Heat pump model numbers starting OF
9 certified units whose model number starts OF, out of every unit in the A to Z. Updated Oct 17, 2026.
The units
One row per certified model number. All 9 in this group are listed; nothing is held back for a second page.
| Model number | Type | Size class | Brands | Certified pairings |
|---|---|---|---|---|
| OFLX1-H24A-O | central | 24,000 Btu (2-ton) | 1 | 1 |
| OFLX1-H36A-O | central | 24,000 Btu (2-ton) | 1 | 6 |
| OFLX1-H48A-O | central | 48,000 Btu (4-ton) | 1 | 1 |
| OFLX1-H60A-O | central | 48,000 Btu (4-ton) | 1 | 6 |
| OFRM2X1-H18A-O | mini-split | 18,000 Btu (1.5-ton) | 1 | 3 |
| OFRM3X1-H24A-O | mini-split | 24,000 Btu (2-ton) | 1 | 3 |
| OFRM4X1-H30A-O | mini-split | 30,000 Btu (2.5-ton) | 1 | 3 |
| OFRM4X1-H36A-O | mini-split | 36,000 Btu (3-ton) | 1 | 3 |
| OFRM5X1-H42A-O | mini-split | 42,000 Btu (3.5-ton) | 1 | 3 |
Other groups
Every model number group, A to Z
Find a model by its number, its indoor unit, or its AHRI number