The 48 Frame HVAC Motor features an open-air-over (OAO) design and reliable sleeve bearings

it enables seamless switching between heating and cooling modes

Never bypass a safety limit

maintaining a critical safety delta for 24V control circuits

maintaining the integrity of the furnace’s combustion sequence and preventing nuisance lockouts in cold weather conditions

Lennox 18L12 Conversion Kit 318820-201 The 48 Frame HVAC MotorThe Lennox 18L12 (catalog number 617168 02) is a specialized Natural to LP Propane Gas Conversion Kit engineered specifically for technical professionals working with Lennox LF25 and LS25 series unit heaters. This OEM certified kit is the direct replacement for discontinued part numbers 165295205 and 20L07, ensuring seamless integration with existing manifolds and burner assemblies. It facilitates the safe transition of 125, 150, 175, and 200 capacity