Greenheck Multi-blade Fire & Combination Fire Smoke Dampers Installation Booklet (826249) - Manual (Page 15)

Damper Troubleshooting
The following is a possible cause and correction list for common concerns with the dampers.
Symptom Possible Cause Corrective Action
Damper does not fully
open and/or close
Frame is 'racked' causing blades to bind
on jamb seals Adjust frame such that it is square and plumb
Actuator linkage loose Close damper, disconnect power, adjust and tighten
linkage
Defective motor Replace
Screws in damper linkage Damper installed too far into wall. Move out to line as
designated on damper label
Contaminants on damper Clean with a non-oil based solvent (see Damper
Maintenance)
RRL or TOR sensor
tripped Heat Push reset button located on backside of RRL or TOR
Damper does not
operate No power supplied to the actuator Add power supply
Damper Maintenance
Dampers do not typically require maintenance as long as they are kept dry and clean. If cleaning is necessary, use mild
detergents or solvents. If lubrication is desired for components such as axle bearings, jackshaft bearings and jamb seals, do
not use oil-based lubricants or any other lubricants that attract contaminants such as dust.
Dampers and their actuator(s) must be maintained, cycled, and tested a minimum in accordance with:
• The latest editions of NFPA 80, 90A, 92A, 92B, 101, 105, UL864, AMCA 503-03 and local codes.
• Actuator manufacturer recommendations.
461336• FSD DFD CFSD Series Rev. 22, November 2014 Copyright 2014 © Greenheck Fan Corporation
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: (715) 359-6171 • Fax: (715) 355-2399 • E-mail: [email protected] • Website: www.greenheck.com
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