Lochinvar & A.O. Smith 100111990 Gas Valve 319852-301 040") in the manufacturer's charging

040") in the manufacturer's charging chart or the unit's rating plate

This KMC pneumatic actuator is a reliable solution for maintaining consistent system pressure and response times in legacy and modern pneumatic control loops

This specific model is typically 1/15 HP and requires a 4 MFD/370VAC capacitor

Using this in a Natural Gas unit will result in improper combustion due to the orifice sizing

Lochinvar & A.O. Smith 100111990 Gas Valve 319852-301 040") in the manufacturer's chargingAs a seasoned technician, you know that a call for a Lochinvar Knight boiler gas valve replacement usually means a high stakes repair where precision is non negotiable. The Lochinvar & A. O. Smith 100111990 Gas Valve is an OEM spec modulating gas valve engineered for precise air to fuel ratios in high efficiency hydronic systems. This component is a critical HVAC replacement part designed for specific series of the Lochinvar Knight and A. O. Smith BTR