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      48,000 BTU mini-split heat pump · MCY-MAP0487HS-UL*

      TOSHIBA CARRIER MCY-MAP0487HS-UL

      Average cooling and heating efficiency for a 48,000 BTU mini-split heat pump, but not rated for cold climates.

      Ranks #39 of 146 48,000 BTU mini-splits for cooling efficiency, and costs about $1,189 a year to run in a mixed climate like Atlanta.

      SEER2
      22.6 Cooling efficiency over a season
      Average · beats 57%
      HSPF2
      10.3 Heating efficiency over a season
      Average · beats 55%
      EER2
      13.2 Cooling efficiency on a 95°F day
      Average · beats 69%
      Heat at 5°F
      39,000 BTU/h79% of its 47°F output
      Excellent · beats 99%

      A good fit if…

      • You want steady temperatures and quiet running - the compressor varies its speed.

      Think twice if…

      • You often see nights below 0°F - it is not cold-climate certified.
      • You want the newest refrigerant - it uses R-410A, which is being phased down.

      Calculate my running cost

      Details

      Specifications48,000 BTU, R-410A
      General
      BrandTOSHIBA CARRIER
      Outdoor unit modelMCY-MAP0487HS-UL
      SeriesMCY-MAP0487HS-UL*
      TypeMini-split heat pump
      Nominal size48,000 BTU
      CompressorVariable-speed units run longer at low powerContinuously variable
      RefrigerantR-410A
      Connected (smart) capableNo
      On the market sinceFebruary 7, 2017
      Last certifiedFebruary 14, 2025
      Cooling
      SEER2Seasonal efficiency, higher is better22.6 (range 17.9-22.6)
      EER2Efficiency at 95°F outdoors11.7-13.2
      Cooling capacity48,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better10.0-10.3
      Capacity at 47°F48,000 BTU/h
      Capacity at 17°F41,500-43,000 BTU/h
      Capacity at 5°F38,000-39,000 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.50-2.60
      ENERGY STAR cold climateNo
      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 matchups3 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.
      -22.613.210.338,000213350250
      -20.312.510.238,500213350257
      -17.911.710.039,000213350254
      Yearly running cost in 10 large cities$1,001-$2,891

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

      Questions4
      What is the SEER2 rating of the TOSHIBA CARRIER MCY-MAP0487HS-UL?
      The TOSHIBA CARRIER MCY-MAP0487HS-UL is rated at up to 22.6 SEER2 and 13.2 EER2 for cooling and up to 10.3 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 3 certified matchups SEER2 ranges from 17.9-22.6.
      Is the TOSHIBA CARRIER MCY-MAP0487HS-UL 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 48,000 BTU model.
      How much does the TOSHIBA CARRIER MCY-MAP0487HS-UL cost to run per year?
      At its rated efficiency it costs about $1,001-$2,891 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,264 in Phoenix and $2,438 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
      What refrigerant does the TOSHIBA CARRIER MCY-MAP0487HS-UL 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 $1,270/yrYou save $1,205/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 TOSHIBA CARRIER MCY-MAP0487HS-UL
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,270
      Current system, per year
      $2,475
      You save per year
      $1,205
      Payback
      14.9 years
      Net after 10 years
      -$5,946

      Cooling $748Heating $522Electricity used: 7,935 kWhSaved vs. a minimum-efficiency heat pump: $629

      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 February 14, 2025. How we use the data.