Vermont Casting DVBR42 - Manual (Page 12)

12
DVBR Series Direct Vent Gas Fireplace
20000584
General Information Assembling Vent Pipes
584-15
Fig. 15 Termination clearances.
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 pipe in place
with a hose clamp (provided).
*Be sure the flex pipe overlaps at least 1” (25mm) 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.
FP1471
flex vent
Apply High Temperature
Sealant
Hose Clamp
FP1471
Fig. 16 Apply high temperature sealant to 4” and 7” pipes.
Canadian Installations
The venting system must be installed in accordance
with the current CSA-B149.1 installation code.
USA Installations
The venting system must conform to local codes and/or
the current National Fuel Code ANSI Z223.1/NFPA 54.
Only venting components manufactured by CFM Corpo-
ration may be used in Direct Vent systems.
* Be sure the vent is actually crushed before proceed-
ing. 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.
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