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EWC Controls MA-RSD 2-Position S/R Damper Motor Actuator 24V

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Special Price $104.50 Regular Price $120.18
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SKU
MA-RSD
The EWC Controls MA-RSD Damper Motor Actuator is an essential part of the regulation of airflow in HVAC systems. Powered by 24V, this actuator moves dampers to open or closed positions. If the failure or power loss, the spring return moves the damper to its fail-safe position to achieve safety in the system. Specialized in HVAC equipment including air handlers, VAV boxes, and ventilation systems among others it is effective and reliable when it comes to the control of dampers. Its two-position operation makes it easy to control strategies, and the spring return adds to the safety and proper system operation even with power failures.
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Motors & Capacitors, Motors & Components
Manufacturer:
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Specifications

  • Type: Damper Motor Actuator
  • Number Of Positions: 2
  • Fair-Safe Mode: Spring-Return
  • Voltage: 24V
Manufacturer Name: EWC Controls
Product Number: MA-RSD
OEM Part Number: MA-RSD
Product Description: 24V 2-Pos S/R Damp Act
Weight:1.32lbs/598.74g

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Product Questions (2)
Customer Questions
What maintenance is required for the EWC Controls MA-RSD Damper Motor Actuator?

Inspect wiring connections and verify a stable supply regularly. Keep linkage and damper blades free of dust and debris to ensure smooth movement. Check actuator mounting and calibration periodically. This prevents binding and ensures safe system operation.

What are common issues with the EWC Controls MA-RSD Damper Motor Actuator?

  • Actuator not responding to the signal.
  • Intermittent movement or sticking damper.
  • Gear or linkage misalignment causing incomplete rotation.
  • Electrical connection faults or signal loss.
  • Overheating of actuator during extended operation.
  • Erratic positioning or failure to hold damper position.

Installation Steps

Step 1: Turn off HVAC power at the breaker and check is not present before handling the actuator.

Step 2: Remove existing old damper motor and label wiring connections.

Step 3: Mount the new actuator securely on damper shaft and ensure correct rotation direction.

Step 4: Reconnect wiring and set end stops or position calibration as per damper travel.

Step 5: Restore power, test open/close operation, and confirm proper airflow and response.