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4 HOOD EXHAUST DUCT
When the hood is vented to the outside, a hood exhaust
duct is required. All ductwork must be metal; absolutely do
not use plastic duct. Check that all connections are made
securely. Please read the following carefully:
EXHAUST CONNECTION: The hood exhaust has been
designed to connect to a standard 3
duct. If round duct is required, a rectangular-to-round
adapter must be used.
REAR EXHAUST: If a rear or horizontal exhaust is to be used,
care should be taken to align the exhaust with the space
between the studs, or wall should be prepared at the time it
is constructed by leaving enough space between wall studs
to accommodate exhaust.
MAXIMUM DUCT LENGTH: For satisfactory air movement,
the total duct length of 3
diameter round duct should not exceed 140 feet.
Elbows, adapters, wall, roof caps, etc. present additional
resistance to air flow and are equivalent to a section of
straight duct which is longer than their actual physical
size. When calculating the total length, add the equivalent
lengths of all transitions and adapters plus the length of all
straight duct sections. Figure 4 shows the approximate feet
of equivalent length of some typical ductwork parts.
Use the values in parentheses for calculating air flow
resistance equivalent, which should total less than 140 feet.
1.TINSKB278MRR0_Viking_VMOH330SS_OTR_Install_E,S,F.indd 4
/
1
" x 10" rectangular
4
/
1
" x 10" rectangular or 6"
4
Figure 4
5 TOOLS RECOMMENDED
FOR INSTALLATION
• Phillips Screwdriver
• Electric Drill
• Scissors
• Saw to cut exhaust
opening (if needed)
1
• 1
/
" Wood Bit or Metal
2
Hole Cutter (if metal
cabinet is used)
6 INSTALLATION
HARDWARE
The following is a list of parts you may need for installing
your Built-In Microwave Hood. You will find the installation
hardware contained in a packet with the unit. Check to
make sure you have all these parts. Use this time to become
familiar with each piece.
Item
Part Name & Code
Lag screws (
1
/
" x 1.8")
4
1
9KC7117604511
Toggle Bolts and Nuts
2
9KC3516003200, 9KC3516003300
Cabinet Mounting Bolts
3
9KC7045607011
Washer (
3
/
") 9KC3516003100
4
4
Nylon Grommet (for metal cabinets)
5
9KC3517503200
Damper 9KC3515400500
6
Mounting Plate 9KC351060009300
7
Figure 5
E 4
• Pencil
• Measure
• Tape
•
1
/
",
5
/
" and
3
/
"
2
8
32
Drill Bits
• Protective Drop Cloth
for product and range—
you may also use carton
for protection
Qty
2
3
/
x 2.7"
16"
2
1
1
/
" x 3
/
"
4
8
2
2
1
1
1
1/31/19 11:07 AM
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