Vertical Through-The-Roof Installation - Majestic 300DVBNV7 Installation And Operation Instructions Manual

DVB7 Series Direct Vent Gas Fireplace
Max.Height
40' (1.. m)
Min. Height
8' (.4 m)
Max.Height
40' (1.. m)
Min. Height
8' (.4 m)
FP1183a
1 + 2 + 3 + 4 = 270°
1
2
3
4
Figure 35 -
Maximum Elbow Usage
•
7DVCS supports offsets. Figure 37. This application
will require that you first determine the roof pitch and
FP1179
use the appropriate starter kit. (Refer to Venting Com-
max bends
ponents List)
•
The maximum angular variation allowed in the system
is 70°. Figure 35
•
For the minimum height of the vent above the highest
point of penetration through the roof refer to Page 23,
Figure 39.

Max. 10' (3 m)
Support Straps
Every 3' (914 mm)
Max. 10' (3 m)
Figure 34 -
Support Straps for
Horizontal Runs
1
2
3
4
FP1179
VeRtICAl thRouGh-the-RooF
INStAllAtIoN
Note: For all top vent vertical through-the-roof installa-
tions, install the supplied cross-bar flue restrictor onto the
top edge of the firebox flue adapter. Figure 36
1. Locate your fireplace.
. Plumb to center of the
(4") flue collar from ceiling
above and mark position.
3. Cut opening equal to 9C\v" x
9C\v" (48 x 48 mm).
4. Proceed to plumb for addi-
tional openings through the
roof. In all cases, the open-
ing must provide a mini-
mum of 1 inch clearance to
the vent pipe, i.e., the hole
must be at least 9C\v" x 9C\v"
(48 x 48 mm).
5. Place fireplace into position.
6. Place firestop(s) or Attic Insulation Shield into position
and secure. Figure 37
Attic Insulation
Shield
(7DV1AIS)
upper Floor
Ceiling Installation
Joist
Nails (4)
Figure 37 -
Place Firestop Spacer(s) and Secure
7. Install roof support (Figure 38) and roof flashing mak-
FP1029
ing sure upper flange is below the shingles. Figure 40
attic insulation shield
8. Install appropriate pipe sections until the venting is
firestop spacers
above the flashing. Figure 40
1/28/00 djt
9. Install storm collar and seal around the pipe.
VeNtING INStAllAtIoN
FP304
Figure 36 -
Vertical Through-the-Roof
FP2304
Restrictor
CDV7 top restrictor
3/09
11"
(79 mm)
FP109
Firestop
Spacer
54D7051