Maintenance; Troubleshooting - Greenheck ODFD Series Installation, Operation And Maintenance Manual

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, 92, 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
Damper does not
operate
Possible Cause
Frame is 'racked' causing blades to bind
on jamb seals
Actuator linkage loose
Defective motor
Screws in damper linkage
Contaminants on damper
Heat
No power supplied to the actuator
Corrective Action
Adjust frame such that it is square and plumb
Close damper, disconnect power, adjust and tighten
linkage
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

Maintenance)

Push reset button located on backside of RRL or TOR
Add power supply
Out of Wall Fire and Combination Fire Smoke Dampers 9