Day & Night Heat Pump Manuals
Select your Day & Night 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.
Day & Night heat pumps by model number
| Model | Description | Certified |
|---|---|---|
| 38MURAQ18AB338M Series | 1.5-ton split-system heat pump | June 2026 |
| 38MURAQ24AA338M Series | 2-ton split-system heat pump | June 2026 |
| 38MURAQ24AB338M Series | 2-ton split-system heat pump | June 2026 |
| 38MURAQ30AB338M Series | 2.5-ton split-system heat pump | June 2026 |
| 38MURAQ36AB338M Series | 3-ton split-system heat pump | June 2026 |
| 38MURAQ48AB338M Series | 4-ton split-system heat pump | June 2026 |
| 38MURAQ60AB338M Series | 4.5-ton split-system heat pump | June 2026 |
| B5H0V24*K*AAAConstantComfort 20 VS HP | 2-ton split-system heat pump | September 2026 |
| B5H0V36*K*AAAConstantComfort 20 VS HP | 3-ton split-system heat pump | September 2026 |
| B5H0V48*K*AAAConstantComfort 20 VS HP | 4-ton split-system heat pump | September 2026 |
| B5H0V60*K*AAAConstantComfort 20 VS HP | 4.5-ton split-system heat pump | September 2026 |
| B5H3V24*K*AAAConstantComfort 23 VS HP | 2-ton split-system heat pump | May 2026 |
| B5H3V36*K*AAAConstantComfort 23 VS HP | 3-ton split-system heat pump | May 2026 |
| B5H3V48*K*AAAConstantComfort 23 VS HP | 4-ton split-system heat pump | June 2026 |
| B5H3V60*K*AAAConstantComfort 23 VS HP | 4.5-ton split-system heat pump | June 2026 |
| B5H6S18*K*AAAMAINLINE 16 SEER2 HP | 1.5-ton split-system heat pump | April 2026 |
| B5H6S19*K*AAAMAINLINE 16 SEER2 HP | 1.5-ton split-system heat pump | April 2026 |
| B5H6S24*K*AAAMAINLINE 16 SEER2 HP | 2-ton split-system heat pump | April 2026 |
| B5H6S30*K*AAAMAINLINE 16 SEER2 HP | 2.5-ton split-system heat pump | April 2026 |
| B5H6S31*K*AAAMAINLINE 16 SEER2 HP | 2.5-ton split-system heat pump | April 2026 |
| B5H6S36*K*AAAMAINLINE 16 SEER2 HP | 3-ton split-system heat pump | April 2026 |
| B5H6S42*K*AAAMAINLINE 16 SEER2 HP | 3.5-ton split-system heat pump | April 2026 |
| B5H6S48*K*AAAMAINLINE 16 SEER2 HP | 4-ton split-system heat pump | April 2026 |
| B5H6S60*K*AAAMAINLINE 16 SEER2 HP | 5-ton split-system heat pump | April 2026 |
| C4H5S30*K*AAAMAINLINE 15 SEER2 HP | 2.5-ton split-system heat pump | February 2025 |
| C4H5S36*K*AAAMAINLINE 15 SEER2 HP | 3-ton split-system heat pump | January 2025 |
| C5H0V24*K*AAAConstantComfort 20 VS HP | 2-ton split-system heat pump | April 2026 |
| C5H0V36*K*AAAConstantComfort 20 VS HP | 3-ton split-system heat pump | February 2025 |
| C5H0V48*K*AAAConstantComfort 20 VS HP | 4-ton split-system heat pump | April 2026 |
| C5H0V60*K*AAAConstantComfort 20 VS HP | 4.5-ton split-system heat pump | April 2026 |
| C5H3V36*K*AAAConstantComfort 23 VS HP | 3-ton split-system heat pump | July 2026 |
| C5H3V48*K*AAAConstantComfort 23 VS HP | 4-ton split-system heat pump | July 2026 |
| C5H3V60*K*AAAConstantComfort 23 VS HP | 4.5-ton split-system heat pump | July 2026 |
| C5H6S18*K*AAAMAINLINE 16 SEER2 HP | 1.5-ton split-system heat pump | July 2026 |
| C5H6S19*K*AAAMAINLINE 16 SEER2 HP | 1.5-ton split-system heat pump | July 2026 |
| C5H6S24*K*AAAMAINLINE 16 SEER2 HP | 2-ton split-system heat pump | July 2026 |
| C5H6S30*K*AAAMAINLINE 16 SEER2 HP | 2.5-ton split-system heat pump | July 2026 |
| C5H6S31*K*AAAMAINLINE 16 SEER2 HP | 2.5-ton split-system heat pump | July 2026 |
| C5H6S36*K*AAAMAINLINE 16 SEER2 HP | 3-ton split-system heat pump | July 2026 |
| C5H6S42*K*AAAMAINLINE 16 SEER2 HP | 3.5-ton split-system heat pump | June 2026 |
| C5H6S48*K*AAAMAINLINE 16 SEER2 HP | 4-ton split-system heat pump | June 2026 |
| C5H6S60*K*AAAMAINLINE 16 SEER2 HP | 5-ton split-system heat pump | July 2026 |
| C5H8T24*K*AAAMainline 18 SEER2 HP | 2-ton split-system heat pump | July 2026 |
| C5H8T36*K*AAAMainline 18 SEER2 HP | 3-ton split-system heat pump | September 2026 |
| C5H8T48*K*AAAMainline 18 SEER2 HP | 4-ton split-system heat pump | September 2026 |
| C5H8T60*K*AAAMainline 18 SEER2 HP | 4.5-ton split-system heat pump | September 2026 |
| CVH837GKA2*+TSTATCONSTANTCOMFORT DELUXE 18 VS HP 2-STAGE | 2.5-ton split-system heat pump | May 2025 |
| D5CERAH09AAJD5F Series | 9,000 Btu/h ductless mini-split heat pump | May 2026 |