York S1-ADDWIRE Kit 318973-401 If pressure is adequate but

If pressure is adequate but the circuit stays open

This 120V HVAC motor control is a standard replacement in Enviro-tec VAV terminals and fan coil units

this high-performance blower assembly resolves those issues by effectively purging combustion gases and establishing the necessary negative pressure to close the pressure switch vacuum circuit

The counterclockwise rotation (lead end) and 5

York S1-ADDWIRE Kit 318973-401 If pressure is adequate butThe York S1 ADDWIRE Add A Wire Kit is an essential field proven solution for retrofitting modern thermostats in applications where pulling new thermostat cable is impractical. Designed for HVAC 24V control systems, this kit allows you to effectively add an additional conductor to an existing 4 wire cable, facilitating the connection of a C wire (common wire) required for Wi Fi enabled and smart thermostats. By utilizing a diode "Y" splitter at the