COZY W255G Installation And Operating Instructions Manual page 8

Fig. G-1
ROUGH-IN
DIMENSIONS
4"
NOTE: For proper combustion, make sure units are
level, front to back and side to side.
Fig. G-2: Dry Wall
NOTE: Front panel must be in front of plaster ground
channel. Do not hang it over front of plaster ground.
Fig. G-3: Plaster Wall
NOTE: Front panel must be in front of plaster ground
channel. Do not hang it over front of plaster ground.
ROUGH-IN INSTRUCTIONS
*65 3 / "
4
1
14 / "
4 *This
Min.
measurement
must be taken
from top of
14 1 / "
2
floor plate
Max.
4"
Dry-Wall
B-W Type Vent
Screw
Front
Panel
Plaster
Ground
Dry-Wall
B-W Type Vent
Screw
Front
Panel
Plaster
Ground
STEP 4.
Remove double ceiling plate between studs. Install one
ceiling plate spacer across the cut out in ceiling plate.
Install vent pipe into position, be sure to lock bottom of
vent pipe into the base plate. Nail second ceiling plate
spacer in place. See Figure F (on page 7).
STEP 5.
If the vent continues through additional stories within the
2x4-stud space, then fire-stop-spacers must be installed
at the second and subsequent ceiling levels.
See Figure G-4 (below).
Fig. G-4
Installation of B-W gas vent
for each subsequent ceiling
or floor level of
multi-story buildings.
Fig. G-5: Vent Installation
Ceiling
Plate
Spacers
12' Min.
page 8
Firestop spacers
supplied by
manufacturer of
B-W gas vent.
Plate cut away to
provide passage
of B-W gas vent.
Nail firestop
spacer securely.
Listed Vent Top
2' Min.
Storm Collar
Roof Flashing
Ceiling
Plate
Spacers
Oval to Round
Listed "BW"
Vent Pipe
Base Plate
Ceiling
Plate
Header
Spacer
Plate
Lances
2 x 4
Wall Studs
Adapter
84502-C