York / AIR-SOURCE HEAT PUMP

YZT24B21

AFFINITY

63 published source records · source checked Sep 21, 2026

SEER2 range16–18BTU/Wh
HSPF2 range7.8BTU/Wh
Cooling capacity21,200–24,000BTU/h

Each efficiency range summarizes published EPA records for YZT24B21. 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.

Model patterns and component strings are preserved exactly. How to read model patterns and combinations →

Heating performance & equipment details

Ranges include the 63 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 fieldValue / rangeRecords supplying it
SEER2 · BTU/Wh16–1863 / 63
EER2 · BTU/Wh11.7–1463 / 63
HSPF2 · BTU/Wh7.863 / 63
Cooling capacity · BTU/h21,200–24,00063 / 63
Heating capacity at 47°F / 8.3°C · BTU/h22,400–23,80063 / 63
Heating capacity at 17°F / −8.3°C · BTU/h14,200–15,20063 / 63
Heating capacity at 5°F / −15°C · BTU/h10,900–12,20063 / 63
COP at 5°F / −15°C1.8–2.0663 / 63
Equipment / loop typeHP - Split System63 / 63
Refrigerant / source-reported GWPR-410A (GWP:2088)63 / 63
Compressor stagingTwo-stage63 / 63
Connected capabilityNo63 / 63

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 furnaceSEER2BTU/WhHSPF2BTU/WhHeating capacity at 5°F / −15°CBTU/hCOP at 5°F / −15°CRecord & comparison
XAFB36DXXN1+TXV+ furnace: Y82E080B12LMPS1AHRI reference: 21177079218.007.80109001.80EPA 3990391
XAFB36DBAN1+ furnace: Y82E080B12LMPS1AHRI reference: 21177079418.007.80109001.80EPA 3990393
XAFB36DXXN1+TXV+ furnace: Y81E100B12SMPS1AHRI reference: 21247553118.007.80110001.80EPA 3991078
XAFB36DXXN1+TXV+ furnace: Y81E100B12LMPS1AHRI reference: 21247553318.007.80110001.80EPA 3991079
XAFB36DBAN1+ furnace: Y81E100B12LMPS1AHRI reference: 21247553918.007.80110001.80EPA 3991080
XAFB36DBAN1+ furnace: Y81E100B12SMPS1AHRI reference: 21247553518.007.80110001.80EPA 3991081
XAFB36DBAN1+ furnace: TM8Y080B12MP11AHRI reference: 20919606617.007.80110001.98EPA 2479805
XAFA30DBAN1+ furnace: TM8Y060A12MP11AHRI reference: 20919414217.007.80113001.94EPA 2480132
XAFB36DXXN1+TXV+ furnace: TM8Y080B12MP11AHRI reference: 20736085517.007.80110001.98EPA 2480470
XAFB36DBAN1+EUE10AAHRI reference: 21295601417.007.80109002.02EPA 2649205
XAFB36DBAN1+EBE12AAHRI reference: 21295600917.007.80109002.02EPA 2649207
XAFB36DBAN1+EBE10AAHRI reference: 21295600417.007.80109002.02EPA 2649211
XAFB36DXXN1+EUE10A+TXVAHRI reference: 21295600017.007.80109002.02EPA 2649213
XAFB36DXXN1+EBE10A+TXVAHRI reference: 21295599517.007.80109002.02EPA 2649214
XAFB36DXXN1+EBE12A+TXVAHRI reference: 21295599717.007.80109002.02EPA 2649215
XAFB36DBAN1+EUE20AAHRI reference: 21029590017.007.80109002.02EPA 2649398
XAFB36DBAN1+EUE15AAHRI reference: 21029589617.007.80109002.02EPA 2649410
XAFB36DBAN1+EBE20AAHRI reference: 21029589417.007.80109002.02EPA 2649411
XAFB36DBAN1+EBE17AAHRI reference: 21029589217.007.80109002.02EPA 2649414
XAFB36DBAN1+EBE15AAHRI reference: 21029589017.007.80109002.02EPA 2649415

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 →