Submittal Sheet

Page 4
INSTALLATION OF INLET VENT TERMINATION
1. Cut a 4-1/4” diameter hole through the sidewall of the building.
2. Slide the inlet vent pipe through the hole and fasten to the wall with appropriate fasteners. Seal
the edges of the mounting plate with a silicone sealant or equivalent.
INSTALLATION OF DUCT WORK
1. Duct length distance, a maximum of 30
linear feet of standard duct pipe and two (2)
90° elbows. Subtract 7 feet from the
maximum linear feet for every 90° elbow
added. Maximum linear footage will be
less for flex duct. Consult flex duct
manufacturer for equivalent lengths.
Longer pipe lengths require the use of a larger pipe between the VRV and the intake hood. It also
requires the use of a vent pipe increaser at the VRV and a reducer at the intake hood.
2. Route the duct work from the VRV tee to the inlet vent termination with as minimum a number of
elbows as possible.
3. Secure and support the duct work for the design and weight of the material used, to prevent
physical damage and separation of joints. For guidelines refer to recognized national building
codes or according to any local codes.
4. To reduce uncontrolled air leakage into the duct, tape all joints and seams using standard duct
tape.
NOTE: To prevent sweating on the outside of the duct, when operating in areas that have -10°F or
below design temperatures, insulate the duct work at least 10 feet from the inlet vent termination.
OPERATION: AIR ADJUSTMENT
1. Adjust the air adjustment knob on the side of the
Furnace Boot™ (See Table 1) to rough air setting.
2. Start the burner and adjust the air control as
needed to achieve the required CO2 and smoke
levels. Set over fire draft to appliance
manufacturers’ specifications (typically -.02” of
water). Secure air control knob with indicator
bracket. If draft levels are not obtainable or
controllable, use standard industry methods to
control the draft or call the Field Controls Tech Line
at 1-800-742-8368 for more information.
3. Next, adjust the VRV gate by screwing the adjustment weight in until the VRV gate is just closed.
4. Re-check the burners operation and adjust accordingly.
5. Lock the adjustment weight in position by tightening the hex nut on the VRV gate.
Pipe
Diameter
Maximum Linear
Feet
Feet/Elbow*
5” 60’ 9’
6” 90’ 11’
*Subtract footage from the maximum linear feet for every 90° elbow
P/N 46381400 REV A 6/00
Table 1
ROUGH AIR SETTING
GPH Knob Setting
.75 25°
1.00 60°
1.50 160°