Lennox 68W77 Conversion Kit 321702-401 The PD515142 uses a 48-frame

The PD515142 uses a 48-frame configuration with an approximately 5-5/8-inch motor diameter

The York S1-324-36074-272 ECM Motor is a high-efficiency 3/4 HP Programmed ECM Motor designed for precise airflow control in residential and light commercial HVAC systems

The standard iO-WW4 kit includes (4) WW-R-240 relays for 208/240V systems

Industrial Durability: The Cast Iron body and brass internal trim withstand the rigors of commercial heating and cooling cycles

ensuring maximum capture of airborne contaminants

Lennox 68W77 Conversion Kit 321702-401 The PD515142 uses a 48-frameThe Lennox 68W77 natural gas to LP conversion kit is a critical OEM component designed for field converting gas fired heating systems to liquid propane operation. As a Lennox genuine replacement part, this kit ensures that manifold pressure adjustments and orifice sizing meet exact factory specifications for safe, efficient combustion. The 68W77 is engineered for high performance HVAC fuel conversion, maintaining the appliance's thermal efficiency