Heat pump model numbers starting 4M
4 certified units whose model number starts 4M, out of every unit in the A to Z. Updated Oct 17, 2026.
The units
One row per certified model number. All 4 in this group are listed; nothing is held back for a second page.
| Model number | Type | Size class | Brands | Certified pairings |
|---|---|---|---|---|
| 4MXM36AVJU | mini-split | 36,000 Btu (3-ton) | 1 | 1 |
| 4MXM36AVJU8 | mini-split | 36,000 Btu (3-ton) | 1 | 1 |
| 4MXT36AVJU | mini-split | 36,000 Btu (3-ton) | 1 | 3 |
| 4MXTH36AVJU | mini-split | 36,000 Btu (3-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