Ameristar Heat Pump Manuals
Select your Ameristar 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.
Ameristar heat pumps by model number
| Model | Description | Certified |
|---|---|---|
| A5HL5024A1A5HL5 | 2-ton split-system heat pump | January 2025 |
| A5HL5024A1000AAA5HL5 | 2-ton split-system heat pump | January 2025 |
| A5HL5036A1A5HL5 | 3-ton split-system heat pump | April 2025 |
| A5HL5036A1000AAA5HL5 | 3-ton split-system heat pump | January 2025 |
| A5HL5048A1A5HL5 | 4-ton split-system heat pump | January 2025 |
| A5HL5048A1000AAA5HL5 | 4-ton split-system heat pump | January 2025 |
| A5HP5018A1A5HP5 | 1.5-ton split-system heat pump | April 2025 |
| A5HP5024A1A5HP5 | 2-ton split-system heat pump | March 2026 |
| A5HP5030A1A5HP5 | 2.5-ton split-system heat pump | April 2025 |
| A5HP5036A1A5HP5 | 3-ton split-system heat pump | April 2025 |
| A5HP5042A1A5HP5 | 3.5-ton split-system heat pump | April 2025 |
| A5HP5048A1A5HP5 | 3.5-ton split-system heat pump | April 2025 |
| A5HP5060A1A5HP5 | 4.5-ton split-system heat pump | April 2026 |
| E4HL5018A1000AE4HL5 | 1.5-ton split-system heat pump | January 2025 |
| E4HL5024A1000AE4HL5 | 2-ton split-system heat pump | April 2026 |
| E4HL5030A1000AE4HL5 | 2.5-ton split-system heat pump | August 2024 |
| E4HL5036A1000AE4HL5 | 2.5-ton split-system heat pump | August 2024 |
| E4HL5060A1000AE4HL5 | 4-ton split-system heat pump | August 2024 |
| M3THS2209A91NACXV | 9,000 Btu/h ductless mini-split heat pump | February 2025 |
| M3THS2212A91NACXV | 12,000 Btu/h ductless mini-split heat pump | February 2025 |
| M4THM1918A12NN-Series | 17,000 Btu/h ductless mini-split heat pump | June 2026 |
| M4THM1924A13NN-Series | 23,200 Btu/h ductless mini-split heat pump | June 2026 |
| M4THM1930A14NN-Series | 28,400 Btu/h ductless mini-split heat pump | June 2026 |
| M4THM1936A14NN-Series | 34,000 Btu/h ductless mini-split heat pump | June 2026 |
| M4THM1942A15NN-Series | 36,000 Btu/h ductless mini-split heat pump | June 2026 |
| M5THM2318A12NA23U Multi | 18,000 Btu/h ductless mini-split heat pump | January 2026 |
| M5THM2327A13NA23U Multi | 27,000 Btu/h ductless mini-split heat pump | January 2026 |
| M5THM2336A14NA23U Multi | 35,000 Btu/h ductless mini-split heat pump | January 2026 |
| M5THM2342A15NA23U Multi | 42,000 Btu/h ductless mini-split heat pump | January 2026 |
| M5THS2309A11NA23U Series | 9,000 Btu/h ductless mini-split heat pump | January 2026 |
| M5THS2309A11NAA23U Series | 9,000 Btu/h ductless mini-split heat pump | September 2025 |
| M5THS2312A11NA23U Series | 12,000 Btu/h ductless mini-split heat pump | January 2026 |
| M5THS2312A11NAA23U Series | 12,000 Btu/h ductless mini-split heat pump | September 2025 |
| M5THS2318A11NA23U Series | 18,000 Btu/h ductless mini-split heat pump | January 2026 |
| M5THS2318A11NAA23U Series | 18,000 Btu/h ductless mini-split heat pump | September 2025 |
| M5THS2324A11NA23U Series | 23,000 Btu/h ductless mini-split heat pump | January 2026 |
| M5THS2324A11NAA23U Series | 23,000 Btu/h ductless mini-split heat pump | October 2025 |