11
DUCT INSTALLATION
Mastic or approved
foil tape
Attach to 4” adapter
Attach to 6” adapter
or
To avoid transmission of
vibrations, it is recommended
to use a 6-inch section of
flexible duct to connect
rigid ducts.
Pull back the insulation
Pull over the
insulation
OA
EA
SA
RA
Mastic or approved
foil tape
Tie wrap
6” adapter
4” adapter
Attach to 4” adapter
(1)
(3)
(2)
or
Attach to 6” adapter
(4)
Install insulated ducts to the OA and EA adapter.
1
2
Attach duct (rigid galvanized duct, etc.) to the SA and RA adapter.
Please refer to the local codes for detail.
The intake side duct must be
connected to the outside and at least
6 ft (1.8 m) away from the exhaust of
appliances such as furnace, dryer, fuel
burning appliances, etc.
If separate hoods are used, locate them at least 10 ft (3 m) apart.
Seal hoods with caulk or other similar material.
CAUTION
10’ (3 m)
Exhaust hood
with backdraft
flap (s)
Intake hood
with bird screen
(No backdraft
flap (s))
Note
Install outdoor hood and connect with insulated ducts.
3
Tie wrap
Mastic or approved
foil tape
