Rough-In Instructions - COZY W255G Installation And Operating Instructions Manual

WARNING: Do not bypass the blocked flue switch. To do so could expose
Fig. C
10' or Less
2' Min.
Chimney
Fig. D-1
Switch/
Gas
Control
Wire
Fig. E: Gas Supply
To Heater Gas
Control Valve
Drip Leg

ROUGH-IN INSTRUCTIONS

the consumer to property damage, personal injury or possible death.
Height above
More than 10'
any roof surface
within 10'
10'
horizontally
2' Min.
3' Min.
Chimney
3' Min.
Fig. D-2
Man. Reset
Blocked
Flue Switch
Draft
Diverter
Relief
Opening
Combustion
Chamber
Manual Cut-Off-Valve
1/8" NPT
Pressure Tap
NOTE: Maximum wall thickness for a dual wall (W505,
W506) installation is 5-3/8".
STEP 1.
Attach the base plate (purchased with the vent pipe) to
the header plate using two No. 8 sheet-metal screws
through the pre-punched holes. The heater may not
vent properly without a base plate to anchor and seal
the vent system. See Figure F (below).
Fig. F
Installation of B-W Gas Vent for
one story buildings or for
first floor of multi-story
buildings.
Reset
Button
STEP 2.
Cut out an opening between the studs of 14-3/8" x
66-1/2" above the floor plate. Embed the rear flange of
the channel on top of header into either the drywall or
the plastered wall. This provides part of the required fire
stop. Square up and nail the header in place with the top
front of header located 65-3/4" above floor plate.
(See arrow on right side of header and
Figures G-1, G-2 and G-3 on Page 8).
Gas
Supply
STEP 3.
Line
Rough in ½" gas supply on center line of left stud either
4" above top of floor plate or 4" to right of left stud
through floor plate.
(See Figure G-1 on Page 8).
page 7
Ceiling plate spacers to
center B-W gas vent in
stud space - nail securely
Plate cut away for full
width of stud space to
Studs on 16" centers.
Sheet metal screw base plate to header.
Use manufacturer's method of
fastening pipe to base plate.
Header plate of vented wall furnace.
(also acts as firestop)
at both ends.
provide ventilation.
84502-C