Majestic 360DVS2 Installation instructions & homeowner's manual - page 16
16
Vermont Castings, Majestic Products, 360DVS Series
10002547
#8 Screws (2)
#8 Screws (2)
Maximum Length
12 in. (304.8 mm)
Firestop
(Side View)
CFM135a
For combustible walls: Cut a rectangular hole
measuring 10
3
/
8
in.H x 9
3
/
8
in.W (265 mm x 240 mm)
through the exterior wall and frame. Frame in the
opening per Fig. 19.
For noncombustible walls: Cut a round hole
measuring 7
1
/
2
in. (190 mm) diameter through the
exterior wall and frame (Fig. 19).
STEP 2
For combustible walls: Measure wall thickness and
cut zero clearance sleeve parts to proper length.
Max. length is 12 in. (305 mm). Assemble sleeve
to its maximum opening of 10
3
/
8
” x 9
3
/
8
” (265 mm x
240 mm), and attach to firestop with #8 sheetmetal
screws (supplied). Install firestop assembly (Fig. 20).
NOTE: Zero clearance sleeve is required only for
combustible walls.
Rear Wall Vent Application
Rear wall vent location
DV_vent_loc_rear
9
3
/
8
in.
(240 mm)
10
3
/
8
in.
(265 mm)
7
1
/
2
in.
(190 mm)
Vent Opening for
Combustible Wall
Vent Opening for
Noncombustible Wall
(Framing Detail)
Max. 20"
(508 mm)
Fig. 18 Rear vent application
Fig. 20 Adjustable zero clearance sleeve
Fig. 19 Locate vent opening on rear wall
STEP 1
Locate and cut vent opening in the rear wall.
When installed as a rear vent unit this appliance may
be vented directly to a termination located on the rear
wall behind the appliance.
• Specific rear vent starter kits must be used in these
applications (see ‘venting components’). The
appliance has been approved for installation flat
against a rear wall (Fig. 18).
• Maximum horizontal distance between the rear of
the appliance and the outside face of the rear wall
is 20 in. (508 mm) (Fig. 18).
• Minimum clearances between any combustible
material and the vent pipe sections are:
Top .................................................... 2” (51 mm)
Sides ................................................. 1” (25 mm)
Bottom .............................................. 1” (25 mm)
STEP 3
Measure the horizontal length requirement for the
venting including a 2” (51 mm) overlap, i.e. from the
elbow to the outside wall face plus 2” (51 mm), or the
distance required if installing a second 90˚ elbow
(Fig. 22).
STEP 4
Install the 4” (102 mm) vent to the appliance collar
and secure with 3 sheetmetal screws. Install the 7”
(178 mm) vent pipe to the appliance collar and secure
with three (3) sheetmetal screws. It is not necessary to
seal this connection.
It is critical there be no downward
slope away from the appliance when
connecting the vent or elbow.
STEP 5
Guide vent through the vent hole as you place the
appliance in its installed position. Guide the 4”
(102 mm) and 7” (178 mm) collars of the vent
termination into the outer ends of the venting.
Do not force the termination. If the vent pipes do not
align with the termination, remove and realign the
venting at the appliance flue collars.
Attach the termination to the wall as outlined in the
instruction sheet supplied with the termination.
Rear Wall Vent Installation