Heat pump model numbers starting CS
16 certified units whose model number starts CS, out of every unit in the A to Z. Updated Oct 17, 2026.
The units
One row per certified model number. All 16 in this group are listed; nothing is held back for a second page.
| Model number | Type | Size class | Brands | Certified pairings |
|---|---|---|---|---|
| CS18HV24A36 | central | 24,000 Btu (2-ton) | 1 | 1 |
| CSBA09TP1AU-W | mini-split | 9,000 Btu | 1 | 1 |
| CSBA09TP2AU-W | mini-split | 9,000 Btu | 1 | 1 |
| CSBA12TP1AU-W | mini-split | 12,000 Btu (1-ton) | 1 | 1 |
| CSBA12TP2AU-W | mini-split | 12,000 Btu (1-ton) | 1 | 1 |
| CSBA18TP2AU-W | mini-split | 18,000 Btu (1.5-ton) | 1 | 1 |
| CSBA24TP2AU-W | mini-split | 24,000 Btu (2-ton) | 1 | 1 |
| CSU09HEI2NAM0T24 | mini-split | 9,000 Btu | 1 | 1 |
| CSU12HEI2NAM0T24 | mini-split | 12,000 Btu (1-ton) | 1 | 1 |
| CSU18HEI2NAM0T24 | mini-split | 18,000 Btu (1.5-ton) | 1 | 1 |
| CSU24HEI2NAK0T24 | mini-split | 24,000 Btu (2-ton) | 1 | 1 |
| CSZ36H424ZMO | mini-split | 36,000 Btu (3-ton) | 1 | 1 |
| CSZ36H525ZMO | mini-split | 36,000 Btu (3-ton) | 1 | 2 |
| CSZ48H424ZMO | mini-split | 48,000 Btu (4-ton) | 1 | 1 |
| CSZ48H525ZMO | mini-split | 48,000 Btu (4-ton) | 1 | 2 |
| CSZ60H525ZMO | mini-split | 54,000 Btu (4.5-ton) | 1 | 1 |
Other groups
Every model number group, A to Z
Find a model by its number, its indoor unit, or its AHRI number