Monessen Hearth CDVR33N/PV7 User Manual

Page of 68
CDVSC7 & CDV7 Series Gas Fireplace
69D3011
5
  For the minimum height of the vent above the highest 
point of penetration through the roof refer to Figure 38, 
Page 6.
Max. Height 40’ (1. m)
Min. Height 8’ (.4 m)
Max. 10’ (3 m)
Support Straps 
Every 3’ (.9 m)
Max. 
Height 40’ (1. m)
Min. 
Height 8’ (.4 m)
Max. 10’ (3 m)
FP1183
Figure 33 - 
Support Straps for 
Horizontal Runs
1
2
3
4
1
2
3
4
FP1179
Figure 34 - 
Maximum Elbow Usage
1 +  + 3 + 4 = 70°
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 35
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 
opening  must  provide 
a  minimum  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 36
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 36 - 
Place Firestop Spacer(s) and Secure
VenTInG InSTallaTIon     
FP2304
CDV7 top restrictor
3/09
Figure 35 - 
Vertical Through-the-Roof 
Restrictor
FP304
7.  Install roof support (Figure 37) and roof flashing mak-
ing sure upper flange is below the shingles. Figure 39
8.  Install  appropriate  pipe  sections  until  the  venting  is 
above the flashing. Figure 39