Heatilator CRAVE4836 Installation Manual page 27

Exhaust restrictor Instructions
Exhaust restrictors are recommended for these vertically
terminated products which have excessive draft. Exhaust
restrictors will compensate for high draft, and restore vi-
sual fl ame height. If the vent confi guration has a total ver-
tical of 20-50 feet, an exhaust restrictor may be needed.
The exhaust restrictor can be located in the appliance
manual bag.
Exhaust restrictor: CRAVE4836, CRAVE6048,
CRAVE7260, CRAVE8472
1. Locate the two pilot holes in the inside fi rebox cham-
ber as shown in Figure 4.9.
2. Break the fl ue restrictor into two pieces. Do this by
bending the part back and forth until it breaks. See
Figure 4.10.
3. The setting for
CRAVE7260 and CRAVE8472 is 2-2. Align the holes
marked "2" on the numbered exhaust restrictor piece
with the hole on the other exhaust restrictor piece.
See Figure 4.11. Align the exhaust restrictor pieces
with the pilot holes in the inner fi rebox chamber. Use
two 1/2 inch self-piercing screws to secure vent re-
strictor to fi rebox heat shield.
4. In some applications, such as those where the fi re-
place is elevated off the fl oor, the exhaust restrictor
may be painted, but painting is not required.
NOTICE: Before painting, contact your dealer for
information on the appropriate high temperature paint.
Exhaust restrictor: CRAVE4836ST, CRAVE6048ST,
CRAVE7260ST, CRAVE8472ST
1. Break the fl ue restrictor into two pieces. Do this by
bending the part back and forth until it breaks. See
Figure 4.10.
Note: The CRAVE4836ST,
CRAVE7260ST, and CRAVE8472ST do not have pilot
holes for the exhaust restrictor in the fi rebox chamber.
2. The setting for CRAVE4836ST, CRAVE6048ST,
CRAVE7260ST, and CRAVE8472ST is a 2.5 inch
setting, or 2-2. Align the holes marked "2" on the
numbered exhaust restrictor piece with the hole on
the other exhaust restrictor piece. See Figure 4.11.
Center the exhaust restrictor on the vent and secure
in place with two 1/2 inch self-piercing screws.
3. In some applications, such as those where the fi re-
place is elevated off the fl oor, the exhaust restrictor
may be painted, but painting is not required.
NOTICE: Before painting, contact your dealer for
information on the appropriate high temperature paint.
Heatilator • CRAVE4836/ST, CRAVE6048/ST, CRAVE7260/ST, CRAVE8472/ST Installation Manual • 2301-970 Rev. Q • 9/15
CRAVE4836, CRAVE6048,
CRAVE6048ST,
PILOT
HOLES
EXHAUST
RESTRICTOR
Figure 4.9 Exhaust Restrictor
BREAK
HERE
Figure 4.10 Break the Exhaust Restrictor
Figure 4.11 Set the Exhaust Restrictor
1 2 3 4 5
SETTING
1 2 3 4 5
27