NS21H24MA5-**A
NS21H SERIES · NS21H Series · source records, page 5
91 published source records · source checked Sep 21, 2026
Each efficiency range summarizes published EPA records for NS21H24MA5-**A. The highest SEER2 and HSPF2 may belong to different combinations. Open a source record below to see its ratings and the scope of its component information.
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Heating performance & equipment details
Ranges include the 91 published source records for this model. Values in different rows may describe different configurations. Open an individual record to compare values from the same test configuration.
| Reported field | Value / range | Records supplying it |
|---|---|---|
| SEER2 · BTU/Wh | 15.2–20.5 | 91 / 91 |
| EER2 · BTU/Wh | 11.2–13.4 | 91 / 91 |
| HSPF2 · BTU/Wh | 8.2–10.2 | 91 / 91 |
| Cooling capacity · BTU/h | 21,600–24,000 | 91 / 91 |
| Heating capacity at 47°F / 8.3°C · BTU/h | 24,000–27,400 | 91 / 91 |
| Heating capacity at 17°F / −8.3°C · BTU/h | 18,800–22,400 | 91 / 91 |
| Heating capacity at 5°F / −15°C · BTU/h | 13,900–18,600 | 91 / 91 |
| COP at 5°F / −15°C | 1.7–2.3 | 91 / 91 |
| Equipment / loop type | HP - Split System | 91 / 91 |
| Refrigerant / source-reported GWP | R-454B (GWP:470 | Lower GWP) | 91 / 91 |
| Compressor staging | Continuously variable | 91 / 91 |
| Connected capability | No | 91 / 91 |
47°F = 8.3°C; 17°F = −8.3°C; 5°F = −15°C. COP is dimensionless. These are reported rating points, not a prediction of a particular home’s heat demand or operating limit.
Matched systems
Each row is one source record. The component column distinguishes listed combinations from outdoor-model ratings without an indoor configuration.
| Indoor unit / required furnace | SEER2BTU/Wh | HSPF2BTU/Wh | Heating capacity at 5°F / −15°CBTU/h | COP at 5°F / −15°C | Record & comparison |
|---|---|---|---|---|---|
NCU[C,U]30BT5*-**+TDR+ furnace: NF80U090T4B*Cold climate designationAHRI reference: 217642513 | 16.50 | 9.60 | 17800 | 2.08 | EPA 4481661 → |
NCHC30BT5*-**+TDR+ furnace: NF80U090T4B*Cold climate designationAHRI reference: 217642610 | 16.50 | 9.00 | 17300 | 2.04 | EPA 4481698 → |
NCDC36CT5*-**+TDRAHRI reference: 217642613 | 16.50 | 8.20 | 16800 | 1.98 | EPA 4481701 → |
NCU[C,U]30AT5*-**+TDRCold climate designationAHRI reference: 217642425 | 16.00 | 9.40 | 18000 | 2.04 | EPA 4481583 → |
NCU[C,U]30BT5*-**+TDRCold climate designationAHRI reference: 217642432 | 16.00 | 9.40 | 18000 | 2.04 | EPA 4481590 → |
NCDC36BT5*-**+TDRAHRI reference: 217642597 | 16.00 | 8.20 | 16700 | 1.98 | EPA 4481687 → |
NCHC24AT5*-**+TDRCold climate designationAHRI reference: 217642599 | 16.00 | 8.20 | 18100 | 1.94 | EPA 4481688 → |
NCHC30BT5*-**+TDRCold climate designationAHRI reference: 217642598 | 16.00 | 8.50 | 17500 | 1.98 | EPA 4481801 → |
NCHC30AT5*-**+TDRCold climate designationAHRI reference: 217642600 | 15.50 | 8.50 | 17500 | 2.00 | EPA 4481689 → |
NCU[C,U]24AT5*-**+TDRAHRI reference: 217642592 | 15.20 | 8.20 | 14700 | 1.70 | EPA 4481682 → |
NCU[C,U]24BT5*-**+TDRAHRI reference: 217642594 | 15.20 | 8.20 | 14700 | 1.70 | EPA 4481684 → |
Sources and documentation
The table uses public EPA ENERGY STAR data. AHRI references are reported by EPA and have not been independently checked with AHRI. Source records do not establish availability, installation suitability or rebate eligibility.
No manufacturer manual has been matched to this model.
Collection method, revision history and known limitations →