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Whether you are performing a scheduled Hydrotherm system tune-up or addressing an emergency "no heat" call
This wall mounting unit features a negative temperature coefficient (NTC) element
Unlike older factory models where transformers were wired directly to the potentiometer
5" water column output for efficient furnace operation and proper flame rectification
ZoneFirst RDP-8 Damper 320788-703 Whether you are performing aThe ZoneFirst RDP 8 is a professional grade 8 inch round zone damper designed for seamless integration into high performance residential and light commercial HVAC zoning systems. Engineered with a heavy duty 24 gauge galvanized steel shell, this single blade damper provides reliable airflow control for duct systems rated up to 2. 0 W. C. equipment. It features the advanced MP12M modular motor, a high torque 12Vdc actuator that operates on a power open