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      4-ton central heat pump · LX SERIES

      York YH648E2S11

      Below average cooling and heating efficiency for a 4-ton central heat pump, but not rated for cold climates.

      Ranks #252 of 319 4 ton central heat pumps for cooling efficiency, and costs about $1,558 a year to run in a mixed climate like Atlanta.

      SEER2
      16.0 Cooling efficiency over a season
      Below average · beats 26%
      HSPF2
      8.1 Heating efficiency over a season
      Below average · beats 20%
      EER2
      12.0 Cooling efficiency on a 95°F day
      Average · beats 64%
      Heat at 5°F
      27,800 BTU/h58% of its 47°F output
      Excellent · beats 95%

      A good fit if…

      • You want a choice of indoor units - 554 certified pairings.

      Think twice if…

      • You often see nights below 0°F - it is not cold-climate certified.
      • Cooling cost matters most - its SEER2 is below average for central heat pumps.
      • You mainly need heat - its HSPF2 is below average for central heat pumps.

      Calculate my running cost

      Details

      Specifications4 ton, R-454B
      General
      BrandYork
      Outdoor unit modelYH648E2S11
      SeriesLX SERIES
      TypeCentral heat pump
      Nominal size4 ton
      CompressorVariable-speed units run longer at low powerTwo-stage
      RefrigerantR-454B
      Connected (smart) capableNo
      On the market sinceApril 1, 2025
      Last certifiedSeptember 22, 2026
      Cooling
      SEER2Seasonal efficiency, higher is better16.0 (range 15.2-16.0)
      EER2Efficiency at 95°F outdoors11.7-12.0
      Cooling capacity45,000-49,000 BTU/h
      Heating
      HSPF2Seasonal efficiency, higher is better7.8-8.1
      Capacity at 47°F46,000-50,000 BTU/h
      Capacity at 17°F31,800-34,000 BTU/h
      Capacity at 5°F25,000-27,800 BTU/h
      COP at 5°F2.0 = twice as efficient as a space heater2.00-2.40
      ENERGY STAR cold climateNo
      Heating output as it gets colder58% kept at 5°F

      Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with CTU60D5XHS1+JMC20D2SN1+TXV at the standard test temperatures, in BTU/h:

      Certified matchups554 indoor units

      The same outdoor unit scores differently with each indoor unit and furnace. The 60 highest-rated of 554 are shown. Ask your installer for the AHRI reference number of the exact system you are quoted.

      Indoor unitFurnaceSEER2EER2HSPF2Heat @5°FAHRI ref.
      CTU60D5XHS1+JMC20D2SN1+TXV-16.012.08.127,000217019148
      CTF60D5CHS1+JME18D2SN1-16.012.08.126,800217019150
      CTU60D5XHS1+JME18D2SN1+TXV-16.012.08.126,800217019152
      CTF60C5CHS1Y81E100C20SMPS116.012.08.127,400217019154
      CTF60C5CHS1Y81E100C20LMPS116.012.08.127,400217019156
      CTF60C5CHS1Y92E100C16SMPS116.012.08.127,600217019158
      CTF60C5CHS1Y82E120C20LMPS116.012.08.127,400217019160
      JHC60C5CH2SS1-16.012.08.127,000217019162
      CTM60C5CHS1+JMET12CS2N1-16.012.08.126,400217019164
      CTM60C5CHS1+JMVT17CC2N1-16.012.08.126,600217019166
      CTM60C5CHS1+JME12C2SN1-16.012.08.126,400217019168
      CTM60C5CHS1Y92E100C16SMPS116.012.08.127,200217019170
      CTM60D5CHS1Y92E120D20SMPS116.012.08.127,400217019172
      CTF60C5CGS1Y92E100C16SMPS116.011.78.127,400217019174
      CTU60C5XGS1+TXVY92E100C16SMPS116.011.78.127,400217019176
      CTU60D5XGS1+JMC20D2SN1+TXV-16.012.08.127,200217019184
      CTF60C5CGS1+JMVT17CC2N1-16.012.08.127,200217019178
      CTU60C5XGS1+JMVT17CC2N1+TXV-16.012.08.127,200217019180
      CTF60D5CGS1+JMC20D2SN1-16.012.08.127,200217019182
      CTF60C5CGS1Y81E100C20SMPS116.012.08.127,200217019186
      CTF60C5CGS1Y81E100C20LMPS116.012.08.127,200217019188
      CTU60C5XGS1+TXVY81E100C20SMPS116.012.08.127,200217019190
      CTU60C5XGS1+TXVY81E100C20LMPS116.012.08.127,200217019192
      CTF60C5CGS1Y92E100C20SMPS116.012.08.127,400217019194
      CTU60C5XGS1+TXVY92E100C20SMPS116.012.08.127,400217019196
      CTF60C5CGS1Y82E120C20LMPS116.012.08.127,600217019198
      CTU60C5XGS1+TXVY82E120C20LMPS116.012.08.127,600217019200
      CTF60C5CHS1Y81E120C20SMPS116.012.08.127,400217019202
      CTF60C5CHS1Y81E120C20LMPS116.012.08.127,400217019204
      CTF60C5CHS1Y82E100C20LMPS116.012.08.127,400217019206
      CTF60D5CHS1Y81E130D20SMPS116.012.08.127,000217019208
      CTF60D5CHS1Y81E130D20LMPS116.012.08.127,000217019210
      CTF60D5CHS1Y91E120D20SMPS116.012.08.127,200217019278
      CTU60D5XHS1+TXVY91E120D20SMPS116.012.08.127,200217019280
      JHE60D5CH2SS1-16.012.08.127,000217019284
      CTM60C5CHS1Y81E120C20SMPS116.012.08.127,400217019286
      CTM60C5CHS1Y81E120C20LMPS116.012.08.127,400217019288
      CTM60D5CHS1Y91E120D20SMPS116.012.08.127,600217019290
      CTM60C5CHS1Y91E100C20SMPS116.012.08.127,800217019294
      CTM60D5CHS1+JME18D2SN1-16.012.08.126,800217019292
      CTF60C5CGS1Y81E120C20SMPS116.012.08.127,200217019296
      CTF60C5CGS1Y81E120C20LMPS116.012.08.127,200217019298
      CTU60C5XGS1+TXVY81E120C20SMPS116.012.08.127,200217019300
      CTU60C5XGS1+TXVY81E120C20LMPS116.012.08.127,200217019302
      CTF60C5CGS1+JMET16CS2N1-16.012.08.127,400217019304
      CTU60C5XGS1+JMET16CS2N1+TXV-16.012.08.127,400217019306
      CTF60C5CGS1+JMET12CS2N1-16.012.08.126,800217019308
      CTU60C5XGS1+JMET12CS2N1+TXV-16.012.08.126,800217019311
      CTF60D5CGS1+JME18D2SN1-16.012.08.127,000217019313
      CTU60D5XGS1+JME18D2SN1+TXV-16.012.08.127,000217019315
      CTF60C5CGS1Y82E100C20LMPS116.012.08.127,600217019321
      CTU60C5XGS1+TXVY82E100C20LMPS116.012.08.127,600217019323
      CTF60C5CHS1+JMET12CS2N1-16.012.08.126,400217019325
      CTF60C5CHS1+JME12C2SN1-16.012.08.126,400217019327
      CTF60C5CHS1+JME16C2SN1-16.012.08.126,800217019329
      CTF60C5CHS1Y91E080C20SMPS116.012.08.127,600217019331
      CTF60C5CHS1Y81E080C16SMPS116.012.08.126,800217019335
      CTF60C5CHS1Y81E080C16LMPS116.012.08.126,800217019337
      CTM60C5CHS1Y82E100C16LMPS116.012.08.127,200217019339
      CTF60D5CGS1Y92E120D20SMPS116.012.08.127,600217019114
      Yearly running cost in 10 large cities$1,381-$3,733

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

      Questions5
      What is the SEER2 rating of the York YH648E2S11?
      The York YH648E2S11 is rated at up to 16.0 SEER2 and 12.0 EER2 for cooling and up to 8.1 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 554 certified matchups SEER2 ranges from 15.2-16.0.
      Is the York YH648E2S11 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 4-ton model.
      How much does the York YH648E2S11 cost to run per year?
      At its rated efficiency it costs about $1,381-$3,733 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,708 in Phoenix and $3,123 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 York YH648E2S11?
      ENERGY STAR lists 554 certified combinations for this outdoor unit. The highest-rated ones use CTU60D5XHS1+JMC20D2SN1+TXV, CTF60D5CHS1+JME18D2SN1, CTU60D5XHS1+JME18D2SN1+TXV.
      What refrigerant does the York YH648E2S11 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 $1,698/yrYou save $742/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 York YH648E2S11
      3. What it replaces
      4. Price replace the example with your quote
      Heat pump, per year
      $1,698
      Current system, per year
      $2,440
      You save per year
      $742
      Payback
      23.6 years
      Net after 10 years
      -$10,079

      Cooling $1,034Heating $664Electricity used: 10,611 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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      See all 319 4 ton central heat pumps, ranked

      Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of September 22, 2026. How we use the data.