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Check a heat pump’s certified ratings

Type the outdoor unit’s model number from its nameplate, or the AHRI reference number from your quote. You will see its ratings, how it compares with others of its size, and the rebate standards it meets.

Covers heat pumps sold new today (R-454B and R-32 refrigerant). See older R-410A models · Updated

Partial model numbers work. AHRI numbers find the pairing listed for each model.

Ducted, 3.5–4.5 tons: every model, highest efficiency on a 5°f day first

One size class at a time, so the numbers compare directly.

Showing Ducted, 3.5–4.5 tons (39,000–56,999 Btu/h cooling). What size is my system?

  1. 601ACIQ-55Z-HH-M6C1HVAC4.5 tons · 53,000 Btu/h · DuctedGood2.10
  2. 602ACIQ-60-HP32with ducted air handler ACIQ-60-AH321HVAC4.5 tons · 53,000 Btu/h · DuctedGood2.10
  3. 603ACIQ-60ZPL-HP230Cwith ducted air handler ACIQ-60CD-HH-MC1HVAC4.5 tons · 55,000 Btu/h · DuctedGood2.10
  4. 604ES-48Z-M6C1HVAC4 tons · 45,000 Btu/h · DuctedGood2.10
  5. 605AC-48-HP-E-32with ducted air handler AC-48-AH-E-32ACIQ4 tons · 48,000 Btu/h · DuctedGood2.10
  6. 606ACIQ-55Z-HH-M6CACIQ4.5 tons · 53,000 Btu/h · DuctedGood2.10
  7. 607ACIQ-60-HP32with ducted air handler ACIQ-60-AH32ACIQ4.5 tons · 53,000 Btu/h · DuctedGood2.10
  8. 608ACIQ-60ZPL-HP230Cwith ducted air handler ACIQ-60CD-HH-MCACIQ4.5 tons · 55,000 Btu/h · DuctedGood2.10
  9. 609ES-48Z-M6CACIQ4 tons · 45,000 Btu/h · DuctedGood2.10
  10. 610H5H3V60*K*AAA*with indoor coil EA*5X61M21A*+WALLCON and furnace *80CTL0701716BACIQ4.5 tons · 56,000 Btu/h · DuctedGood2.10
  11. 611A6MO21-48N2-M1AI AIR CONDITIONING4 tons · 45,000 Btu/h · DuctlessGreat2.10
  12. 612A6MO23-55N2-M1HAI AIR CONDITIONING4.5 tons · 53,000 Btu/h · DuctedGood2.10
  13. 613ASO25-60N2-M2Hwith ducted air handler AH-60N2-M1AI AIR CONDITIONING4.5 tons · 55,000 Btu/h · DuctedGood2.10
  14. 614AVPI7H4T48AIR-CON4 tons · 48,000 Btu/h · DuctedGood2.10
  15. 615UE-H55M1PAIR C4.5 tons · 53,000 Btu/h · DuctedGood2.10
  16. 616AFMKH42-H2AIR MAX3.5 tons · 42,000 Btu/h · DuctlessGreat2.10
  17. 617AFMKH48-H2AIR MAX4 tons · 48,000 Btu/h · DuctlessGreat2.10
  18. 618ATMO42AXR32AIR TECH3.5 tons · 42,000 Btu/h · DuctedGood2.10
  19. 619AC-48-HP-E-32with ducted air handler AC-48-AH-E-32AireForce4 tons · 48,000 Btu/h · DuctedGood2.10
  20. 620DXH42FMK3IHAireForce3.5 tons · 42,000 Btu/h · DuctlessGreat2.10
  21. 621UXH48-60MSK3IHwith ducted air handler UMD60MSK3IHAireForce4.5 tons · 53,000 Btu/h · DuctedGood2.10
  22. 622DXH42FMK3IHAIRTEMP3.5 tons · 42,000 Btu/h · DuctlessGreat2.10
  23. 623UXH48-60MSK3IHwith ducted air handler UMD60MSK3IHAIRTEMP4.5 tons · 53,000 Btu/h · DuctedGood2.10
  24. 624AM6OG-48HFN1ApooDr4 tons · 45,000 Btu/h · DuctlessGreat2.10
  25. 625AP5M42HP230VMOAPOWER3.5 tons · 42,000 Btu/h · DuctlessGreat2.10

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

What size is my system?

Tons and Btu

A heat pump’s size is its rated cooling output, in Btu per hour. Installers talk in tons: one ton is 12,000 Btu per hour, so a 3-ton unit is about 36,000.

Where to find yours: the nameplate sticker on the outdoor unit lists the model number. Many model numbers include the size in thousands of Btu, such as 24 (2 tons), 36 (3 tons) or 48 (4 tons). Your quote or AHRI certificate also lists it. Look up a model number

These are certified test ratings, not a recommendation for your home. The right size comes from a load calculation by a contractor.

Size classes used here

  • Up to 1.5 tonsunder 21,000 Btu/h
  • 2 tons21,000–26,999 Btu/h
  • 2.5–3 tons27,000–38,999 Btu/h
  • 3.5–4.5 tons39,000–56,999 Btu/h
  • 5 tons and up57,000 Btu/h and up

The advanced view lists every model with filters for brand, standard, size and type, sortable by any rating.

Open the advanced view