Heat pump model numbers starting 4H
8 certified units whose model number starts 4H, out of every unit in the A to Z. Updated Oct 17, 2026.
The units
One row per certified model number. All 8 in this group are listed; nothing is held back for a second page.
| Model number | Type | Size class | Brands | Certified pairings |
|---|---|---|---|---|
| 4HP17L18P-**A | central | 18,000 Btu (1.5-ton) | 6 | 1,373 |
| 4HP17L24P-**A | central | 24,000 Btu (2-ton) | 6 | 1,372 |
| 4HP17L30P-**A | central | 30,000 Btu (2.5-ton) | 6 | 1,329 |
| 4HP17L36P-**A | central | 36,000 Btu (3-ton) | 6 | 1,578 |
| 4HP17L42P-**A | central | 42,000 Btu (3.5-ton) | 6 | 349 |
| 4HP17L48P-**A | central | 48,000 Btu (4-ton) | 6 | 803 |
| 4HP18V36P | central | 24,000 Btu (2-ton) | 5 | 770 |
| 4HP18V60P | central | 48,000 Btu (4-ton) | 4 | 80 |
Other groups
Every model number group, A to Z
Find a model by its number, its indoor unit, or its AHRI number