Trane 5TWX7036A1vsZERO Z4SOV-36HDMB-US
Side-by-side heat pump comparison
Trane 5TWX7036A1
SEER2
15.2–18BTU/Wh
HSPF2
8.1–9.4BTU/Wh
Cooling Capacity
31400–34800BTU/hr
Cold Climate
Yes
Cold climate certified
ZERO Z4SOV-36HDMB-US
SEER2
20–23.1BTU/Wh
HSPF2
9.2–10BTU/Wh
Cooling Capacity
35000BTU/hr
Cold Climate
Yes
Cold climate certified
Key differences
ZERO Z4SOV-36HDMB-US is 22% more efficient at 23.1 BTU/Wh versus 18.0 BTU/Wh for the Trane 5TWX7036A1. The ZERO Z4SOV-36HDMB-US is larger at 35000 BTU/hr versus 34800 BTU/hr. Overall, the ZERO Z4SOV-36HDMB-US sits higher in the category, ranking above 80% of certified air-source heat pumps.
Efficiency
| Spec | Trane | ZERO |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 18 | 23.1 |
| SEER2 (worst combination)(BTU/Wh) | 15.2 | 20 |
| HSPF2 (best combination)(BTU/Wh) | 9.4 | 10 |
| HSPF2 (worst combination)(BTU/Wh) | 8.1 | 9.2 |
| EER2 (best combination)(BTU/Wh) | 12.7 | 12 |
| COP at 5 °F | 2.20 | 2 |
Capacity
| Spec | Trane | ZERO |
|---|---|---|
| Cooling Capacity (max)(BTU/hr) | 34800 | 35000 |
| Cooling Capacity (min)(BTU/hr) | 31400 | 35000 |
| Heating at 47 °F(BTU/hr) | 33800 | 37000 |
| Heating at 17 °F(BTU/hr) | 30200 | 31000 |
| Heating at 5 °F(BTU/hr) | 25000 | 26000 |
Configuration
| Spec | Trane | ZERO |
|---|---|---|
| Product Type | HP - Split System | HP - Mini or Multi Split |
| Compressor Staging | Two-stage | Continuously variable |
| Cold Climate Certified | Yes | Yes |
| Connected Capability | No | No |
| Series | 17 Multi-Speed Heat Pump with WeatherGuard Top | Z4S Series |
| Indoor-Unit Combinations Rated | 519 | 3 |
Refrigerant
| Spec | Trane | ZERO |
|---|---|---|
| Type | R-454B | R-454B |
| GWP Rating | R-454B (GWP:470 | Lower GWP) | R-454B (GWP:470 | Lower GWP) |