GE Monogram ZV1050 Installation Instructions Manual page 7

Installation Instructions
[STEP 11CONTINUED
• Arrange cross fl'aming 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" hmg (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 a(!just 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 bythe 2 x 4 min. cross framing.
2x 4 Min.
CrossFraming
0- Ii i
i i
Ceil _7-1/4_
Joist 11-1/4 '-_'_"
• Support
Frame
UpperHalf- Opening
OfSupport
Frame
'-Height
Adjustment
Slot
Ductwork
• Use the shortest and straightest duct route possible.
For satist, mtory pertormance, duct run should not
exceed 100 feet equivalent length tor any duct
configuration.
• Reter to "Duct Fittings" chart to compute the maxi-
mum permissible length for duct runs to the out-
doors.
• 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 surtace. Be sure to mark location
of the ceiling.joists and cross fl'aming. Check to be
sure the ceiling is level, use shims if necessary.
CeilingJoint
//
2x4
VentStraight Up
ThroughThe Ceiling
8"Round
Flat
Standing
*Vent Between
Ceiling Joists
*Depending on available space.