General Information For Connecting Vent Pipes - Majestic fireplaces DVRTSB Installation And Operating Manual

DVRTSB Bay Window Fireplace
Termination Clearances
Termination clearances for buildings with combustible and noncombustible exteriors.
Inside Corner
G =
Combustible
G
6" (152 mm)
Noncombustible
V
2" (51 mm)
Balcony -
with no side wall
M
V
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
specified for vinyl or non-vinyl siding and soffits. 1. There must be a 3' (914 mm) minimum between termination caps. 2. All
mechanical air intakes within 10' (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 termination cap must be a minimum of 1' (305 mm) below the termination cap.
Fig. 12a Termination clearances.
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 direct vent components manufactured by CFM
Corporation can be used in Direct Vent systems.
Twist Lock Pipes
When using CFM Corporation twist-lock pipe it is not
necessary to use sealant on the joints. The only areas
of the venting system that need to be sealed with high
temperature silicone sealant are the sliding joints of any
telescopic vent section used in the system.
12
Outside Corner
V
F
Balcony -
with perpendicular side wall
M
Combustible &
Noncombustible
M = 24" (610 mm)
P = 20" (508 mm)

General Information for Connecting Vent Pipes

Alcove Applications*
F =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
of Caps
V
P
D
Min.
C
Max.
To join the twist lock pipes together, simply align the
beads of the male end with the grooves of the female
end, twisting the pipe until the flange on the female
end contacts the external flange on the male end. It is
recommended that you secure the joints with three (3)
sheet metal screws, however this is not mandatory with
twist lock pipe.
NOTE: For ease of assembly, use a lubricant (Vaseline
or similar substance) on male end of twist lock pipe
prior to assembly.
Male End
Screw Holes
Fig. 14 Twist-lock pipe joints.
D
C
C
V
E
O
E
= Min. 6" (152 mm) for
non-vinyl sidewalls
Min. 12" (305 mm) for
vinyl sidewalls
O
= 8' (2.4 m) Min.
No.
D C
Min.
1 3' (.9 mm) 2 x D
2 6' (1.8 m) 1 x D
3 9' (2.7 m) 2/3 x D
4 12' (3.7 m) 1/2 x D
= # of Termination caps x 3
= (2 / # termination caps) x D
Actual
Female End
TWL100
Twist Lock Pipe
3/12/99 djt
Max.
Actual
Actual
Actual
Actual
584-15
TWL100
10003848