Vertical Through-The-Roof Applications & Installation - Majestic fireplaces LDVR1 Installation Instructions And Homeowner's Manual

Zero Clearance
Sleeve
(if required)
Firestop
7" Pipe
24" (610mm)
Minimum*
Fig. 31 Below grade installation.
Do not back fill around snorkel. A
clearance of at least 4" (102mm) must be
BG400
maintained between the snorkel and the
Below grade installation
soil.
2/10/99 djt
10/19/99 added standoffs
Foundation Recess
Recess Brackets
Watertight Seal
Around Pipe
Fig. 32 Snorkel installation, recessed foundation.
BG401
If the foundation is recessed, use recess brackets (not
supplied) for securing lower portion of the snorkel.
Snorkel
Fasten brackets to wall first, then secure to snorkel
2/10/99 djt
with self drilling #8 x 1/2 sheet metal screws. It will be
necessary to extend vent pipes out as far as protruding
wall face. (Fig. 32)
10007317
7TDVSNORK
(Snorkel)
4" (102mm)
Clearance
Min.
Window
Well
Gravel
Drain
Foundation Wall
*A minimum of 24" (608mm)
vertical pipe must be installed
when using 7TDVSNORK Kit.
BG400
Snorkel
Wall Screws
Sheet Metal
Screws
BG401
LDVR Series Direct Vent Gas Fireplace
Vertical Through-the-Roof Applications
This Gas Fireplace has been approved for:
1. Vertical installations up to 40' (12 m) in height. Up to
10' (3 m) horizontal vent run can be installed within
the vent system using a maximum of three 90°
elbows.
Minimum
8' (2.4 m) /
Maximum
40' (12 m) Vertical
Rise
Fig. 33 Support straps for horizontal runs.
CFM148
This Gas Fireplace has been approved for:
1. Vertical installations up to 40' (12 m) in height. Up to
10' (3 m) horizontal vent run can be installed within
the vent system using a maximum of three 90°
elbows.
2. Up to two 45° elbows may be used within the
horizontal run. For each 45° elbow used on the
horizontal level the maximum horizontal length must
be reduced by 18" (457 mm).
Example: Maximum horizontal length
0 x 45° elbows = 10' (3 m)
1 x 45° elbows = 8¹⁄₂' (2.6 m)
2 x 45° elbows = 7' (2.1 m)
3. A minimum of an 8' vertical rise.
4. Two sets of 45° elbows offsets within these vertical
installations. From 0 to a maximum of 8' (2.4 m) of
vent pipe can be used between elbows. (Fig. 34)
5. 7DVCS must be used to support offsets. (Fig. 34)
This application will require that you first determine
the roof pitch and use the appropriate 7DVSKV (A, B
or F). (Refer to Venting Components List, Page 21)
Maximum
10'
(3 m)
Pipe Straps Every
3' (914 mm)
CFM148
19