Lennox Heat Pump Manuals — page 2
Select your Lennox 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.
Lennox heat pumps by model number
| Model | Description | Certified |
|---|---|---|
| ML14KP1-018-230AMERIT ML14KP1 Series | 1.5-ton split-system heat pump | October 2025 |
| ML14KP1-024-230AMERIT ML14KP1 Series | 2-ton split-system heat pump | October 2025 |
| ML14KP1-030-230AMERIT ML14KP1 Series | 2.5-ton split-system heat pump | October 2025 |
| ML14KP1-036-230AMERIT ML14KP1 Series | 3-ton split-system heat pump | May 2026 |
| ML14KP1-042-230AMERIT ML14KP1 Series | 3.5-ton split-system heat pump | August 2026 |
| ML14KP1-048-230AMERIT ML14KP1 Series | 4-ton split-system heat pump | October 2025 |
| ML15KSPV-018-230AML15KSPV SERIES | 1.5-ton split-system heat pump | June 2026 |
| ML15KSPV-024-230AML15KSPV SERIES | 2-ton split-system heat pump | July 2026 |
| ML15KSPV-030-230AML15KSPV SERIES | 2.5-ton split-system heat pump | July 2026 |
| ML16KP2-024-230AMerit ML16KP2 SERIES | 2-ton split-system heat pump | June 2026 |
| ML16KP2-036-230AMerit ML16KP2 SERIES | 3-ton split-system heat pump | June 2026 |
| ML16KP2-048-230AMerit ML16KP2 SERIES | 4-ton split-system heat pump | June 2026 |
| ML16KP2-060-230AMerit ML16KP2 SERIES | 5-ton split-system heat pump | June 2026 |
| ML17XP1-018-230AMerit ML17XP1 Series | 1.5-ton split-system heat pump | October 2025 |
| ML17XP1-024-230AMERIT ML17XP1 Series | 2-ton split-system heat pump | October 2025 |
| ML17XP1-030-230AMERIT ML17XP1 Series | 2.5-ton split-system heat pump | October 2025 |
| ML17XP1-036-230AMERIT ML17XP1 Series | 3-ton split-system heat pump | October 2025 |
| ML17XP1-042-230AMERIT ML17XP1 Series | 3.5-ton split-system heat pump | October 2025 |
| ML17XP1-048-230AMERIT ML17XP1 Series | 4-ton split-system heat pump | October 2025 |
| MLB009S4S-1PM series | 9,000 Btu/h ductless mini-split heat pump | June 2026 |
| MLB012S4S-1PM series | 12,000 Btu/h ductless mini-split heat pump | June 2026 |
| MLB018S4M-1PM series | 19,000 Btu/h ductless mini-split heat pump | June 2026 |
| MLB018S4S-1PM series | 17,000 Btu/h ductless mini-split heat pump | June 2026 |
| MLB024S4S-1PM series | 24,000 Btu/h ductless mini-split heat pump | June 2026 |
| MLB030S4M-1PM series | 28,000 Btu/h ductless mini-split heat pump | June 2026 |
| MLB036S4M-1PM series | 36,000 Btu/h ductless mini-split heat pump | June 2026 |
| MLB036S4S-1PM series | 36,000 Btu/h ductless mini-split heat pump | June 2026 |
| MLB036S4S-2PM series | 36,000 Btu/h ductless mini-split heat pump | May 2026 |
| MLB048S4M-2PM series | 48,000 Btu/h ductless mini-split heat pump | June 2026 |
| MLB048S4S-1PM series | 48,000 Btu/h ductless mini-split heat pump | February 2025 |
| MLB048S4S-2PM series | 48,000 Btu/h ductless mini-split heat pump | June 2026 |
| MMLD009S6S-1P1-Way Cassette (WindFree™) Premium (CAC) | 9,000 Btu/h ductless mini-split heat pump | May 2026 |
| MMLD012S6S-1PMini 4-Way Cassette (WindFree™) Premium (CAC) | 12,000 Btu/h ductless mini-split heat pump | May 2026 |
| MMLD018S6S-1PMMLD Mini-Split | 18,000 Btu/h ductless mini-split heat pump | April 2026 |
| MMLD020S6M-1PMMLD Multi-Zone | 21,000 Btu/h ductless mini-split heat pump | April 2026 |
| MMLD024S6M-1PMMLD Multi-Zone | 25,000 Btu/h ductless mini-split heat pump | March 2025 |
| MMLD024S6S-1PMMLD Mini-Split | 24,000 Btu/h ductless mini-split heat pump | April 2026 |
| MMLD030S6M-1PMMLD Multi-Zone | 28,400 Btu/h ductless mini-split heat pump | April 2026 |
| MMLD030S6S-1PMMLD Mini-Split | 30,000 Btu/h ductless mini-split heat pump | April 2026 |
| MMLD036S6M-1PMMLD Multi-Zone | 34,000 Btu/h ductless mini-split heat pump | April 2026 |
| MMLD036S6S-1P4-Way Cassette (WindFree™) Maxheat | 36,000 Btu/h ductless mini-split heat pump | April 2026 |
| MMLD048S6S-1P4-Way Cassette (WindFree™) Maxheat | 48,000 Btu/h ductless mini-split heat pump | April 2026 |
| MMPD018S6S-1PMMPD Mini-Split | 18,000 Btu/h ductless mini-split heat pump | April 2026 |
| MMPD020S6M-1PMMPD Multi-Zone | 18,000 Btu/h ductless mini-split heat pump | April 2026 |
| MMPD024S6M-1PMMPD Multi-Zone | 22,000 Btu/h ductless mini-split heat pump | April 2026 |
| MMPD024S6S-1PMMPD Mini-Split | 24,000 Btu/h ductless mini-split heat pump | April 2026 |
| MMPD030S6S-1PMMPD Mini-Split | 30,000 Btu/h ductless mini-split heat pump | April 2026 |
| MMPD036S6M-1PMMPD Multi-Zone | 32,000 Btu/h ductless mini-split heat pump | April 2026 |