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The fail direction (Clockwise or Counter-Clockwise) is determined by the orientation of the actuator on the shaft
recent technical data confirms the SC12CLX2 platform is suitable for R452A and R507 applications when using compatible POE oil
If mounted sideways
The unit is built for a 20-22 psig normal main air pressure
Tjernlund Products DC4 Draft Control Els PW 17895 The fail direction (Clockwise orThe Tjernlund DC4 Draft Control is an essential component for technicians managing combustion efficiency in residential and commercial heating systems. This 4 inch single acting draft control is precision engineered to maintain a consistent neutral draft within chimneys and vents, effectively counteracting fluctuations caused by changing barometric pressure, stack temperatures, and wind velocity. Fabricated from heavy duty corrosion resistant steel,