Lennox 41K37 Gas Valve Refrigerant the filter mat should be

the filter mat should be replaced when the differential pressure drop across the filter exceeds 1 kPa (10 mbar) or during annual inspections of the gas train

The unit is typically powered by a 24 VAC source via a Y350R power module or a standard Class 2 transformer

Microprocessor Control: Manages precise timings for pre-purge

and springs—required to restore factory-spec sealing integrity and prevent solenoid valve internal leakage

The Cleveland Controls NS2-0172-00 Pressure Switch is the manufacturer-designated direct replacement for RSS-495-172

Lennox 41K37 Gas Valve Refrigerant the filter mat should beThe Lennox 41K37 Gas Valve, manufactured by Honeywell as model VR8204H8019, is a high performance intermittent pilot gas valve engineered for single stage heating systems. This 1 2" IP gas valve features a slow opening characteristic to facilitate smooth ignition across various nitrogen oxide (NOx) and standard burner configurations. Designed as a direct OEM replacement for 41K3701, this unit manages a maximum capacity of 150,000 BTU hr at a 1"