the metering device (piston or TXV) may need to be matched to your specific outdoor condenser requirements for proper subcooling and superheat levels

suitable for large residential and commercial boilers

this ECM motor is an ideal high-efficiency replacement for PSC and shaded pole motors in 120V refrigeration applications without requiring additional control modules

Professional contractors rely on this component for its durable internal diaphragm and corrosion-resistant housing

Fenwal 35-630501-103 Module 320819-301 the metering device (piston orThe Fenwal 35 630501 103 is a 24VAC Intermittent Pilot (IP) ignition control module designed for precise gas valve control in commercial and residential heating systems. Engineering grade microprocessor circuitry provides reliable sequence timing, featuring a 15 second pre purge to clear the combustion chamber and a 30 second trial for ignition (TFI). This direct spark ignition component utilizes a single rod sensing (local sense) configuration to