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20X18 ND-RSD NO | Rectangular Damper | 20X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN | EWC Controls (OBSOLETE)
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EWC Controls 20X18 ND-RSD NO Documents
Overview
Details for 20X18 ND-RSD NO
DISCONTINUED MODEL, CONTACT TECHNICAL SUPPORT FOR REPLACEMENT OPTIONS ACTUATORS ARE INSTALLED ON THE 2ND DIMENSION, PHOTO IS GENERIC AND MAY NOT REPRESENT THE PART BEING ORDERED
Rectangular Damper | 20X18 ND MOTORIZED DAMPER SPRING RETURN - NORMALLY OPEN
Model ND-RSD is a rectangular parallel blade damper constructed from heavy duty extruded aluminum with nylon bearings for quiet operation. The Motor Actuator is a 24vac ( Synchronous motor. It is typically a Power Close / Spring Open construction. The damper can be ordered as Power Open / Spring Close. The Model ND-RSD cannot be field-reversed. The motor can get very warm when energized/stalled for extended time periods. To avoid overheating, do not insulate or encapsulate the motor housing. Doing so will damage the actuator assembly and void the warranty. 6watt / 8va) Synchronous See reverse side for wiring solutions.
Specifications
Item Number | 20X18 ND-RSD NO |
Brand | EWC Controls |
Motorized | Yes |
Shape | Rectangular |
Size (in) | 20 x 18 |
Spring Return | Spring Return (NO) |
Type | Rectangular Dampers |
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