Step 2 Mount Template; Step 3 Size And Install Ductwork - GE ZV421 Installation Instructions Manual

STEP 2 MOUNT TEMPLATE

• Select the template for your hood size.
• Align the template with the marks on the ceiling and
tape in place.
– Be sure the template is oriented correctly,
with the front of the hood.
• Use a plumb to check to be sure the mounting
holes will provide parallel alignment with the
countertop below.
• Center punch all hole locations.
• Drill pilot holes in the 4 screw locations. Use a
3/16" bit and drill approximately 1-1/2" deep.
• Drive 4 Hex head wood screws (Screws A) into
the center of the ceiling joists and cross framing.
Leave a 1/4" gap to allow the screw head to
engage the keyhole slots on the support frames.
• Cut the 10-1/2" duct opening through the sheet
rock.

STEP 3 SIZE AND INSTALL DUCTWORK

• Measure from house duct flange to bottom of
support frame. Subtract 4-3/8" for clearance to the
bottom of the support frame.
• Cut the 10" duct length to size.
• Secure duct to house ducting with sheet metal screws.
• Seal all connections with duct tape.
• Attach the duct collar loosely, about 1" from the bottom
of the duct using Screws B.
Installation Instructions
Screws A
House
Duct
Duct
Collar
Screws B
13
1/4" Gap
Duct
Length
Duct
4-3/8" Clearance
to Bottom of Frame