GE MONOGRAM ZV1050 Installation Instructions Manual page 9

STEP 1 CONTINUED
• Arrange cross-framing in the ceiling to suit
the existing structure. See examples.
– Secure each 2 x 4 block with at least four (4) #10
wood screws, 3" long (not supplied). Use 8 wood
screws total for the two supports.
• The cross-framing must be accurately aligned
to ensure correct positioning of the hood.
• The cross-framing must be level in all directions.
Check with a spirit level and adjust if necessary.
IMPORTANT: The ceiling structure must be capable of supporting
the weight of the hood (approximately 300 pounds) and any
inadvertent user contact loads. The hood support frame will
be supported by the 2 x 4 min. cross-framing.
Ductwork
• Use the shortest and straightest duct route possible.
For satisfactory performance, duct run should not
exceed 100-feet equivalent length for any duct
configuration.
• Refer to "Duct Fittings" chart to compute the
maximum permissible length for duct runs to
the outdoors.
• This vent hood must use 8" round duct. The 8" round
duct can transition to 3-1/4" x 12".
• Install the house ductwork to run horizontally
between ceiling joists or straight up through the roof.
Finish the Ceiling
• Finish the ceiling surface. Be sure to mark location
of the ceiling joists and cross-framing. Check to be
sure the ceiling is level; use shims, if necessary.
Installation Instructions
*Depending on available space.
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