Monessen Hearth HBDV400N/PV7 User Manual

Page of 64
HBDV7 Series Direct Vent Gas Fireplace
54D8000
VeNtING INStAllAtIoN
  7DVCS  supports  offsets.  Figure  39.  This  application 
will require that you first determine the roof pitch and 
use the appropriate starter kit. (Refer to Venting Com-
ponents List)
  The maximum angular variation allowed in the system 
is 70°. Figure 36
  For the minimum height of the vent above the highest 
point of penetration through the roof refer to Page 23, 
Figure 40.
Support Straps 
Every 3’ (914 mm)
Max.Height
 40’ (1.. m)
Min. Height 
8’ (.4 m)
Max. 10’ (3 m)
Max. 10’ (3 m)
Max.Height
 40’ (1.. m)
Min. Height 
8’ (.4 m)
FP1183a
Figure 35 - 
Support Straps for 
Horizontal Runs
1 + 2 + 3 + 4 = 270°
1
2
3
4
1
2
3
4
FP1179
max bends
FP1179
Figure 36 - 
Maximum Elbow Usage
VeRtICAl tHRouGH-tHe-RooF 
INStAllAtIoN
Note:  For  all  top  vent  vertical  through-the-roof  instal-
lations,  install  the  supplied  cross-bar  flue  restrictor,  part 
#69D3006 onto the top edge of the firebox flue adapter. 
Figure 37
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 38
FP2304
CDV7 top restrictor
3/09
Figure 37 - 
Vertical Through-the-Roof 
Restrictor
FP304
FP1029
attic insulation shield
firestop spacers
1/28/00   djt
Attic Insulation 
Shield
(7DV1AIS)
upper Floor
11”
(79 mm)
Ceiling Installation
Joist
Firestop 
Spacer
Nails (4)
FP109
Figure 38 - 
Place Firestop Spacer(s) and Secure
7.  Install roof support (Figure 39) and roof flashing mak-
ing sure upper flange is below the shingles. Figure 41
8.  Install  appropriate  pipe  sections  until  the  venting  is 
above the flashing. Figure 41
9.  Install storm collar and seal around the pipe.