Greenheck BR Series - Counterweight Adjustment (469420) - Manual

Document Number 469420
BR series Counterweight Adjustments
Installation, Operation, and Maintenance Instructions
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.
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 (37ºC).
SAfety WARNINg:
Improper installation, adjustment, alteration,
service or maintenance can cause property
damage, injury or death. Read the installation,
operating, and maintenance instructions
thoroughly before installing or servicing this
equipment.
Due to continuing research, Greenheck reserves the right to change specifications without notice.
Pre-Installation guidelines
The basic intent of a proper installation is to secure the damper into 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
linkage. When handling multiple sections assemblies, use sufficient support to evenly
lift at each section mullion (see Figure 1). Do not drag, step on, apply excessive
bending, twisting, or racking.
3) Do not install screws in damper frame that will interfere with damper blades and
prevent them 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 prevent free operation.
5) Damper must be kept clean, dry 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) Drywall/mortar dust
b) Firesafing materials
c) Wall texture
d) Paint overspray
6) Damper should be sufficiently covered as to prevent overspray if wall texturing or spray painting will be performed
within 5 feet (1.50m) of the damper.
Spreader Bar
Attachments
Multi section dampers
Figure 1- supports for lifting a
multi-section damper
®