Lennox / LIGHT COMMERCIAL HVAC
LGM156U5M**Y,G,J
LGM156U5M**Y,G,J · EPA record 3943287
Source checked Sep 21, 2026
Performance & equipment details
Values below belong to EPA record 3943287. Temperature points and test metrics are preserved as reported. Missing and zero values are not substituted with estimates.
| Metric or attribute | Source value |
|---|---|
| SEER2 · BTU/Wh | Not supplied |
| EER2 · BTU/Wh | Not supplied |
| IEER · BTU/Wh | 19.00 |
| SEER · BTU/Wh | Not supplied |
| EER · BTU/Wh | 12 |
| HSPF2 · BTU/Wh | Not supplied |
| HSPF · BTU/Wh | Not supplied |
| Cooling capacity · kBTU/h | 150 |
| Heating capacity at 47°F / 8.3°C · kBTU/h | Not supplied |
| Heating capacity at 17°F / −8.3°C · kBTU/h | Not supplied |
| Heating capacity at 5°F / −15°C · kBTU/h | Not supplied |
| COP at 47°F / 8.3°C | Not supplied |
| COP at 17°F / −8.3°C | Not supplied |
| COP at 5°F / −15°C | Not supplied |
| Commercial equipment class | Small or Large AC |
| System construction | Packaged |
| Refrigerant / source-reported GWP | R-454B (GWP:470 | Lower GWP) |
| Refrigerant | R-454B |
This listed system
These ratings apply to the listed configuration. Changing a component may change performance.
Outdoor unit
+LGM156U5M**Y,G,JIndoor unit
Integrated single packageAHRI reference not supplied · reported by ENERGY STAR; no direct AHRI data connection.
All source records for LGM156U5M**Y,G,J →Specifications & provenance
Every value below is preserved from the source record. Checked Sep 21, 2026. Asterisks and other model wildcards are retained as published.
| Source field | Reported value | Evidence |
|---|---|---|
| type | Small or Large AC | EPA Sep 21, 2026 |
| pd id | 3943287 | EPA Sep 21, 2026 |
| markets | United States, Canada | EPA Sep 21, 2026 |
| brand name | Lennox | EPA Sep 21, 2026 |
| model name | LGM156U5M**Y,G,J | EPA Sep 21, 2026 |
| ieer rating | 19.00 | EPA Sep 21, 2026 |
| cold climate | NA | EPA Sep 21, 2026 |
| model number | LGM156U5M**Y,G,J | EPA Sep 21, 2026 |
| date qualified | 2025-01-23T00:00:00.000 | EPA Sep 21, 2026 |
| refrigerant type | R-454B | EPA Sep 21, 2026 |
| eer rating btu wh | 12 | EPA Sep 21, 2026 |
| energy star partner | Lennox Industries | EPA Sep 21, 2026 |
| heating section type | All Other | EPA Sep 21, 2026 |
| refrigerant with gwp | R-454B (GWP:470 | Lower GWP) | EPA Sep 21, 2026 |
| cooling capacity kbtu h | 150 | EPA Sep 21, 2026 |
| date available on market | 2024-12-13T00:00:00.000 | EPA Sep 21, 2026 |
| energy star model identifier | ES_1082495_LGM156U5M**Y,G,J_01032025003349_26216613065 | EPA Sep 21, 2026 |
| split system or single package | Packaged | EPA Sep 21, 2026 |
| meets peak cooling requirements | Yes | EPA Sep 21, 2026 |