This orifice assembly is the metering component designed to be inserted into the valve body

Ensures reliable cold-starts by maintaining fluid oil temperature

ensuring efficient fluid control in boiler systems and heat exchangers

This 120V module supports both natural gas and propane gas boiler applications

ensuring reliable operation under high static pressures

Reznor 197029 Pressure Switch 322055-301 This orifice assembly is theThe Reznor 197029 Pressure Switch is a critical OEM replacement part engineered for combustion airflow safety in Reznor UDAP and UDAS series gas fired unit heaters. This differential sensing switch features a 0. 6" water column (WC) set point, indicated by its distinct blue label. Designed specifically for high altitude applications and precision draft monitoring, it ensures the inducer motor establishes a consistent vacuum before allowing the