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      3.5-ton central heat pump · MVB Series

      MDV MOX630-48HFN10-M3X

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

      Ranks #26 of 138 3.5 ton central heat pumps for cooling efficiency, and costs about $1,324 a year to run in a mixed climate like Atlanta.

      SEER2
      17.5 Cooling efficiency over a season
      Average · beats 58%
      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
      48,000 BTU/h100% of its 47°F output
      Below average · beats 39%

      A good fit if…

      • Your winters get properly cold - it is ENERGY STAR cold-climate certified, with 48,000 BTU/h at 5°F.
      • 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 - 41 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
      BrandMDV
      Outdoor unit modelMOX630-48HFN10-M3X
      SeriesMVB Series
      TypeCentral heat pump
      Nominal size3.5 ton
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceOctober 12, 2022
      Last certifiedSeptember 30, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better17.5 (range 15.2-17.5)
      EER2Efficiency at 95°F outdoors9.8-12.0
      Cooling capacity44,000-48,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better8.1-9.5
      Capacity at 47°F45,000-50,000 BTU/h
      Capacity at 17°F30,000-39,500 BTU/h
      Capacity at 5°F41,000-48,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater1.75-2.00
      ENERGY STAR cold climateYes
      Heating output as it gets colder100% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with MVBDM-48HWFN10-WC3 at the standard test temperatures, in BTU/h:

      Certified matchups41 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 unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      MVBDM-48HWFN10-WC3 · cold climate-17.512.09.548,000214861548
      MVBDM-48HWFN10-WC3-D · cold climate-17.512.09.548,000214861614
      MVBDM-60HWFN10-WC3 · cold climate-17.512.09.548,000215318732
      MVBDM-60HWFN10-WC3-D · cold climate-17.512.09.548,000215359331
      MVBDM-48HWFN10-WC3-MAS · cold climate-17.512.09.548,000216030942
      MVBM-60C28T6N10 · cold climateS9V2C100D5VS***16.610.08.642,000217753426
      MVBM-60C28T6N10 · cold climateS9V2C100U5VS***16.610.08.642,000217753427
      MVBM-60C28T6N10 · cold climateS9V2B080U4VS***16.610.08.541,000217550352
      MVBC-48HWFN10-MD3E · cold climate-16.510.59.546,000214861547
      MVBC-48HWFN10-MD3E-D · cold climate-16.510.59.546,000214861594
      MVBC-60HWFN10-MD3E-D · cold climate-16.510.59.546,000215359327
      MVBC-48HWFPN10-MD3E · cold climate-16.510.59.546,000215865886
      MVBM-60C28T6N10 · cold climateS9V2C080U5VS***16.510.08.542,000217753425
      MVBM-60C28T6N10 · cold climateML296UH110XV60C*16.510.58.241,000217754208
      MVBM-60C28T6N10 · cold climateS9X1C080U5PSB**16.410.28.341,000217753428
      MVBM-60C28T6N10 · cold climateS9X2C080U5PSB**16.410.28.341,000217753505
      MVBM-60C28T6N10 · cold climateML193UH110XE48B*16.310.68.141,000217754201
      MVBM-60C28T6N10 · cold climateML193UH110XE48C*16.310.68.141,000217896573
      MVBM-60D28T6N10 · cold climateS9V2D120D5VS***16.19.88.541,000217753431
      MVBM-60D28T6N10 · cold climateS9V2D120U5VS***16.19.88.541,000217753432
      MVBM-60C28T6N10 · cold climateRL18100C16MPS116.110.58.242,000217753618
      MVBM-60C28T6N10 · cold climateRL18100C20MPS116.110.58.242,000217753619
      MVBM-60C28T6N10 · cold climateML193UH090XE48B*16.110.28.242,000217754200
      MVBM-60C28T6N10 · cold climateML193UH090XE48C*16.110.28.242,000217896570
      MVBM-60C28T6N10 · cold climateML296UH090XV48B*16.010.48.141,000217754207
      MVBM-60C28T6N10 · cold climateML296UH090XV48C*16.010.48.141,000217896580
      MVBM-60C28T6N10 · cold climateML296DF090XV60C*15.910.38.141,000217754206
      MVBM-60C28T6N10 · cold climateRG19100C20MPS115.810.28.342,000217753568
      MVBM-60C28T6N10 · cold climateMGV96U100C5C15.510.48.341,000217607710
      MVBM-60C28T6N10 · cold climateML196UH090XE60C*15.510.38.342,000217754204
      MVBM-60C28T6N10 · cold climateMGV80M100C5NB15.410.38.542,000218731288
      MVBM-60C28T6N10 · cold climateML193UH110XE60C*15.410.58.442,000217754202
      MVBM-60C28T6N10 · cold climateRG19100C16MPS115.410.38.242,000217753567
      MVBM-60D28T6N10 · cold climateRL18130D20MPS115.49.98.242,000217753620
      MVBM-60C28T6N10 · cold climateML196DF110XE60C*15.310.68.442,000217754203
      MVBM-60C28T6N10 · cold climateML196UH110XE60C*15.310.58.341,000217754205
      MVBM-60C28T6N10 · cold climate-15.210.08.842,000216626168
      MVBM-60C28T6N10-MAS · cold climate-15.210.08.842,000216684113
      MVBM-60C28T6N10 · cold climateMGV96U080C4C15.210.58.542,000217607709
      MVBM-60C28T6N10 · cold climateC120-M-V15.29.88.541,000217615701
      MVBM-60C28T6N10 · cold climateMGV80M080C4NB15.210.38.241,000218731287
      Yearly running cost in 10 large cities$1,207-$3,145

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

      Questions5
      What is the SEER2 rating of the MDV MOX630-48HFN10-M3X?
      The MDV MOX630-48HFN10-M3X is rated at up to 17.5 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 41 certified matchups SEER2 ranges from 15.2-17.5.
      Is the MDV MOX630-48HFN10-M3X good for cold climates?
      Yes. At least one certified matchup meets the ENERGY STAR cold-climate criteria, delivering up to 48,000 BTU/h at 5°F with a COP of 2.00, so it is still 2.0 times as efficient as electric resistance heat at that temperature.
      How much does the MDV MOX630-48HFN10-M3X cost to run per year?
      At its rated efficiency it costs about $1,207-$3,145 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,477 in Phoenix and $2,619 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 MDV MOX630-48HFN10-M3X?
      ENERGY STAR lists 41 certified combinations for this outdoor unit. The highest-rated ones use MVBDM-48HWFN10-WC3, MVBDM-48HWFN10-WC3-D, MVBDM-60HWFN10-WC3.
      What refrigerant does the MDV MOX630-48HFN10-M3X 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 $1,459/yrYou save $894/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 MDV MOX630-48HFN10-M3X
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,459
      Current system, per year
      $2,353
      You save per year
      $894
      Payback
      19.0 years
      Net after 10 years
      -$8,062

      Cooling $905Heating $554Electricity used: 9,120 kWhSaved vs. a minimum-efficiency heat pump: $350

      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 September 30, 2026. How we use the data.