7
INSTALLATION
Unit : inch (mm)
4.Install
Φ
6 inch ducts.
5.Set an square inspection hole
of 450 mm or more under the
maintenance board. (Fig.7)
6.Twist hand screw open maintenance board and pull out the sub-efficient filter,
fill in beginning time on sub-efficient filter, then install back. (Refer Fig.13~15 on P.10~11)
Square inspection hole
Square inspection hole
Ceiling
Ceiling
(1) Connect the circular duct (suggest using
the insulated flexible duct) to adaptor by
mastic or approved foil tape.
Hanger
Install the exterior duct with a declining
slope toward outer side at least 1/100.
Install the interior duct with a declining
slope toward inner side at least 1/100.
(Fig.6)
Note
Fiberglass insulation
Fig.7
17 3/4 (450)
1 5/8 (40)
>
1 1/4 (30)
17 3/4 (450)
Exterior duct
Interior duct Mastic or
approved foil
tape
Mastic or
approved foil
tape
Adaptor
Adaptor
Fig.6
Place/wrap insulation around duct and/or
fan in order to minimize possible
condensation buildup within the duct.
(Fig.6)