Inner Flex Vent Pipe - Vermont Castings 33CFDVNV Installation And Operating Instructions Manual

VENTING INSTALLATION
A Minimum of 3" (76 mm)
Clearance to the Top Is
Required Along Horizontal
Length until Flue Pipe
Penetrates Outside Wall.
Rear Vent
FP3017
rear vent clear
A Minimum of 3" (76
mm) Clearance to the
Top Is Required Along
Horizontal Length until
Flue Pipe Penetrates
Outside Wall.
Top Vent
Figure 28 –
Combustible Clearances for Vent Pipe
FP3018
rear vent clear
20306739
A Minimum 1" (25
mm) Clearance to
Combustibles Permitted
All Around Flue
at Outside Wall
1 "
3 "
1 "
1 "
A Minimum 1" (25
mm) Clearance
to Combustibles
Permitted All Around
Flue at Outside Wall
1 "
3 "
1 "
1 "
FP3018
REAR WALL VENT APPLICATIONS
When installed as a rear vent unit this appliance may be
vented directly to a termination located on the rear wall
behind the appliance.
•
Only Vermont Castings Group approved venting com-
ponents are approved to be used in these applications
(Refer to 'Venting Components' listed for different in-
stallation requirements).
•
The maximum horizontal distance between the rear of
the appliance (or end of the 45º elbow in a corner ap-
plication) and the outside face of the rear wall is 20"
(508 mm). Figure 23
•
Only one 45° elbow is allowed in these installations.
•
Minimum clearances between vent pipe and combus-
tible materials are as follows:
Top – 3" (76 mm), except at outside wall 1" (25 mm)
Sides – 1" (25 mm)
Bottom – 1" (25 mm)
Rear Vent Top View
20"
(508 mm)
Max.
Figure 29 –
Rear Vent Application, No Elbows

INNER FLEX VENT PIPE

FP3002
Start the flexible vent as follows—
rear wall limit
A. Installing the inner flex adaptor and pipe.
1. Attach the flex adapter starter onto the starting col-
lar on the unit. Align seam of the pipe and seam of
collar to allow engagement. Rotate the flex starter
to lock onto appliance. Install three (3) self tapping
#10 screws through the flex starter into the starting
collar of the appliance.
2. Slide the small gear clamp over the inner flexible
vent pipe, and push out of the way.
3. Pull and extend the inner flexible vent.
4. Slide the inner vent onto the adapter collar, for a
minimum 2" overlap.
5. Locate the clamp at approximately 3/4" from the
flex end and tighten.
6. Secure the clamped inner section with three self
tapping screws, drilled equidistant, just above the
clamp perimeter.
CFDV Series Gas Fireplace
20"
(508 mm)
Max.
19