EWC Controls PRD Regulating Damper Els PW 17895 this 24V heat sequencer relay

this 24V heat sequencer relay utilizes a temperature-responsive bi-metallic mechanism to manage power flow to heating elements

If installed in a restricted area

normally closed circuit that breaks cleanly upon activation

and mission-critical fasteners for a full assembly rebuild

EWC Controls PRD Regulating Damper Els PW 17895 this 24V heat sequencer relayEWC Controls PRD 12" Pressure Regulating Damper Made in USA. Model PRD RD pressure regulating damper is a single blade, round variation of a barometric relief damper. This is the simplest, most economical way of bypassing excess static pressure in multi zone applications. Resistance is controlled by offsetting the arm and adjusting the weights. The arm can be inserted into either side of the damper for added versatility.