reducing mechanical stress on the combustion chamber and improving overall furnace reliability

It is designed to stay in the circuit continuously while the motor is energized to maintain the correct electrical phase shift

specifically designed for vertical air handler cabinets

facilitating a straightforward installation for contractors servicing residential or commercial York air handlers and rooftop units

Schneider Electric (Barber Colman) MK-6821 Proportional Control Els PW 17895 reducing mechanical stress on theThe Schneider Electric (Barber Colman) MK 6821 Proportional Control is a rugged 50 square inch pneumatic valve actuator engineered for precise linear movement in commercial HVAC systems. This spring return actuator operates on a 8 13 PSI pneumatic signal range, providing reliable fail safe positioning during pressure loss. Encased in a durable Nema 1 enclosure, it features a 1 8" NPT air connection and a 1" nominal stroke, making it a standard choice