Majestic Appliances Builder Direct Vent 36CDVXTRN - Manual (Page 21)

21
CDVX Series Direct Vent Gas Fireplace
20012253
CFM100
Firestop-Vertical
09/20/00
11"
11"
Joist
Joist
Firestop Spacer
Nails (4)
Upper Floor
Attic Insulation
Shield
Ceiling
Installation
CFM100
Fig. 38 Place firestop spacer(s) and secure.
If there is room above ceiling level,
firestop spacer must be installed on both
the bottom and the top side of the ceiling
joists. If an attic is above ceiling level a
7DVAIS (Attic Insulation Shield) must be
installed. (Fig. 38)
7. Install roof support (Fig. 39) and roof flashing making
sure upper flange is below the shingles. (Fig. 40)
8. Install appropriate pipe sections until the venting is
above the flashing. (Fig. 40)
9. Install storm collar and seal around the pipe.
10. Add additional vent lengths for proper height. (Fig
41)
TWL101a
Twist Lock Pipe
2/8/99 djt
3 #5 Sheet Metal
Screws per Joint
Storm Collar
TWL101a
Fig. 40 Roof flashing.
Sealant
FP1022
Typical Straight Up Installation
1/26/00 djt
50’
(15 m)
Storm Collar
Roof Flash-
ing
Vent
Termination
Roof
2’ Min.
Roof Support
Attic Insulation
Shield
Attic
Insulation
Joists
Joists
FP1022
Fig. 39 Typical straight-up installation.
Min.
2' (610 mm)
FP1185
Fig. 41 Minimum termination to roof clearance.
The enlarged ends of the vent section
always face down. (Fig. 37)