New Technical Documents
Here you’ll find the latest information on Lennox® products, covering everything from engineering to installation to service.
Engineering Handbook
Installation Instructions
- Air Conditioners
- Air Handlers (Fan Coil Units)
- Gas Units (Furnaces)
- Gas Units - Kits and Accessories
- Indoor Coils
- Packaged Gas/Elec. and Packaged Elec./Elec.
- KC/KG 024, 030, 036, 048, 060, 072, 090 -- A Box (2, 2.5, 3, 4, 5, 6, & 7-1/2 tons)
- KGA/KCA092-150 B Box Installation Instruction
- LGH/LCH036, 048, 060, 072 -- A Box (3, 4, 5 & 6 tons)
- LGH/LCH092-150 B Box Installation Instruction
Service Manuals
Application and Design Guidelines
Guide Specifications