Rear (Through-The-Wall) Applications - Monessen Hearth BDV300 Instruction Manual

BDV Series Direct Vent Gas Fireplace
ReAR (thRouGh the WAll) ApplIcA-
tIoNs
When installed as a rear vent unit this appliance may be
vented directly to a termination located on the rear wall
behind the appliance
•
The maximum horizontal distance between the rear of
the appliance and the outside of termination is 0" (508
mm). Figure 14
•
Only one 45° elbow is allowed in these installations.
Maximum
0"
Figure 14 -
Rear Vent Application, Maximum Horizontal Distance
DVR584-600
Sealant is not required to assemble BDV/DVB fireplace
venting. Do not use silicone sealant at the flue exhaust Rear vent no elbows
connections.
2/99 djt
1. Find the pipe section's direction label. The label arrow
shall be pointed away from the firebox and toward the
termination. Firmly insert the initial rigid section/elbow
into the firebox outer collar. Simpson "GS" and Selkirk
"DT" outer walls are hemmed and will snap into the
collar's tabs. Attach Simpson's DirectVent Pro by fully
inserting into the collar and securing with self tapping
screws. The screws shall only penetrate the flue outer
wall.
Refer to vent manufacturer's installation instructions to
properly assemble flue.
Note: Horizontal runs of
vent must be supported
every three feet (914 mm).
Use wall straps for this pur-
pose.
Figure 15 -
Rigid Vent Pipe Connections
16
FP1953
rigid pipe
top View
Flat Installation
DVR584-600
Female Locking
Lugs
Male Slots
FP1953
. Locate and cut the vent opening in the wall. For com-
bustible walls first frame in opening.
combustible Interior Walls: Cut a 11Z\x"H x 9Z\x" W
hole through the interior wall.
combustible exterior Walls: Cut a 9Z\x"H x 9Z\x"W
square hole through the exterior wall frame. Figure 16
Noncombustible Walls: Hole opening should be 7Z\x"
(190 mm) in diameter.
3. The center of the hole should align with the center line
of the horizontal rigid vent pipe end. Pipe shall always
run level or uphill on horizontal runs. Never run pipe
down hill. Figure 16
9Z\x"
(41 mm)
9Z\x"
(41 mm)
combustible Walls
7Z\x"
(190 mm)
Noncombustible Walls
Figure 16 -
Exterior Wall Framing Dimensions
4. Apply a bead of non-hardening mastic around the
outside edge of vent cap. Position the vent cap in the
VO584-100
center of hole on the exterior wall with the word "UP"
Vent Opening
on the vent cap facing up. Insure proper clearance of
1" to combustibles is maintained to the flue. Attach the
2/99 djt
vent cap with four wood screws supplied. Figure 17
Note: Replace the wood screws with appropriate
fasteners for stucco, brick, concrete, or other types
of siding.
A vinyl siding standoff (part #950) must be used with
the Simpson/Selkirk Horizontal Termination (part #985)
on vinyl, stucco or wood-clad exterior walls. Apply non-
hardening mastic around outside edge of the standoff
instead of the vent cap assembly. Figure 18
5. Slide the firestop over the vent pipe before connecting
the horizontal run to the vent cap. Figure 19
6. The termination should overlap the flue a minimum of
1Z\v" Apply silicone to the outer pipe/termination connec-
tion. Fasten termination with screws provided.
7. Slide the firestop against the interior wall surface and
attach with screws. Figure 19
VeNtING INstAllAtIoN
54D0700
FP93