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it includes the regulator spring compatible with the Honeywell or White-Rodgers valves standard in these Reznor heating units
Lead-Free Brass Construction: Ensures full compliance with safety codes for potable water and food service applications
meaning the electrical contacts break the circuit when the temperature reaches your set point
this low voltage control relay offers a direct-fit solution that preserves original factory specifications and improves fault recovery timing
Nordyne 632571 Pressure Switch 318172-701 it includes the regulator springThe Nordyne 632571 Pressure Switch is a critical safety and operational component designed for negative pressure monitoring in high efficiency furnace and HVAC applications. This SPST pressure switch is factory calibrated to a set point of 1. 3" WC (water column), ensuring the inducer motor is moving sufficient combustion air through the heat exchanger before ignition occurs. Built with a standard 1 4" barb connection for vacuum hose integration, this