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Installation (for qualified installers only)
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 (especially if using an "Exhaust Only Re-Line"). Do not over-restrict the vent (this leads to
ghosting or lifting flames - reduce restrictor setting).
Adjustment
Plate
Adjustment
Bracket
This restrictor is in position 1
(factory setting).
Vent Installation
Exhaust (3")
© Travis Industries
To Access the Restrictor:
Remove the face.
To Adjust the Restrictor:
1
Determine a restrictor position. Start low (move
the restrictor a maximum two positions at a time)
and thoroughly test the heater before adjusting further.
2
Lift up the adjustment plate and move it so the correct notch falls
into the slot on the adjustment bracket.
#4 #5 #6
#3
#2
#1
To adjust, lift up on the
adjustment plate and push it back
(use pliers if necessary).
Inlet (3")
3" dia. Gas Liner
Use hose-clamps
to secure the vent.
Alternative Method: use high-temperature
silicone and secure with screws.
High Wind
Termination Cap
Simpson Duravent
6-5/8" to 3" & 3"
Co-Linear Adapter
Inlet
Exhaust
4090812
WARNING: Use a glove to protect
your hand from burns.
This restrictor is in
position 2.
Use hose-clamps to
secure the vent.
Alternative Method: use
high-temperature
silicone and secure with
screws.
100-01232_001
15
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