ZoneFirst SPRD-20X10 Damper Els PW 17895 verify the specific wiring diagram

verify the specific wiring diagram for your burner model before installation

The Packard PM43440 is a versatile 40VA Class II control transformer engineered for reliable performance in demanding HVACR applications

20J85 is identical to 20J8501

this component features a 120V coil and class F insulation

How should the sensor be mounted to ensure maximum accuracy

ZoneFirst SPRD-20X10 Damper Els PW 17895 verify the specific wiring diagramThe ZoneFirst SPRD 20X10 is a heavy duty barometric static pressure regulating damper designed for precision airflow management in multi zone HVAC systems. Built with 22 gauge galvanized steel, this 20 inch wide by 10 inch high rectangular bypass damper is engineered to handle airflow ratings up to 2000 CFM. As zone dampers close, duct static pressure naturally increases; the SPRD 20X10 automatically compensates by opening its single blade mechanism