the Robertshaw 110-504 cannot be reset and must be replaced to restore pilot and burner function

The coil is spec'd at 420 Ohms DC resistance with a low 42 mA draw

This natural gas control valve is designed to manage precise manifold pressure

Built with a 48Y frame and featuring a 2-inch shaft length

The four 5/16-18 socket head bolts provided in the kit should be torqued to 15-21 ft/lbs to ensure a proper seal against the bearing head without damaging the gasket interface

Lennox 42W35 TXV 322055-301 the Robertshaw 110-504 cannot beThe Lennox 42W35 is a professional grade R 410A thermostatic expansion valve (TXV) engineered for high precision refrigerant metering in residential and light commercial cooling systems. This OEM Lennox 100679 22 replacement features a 30 inch capillary tube designed to maintain consistent superheat across varying thermal loads, effectively preventing evaporator flooding and protecting the compressor from liquid slugging. With connection