the 325-11L is designed specifically for horizontal pipe runs and must be mounted in an upright position to ensure the lever-acting mechanism functions correctly

Does this valve include the sensing bulb and mounting hardware

The mode change is triggered by supply air pressure

Smith 100189392 Valve is a 24v Gas Valve Kit engineered for natural gas and liquid propane (LP) applications in high-efficiency boilers and water heaters

Technicians should clean the casting grooves thoroughly before applying the rope adhesive

York S1-028-16446-000 Pulley 319847-401 the 325-11L is designed specificallyThe York S1 028 16446 000 Pulley is a precision engineered 8. 25" fixed pitch drive pulley designed for heavy duty HVAC blower and motor assemblies. Featuring a 1" bore diameter, this single groove component is machined for exact alignment, reducing vibration and premature belt wear in high static pressure environments. As an OEM York replacement part, it ensures compatibility with specific air handlers and rooftop units where maintaining precise RPM