Damper troubleshooting, Damper maintenance, Our commitment – Greenheck Multi-blade Fire & Combination Fire Smoke Dampers Installation Booklet (826249) User Manual

Page 48

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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.

Duct End
Flange

Corner Piece

3/8 in. bolt
(optional)

Figure 10

Duct

Sleeve

6 in.

Std. Clip
Length

CL

Duct

60 in. Duct

4 Req’d.

48 in. Duct

3 Req’d.

36 in. Duct

3 Req’d.

24 in. Duct

2 Req’d.

18 in. Duct &

Smaller

1 Req’d.

Clip Spacing

Typical TDC/TDF joint

6 in.

6 in.

9 in.

7 in.

7 in.

5 in.

5 in.

5 in.

5 in.

Figure 9: Detail of proprietary flanged system

breakaway connections.

472477• GFSD Rev. 6, May 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

Our Commitment

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