Heat pump model numbers starting WF
5 certified units whose model number starts WF, out of every unit in the A to Z. Updated Oct 17, 2026.
The units
One row per certified model number. All 5 in this group are listed; nothing is held back for a second page.
| Model number | Type | Size class | Brands | Certified pairings |
|---|---|---|---|---|
| WFPU17Y243D | central | 24,000 Btu (2-ton) | 1 | 1 |
| WFPU17Y483D | central | 48,000 Btu (4-ton) | 1 | 1 |
| WFPU17Z243C | central | 24,000 Btu (2-ton) | 1 | 4 |
| WFPU18Z363C | central | 30,000 Btu (2.5-ton) | 1 | 4 |
| WFPU18Z483C | central | 42,000 Btu (3.5-ton) | 1 | 2 |
Other groups
Every model number group, A to Z
Find a model by its number, its indoor unit, or its AHRI number