Greenheck RBD, RBDR User Manual

Document Number 473325

®

RBD & RBDR Series

Remote Balancing Dampers

Installation, Operation and Maintenance Instructions

Damper
frame/sleeve

Damper
blade

wire

Standoff
bracket

Actuator

Wire tie

Damper
Blade

Figure 1 Figure 2

Damper

Blade
Lances

Wire
Tie

Receiving and Handling

Upon receiving dampers, check for both obvious and hidden damage. If damage is found, record all necessary information
on the bill of lading and file a claim with the final carrier. Check to be sure that all parts of the shipment, including
accessories, are accounted for.

Dampers must be kept dry and clean. Indoor storage and protection from dirt, dust and the weather is highly
recommended. Do not store at temperatures in excess of 100°F (38°C).

Duct

Wire

This manual is the property of the owner, and is required for future maintenance. Please leave it with the owner when the
job is complete.

Pre-Installation Guidelines

The basic intent of a proper installation is to secure the
remote balancing damper in the opening in such a manner
as to prevent distortion and disruption of damper operation.
The following items will aid in completing the damper
installation in a timely and effective manner.

1) Check the schedules for proper damper locations
within the building. Visually inspect the damper for
damage.

2) Lift or handle damper using sleeve or frame. Do not lift
damper using blades or actuators.

3) Do not install screws in damper frame that will interfere
with blade linkage or prevent damper blades from
opening and/or closing.

4) Damper must be installed into duct or opening square
and free of twist or other misalignment. Damper
must not be squeezed or stretched into duct or
opening. Out of square, racked, twisted or misaligned

installations can cause excessive leakage and/or torque
requirements to exceed damper/actuator design.

5) Damper and actuator must be kept clean and protected
from dirt, dust and other foreign materials prior to and
after installation. Examples of such foreign materials
include but are not limited to:

a) Mortar dust
b) Drywall dust
c) Firesafing materials
d) Wall texture
e) Paint overspray

7) Damper should be sufficiently covered as to prevent
overspray if wall texturing or spray painting will be
performed within 5 feet of the damper. Excessive dirt
or foreign material deposits on damper can cause
excessive leakage and/or torque requirements to
exceed damper/actuator design.

Installation Instructions

Round, RBDR series, dampers are supplied from the factory
with the actuator installed see Figure 1.

Square/rectangular, RBD series, dampers are supplied with
an actuator kit that must be field installed as follows:

1) Install the RBD series damper into the ductwork with the
lanced end of the blade positioned to the side of the duct
where the actuator is to be located (see Figure 2).

2) Drill a minimum 9/16 in. (14mm) diameter hole that lines
up with the center pivot of the damper blade.

3) Insert the pointed end of the pin through the hole and into
the blade lances. Pound pin into the blade lances until the
end of the pin is ½ in. (13mm) outside of the duct surface
while the blade is centered in the damper frame.

Installation Instructions

4) With the blade closed, install the actuator by aligning
the coupler over the end of the square pin (as shown in
Figure 2) and sliding the actuator assembly onto the pin
until the bracket is in contact with the duct surface.

5) Check the blade clearance to be sure that the blade
can move side to side in the frame and it is not pressed
against the opposite side of the damper frame. If the
blade is pressed against the opposite side, the pin may
need to be pounded a little further into the blade.

6) Connect a Greenheck EZ Balance control device to the
actuator. While holding the actuator assembly against
the duct, press and hold the “Close” button until the “full
closed” light flashes.

7) Rotate the actuator assembly to hold the blade closed

then secure the actuator to the duct using the two
supplied screws.

8) Recheck the blade clearance and damper operation by
cycling the actuator.

9) All wire connections from the wall or ceiling jack to
the damper actuator must be secured to the building
structure in such a way as to prevent strain on the wire
connections (for example: use wire ties to secure a wire
loop at each connection and intermittently between the
connections).

10) The actuator mounting bracket has a factory installed

wire tie for the purpose of providing strain relief at the
actuator. Thread the wire through the wire tie, loop
around and back through the wire tie before connecting
to the actuator box. Tighten the wire tie leaving a short
loop at the actuator.

Electrical Guidelines

RBD & RBDR Series dampers are driven by a 9 volt actuator. The 9 volt power is supplied from a Greenheck “EZ Balance”
hand held remote. The “EZ Balance” remote is plugged into a wall or ceiling jack that is wired to the damper actuator using
wire and connector assemblies.

After the damper and wiring is installed, operation of the damper and wiring circuit must be visually verified by connecting
the “EZ Balance” remote to the wall jack and power up the unit. Using the switch on the “EZ Balance” remote, run the
damper through a complete cycle from full close to full open and reverse back to closed position. Document that proper
operation has been verified.

Damper Troubleshooting

The following is a cause and correction list for common concerns with the dampers.

Symptom Possible Cause Corrective Action

Frame is 'racked' causing blades to bind Adjust frame such that it is square and plumb

Damper does not fully open
and/or fully close

Damper does not operate

Screws in damper components Locate screws and remove

Contaminants on damper Clean with a non oil-based solvent

Defective motor Replace

Remote battery is dead Replace with a 9 volt battery

Broken wire connection Check all wire connections

Broken wire Check wire for cuts, replace if necessary

Our Commitment

As a result of our commitment to continuous improvement, Greenheck reserves the right to
change specifications without notice.
Specific Greenheck product warranties are located on greenheck.com within the product
area tabs and in the Library under Warranties.

®

Phone: [phone] • Fax: [phone] • E-mail: [e-mail] • Website: www.greenheck.com

473325• RBD Rev. 5, April 2014 Copyright 2014 © Greenheck Fan Corporation