Heatilator C40 Installation Manual page 20

Fan Housing
1/2 in. (13mm)
clearance to
combustibles
must be
maintained.
Figure 3.16
Secure B-Vent to Fan Housing
with sheet metal screws
Return Air Grille
Install with Louvers
pointed down
Figure 3.17
20
Heatilator • C40 Constitution • 480-2340 Installation Manual • Rev B 01-29-13
2 x 4 Wall
2 x 4 wall
Sheet Rock
Bracket
Can rotate
o
180
Securely Twist
Lock B-Vent to
Adapter
NOTICE: Secure the duct so that clearance to the fi re-
place outer wrap is maintained. Tape all seams with alumi-
num tape 1-1/4 in. (32 mm) minimum width or as specifi ed
by local codes.)
• Seal all the way around the inside of the return air grille to
prevent hot air being drawn back into the venting system
using gasketing supplied with the kit. Leave 1/4 in. (6
mm) clearance from all four outer edges. Trim excess
gasketing. See Figure 3.18.
Seal grille using gasketing supplied with the kit
Leave 1/4" (6mm) clearance
from all 4 outer edges
Figure 3.18
• Install the variable speed wall rheostat (with setting on
"OFF") in a convenient location. This switch will control
the Heat-Zone fan operation.
• Remove the junction box. Wire 110 VAC service TO
the wall rheostat and FROM the wall rheostat to the
fan junction box. Use wire nuts to secure the 110 VAC
service wires to the hot (black) and neutral (white) fan
wires and screw the 110 VAC ground wire to the junction
box. See Figure 3.19.
• Secure the return air grille to the fan housing making
sure it is fl ush. The grille must be installed with the
louvers pointing down.
NOTICE: DO NOT USE ADJUSTABLE REGISTERS.
Wire Clamp
Junction Box Removed
Figure 3.16
Junction Box
White
Wire Nuts