Majestic Appliances 36LDVR - Manual (Page 18)

18
LDVR Series Direct Vent Gas Fireplace
10007317
Do not back fill around snorkel. A
clearance of at least 4” (102mm) must be
maintained between the snorkel and the
soil.
BG401
Snorkel
2/10/99 djt
Foundation Recess
Snorkel
Wall Screws
Recess Brackets
Watertight Seal
Around Pipe
Sheet Metal
Screws
BG401
Fig. 32 Snorkel installation, recessed foundation.
BG400
Below grade installation
2/10/99 djt
10/19/99 added standoffs
24" (610mm)
Minimum*
Zero Clearance
Sleeve
(if required)
Firestop
7” Pipe
7TDVSNORK
(Snorkel)
4” (102mm)
Clearance
Min.
Window
Well
Gravel
Drain
Foundation Wall
BG400
Fig. 31 Below grade installation.
*A minimum of 24” (608mm)
vertical pipe must be installed
when using 7TDVSNORK Kit.
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 protruding
wall face. (Fig. 32)
This Gas Fireplace has been approved for:
1. Vertical installations up to 40ʼ (12 m) in height. Up to
10ʼ (3 m) horizontal vent run can be installed within
the vent system using a maximum of three 90°
elbows.
Vertical Through-the-Roof Applications
CFM148
Maximum
10ʼ
(3 m)
Minimum
8ʼ (2.4 m) /
Maximum
40ʼ (12 m) Vertical
Rise
CFM148
Pipe Straps Every
3ʼ (914 mm)
Fig. 33 Support straps for horizontal runs.
This Gas Fireplace has been approved for:
1. Vertical installations up to 40ʼ (12 m) in height. Up to
10ʼ (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 = 10ʼ (3 m)
1 x 45° elbows = 8¹⁄₂ʼ (2.6 m)
2 x 45° elbows = 7ʼ (2.1 m)
3. A minimum of an 8ʼ vertical rise.
4. Two sets of 45° elbows offsets within these vertical
installations. From 0 to a maximum of 8ʼ (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)