MMLD048S6S-1P
Lennox · HP - Mini or Multi Split
18–20BTU/Wh
9.5–10.4BTU/Wh
47000–48000BTU/hr
Yes
Lennox MMLD048S6S-1P: SEER2 20 BTU/Wh, around the middle of the range for air-source heat pumps (category median 20 BTU/Wh).
Where this model sits
The Lennox MMLD048S6S-1P is a 48000 BTU/hr hp - mini or multi split using R-32, a refrigerant with moderate global warming potential (GWP 675). At 20 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 more efficient than the peer median of 18 BTU/Wh. In this size range, comparable Midea models average 18.8 BTU/Wh and Airquest models average 18.4 BTU/Wh.
Specifications
| Efficiency | |
|---|---|
| SEER2 (best combination) | 20BTU/Wh |
| SEER2 (worst combination) | 18BTU/Wh |
| HSPF2 (best combination) | 10.4BTU/Wh |
| HSPF2 (worst combination) | 9.5BTU/Wh |
| EER2 (best combination) | 12.2BTU/Wh |
| COP at 5 °F | 1.80 |
| Capacity | |
| Cooling Capacity (max) | 48000BTU/hr |
| Cooling Capacity (min) | 47000BTU/hr |
| Heating at 47 °F | 54000BTU/hr |
| Heating at 17 °F | 42000BTU/hr |
| Heating at 5 °F | 54000BTU/hr |
All 25 specifications
| Configuration | |
|---|---|
| Product Type | HP - Mini or Multi Split |
| Compressor Staging | Continuously variable |
| Cold Climate Certified | Yes |
| Connected Capability | No |
| Series | Multi-Position Air Handler - Premium (CAC) |
| Indoor-Unit Combinations Rated | 3 |
| Refrigerant | |
| Type | R-32 |
| GWP Rating | R-32 (GWP:675 | Lower GWP) |
| Identifiers | |
| Model Number | MMLD048S6S-1P |
| ENERGY STAR ID | ES_1082496_MMLD048S6S-1P_03102026090000_29218214252 |
| Partner | Lennox Industries |
| Date Certified | 2026-04-27 |
| Available From | 2026-04-03 |
| Markets | United States, Canada |
Documentation
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