Universal Metal Industries UL2836 - Manual (Page 5)

Item No. 0AL00-UL-001 Revised 10/05/04 Copyright (C) 2004, Universal Metal Industries, Inc. Page 5
PART 3 Determining Direction of Vent and Securing the Hood
MOUNTING HOLES
Because the Air-O ® Ultra Series rangehood was designed for all applications, no mounting holes have been pre-
drilled. This allows the hood (or liner) to be attached in the areas of the cabinet or wood hood canopy that have
proper wood frame support. The hood should be attached to the wood framing through the top. Remove the filters.
Mark and drill screw holes through the hood as required. Secure the hood by driving screws (provided by others)
through the screw holes. NOTE: DRILLING THROUGH STAINLESS STEEL REQUIRES TITANIUM DRILL BITS.
BE CAREFUL NOT TO DRILL THROUGH THE UL LABEL OR INTO THE HOOD’S ELECTRICAL COMPONENTS.
DETERMINING THE DIRECTION OF VENTING (TOP, REAR AND RECIRCULATE):
TOP VENT BACK VENT RECIRCULATION
Top Vent: Range hoods are shipped with the motor and blower installed to vent out the top. However, the vent
covers in the rear vent opening and recirculation vent opening must be taped on all edges to prevent air leaks and
vibration noise. The vent covers are not taped when shipped from the factory because the direction of venting may
be changed. Vent covers placed on the inside of the hood should be neatly foil taped. Duct covers placed on the
outside of the hood can be duct taped. If the rear vent and recirculation vent covers are not already in place,
slightly bow the vent cover and place the side slots over both sides of the vent openings. Tightly fasten the motor &
blower housing to the studs on the hood top. When installed correctly, the motor & blower housing will be
approximately ½” from the back wall of the hood.
Back Vent: Unplug the electrical connection and remove the motor & blower housing from the hood.
IMPORTANT: Remove the vent cover from the rear vent opening. Slightly bow the vent cover removed from
the rear vent opening and place the side slots over both sides of the top vent opening. The vent cover can be
placed on the inside or outside of the hood. We recommend the inside. Vent covers placed on the inside of the
hood should be neatly foil taped. Vent covers placed on the outside of the hood can be duct taped. Vent covers
must be taped on all edges to prevent air leaks and vibration noise. Do not re-use the pieces of duct tape shipped
with the hood. Reposition the blower housing to vent out the back of the hood and align the housing mounting
brackets so that the housing tightly fits against the back wall. Securely fasten the motor & blower housing to the
studs on the hood top. Reconnect the electrical connectors.
Recirculation: Unplug the electrical connection and remove the motor & blower housing from the hood.
IMPORTANT: Remove the vent cover from the front vent opening. Slightly bow the vent cover removed from
the front vent opening and place the side slots over both sides of the top vent opening. The vent cover can be
placed on the inside or outside of the hood. We recommend the inside. Vent covers placed on the inside of the
hood should be neatly foil taped. Vent covers placed on the outside of the hood can be duct taped. Vent covers
must be taped on all edges to prevent air leaks and vibration noise. Do not re-use the pieces of duct tape shipped
with the hood. Reposition the blower housing to vent out the front of the hood and align the housing mounting
brackets so that the housing tightly fits against the front wall. Securely fasten the motor & blower housing to the
studs on the hood top. Reconnect the electrical connectors.
CONNECTING TO THE VENT PIPE:
The hood is equipped with a metal damper. Attach the damper to the hood top or back side of the hood with at
least two screws. Duct tape the edges to the hood. Be careful to not damage or tape over the damper blade.
When connected to the back of the hood (horziontal ventilation), be sure the damper swings open from the bottom
side; the hinge will be on the top. Otherwise, it will NOT close when the motor is off.