Our take in 30 seconds
Best for: mild climates or homes with backup heatStrengths
- Uses newer, lower-impact R-454B refrigerant
- Also sold under 48 other badges, so you can compare more quotes for the same unit
Good to know
- Only 50% of its heat output remains at 5°F; plan on backup heat in hard freezes
- Single-stage compressor runs on/off at full power, so it is less smooth than inverter models
Running-cost calculator
Pre-filled with EIA prices · edit any fieldUses the base certified SEER2 (15.2) and HSPF2 (8.5). Assumes the unit is correctly sized. How we calculate.
Heating capacity as it gets colder
A heat pump's output falls as outdoor temperature drops. This is the certified heat output of the Carrier 27SCA524A**30* at the three ENERGY STAR test temperatures (cooling capacity is 24,400 BTU/h for reference).
Retention at 17°F: 63% · at 5°F: 50%. Learn how to use these numbers in our cold-climate guide.
Estimated running cost in every state
Same unit, very different bills: from about $668 a year in Louisiana to $2,563 in Maine, driven by local electricity prices and how much heating or cooling the climate needs. Click a column to sort.
| State | Price | Heating | Cooling | Total / yr |
|---|---|---|---|---|
| Louisiana | 12.87¢ | $254 | $413 | $668 |
| Florida | 14.99¢ | $190 | $578 | $768 |
| Mississippi | 14.43¢ | $367 | $417 | $784 |
| Washington | 14.63¢ | $702 | $82 | $784 |
| Nevada | 12.72¢ | $431 | $368 | $799 |
| Tennessee | 13.42¢ | $530 | $280 | $811 |
| Arizona | 15.05¢ | $297 | $532 | $829 |
| Oregon | 15.92¢ | $719 | $115 | $834 |
| North Carolina | 14.95¢ | $549 | $312 | $861 |
| Kentucky | 13.80¢ | $623 | $244 | $867 |
| Arkansas | 14.37¢ | $527 | $346 | $873 |
| South Carolina | 15.76¢ | $489 | $405 | $894 |
| Georgia | 15.90¢ | $494 | $408 | $902 |
| Utah | 13.31¢ | $714 | $192 | $906 |
| Texas | 15.91¢ | $404 | $511 | $915 |
| Alabama | 16.33¢ | $507 | $419 | $927 |
| Oklahoma | 14.82¢ | $586 | $357 | $943 |
| Idaho | 13.37¢ | $793 | $150 | $943 |
| New Mexico | 16.51¢ | $699 | $265 | $964 |
| Nebraska | 13.54¢ | $803 | $196 | $998 |
| West Virginia | 16.31¢ | $829 | $209 | $1,038 |
| Missouri | 16.02¢ | $769 | $283 | $1,052 |
| Virginia | 17.64¢ | $747 | $311 | $1,059 |
| Kansas | 15.47¢ | $786 | $273 | $1,059 |
| Wyoming | 14.43¢ | $1,019 | $116 | $1,134 |
| Colorado | 17.17¢ | $970 | $193 | $1,163 |
| North Dakota | 13.31¢ | $1,090 | $96 | $1,186 |
| Indiana | 17.02¢ | $961 | $232 | $1,193 |
| Delaware | 18.70¢ | $898 | $300 | $1,198 |
| Montana | 15.57¢ | $1,099 | $112 | $1,212 |
| South Dakota | 15.15¢ | $1,069 | $158 | $1,227 |
| California | 29.75¢ | $756 | $478 | $1,234 |
| Iowa | 17.06¢ | $1,108 | $205 | $1,313 |
| Ohio | 19.38¢ | $1,094 | $249 | $1,343 |
| Maryland | 21.40¢ | $1,027 | $344 | $1,371 |
| Illinois | 19.32¢ | $1,146 | $248 | $1,394 |
| Minnesota | 17.20¢ | $1,311 | $152 | $1,463 |
| Pennsylvania | 21.77¢ | $1,229 | $280 | $1,509 |
| Wisconsin | 19.41¢ | $1,370 | $187 | $1,557 |
| New Jersey | 24.61¢ | $1,251 | $356 | $1,606 |
| District of Columbia | 25.98¢ | $1,174 | $459 | $1,632 |
| Connecticut | 24.51¢ | $1,523 | $256 | $1,778 |
| Michigan | 22.99¢ | $1,558 | $221 | $1,779 |
| Vermont | 23.84¢ | $1,750 | $172 | $1,922 |
| Rhode Island | 28.18¢ | $1,750 | $271 | $2,022 |
| Hawaii | 47.18¢ | $67 | $1,969 | $2,036 |
| New York | 28.65¢ | $1,780 | $299 | $2,079 |
| New Hampshire | 27.64¢ | $1,951 | $222 | $2,173 |
| Massachusetts | 30.48¢ | $1,979 | $294 | $2,273 |
| Alaska | 29.41¢ | $2,491 | $47 | $2,538 |
| Maine | 32.11¢ | $2,357 | $206 | $2,563 |
Same equipment sold under other brands
These listings share the same certifying manufacturer (Carrier Corporation) and identical certified capacities and efficiency ratings, so they are almost certainly the same hardware with a different badge. If you get quotes for any of them, you are comparing installation price and warranty, not equipment. How rebadging works.
- Bryant 235SAN024**AA*
- Bryant 246SAN024**AA*
- Carrier 27SPA624A**30*
- Airquest B5H6S24*K*AAA*
Plus 44 more identical listings in the ENERGY STAR database.
Similar-size alternatives
Other ducted split system units within ±15% of this model's cooling capacity, sorted by efficiency. Cost difference is versus the Carrier 27SCA524A**30* at U.S.-average rates.
| Model | Cooling BTU/h | SEER2 | HSPF2 | 5°F kept | Est. yearly cost | |
|---|---|---|---|---|---|---|
| Carrier 27VNA324A*030* | 23,800 | 18–23 | 10.5 | 82% | $1,044 (−$97) | Compare |
| Rheem RP19AY24AJVC | 22,800 | 20–21 | 10 | 81% | $925 (−$216) | Compare |
| Trane 5TWR7024A1 | 24,000 | 15.2–17.1 | 11 | 79% | $907 (−$234) | Compare |
| Trane 5TWX7024A1 | 24,000 | 15.2–18 | 11 | 79% | $907 (−$234) | Compare |
| Bryant 37MUHAQ24AA3 | 24,000 | 16–18.7 | 10.5 | 86% | $991 (−$150) | Compare |
| ACiQ ACIQ-24-HPD | 24,000 | 16–18.6 | 10.5 | 83% | $1,019 (−$122) | Compare |
Full specifications
| Brand | Carrier |
| Outdoor model | 27SCA524A**30* |
| Certified by | Carrier Corporation |
| Product type | Ducted split system |
| Compressor | Single-stage |
| Refrigerant | R-454B |
| Cooling capacity | 24,400 BTU/h |
| Nominal size | 2 tons |
| SEER2 (certified range) | 15.2 – 16.5 |
| EER2 (best) | 13 |
| HSPF2 (best) | 8.5 |
| Heating capacity @ 47°F | 24,000 BTU/h |
| Heating capacity @ 17°F | 15,200 BTU/h |
| Heating capacity @ 5°F | 11,900 BTU/h |
| COP @ 5°F | 2.26 |
| ENERGY STAR cold-climate | No |
| Certified indoor pairings | 217 |
| Latest certification | 2026-10 |
Source: ENERGY STAR Certified Heat Pumps (U.S. EPA), retrieved November 7, 2026. Capacities and HSPF2 are the highest values across certified pairings; confirm your exact system's AHRI reference number with your installer.
Frequently asked questions
How much does the Carrier 27SCA524A**30* cost to run per year?
At the U.S. average residential electricity price of 18.16¢/kWh and typical national heating and cooling hours, we estimate about $1,141 per year ($820 heating, $321 cooling). It ranges from about $668 in Louisiana to $2,563 in Maine.
Does the Carrier 27SCA524A**30* work in cold weather?
It is not ENERGY STAR cold-climate certified. It delivers 11,900 BTU/h at 5°F (50% of its 47°F capacity), so in very cold climates expect more reliance on backup heat.
What size is the Carrier 27SCA524A**30*?
It is rated at 24,400 BTU/h of cooling, roughly 2 tons, and 24,000 BTU/h of heating at 47°F. Proper sizing should be confirmed with a Manual J load calculation.
Is the Carrier 27SCA524A**30* the same as the Bryant 235SAN024**AA*?
Very likely. Both are certified by Carrier Corporation with identical capacities and efficiency ratings in the ENERGY STAR database, which indicates the same equipment sold under different brands.