Installation Instructions Exterior-Mounted Vent Motor; Venting Methods - KitchenAid KIRD862VSS Installation Instructions And Use & Care Manual

EXTERIOR-MOUNTED VENT MOTOR
CAUTION: To reduce the risk of fire and electrical shock,
install the downdraft only with remote blower systems
that are sold by Whirlpool Corporation. Model numbers
UXI0600DYS (600 cfm) and UXI01200DYS (1200 cfm).
Determine which venting method is best for your application.
Vent system can terminate through the wall or roof. A wall cap
or roof cap is required.
NOTES:
Venting through a concrete slab is not recommended.
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The in-line blower motor system must be placed in
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an enclosed area and can be located in a utility room,
basement, crawl space, or attic. Observe all governing
codes and ordinances.
10" (25.4 cm) round vent duct is required for connections to
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the retractable downdraft vent system outlet cover and the
in-line blower motor inlet and outlet covers. 10" (25.4 cm)
round vent duct is recommended for the retractable
downdraft vent system with in-line blower motor system.
Transitioning to different size ducting will reduce the
efficiency of the retractable downdraft vent system.
Island Location—
Front Vent
To attic
installed in-line
blower motor system
To basement, crawlspace
or utility room installed
in-line blower motor system
INSTALLATION INSTRUCTIONS

Venting Methods

Island Location—Rear Vent
To basement, crawlspace
or utility room installed
in-line blower motor system
To attic
installed in-line
blower motor system
NOTE: Exterior-mounted vent motor installations require
an approved in-line blower motor system. Model numbers
UXI0600DYS (600 cfm) and UXI1200DYS (1200 cfm) are
available from your dealer or authorized parts supplier. See
"Blower motor system" in the "Accessories" section.
Built-In Cabinet Locations
To attic
installed in-line
blower motor system
Calculating Vent System Length
It is recommended that you use round vent instead of rectangular
vent, especially if elbows are required. If rectangular vent is
required, it should be transitioned to 10" (25.4 cm) round vent
as soon as possible.
Maximum Length of Vent System
Vent
10" (25.4 cm) round
To calculate the length of the system you need, add the
equivalent feet (meters) for each vent piece used in the system.
Vent Piece
45° elbow
90° elbow
The maximum equivalent vent lengths of 10" (25.4 cm) round
vents - 60 ft (18.3 m).
2 - 90° elbow
10 ft (3 m) elbows
Length of 10" (25.4 cm) system
NOTE: The exterior-mounted vent motor requires a separate
wiring cable that should be installed at the same time the vent
work is installed.
To basement, crawlspace
or utility room installed
in-line blower motor system
Length
60 ft (18.3 m)
6" (15.2 cm) Round
2.5 ft
(0.8 m)
5.0 ft
(1.5 m)
= 10.0 ft (3 m)
= 10.0 ft (3 m)
= 20 ft (6 m)
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