D5CUHAH36AAK
Viessmann · HP - Split System
15.8–18BTU/Wh
9.4–10.3BTU/Wh
36000BTU/hr
Yes
Viessmann D5CUHAH36AAK: SEER2 18 BTU/Wh, around the middle of the range for air-source heat pumps (category median 20 BTU/Wh).
Where this model sits
The Viessmann D5CUHAH36AAK is a 36000 BTU/hr hp - split system using R-454B, a refrigerant with moderate global warming potential (GWP 470). At 18 BTU/Wh it ranks around the middle of the 12,218 certified air-source heat pumps models. Among similar-sized air-source heat pumps (within 10% of its size), it is less efficient than the peer median of 19 BTU/Wh. In this size range, comparable Midea models average 20 BTU/Wh and TOSOT models average 21 BTU/Wh.
Specifications
| Efficiency | |
|---|---|
| SEER2 (best combination) | 18BTU/Wh |
| SEER2 (worst combination) | 15.8BTU/Wh |
| HSPF2 (best combination) | 10.3BTU/Wh |
| HSPF2 (worst combination) | 9.4BTU/Wh |
| EER2 (best combination) | 12BTU/Wh |
| COP at 5 °F | 1.90 |
| Capacity | |
| Cooling Capacity (max) | 36000BTU/hr |
| Cooling Capacity (min) | 36000BTU/hr |
| Heating at 47 °F | 38000BTU/hr |
| Heating at 17 °F | 33000BTU/hr |
| Heating at 5 °F | 39000BTU/hr |
All 25 specifications
| Configuration | |
|---|---|
| Product Type | HP - Split System |
| Compressor Staging | Continuously variable |
| Cold Climate Certified | Yes |
| Connected Capability | No |
| Series | D5C Series |
| Indoor-Unit Combinations Rated | 5 |
| Refrigerant | |
| Type | R-454B |
| GWP Rating | R-454B (GWP:470 | Lower GWP) |
| Identifiers | |
| Model Number | D5CUHAH36AAK |
| ENERGY STAR ID | ES_1020846_D5CUHAH36AAK_07082026013002_28218668524 |
| Partner | Carrier Corporation |
| Date Certified | 2026-07-14 |
| Available From | 2026-05-15 |
| Markets | United States, Canada |
Documentation
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