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10009383 13
XDV Direct Vent Gas Fireplace
Outside Corner
Inside Corner
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
A =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
B =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
A
Balcony -
with no side wall
G =
Combustible &
Noncombustible
12" (305 mm)
G
Balcony -
with perpendicular side wall
H = 24" (610 mm)
J = 20" (508 mm)
H
J
B
Recessed Location
C = Maximum depth of 48"
(1219 mm) for recessed
location.
D = Minimum width for back wall
of a recessed location.
Combustible 38" (965 mm)
Noncombustible 24"(610 mm)
E = Clearance from corner in
recessed location.
Combustible 6" (152 mm)
Noncombustible 2" (51 mm)
C
D
C
E
V
V
Combustible &
Noncombustible
V
V
V
Fig. 15 Termination clearances.
General Information Assembling Vent Pipes
Canadian Installations:
Venting system must be installed in accordance with the
current CSA-B149.1 installation code.
USA Installations:
The venting system must conform with local codes and/
or the current National Fuel Gas code ANSI Z223.1/
NFPA 54.
Only venting components manufactured by CFM Corpo-
ration can be used in Direct Vent systems.
Flex Vent Pipes
Before joining the flex vent pipe to the unit, apply a
bead of high temperature sealant* (provided) to the 4”
pipe exiting the fireplace. Secure flex vent piep in place
with a hose clamp (provided).
*Be sure the flex pipe overlaps at least 1” (25 mm) onto
the collars of the fireplace and termination. If the ter-
mination has an internal bead, be sure to overlap and
secure 1” (25 mm) past the bead.
* Be sure the flex vent is flat and flush with the flue or
outer collar before proceeding. Apply a tug to be sure
the vent will not slip off the collars.
Repeat process with 7” flex vent pipe. The same proce
-
dure must be performed on the vent side.
FP1471
flex vent
Apply High Temperature
Sealant
Hose Clamp
FP1471
Fig. 16 Apply high temperature sealant to 4” and 7” pipes.