My existing relay has fewer pins

this Performer compressor is commonly applied in systems utilizing R-410A and other approved high-pressure refrigerants

This 4 inch single acting draft control is precision-engineered to maintain a consistent neutral draft within chimneys and vents

moisture saturation from tank leaks

Resideo HZ432 Zone Panel 321894-706 My existing relay has fewerThe Resideo HZ432 TrueZONE panel is a field proven forced air zoning controller designed for demanding residential and light commercial applications. Capable of managing up to four zones out of the box, this 4 zone controller supports 3H 2C stages for conventional systems and up to 4H 2C for heat pump applications, including dual fuel and electric strip heat configurations. The intuitive digital display simplifies automated commissioning and advanced