Avalon Firestyles Chelan DV-1996 to 1999 - Manual (Page 9)

S
TOVE
I
NSTALLATION
(C
ONT
.)
- For Qualified Installers Only! P AGE 9
Approved Vent Configurations
Restrictor Position
¥ A vent restrictor is built
into the appliance to
adjust the flow rate of
exhaust gases. This
ensures proper flames for
the wide variety of vent
configurations. The
restrictor consists of a
butterfly valve below the
starter section of pipe
and an adjustment plate
with index holes used to
hold the valve in a fixed
position. Depending
upon the vent
configuration, you may
be required to adjust the
restrictor position. The
charts for Approved vent
configurations describe
which position the vent
restrictor must be in.
To Adjust the Restrictor:
1
2
3
4
The eleven holes on the
restrictor plate
correspond to the eleven
restrictor positions.
NOTE:
Position #1 is the
fully open position
Determine the correct
restrictor position (see the
charts under "Approved
Vent Configurations" - the
stock position is #1).
Remove the screw with a
1/4" nutdriver (or
screwdriver).
Rotate the adjustment plate
clockwise until the correct
index hole is below the pivot
point.
Insert the screw into the
correct index hole and
tighten.
Adjustment
Plate
1/4" Nutdriver Index Holes
Pivot Point
This restrictor is
in Position #5.
Screw
Rotate the
adjustment
plate to change
the restrictor
position.
1 2 3
4
5
6
7
8
9
10
11
Elbows
¥ 2 Elbow
maximum
(two 45
°
or
two 90
°
, not
one 45
°
and
one 90
°
)
Measuring Vent
Lengths
Vent Horizontal Run
(measure from the closest
edge of the starter section to
the end of the termination)
Vent Height is
calculated to the
top of the vent on
horizontal
terminations and
to the top of the
termination on
vertical
terminations.
EXAMPLE:
Two 4' lengths are 7' 10-1/2" long,
but when attached to the vent system
add 7' 9" to the horizontal run.
Vent
Height
Elbows add 3" to the
length of the vent system.
3"
3"
Side
View
9-5/8"
1-1/2"
1-1/2"
Vent Length
(4', 3', etc.)
Vent sections overlap
each other by 1-1/2"
The starter section is 1-3/8"
below the upper top.
8-3/4" wide
with 1-1/2" to
3-3/8" of overlap
12-3/8" tall
with 1-1/2"
of overlap