Operating instructions

0
75D0004
MLDV Series Gas Fireplace

FP1954
wall framing
9
1
/"
(41 mm)
9
1
/"
(41 mm)
7
1
/"
(190 mm)
Combustible
Wall
Noncombustible
Wall
FP1954
Figure 26 -
Exterior Wall Framing Dimensions
for 4" x 6
5
/8" or 4" x 7"

When it is not possible to meet the required vent terminal
clearances of 1" above grade level, a snorkel kit is recom-
mended. It allows installation depth down to 7" (178 mm)
below grade level. The 7" (178 mm) is measured from the
center of the horizontal vent pipe as it penetrates through
the wall.




If installing a snorkel, a minimum 4" vertical rise is nec-
essary. The maximum horizontal run with the 4” vertical
pipe is 36". This measurement is taken from the collar of
the replace (or transition elbow) to the face of the exterior
wall. Refer to the Sidewall Venting Graph for extended
horizontal run if the vertical exceeds 4".
1. Establish vent hole through the wall.
. Remove soil to a depth of approximately 16" below base
of snorkel. Install drain pipe. Install window well (not
supplied). Rell hole with 1" of coarse gravel leaving
a clearance of approximately 4" below snorkel. Figure
27
3. Install vent system.
4. Ensure a watertight seal is made around the vent pipe
coming through the wall.
5. Apply high temperature sealant caulking (supplied)
around the 5" and 8" snorkel collars.
6. Slide the snorkel into the vent pipes and secure to the
wall.
7. Level the soil so as to maintain a 4" clearance below
snorkel. Figure 27
FP1965
below grade install
Figure 27 -
Below Grade Installation
Screws
Minimum
4" Clearance
Ground
Window Well
Gravel
Drain
Foundation Wall
Firestop
1"
Minimum
FP1965
FP1966
snorkel
Figure 28 -
Snorkel Installation, Recessed Foundation
Foundation
Recess
Watertight Seal
Around Pipe
Sheet Metal
Screws
Wall Screws
Snorkel
FP1966

 
        


If the foundation is recessed, use recess brackets (not
supplied) for securing lower portion of the snorkel. Fasten
brackets to wall rst, then secure to snorkel with self drill-
ing #8 x
1
/ sheet metal screws. It will be necessary to
extend vent pipes out as far as the protruding wall face.
Figure 28