Installation Instructions

Installation Instructions
Document No. 129-389
October 2, 2009
Powers™ Controls
No. 6 Damper Actuator–Tandem Mounting
Item Number: 129-389, Rev. 010 Page 1 of 2
Product Description
The No. 6 Damper Actuators - Tandem Mounting
consist of two No. 6 actuators piloted by a
positioning relay mounted on a sturdy angle iron
frame.
Product Number
331-3070
Required Tools
• Six-inch adjustable crescent wrench
• Slip joint pliers
Expected Installation Time
1.5 hours
Installation
1. Install dampers to enable inlet vanes or damper
blades and linkage to move freely.
2. Select a location for the actuator assembly that
will allow the linkage to operate the damper or
inlet vanes without obstruction.
3. Attach the angle iron frame of the actuator
assembly to the mounting surface with
appropriate fasteners. (See Figure 1.)
4. Determine the length “L” (NPT pipe length)
shown in Figure 2 required for the application.
Increase the length of “L” by the amount of
thread engagement at each end of the pipe.
5. Obtain locally the required length of pipe with
1/2-inch NPT threads at each end.
The installation is now complete.
Figure 1. Damper or Inlet Vane Mounting Hole Locations (Top View).