Chapter 6 – Testing and Repair, Page 6-42___________________________________________________
Damper Motor
Overview
Model CG3-UVi-SPC Ventilators include a three position damper referred to as Baffle #1 in the Principle
of Operation section of this manual (Refer to Figure 2-3-1, 2-6-1 and 2-8-1.
The damper is driven by an
24 volt AC/DC Electric Damper Motor located behind an access panel at one end of the Ventilator (Refer
to Figure 6-42-1 and 6-42-2).
The damper motor is called a “motor drive, spring return” type motor and
the mode of operation of the motor to the damper positions is as follows:
Damper Position #2 – The Damper is in the Wash Cycle or Exhaust Fan Off mode (Refer to Figure 2-6-1).
The Damper is electrically driven to this position from any other position, position #1 or #3.
Damper Position #1 – The Damper is in the Exhaust Mode (Refer to Figure 2-3-1).
The damper is
electrically driven to this position.
Damper Position #3 – The Damper is in the Fire Mode (Refer to Figure 2-8-1).
The damper is driven to
this position via and internal spring in the motor no electricity required.
Access Panel to
Damper Motor
Figure 6-42-1
CG3-UV-SPC Ventilator Cut Away View
Figure 6-42-2
Damper Motor
Main Electrical
Raceway Access
Panel
Electrical
Compartment
