What is the SEER2 rating of the Carrier 27SCA536A**30?

The Carrier 27SCA536A**30 is rated at up to 16.0 SEER2 and 13.0 EER2 for cooling and up to 8.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 30 certified matchups SEER2 ranges from 15.2-16.0.

Is the Carrier 27SCA536A**30 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 3-ton model.

How much does the Carrier 27SCA536A**30 cost to run per year?

At its rated efficiency it costs about $1,028-$2,761 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,269 in Phoenix and $2,308 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.

Is the Carrier 27SCA536A**30 the same as the Carrier 27SPA636A**30?

Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.

Which indoor units work with the Carrier 27SCA536A**30?

ENERGY STAR lists 30 certified combinations for this outdoor unit. The highest-rated ones use FEVA0048**+NAVA54801CK, FT5AN(B,X)C48L, FJ5AN*C48L.

3-ton central heat pump · COMFORT 15 SEER2 HP

Carrier 27SCA536A**30

Below average cooling and heating efficiency for a 3-ton central heat pump, but not rated for cold climates.

Ranks #243 of 302 3 ton central heat pumps for cooling efficiency, and costs about $1,154 a year to run in a mixed climate like Atlanta.

SEER2: 16.0 Cooling efficiency over a season
Below average · beats 26%
HSPF2: 8.0 Heating efficiency over a season
Below average · beats 12%
EER2: 13.0 Cooling efficiency on a 95°F day
Very good · beats 89%
Heat at 5°F: 18,100 BTU/h48% of its 47°F output
Very good · beats 80%

A good fit if…

You want a choice of indoor units - 30 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.
Comfort and noise matter - a single-stage compressor runs only full-on or off.

Calculate my running cost

Details

Specifications3 ton, R-454B

General
Brand	Carrier
Outdoor unit model	27SCA536A**30
Series	COMFORT 15 SEER2 HP
Type	Central heat pump
Nominal size	3 ton
CompressorVariable-speed units run longer at low power	Single stage
Refrigerant	R-454B
Connected (smart) capable	No
On the market since	January 1, 2024
Last certified	June 16, 2026
Cooling
SEER2Seasonal efficiency, higher is better	16.0 (range 15.2-16.0)
EER2Efficiency at 95°F outdoors	11.7-13.0
Cooling capacity	33,800-36,800 BTU/h
Heating
HSPF2Seasonal efficiency, higher is better	7.8-8.0
Capacity at 47°F	33,200-36,400 BTU/h
Capacity at 17°F	21,000-22,800 BTU/h
Capacity at 5°F	16,100-18,100 BTU/h
COP at 5°F2.0 = twice as efficient as a space heater	2.00-2.22
ENERGY STAR cold climate	No

Heating output as it gets colder48% kept at 5°F

Every heat pump delivers less heat as the outdoor temperature drops. Certified output of its matchup with FEVA0048**+NAVA54801CK at the standard test temperatures, in BTU/h:

Certified matchups30 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 unit	Furnace	SEER2	EER2	HSPF2	Heat @5°F	AHRI ref.
FEVA0048**+NAVA54801CK	-	16.0	13.0	8.0	17,400	217051631
FT5AN(B,X)C48L	-	15.5	12.5	7.8	16,700	214179921
FJ5AN*C48L	-	15.5	13.0	7.8	17,400	214180168
FEVB0048**+NAVA54801CK	-	15.5	12.5	7.8	17,400	214277589
FG5ANXC48L	-	15.5	12.5	7.8	16,700	214276886
FMA5X36**AL	-	15.5	12.5	7.8	17,000	214424283
F55AA*C48L	-	15.5	13.0	7.8	17,400	216463995
FM(C,U)5S36**AL	-	15.2	12.0	8.0	17,300	218452400
CAA**4821AM	58SUB060M17*16	15.2	12.0	7.8	17,600	214141625
CAA**4821AM	59SU5B100M21**22	15.2	12.0	7.8	17,600	214142628
CAA**4821AM	58TNB110C21*20	15.2	12.0	7.8	17,500	214141829
CAA**4821AM	58TPB090V21*20	15.2	12.0	7.8	17,500	214141938
CAA**4821AM	59TP6C100V21**22	15.2	11.7	7.8	17,500	214142854
CAA**4821AM	58S(B,C)B090M21*20	15.2	12.0	7.8	17,500	214141333
CAA**4321AM	59SC2E100M21**20	15.2	12.0	7.8	17,900	214140506
CAA**4821AM	58S(B,C)B110M21*20	15.2	12.0	7.8	17,600	214141363
CAA**4821AM	59SC2E100M21**20	15.2	12.0	7.8	17,600	214142252
CAA**4821AM	58SPB090V21*20	15.2	12.0	7.8	17,500	214141447
CVAMA4421XMA	58SUA040E17*12	15.2	12.0	7.8	18,100	214143041
CAA**4321AM	58CUA100C21*20	15.2	12.0	7.8	17,600	214139778
CAA**3721AM	58CUA060C17*16	15.2	12.0	7.8	17,100	214138079
CAA**4321AM	58CUA060C17*16	15.2	12.0	7.8	17,000	214139751
CAA**3721AM	58S(B,C)B090M21*20	15.2	12.0	7.8	17,900	214138223
CAA**4821AM	58SUB080M21*20	15.2	12.0	7.8	17,300	214141657
CAA**4321AM	58S(B,C)B110M21*20	15.2	12.0	7.8	18,000	214139969
CAA**4321AM	58S(B,C)B090M21*20	15.2	12.0	7.8	17,900	214139939
CVAVA4224XMA	58SUB100M21*20	15.2	12.0	7.8	18,100	214144586
FJ5AN*C42L	-	15.2	12.5	7.8	16,100	214179884
F55AA*C42L	-	15.2	12.5	7.8	16,100	216463968
FM(C,U)5Z36**AL	-	15.2	12.5	7.8	17,200	215829095

Same unit, other model numbers1

These model numbers have exactly the same certified ratings and matchups as the Carrier 27SCA536A**30: the same equipment under another brand, or a variant code for voltage, colour or market. Everything on this page applies to them.

Carrier 27SPA636A**30

Yearly running cost in 10 large cities$1,028-$2,761

Phoenix, AZ$1,269/yr
Miami, FL$1,028/yr
Houston, TX$1,138/yr
Atlanta, GA$1,154/yr
Los Angeles, CA$1,123/yr
New York, NY$2,761/yr
Chicago, IL$2,242/yr
Denver, CO$1,864/yr
Seattle, WA$1,146/yr
Minneapolis, MN$2,308/yr

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

Questions6

What is the SEER2 rating of the Carrier 27SCA536A**30?: The Carrier 27SCA536A**30 is rated at up to 16.0 SEER2 and 13.0 EER2 for cooling and up to 8.0 HSPF2 for heating. The exact figure depends on the indoor unit it is paired with; across its 30 certified matchups SEER2 ranges from 15.2-16.0.
Is the Carrier 27SCA536A**30 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 3-ton model.
How much does the Carrier 27SCA536A**30 cost to run per year?: At its rated efficiency it costs about $1,028-$2,761 a year in electricity in large U.S. cities, depending on climate and local rates - for example $1,269 in Phoenix and $2,308 in Minneapolis. The calculator on this page works it out for your city and compares it with your current system.
Is the Carrier 27SCA536A**30 the same as the Carrier 27SPA636A**30?: Yes, as far as the certified ratings go. ENERGY STAR lists both model numbers with identical efficiency, capacity and matchups, which means the same outdoor unit sold under a different brand or with a minor variant code (voltage, colour or region). The full list is on this page.
Which indoor units work with the Carrier 27SCA536A**30?: ENERGY STAR lists 30 certified combinations for this outdoor unit. The highest-rated ones use FEVA0048**+NAVA54801CK, FT5AN(B,X)C48L, FJ5AN*C48L.
What refrigerant does the Carrier 27SCA536A**30 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 $1,260/yrYou save $545/yrSee details ↓

1. Where you live

StateCityElectricity ¢ per kWh

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.

Cooling hours full-load hours per yearHeating hours full-load hours per year

2. The heat pump Carrier 27SCA536A**30

Find a model (fills in the ratings below)

SEER2 cooling efficiencyHSPF2 heating efficiencyCooling capacity BTU/hHeating capacity BTU/h

3. What it replaces

Current heatingFurnace efficiency (AFUE %)Gas price, $/thermCurrent coolingOld AC rating SEER2 (10 ≈ 15+ years old)

4. Price replace the example with your quote

Installed price, $Rebates and incentives, $ utility, state

Heat pump, per year: $1,260
Current system, per year: $1,805
You save per year: $545
Payback: 23.9 years
Net after 10 years: -$7,553

Cooling $770Heating $490Electricity used: 7,875 kWhSaved vs. a minimum-efficiency heat pump: $124

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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Bryant GH5SAN536**AA16.0 SEER2 · 8.0 HSPF2
Frigidaire FSH4BF5M2SX36K16.0 SEER2 · 8.0 HSPF2
Bryant 235SAN036**AA16.0 SEER2 · 8.0 HSPF2
Grandaire W5H5S36*K*AAA16.0 SEER2 · 8.0 HSPF2
AIREASE A7HP14F36P-**A16.0 SEER2 · 8.0 HSPF2
Heil R5H5S36*K*AAA16.0 SEER2 · 8.0 HSPF2

See all 302 3 ton central heat pumps, ranked

Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), certification of June 16, 2026. How we use the data.