Lennox ML18XC2-060-463A**vsWEATHERMAKER PH5SAP548**AA*
Side-by-side light commercial unit comparison
Lennox ML18XC2-060-463A**
SEER2
15.2–15.6BTU/Wh
EER2
12BTU/Wh
Class
Very Small AC
System
Split
WEATHERMAKER PH5SAP548**AA*
SEER2
15.2–15.5BTU/Wh
EER2
12BTU/Wh
Class
Very Small HP
System
Split
Key differences
Both models are closely matched on seer2: 15.6 vs 15.5 BTU/Wh. The Lennox ML18XC2-060-463A** is larger at 15.6 BTU/Wh versus 15.5 BTU/Wh. WEATHERMAKER PH5SAP548**AA* uses a lower-impact refrigerant: R-454B (GWP 470) versus R-410A (GWP 2088). Overall, the Lennox ML18XC2-060-463A** sits higher in the category, ranking above 54% of certified light commercial hvac.
Efficiency
| Spec | Lennox | WEATHERMAKER |
|---|---|---|
| SEER2 (best combination)(BTU/Wh) | 15.6 | 15.5 |
| SEER2 (worst combination)(BTU/Wh) | 15.2 | 15.2 |
| EER2 (best combination)(BTU/Wh) | 12 | 12 |
| EER2 (worst combination)(BTU/Wh) | 12 | 12 |
Capacity & Configuration
| Spec | Lennox | WEATHERMAKER |
|---|---|---|
| Cooling Capacity (max)(kBTU/hr) | 59 | — |
| Cooling Capacity (min)(kBTU/hr) | 57 | — |
| Equipment Class | Very Small AC | Very Small HP |
| System Type | Split | Split |
| Heating Section | All Other | Electric Resistance |
| Cold Climate Certified | NA | No |
| Combinations Rated | 24 | 3 |
Refrigerant
| Spec | Lennox | WEATHERMAKER |
|---|---|---|
| Type | R-410A | R-454B |
| GWP Rating | R-410A (GWP:2088) | R-454B (GWP:470 | Lower GWP) |