For applications requiring different timing to prevent pump cavitation or specific surge patterns

Utilizing this replacement HVAC blower wheel ensures that the combustion blower assembly operates without the excessive vibration or resonance that often accompanies generic aftermarket wheels

providing the precise low-voltage power necessary for thermostats

ensuring a secure fit and reliable fuel flow regulation

It features floating or ON/OFF control logic and includes an integrated 135 ohm potentiometer for feedback or position sensing

White-Rodgers 1311-103 Zone Valve Els PW 17895 For applications requiring different timingThe White Rodgers 1311 103 is a professional grade, 1" sweat zone valve engineered for precision flow control in hydronic heating systems. Designed for 24v 3 wire configurations, this normally closed valve features a high flow capacity (37 Cv), ensuring minimal resistance in 1 inch ID tubing applications. A critical feature for any veteran installer is the built in auxiliary switch (end switch), which simplifies wiring by providing direct signaling to