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SIDEWALL VENT HOOD INSTALLATION
1. Use the inside wall plate as a template to mark
the hole location. Cut a hole 1" larger than
the marked hole to facilitate easy installation
(See Figure 4)
2. Center vent hood through the hole from outside.
Fasten the vent hood to the outside wall with the
appropriate type of mounting screws.
3. Fasten the wall end plate to the inside wall with
the appropriate type of mounting screws. NOTE:
Apply sealant to the outside mounting plate of
the vent hood to prevent leakage.
4. Connect the venter outlet or a properly sized section of vent pipe onto the inner pipe of the vent hood. Fasten
the connection with three sheet metal screws or equivalent fastening method.
5. Seal the vent hood inlet connection and any other vent pipe joints on the outlet side of the venter with an
approved high temperature silicone adhesive sealant or equivalent material.
INSTALLATION OF POWER VENTER
CAUTION: Failure to install, maintain and/or operate the power venting system in accordance with manufacturer's
instructions will result in conditions which may produce bodily injury and/or property damage.
1. Remove power venter from box and inspect unit for damage. If the carton has been crushed or mutilated,
check unit very carefully for damage. Rotate venter wheel to ensure that the motor and venter wheel
rotate freely. DO NOT install if any damage is apparent. Refer to unit sizing chart to check proper venting
sizing.
2. Location of the termination of the venting system should be installed in accordance with the National Fuel
Gas Code, ANSI Z233.1, manufacturer's recommendations, and/or local codes which are applicable. See the
following requirements or refer to Diagram A for typical locations.
a. The exit termination of mechanical draft systems shall not be less than 7' above grade when located
adjacent to public walkways.
b. A venting system shall terminate at least 3' above any forced air inlet located within 10'.
c. The venting system of other than a direct vent appliance shall terminate at least 4' below, 4'
horizontally from, or 1' above any door, window, or gravity air inlet into the building.
d. The vent termination of a direct vent appliance with an input of 50,000 BTU/HR or less, shall be
located at least 9" from any opening through which vented gases could enter the building. With an
input over 50,000 BTU/HR, a 12" termination clearance shall be required.
e. The vent termination point shall not be installed closer than 3' from an inside corner of an
L-shaped structure.
f. The vent termination should not be mounted directly above or within 3' horizontally from an oil tank
vent or gas meter.
g. The bottom of the vent terminal shall be located at least 12" above fi nished grade.
8. Air fl ow adjustment MUST be made to ensure appliance effi
ciency. This should be done at the appliance
exhaust outlet with a velocity meter, draft gauge or by the “match test procedure”. The match test is in
accordance with National Fuel Gas Code A.N.S.I.Z223.1, Section 8.6.
9. On heating appliances not equipped with a draft hood, a barometric draft control MUST be installed to
regulate proper air fl ow and fl uctuations in the system’s air fl ow during operation. Fluctuations can come
from wind loads on the outlet of the venter, house depressurization during windy days, and the diff erent
house ventilation requirements between summer and winter operation. Use a Field Controls Type MG-1
Barometric Draft Control. Gas-fi red draft induced systems should have a single-acting or double-acting
barometric draft control installed.
Figure 4
P/N 46246300 Rev M 04/20
NOTE: If mounting the power venter through a combustable wall material, a minimum clearance of 1/2”
must be maintained between the venter outerpipe and combustible materials.
