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10
For the Installer
6.4 INSTALLING DUAL EXTERIOR HOOD USING TANDEM®* TRANSITION KIT (OPTIONAL)
If desired, a dual exterior hood can be used instead of 2 exterior hoods to connect
inulated ducts. The joist opening needed to install the Tandem
®
transition is 9¾”
minimum. The maximum height of the Tandem
®
transition is 8¾”.
To connect 4” insulated flexible ducts to the 5” oval ends of the Tandem
®
transition
(Exhaust air to outside and Fresh air from outside), connect an adapter to the Tandem
®
transition (not included) as follows.
For each duct connection:
1. Slightly squeeze a section of 4” round metal duct, at least 8” long, to insert it into
the oval opening of the Tandem
®
transition and push it all the way in.
2. Using silicon, seal the joint between the outside of the metal duct and Tandem
®
transition, and allow silicon to dry completely.
3. From this point on, follow the instructions included with the Tandem
®
transition kit
(part no. 14690).
*Patented.
VJ0118A
VJ0119
CAUTION
When connecting insulated flexible duct to the Tandem
®
transition,
pull the interior flexible duct over the adapter all the way to the silicon
joint and secure using a tie wrap. Then pull the insulation over the
joint, making sure that no part is left without insulation.
6.3 INSTALLING THE EXTERIOR HOODS
Refer to the illustration aside to connect the insulated duct to the hoods.
Place a “FRESH AIR INTAKE” sticker on corresponding hood. An “Anti-
Gust Intake Hood” should be installed in regions where a lot of snow is
expected to fall.
Make sure that both hoods are at least 18 inches above the
ground and that the intake hood is at least 6 feet (1.8m)
away from any of the following:
• Exhaust hood
• Dryer exhaust, high efficiency furnace vent, central
vacuum vent
• Gas meter exhaust, gas barbecue-grill
• Any exhaust from a combustion source
• Garbage bin and any other source of contamination
⚠WARNING
VD0028
EXHAUST
HOOD
INTAKE
HOOD
18”
(457 MM)
18”
(457 MM)
6” ø
(152 MM)
6’
(1.8 M)
6’
(1.8 M)
18”
(457 MM)
OPTIONAL
DUCT LOCATION
TAPE AND DUCT TIE
CAULKING
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