Y5WZ048BE1*
York · Geothermal Heat Pump
ENERGY STAR CertifiedGeothermal Heat Pumps →
EER
16.1–20.1BTU/Wh
COP
3.30–3.90
Refrigerant
Other
Rated Across
2loop types
Low EERENERGY STAR Most Efficient
York Y5WZ048BE1*: EER 20.1 BTU/Wh, lower than 91% of geothermal heat pumps (category median 24.1 BTU/Wh).
Where this model sits
EER20.1BTU/Wh
16.1median 24.147.6
Lower than 91% of geothermal heat pumps.
COP3.90
3.10median 4.405.60
The York Y5WZ048BE1* is a 20.1 BTU/Wh geothermal heat pump using Other. At 20.1 BTU/Wh it ranks in the bottom 9% of the 2,204 certified geothermal heat pumps models.
Specifications
| Efficiency | |
|---|---|
| EER (best configuration) | 20.1BTU/Wh |
| EER (worst configuration) | 16.1BTU/Wh |
| COP (best configuration) | 3.90 |
| COP (worst configuration) | 3.30 |
| Configuration | |
| Loop Types Rated | 2 |
| Total Configurations Rated | 2 |
| Model Name | Affinity |
| Refrigerant | Other |
All 14 specifications
| Identifiers | |
|---|---|
| Model Number | Y5WZ048BE1* |
| ENERGY STAR ID | ES_1036337_Y5WZ048BE1*_03032026103003_01218158069 |
| Partner | WaterFurnace International, Incorporated |
| Date Qualified | 2026-07-23 |
| Available From | 2025-01-13 |
| Markets | United States, Canada |
Documentation
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