EWC Controls PRD Regulating Damper Els PW 17895 technicians should monitor differential pressure

technicians should monitor differential pressure and perform replacements if the drop exceeds 10 psi to prevent system bypass or element collapse

it monitors the supply air and heat exchanger temperatures to prevent hazardous overheating

The 90-T40F3 features color-coded primary leads for efficient field wiring and an open construction design that promotes thermal dissipation

Built with a universal multi-mount configuration

Always match the color code and the part number 196388 to ensure the safety circuit operates within the burner's original design parameters

EWC Controls PRD Regulating Damper Els PW 17895 technicians should monitor differential pressureEWC 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.