Century Heat Pump Manuals — page 2
Select your Century model number below for installation steps, settings, maintenance schedules, troubleshooting and the full specification sheet. Your model number is printed on the rating plate on the side of the outdoor unit.
Century heat pumps by model number
| Model | Description | Certified |
|---|---|---|
| HSA1418S1-**AHSA14 Series | 1.5-ton split-system heat pump | October 2025 |
| HSA1424S1-**AHSA14 Series | 2-ton split-system heat pump | October 2025 |
| HSA1430S1-**AHSA14 Series | 2.5-ton split-system heat pump | October 2025 |
| HSA1436S1-**AHSA14 Series | 3-ton split-system heat pump | July 2025 |
| HSA1442S1-**AHSA14 Series | 3.5-ton split-system heat pump | October 2025 |
| HSA1448S1-**AHSA14 Series | 4-ton split-system heat pump | October 2025 |
| HSA1936V1-**AHSA19 Series | 2-ton split-system heat pump | July 2025 |
| HSA1960V1-**AHSA19 Series | 4-ton split-system heat pump | October 2025 |