Brochure

24 Customer Service: 252.522.3031
TROUBLESHOOTING
Troubleshooting
Basic Sequence of Operation for 24v Units
When the fireplace is turned on, a 24v signal is sent by the fireplace control to the damper controller. The damper
controller motor then rotates the damper blade, which is indexed to a cam, to the open position to allow products
of combustion to pass through the flue outlet. The cam proves the damper is in the open position and switches 24v
from the motor to the main gas valve or ignition system, which fires the main burner.
When the fireplace is turned off, the fireplace control removes the 24v signal to the damper controller, shutting off
the main burner. After a 30-40 second delay, the damper controller motor then rotates the damper blade to the
closed position and resets itself for the next time the fireplace is turned on.
Turn on the gas and electrical supplies to the appliance. Check the operation of the Flue Sentinel by cycling the
appliance at least three times as follows:
1. Switch the fireplace control to turn on the fireplace.
2. The damper will open and fire the main burner. The damper must be in the open position when appliance
main burner is operating.
3. Switch the fireplace control to turn off the fireplace. The main burner will immediately shut off and, after
approximately 30-40 seconds, the damper will rotate to the closed position.
Basic Sequence of Operation for Millivolt Units
When the fireplace is turned on, a millivolt signal is sent by the fireplace control to the damper controller. The
damper controller motor then rotates the damper blade, which is indexed to a cam, to the open position to allow
products of combustion to pass through the flue outlet. The cam proves the damper is in the open position and sends
the millivolt signal to the main gas valve, which fires the main burner.
When the fireplace is turned off, the fireplace control removes the millivolt signal to the damper controller, shutting
off the main burner. The damper controller then waits 30 seconds* then rotates the damper blade to the closed
position and resets itself for the next time the fireplace is turned on.
Turn on the gas to the appliance and light the pilot. Check the operation of the Flue Sentinel by cycling the appliance
at least three times as follows:
1. Switch the fireplace control to turn on the fireplace.
2. The damper will open and fire the main burner. The damper must be in the open position when appliance
main burner is operating.
3. Switch the fireplace control to turn off the fireplace. The main burner will immediately shut off and, depending
on the system voltage, the damper will rotate to the closed position after approximately 10-50 seconds.
*Average time delay at 450mV. Time delay ranges from 10 to 50 seconds and will be longer at a higher voltage, shorter at a lower voltage.
24v & MILLIVOLT UNITS