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Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble, install,
operate or maintain the product described. Protect yourself and others by observing all safety information. Failure
to comply with these instructions will result in voiding of the product warranty and may result in personal injury
and/or property damage.
These instructions apply to the automatic balancing damper, including dampers with a transition and a grille mount
box. The ABD is a reversible product and can be used for exhaust or supply applications.
NOTE: The ABD is air flow dependent and the direction of airflow through the product is critical for proper operation.
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).
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.
®
See complete marking on
product.
UL 2043 Classification
R39668
Table of Contents
General Installation ............................................ 2
Round Duct/Opening Installation ...................... 2
Square Duct/Box Transition Installation ........... 3
Grille Mount Box Installation ............................. 3
Operation - CFM Set-Point Adjustment ............ 4
Maintenance ..................................................... 4
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.
Automatic Balancing Dampers
Document 483591
ABD Series
1
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Summary of Contents for Greenheck ABD Series
- Page 1 Document 483591 ABD Series ® Installation, Operation and Maintenance Manual Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with these instructions will result in voiding of the product warranty and may result in personal injury and/or property damage.
- Page 2 General Installation Greenheck’s ABD dampers can be installed anywhere a constant volume of air is required. Assure that the airflow direction is properly aligned for your application (see Figure 1). The ABD is designed for installation without the need for any screws or fasteners. The adjustment of the cfm set-point is accomplished by positioning the set-point indicator to the notch corresponding to the desired cfm (see Figure 2).
- Page 3 Square Duct/Box Transition Installation Installation into square duct requires a square to round transition. Greenheck model ABD-T is supplied with a factory square to round transition. The size of the transition can be specified at the time it is ordered. (see Figure 5).
- Page 4 Operation - CFM Set-Point Adjustments The design of the Greenheck ABD allows for easy field adjustment to over 20 cfm set-points.The set-point range for the 4 and 5 inch damper is 25 to 125 cfm. For the 6 inch damper, the range is 55 to 250 cfm.