Vertical Through-The-Roof Applications & Installation - Majestic DV360 Homeowner's Installation And Operating Manual

Vermont Castings Majestic Products DV360/580 Series
Do not back fill around snorkel.
A clearance of at least 4" must be main-
tained between the snorkel and the soil.
If the foundation is recessed, use recess brackets (not
supplied) for securing lower portion of the snorkel.
Fasten brackets to wall first, then secure to snorkel
with self drilling #8 x 1/2 sheet metal screws. It will be
necessary to extend vent pipes out as far as the
protruding wall face. (Fig. 34)
Foundation
Recess
Watertight
Seal Around
Pipe
f i r e - p a r t s . c o m
Fig. 34 Snorkel installation, recessed foundation.
Vertical Through-the-Roof Applications
This gas fireplace has been approved for:
•
Vertical installations up to 40' (12m) in height. Up to
a 10' (3m) horizontal vent run can be installed within
the vent system using a maximum of two 90°
elbows. (Fig. 35)
•
Up to two 45° elbows may be used within the
horizontal run. For each 45° elbow used on the
horizontal plane, the maximum horizontal length
must be reduced by 18" (450mm).
Example: Maximum horizontal length:
No elbows = 10' (3m)
1 x 45° elbow = 8.5' (2.6m)
2 x 45° elbows = 7' (2.1m)
•
A minimum of an 8' (2.5m) vertical rise is required.
•
Two sets of 45° elbow offsets may be used within
the vertical sections. From 0 to a maximum of 8'
(2.5m) of vent pipe can be used between elbows.
(Fig. 36)
•
7DVCS supports offsets. (Fig. 38) This application
will require that you first determine the roof pitch
and use the appropriate starter kit. (Refer to Venting
Components List)
•
The maximum angular variation allowed in the
system is 270°. (Fig. 36)
•
The minimum height of the vent above the highest
point of penetration through the roof is 2' (610mm).
(Fig. 39) Refer to note 2, Page 13.
18
Snorkel
Wall
Screws
Sheet Metal
Screws
BG401
Max. Height 40' (12.2m)
Min. Height 8' (2.4m)
Max.
Height 40' (12.2m)
Min.
Height 8' (2.4m)
Fig. 35 Support straps for horizontal runs.
1 + 2 + 3 + 4 = 270°
1
2
3
4
Fig. 36 Maximum elbow usage.
Max. 10' (3m)
Support Straps
Every 3' (.9m)
Max. 10' (3m)
FP1183
1
2
3
4
FP1179
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