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The Daikin-McQuay 330423901 Fan Blade is a critical OEM replacement part engineered for high-capacity commercial HVAC systems
Safety Logic: The SPST configuration ensures the burner cannot fire if flue gas venting is obstructed
Direct Compatibility: Exact replacement for Johnson Controls A-4000 series oil-removing filter housings
Always verify your control voltage with a multimeter before installation
debris in the core tube
Schneider Electric (Barber Colman) MA40-7170 Actuator Els PW 17895 The Daikin-McQuay 330423901 Fan BladeThe Schneider Electric (Barber Colman) MA40 7170 Actuator is a high torque DuraDrive solution engineered for the rigorous fail safe requirements of modern HVAC systems. This spring return actuator provides 150 lb in of torque, ensuring positive close off in air tight damper applications and valve control. Operating on 120V power supply, the unit utilizes a two position control signal (On Off) and features a mechanical spring return that automatically