Recommended Preparation Of Openings In Wood And Metal Stud; Maintenance; Troubleshooting - Greenheck FSDR Series Installation, Operation And Maintenance Manual

8. Recommended Preparation of Openings in
Wood and Metal Stud Walls
• Frame wall openings as shown. (see Fig. 8)
• Double vertical studs are not required for openings
36 in. x 36 in. (914mm x 914mm) or smaller.
• Gypsum wall board must be fastened 12 in. (305mm)
on center to all stud and runner flanges surrounding
opening. (see Fig. 9)
• All construction and fasteners must meet the
requirements of the appropriate wall design (See UL
Fire Resistance Directory) and/or local codes.
Fig. 9
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.
Damper troubleshooting
The following is a possible cause and correction list for common concerns with the dampers.
Symptom
Damper does not fully
open and/or close
RRL or TOR sensor tripped Heat
Damper does not operate
6
Possible Cause
Frame is 'racked' causing blades to bind on
jamb seals
Actuator linkage loose
Defective motor
Screws in damper linkage
Contaminants on damper
No power supplied to the actuator
Fig. 8
Corrective Action
Adjust frame such that it is square and plumb
Close damper, disconnect power, adjust and tighten link-
age
Replace
Damper installed too far into wall. Move out to line as
designated on damper label
Clean with a non-oil based solvent (see Damper Mainte-
nance)
Push reset button located on backside of RRL or TOR
Add power supply
Copyright © 2008 Greenheck Fan Corporation
461868 FSDR-XXX Rev. 10 December 2008