York YZT24B21 heat pump (AHRI 209405508)
York YZT24B21 heat pump (AHRI 209405508) appears in the U.S. EPA ENERGY STAR "Certified Heat Pumps" dataset, which lists outdoor and indoor unit combinations certified to the program specification (record 2477800, certified 2025-04-11). 4 certified indoor/outdoor combinations of outdoor model YZT24B21 share these rated values. EPA publishes these values: SEER2 (Btu/Wh) 16.00; EER2 (Btu/Wh) 12.00; HSPF2 (Btu/Wh) 7.80; Cooling capacity (Btu/h) 22200; Heating capacity at 47 °F (Btu/h) 22800; Heating capacity at 17 °F (Btu/h) 14400; Heating capacity at 5 °F (Btu/h) 11000; COP at 5 °F 1.98; Product type HP - Split System; Cold climate No. The listing records ENERGY STAR certification and the rated values reported to EPA. It is not a determination that any building, installation or design complies with a code.
Specifications
| Series | AFFINITY |
| Refrigerant | R-410A (GWP:2088) |
| COP at 5 °F | 1.98 |
| Cold climate | No |
| Product type | HP - Split System |
| EER2 (Btu/Wh) | 12.00 |
| HSPF2 (Btu/Wh) | 7.80 |
| SEER2 (Btu/Wh) | 16.00 |
| Compressor staging | Two-stage |
| Connected capability | No |
| Cooling capacity (Btu/h) | 22200 |
| Meets most efficient criteria | No |
| Meets peak cooling requirements | Yes |
| Heating capacity at 5 °F (Btu/h) | 11000 |
| Heating capacity at 17 °F (Btu/h) | 14400 |
| Heating capacity at 47 °F (Btu/h) | 22800 |
| AHRI reference number (lowest in group) | 209405508 |
| Certified combinations with these ratings | 4 |