Installation (for qualified installers only)
15
© Travis Industries
4140813
100-01294
Vent Restrictor
WARNING
: Restrictor adjustment should only be done by a qualified installer.
Only those installations determined to be over-drafting require this adjustment. The best indication of over-
drafting is a hyper-active flame pattern (flames that move too quickly). If the air shutter is constricted, the
flames become short and yellow, yet still very active. Over-drafting may affect the pilot, but this is not the
best way to determine over-drafting. Over-drafting is most likely in tall venting configurations. Do not over-
restrict the vent (this leads to ghosting or lifting flames - reduce restrictor setting).
The restrictor is adjusted with the face removed. Start with the restrictor in position number 1. Monitor
the flame for 5 minutes before adjusting. Move the restrictor a maximum two positions at a time by lifting
the adjustment plate and moving it until the correct notch falls into the slot on the adjustment bracket (use
a glove if the heater is hot - see illustration below). Monitor the flame for 5 minutes to determine correct
restrictor position and repeat restrictor adjustment if necessary.
Restrictor in Position #1
Moving the Restrictor
Restrictor in Position #3
Vent Installation
Secure the vent to the fireplace insert and termination kit using screws.
Inlet (3" 76mm)
Exhaust (4" 102mm)
Inlet
Exhaust
3" (76mm) dia.
4" (102mm) dia.
Inlet
Exhaust
Additional Coaxial
Sections May Be Added
(support as needed)
Approved
Cap
Restrictor positions:
1
2
3
4
5
