York YZT48B21vsZERO ZSOV-48HDM-US
Side-by-side heat pump comparison
York YZT48B21
SEER2
16–17BTU/Wh
HSPF2
8.1BTU/Wh
Cooling Capacity
45500–47500BTU/hr
Refrigerant
R-410A
GWP 2088 · Higher
ZERO ZSOV-48HDM-US
SEER2
18.9BTU/Wh
HSPF2
10BTU/Wh
Cooling Capacity
48000BTU/hr
Cold Climate
Yes
Cold climate certified
Key differences
ZERO ZSOV-48HDM-US is 10% more efficient at 18.9 BTU/Wh versus 17.0 BTU/Wh for the York YZT48B21. The ZERO ZSOV-48HDM-US is larger at 48000 BTU/hr versus 47500 BTU/hr.
Efficiency
| Spec | York | ZERO |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 17 | 18.9 |
| SEER2 (worst combination)(BTU/Wh) | 16 | 18.9 |
| HSPF2 (best combination)(BTU/Wh) | 8.1 | 10 |
| HSPF2 (worst combination)(BTU/Wh) | 8.1 | 10 |
| EER2 (best combination)(BTU/Wh) | 12.5 | 9.3 |
| COP at 5 °F | 2.32 | 1.85 |
Capacity
| Spec | York | ZERO |
|---|---|---|
| Cooling Capacity (max)(BTU/hr) | 47500 | 48000 |
| Cooling Capacity (min)(BTU/hr) | 45500 | 48000 |
| Heating at 47 °F(BTU/hr) | 48000 | 50000 |
| Heating at 17 °F(BTU/hr) | 33000 | 29000 |
| Heating at 5 °F(BTU/hr) | 27000 | 35000 |
Configuration
| Spec | York | ZERO |
|---|---|---|
| Product Type | HP - Split System | HP - Mini or Multi Split |
| Compressor Staging | Two-stage | Continuously variable |
| Cold Climate Certified | No | Yes |
| Connected Capability | No | No |
| Series | AFFINITY | ZMSB Series |
| Indoor-Unit Combinations Rated | 18 | 1 |
Refrigerant
| Spec | York | ZERO |
|---|---|---|
| Type | R-410A | R-410A |
| GWP Rating | R-410A (GWP:2088) | R-410A (GWP:2088) |