GE Monogram ZV42I Installation Instructions Manual page 13

CONTINUED
• 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
assure 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 cross framing.
Ductwork
• Use the shortest and straightest duct route possible.
For satisfactory performance, duct run should not
exceed 150 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 10" round rigid duct.
• 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.
49-80209-5
Installation Instructions
2x 4 Min.
Cross Framing
Ceiling
Joist
8-5/8"
10"
Duct
Vent Straight Up
Through The Ceiling
17"
(54" Hood
12-3/4"
(42" Hood
Height
Adjustment
Screw Hole
Ceiling Joint
2x4
13