Termination Clearances; Assembling Vent Pipe; Flex Vent Pipe - Vermont Castings 33CFDV(N/P)(V/I)SB Installation And Operating Instructions Manual

CFDV Series Gas Fireplace

TERMINATION CLEARANCES

Termination clearances for buildings with combustible and non-combustible exteriors.
Inside Corner
G
V
Balcony -
with no side wall
M =
Combustible &
Noncombustible
12" (305 mm)
*NOTE: Termination in an alcove space (spaces open only on one side
and with an overhang) is permitted with the dimensions specifi ed for
vinyl or non-vinyl siding and soffi ts. 1. There must be a 3' (914 mm) min-
imum between termination caps. 2. All mechanical air intakes within 10'
Figure 16 –
Termination Clearances

ASSEMBLING VENT PIPE

Only venting components manufactured or approved by
Vermont Castings Group may be used in Direct Vent sys-
tems.
USA Installations
The venting system must conform to local codes and/or
the current National Fuel Code ANSI Z223.1/NFPA 54.
Canadian Installations
The venting system must be installed in accordance with
the current CSA-B149.1 installation code.

FLEX VENT PIPE

Secure fl ex vent pipe in place with a hose clamp (provid-
ed).
•
Be sure the fl ex pipe overlaps at least 1" (25 mm) onto
the collars of the fi replace and termination. If the ter-
mination has an internal bead, be sure to overlap and
secure 1" (25 mm) past the bead.
14
Outside Corner
G =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
Balcony -
with perpendicular side wall
M
V
Combustible &
Noncombustible
M = 12" (305 mm)
P = 6" (152 mm)
F =
Combustible
6" (152 mm)
V
Noncombustible
2" (51 mm)
F
M
V
P
(1 m) of a termination cap must be a minimum of 3' (914 mm) below the
termination cap. 3. All gravity air intakes within 3' (914 mm) of a termina-
tion cap must be a minimum of 1' (305 mm) below the termination cap.
•
Tighten fl ex clamp to fl ex pipe so it is tight to collar and
cannot slip off.
•
Apply a tug to be sure the vent will not slip off the col-
lars.
•
Repeat process with 7" fl ex vent pipe. The same pro-
cedure must be performed on the vent side.
Figure 17 –
Secure Flex Vent Pipe with Hose Clamps.
VENTING INSTALLATION
Alcove Applications*
D
C
C
V
E
O
E
= Min. 2" (51 mm) for
non-vinyl sidewalls
Min. 12" (305 mm) for
vinyl sidewalls
O
= 8' (2.4 m) Min.
No. of
Caps D . C
MIN MAX
1 3' (914 mm) 2 x D
ACTUAL
2 6' (1.8 m) 1 x D
ACTUAL
3 9' (2.7 m) 2/3 x D
ACTUAL
4 12' (3.7 m) 1/2 x D
ACTUAL
D = Number of Termination caps x 3
Min.
C = (2 / Number termination caps) x D
Max.
.
Actual
584-15
Hose Clamp
FP2290
20306739