Century Geothermal Heat Pump Manuals
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.
Century geothermal heat pumps by model number
| Model | Description | Certified |
|---|---|---|
| HEH/V024CTranquility 22 Digital | open-loop water-to-air geothermal heat pump | February 2025 |
| HEH/V030CTranquility 22 Digital | open-loop water-to-air geothermal heat pump | February 2025 |
| HEH/V036CTranquility 22 Digital | open-loop water-to-air geothermal heat pump | February 2025 |
| HEH/V042CTranquility 22 Digital | open-loop water-to-air geothermal heat pump | February 2025 |
| HEH/V048CTranquility 22 Digital | open-loop water-to-air geothermal heat pump | February 2025 |
| HEH/V060CTranquility 22 Digital | open-loop water-to-air geothermal heat pump | February 2025 |
| HEV/H024DTranquility 22 Digital | open-loop water-to-air geothermal heat pump | December 2024 |
| HEV/H030DTranquility 22 Digital | open-loop water-to-air geothermal heat pump | December 2024 |
| HEV/H036DTranquility 22 Digital | open-loop water-to-air geothermal heat pump | February 2025 |
| HEV/H042DTranquility 22 Digital | open-loop water-to-air geothermal heat pump | December 2024 |
| HEV/H048DTranquility 22 Digital | open-loop water-to-air geothermal heat pump | December 2024 |
| HEV/H060DTranquility 22 Digital | open-loop water-to-air geothermal heat pump | December 2024 |
| HEW036Tranquility Water to Water Series | closed-loop water-to-water geothermal heat pump | December 2024 |
| HEW060TRANQUILITY WATER TO WATER SERIES | closed-loop water-to-water geothermal heat pump | December 2024 |
| HEW120TRANQUILITY WATER TO WATER SERIES | closed-loop water-to-water geothermal heat pump | December 2024 |
| HNW036TRANQUILITY WATER TO WATER SERIES | open-loop water-to-water geothermal heat pump | December 2024 |
| HNW060TRANQUILITY WATER TO WATER SERIES | open-loop water-to-water geothermal heat pump | December 2024 |
| HNW120TRANQUILITY WATER TO WATER SERIES | open-loop water-to-water geothermal heat pump | December 2024 |
| HZS024BTranquility 27 Split Digital | open-loop water-to-air geothermal heat pump | December 2024 |
| HZS036BTranquility 27 Split Digital | open-loop water-to-air geothermal heat pump | December 2024 |
| HZS048BTranquility 27 Split Digital | open-loop water-to-air geothermal heat pump | December 2024 |
| HZS060BTranquility 27 Split Digital | open-loop water-to-air geothermal heat pump | February 2025 |
| HZV/H/D024BTranquility 30 Digital | open-loop water-to-air geothermal heat pump | December 2024 |
| HZV/H/D036BTranquility 30 Digital | open-loop water-to-air geothermal heat pump | December 2024 |
| HZV/H/D048BTranquility 30 Digital | open-loop water-to-air geothermal heat pump | December 2024 |
| HZV/H/D060BTranquility 30 Digital | open-loop water-to-air geothermal heat pump | December 2024 |
| HZV/H/D070BTranquility 30 Digital | open-loop water-to-air geothermal heat pump | December 2024 |
| ME(L/R/B/P/D/N/T/K)024ATranquility 30 Premier Two-Stage | open-loop water-to-air geothermal heat pump | April 2026 |
| ME(L/R/B/P/D/N/T/K)036ATranquility 30 Premier Two-Stage | open-loop water-to-air geothermal heat pump | April 2026 |
| ME(L/R/B/P/D/N/T/K)048ATranquility 30 Premier Two-Stage | open-loop water-to-air geothermal heat pump | May 2026 |
| ME(L/R/B/P/D/N/T/K)060ATranquility 30 Premier Two-Stage | open-loop water-to-air geothermal heat pump | April 2026 |
| ME(L/R/B/P/D/N/T/K)072ATranquility 30 Premier Two-Stage | open-loop water-to-air geothermal heat pump | February 2025 |
| MJN024ATRANQUILITY 27 DIGITAL SPLIT | open-loop water-to-air geothermal heat pump | October 2025 |
| MJN036ATRANQUILITY 27 DIGITAL SPLIT | open-loop water-to-air geothermal heat pump | October 2025 |
| MJN048ATRANQUILITY 27 DIGITAL SPLIT | open-loop water-to-air geothermal heat pump | October 2025 |
| MJN060ATRANQUILITY 27 DIGITAL SPLIT | open-loop water-to-air geothermal heat pump | October 2025 |
| MWM036ATranquility Water to Water Series | open-loop water-to-water geothermal heat pump | October 2025 |
| MWM060ATranquility Water to Water Series | open-loop water-to-water geothermal heat pump | October 2025 |
| MWM120ATranquility Water to Water Series | open-loop water-to-water geothermal heat pump | October 2025 |
| MZ(L/R/B/P/T/K)024ATranquility 24 Versatile Two-Stage | open-loop water-to-air geothermal heat pump | February 2025 |
| MZ(L/R/B/P/T/K)030ATranquility 24 Versatile Two-Stage | open-loop water-to-air geothermal heat pump | February 2025 |
| MZ(L/R/B/P/T/K)036ATranquility 24 Versatile Two-Stage | open-loop water-to-air geothermal heat pump | February 2025 |
| MZ(L/R/B/P/T/K)042ATranquility 24 Versatile Two-Stage | open-loop water-to-air geothermal heat pump | February 2025 |
| MZ(L/R/B/P/T/K)048ATranquility 24 Versatile Two-Stage | open-loop water-to-air geothermal heat pump | February 2025 |
| MZ(L/R/B/P/T/K)060ATranquility 24 Versatile Two-Stage | open-loop water-to-air geothermal heat pump | February 2025 |