the 622171 is the official 622171R replacement motor and shares identical technical specifications

60 to 90 degree F Setpoint Range

ensuring continuous operation by cycling the electrical control circuit once gas pressures return to safe operating parameters

The Reznor 113216 Blocked Vent Switch is a critical safety component designed for Reznor gas-fired unit heaters

Schneider Electric (Barber Colman) M573-3111 Actuator Els PW 17895 the 622171 is the officialThe Schneider Electric M573 3111 is a robust piston damper actuator designed for proportional control of dampers in precision HVAC systems. Engineered for reliability, this pneumatic actuator features a 3 inch stroke and a 5 to 10 psig spring range, ensuring accurate positioning under varying load conditions. It operates on a 20 psig nominal supply air pressure and utilizes a spring return mechanism that retracts the shaft upon loss of air pressure