Heatilator RAVE32-IFT-B Installation Manual page 32

Top Vent - Vertical Termination - (continued)
Exhaust Restrictor Instructions
Exhaust restrictors are recommended for these verti-
cally terminated products which have excessive draft.
Exhaust restrictors will compensate for high draft, and
restore visual flame height. If the vent configuration has
a total vertical of 15-60 feet, an exhaust restrictor may
be needed. The exhaust restrictor can be located in the
appliance manual bag.
Exhaust Restrictor Installation
1. RAVE42-IFT-B/ RAVE36-IFT-B Only: Remove inner
heat shield by removing two wing nuts from top front
of heat shield and two screws that secure the heat
shield to back wall of fireplace. Retain heat shield and
fasteners.
2. ALL SIZES: Center the exhaust restrictor in the open
end of the exhaust outlet and secure through the
slots on the exhaust restrictor with the two 1/4 in.
self-tapping screws provided in the appliance manual
bag. See Figure 4.17.
3. RAVE42-IFT-B/ RAVE36-IFT-B Only: Reinstall shield
by securing it with the two wing nuts and two screws
previously removed in Step 1.
Note: Recommended air shutter settings are located in
Section 9.E.
Heatilator • RAVE32-IFT-B, RAVE36-IFT-B, RAVE42-IFT-B Installation Manual • 2619-983 Rev. U • 9/22
32
SCREWS
HEAT SHIELD
EXHAUST RESTRICTOR
INSTALLED SCREWS
Figure 4.17 Installing Restrictor
WING NUTS