Vermont Casting 360DVSL - Manual (Page 19)

19
360DVS Series Direct Vent Fireplaces
10006326
2” (51mm). Secure termination to the wall with screws
provided, and caulk around the wall plate to weather-
proof.
One alternative to screwing the termination directly to
the wallis the use of expanding plugs or an approved
exterior construction adhesive.
Or, you may attach the termination with screws through
the inner body into the 4” (102mm) vent pipe; however,
for this method, you must extend the 4” (102mm) pipe
approximately 6” (153mm) beyond the outer face of the
wall.
Support the horizontal pipes with metal
pipe straps every 36” (914mm).
Below Grade Installation
When it is not possible to meet required vent terminal
clearances of 12” (305mm) above grade level, we
recommend using a starter kit. It allows installation
depth down to 7” (178mm) below grade level. Measure
7” (178mm) from the center of the horizontal vent pipe
as it penetrates through the wall.
NOTE:Ensure sidewall venting clearances are
observed. If venting system is installed below
ground, we recommend a window well with ad-
equate and proper drainage.
If installing a snorkel, a minimum 24” (610 mm)
vertical rise is necessary. The maximum horizontal
run with 24” (610mm) vertical pipe is 36” (914mm).
The measurement is taken from the collar of the
fireplace (or transition elbow) to the face of exterior
wall. See sidewall vent graph, Page 15, for extended
horizontal runs if the vertical exceeds 24” (610 mm).
1. Establish vent hole through the wall. (Fig. 24)
2. Remove soil to depth of about 16” (406mm) below
base of snorkel. Install window well (not supplied).
Refill hole with 12” (305mm) of coarse gravel,
leaving a clearance of about 4” (102mm) below
snorkel. (Fig. 28)
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 4 in. and 7 in. snorkel collars.
6. Slide snorkel into vent pipes and secure to wall.
7. Level the soil so as to maintain a 4” (102mm)
clearance below snorkel. (Fig. 29)
Zero Clearance
Sleeve (if required)
Firestop
7” Pipe
24” (610mm)
Minimum
Screws
7TDVSNORK
(Snorkel)
Min. 4” (102mm)
Clearance
(Ground)
Window Well
Gravel
Foundation Wall
Drain
• A minimum of 24” (610mm)
vertical pipe must be installed
when using the 7TDVSNORK
Kit.
• The 22” (559mm) vertical rise
(center to center) of the snorkel
may be included for calculation
of maximum horizontal run.
FP1442
Fig. 28 Below grade installation.
Do not backfill around the snorkel. A
clearance of at least 4” (102mm) must be
maintained 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 sheetmetal screws. It will be
necessary to extend vent pipes out as far as protruding
wall face. (Fig. 29)
Snorkel
Foundation Wall
Watertight Seal
Around Pipe
Wall Screws
Sheet Metal Screws
CFM139
Fig. 29 Snorkel installation / recessed foundation.