenix and $3,609 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      What refrigerant does the 1HVAC ACIQ-PHH1760000K000V use?
      It uses R-410A. R-410A is being phased down under the EPA AIM Act, and new systems are moving to R-454B and R-32.

      Running cost and savings

      Pre-filled with this model. Pick your city and what you heat with today; everything else is optional.

      Heat pump $1,929/yrYou save $975/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 1HVAC ACIQ-PHH1760000K000V
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,929
      Current system, per year
      $2,904
      You save per year
      $975
      Payback
      21.5 years
      Net after 10 years
      -$11,248

      Cooling $1,160Heating $769Electricity used: 12,054 kWhSaved vs. a minimum-efficiency heat pump: $301

      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 5 ton models

      See all 29 5 ton packaged heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of June 29, 2026. How we use the data.