Vermont Casting DVRTSB - Manual (Page 12)

12
Vermont Castings, Majestic Products DVRTSB
10003848
General Information for Connecting Vent Pipes
Outside Corner Inside Corner
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
A =
Combustible
6"(152mm)
Noncombustible
2"(50mm)
B =
Combustible
6"(152mm)
Noncombustible
2"(50mm)
A
Balcony -
with no side wall
G =
Combustible &
Noncombustible
12"(305mm)
G
Balcony -
with perpendicular side wall
H = 24"(610mm)
J = 20"(508mm)
H
J
B
Recessed Location
C = Maximum depth of 48"
(1219mm) for recessed
location.
D = Minimum width for back wall
of a recessed location.
Combustible 38"(965mm)
Noncombustible 24"(610mm)
E = Clearance from corner in
recessed location.
Combustible 6"(152mm)
Noncombustible 2"(50mm)
C
D
C
E
V
V
Combustible &
Noncombustible
V V
V
584-15
Fig. 12 Termination clearances.
Crimped End Pipes
Before joining elbows and pipes apply a bead of high
temperature sealant to the crimped end of the elbow or
pipe. Join the pipes using a 2” (50mm) overlap and
secure the joints with three (3) sheet metal screws.
(Fig. 13) Wipe off excess sealant.
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.
Only direct vent components manufactured by Vermont
Castings, Majestic Products can be used in Direct Vent
systems.
1" (25mm)
Screw Holes
FP1175
Fig. 13 Apply a bead of high temperature sealant.