While primarily engineered for thermal loads like HID and incandescent

making it a reliable choice for commercial HVAC mixing and diverting applications

effectively managing heat dissipation in indoor environments where moisture is not a direct threat to the windings

If the valve fails to return to its normal position upon loss of air pressure or if the pneumatic signal no longer correlates to the expected stem position

EWC Controls MRK Replacement Motor Kit 320074-702 While primarily engineered for thermalThe EWC Controls MRK Replacement Motor Kit is the industry standard solution for restoring functionality to malfunctioning Ultra Zone dampers. As a direct replacement for EWC MA ND4 actuators, this kit allows technicians to swap out the motor without replacing the entire damper assembly, significantly reducing labor time and material costs. Operating on 24 VAC at a 1. 5 VA rating, the MRK motor provides the precise torque required for consistent open