X
32
3-9. Duct for Fresh Air
●
There is a duct connection part on side of the indoor
unit. (Fig. 3-16)
●
An optional air-intake plenum (including duct connection
box and flange) can be attached to the indoor unit.
(1) Accessories
●
Check that the following parts are in the box when
unpacking.
(2) Installation
●
Installation steps (a) to (d) are the same for both the
CMB-GSJ80U and the CMB-GSJ140U. The figure
illustrates installation of air-intake plenum to the
indoor unit. (Fig. 3-17)
(a) Installing the air-intake plenum
●
Set the air-intake plenum to the indoor unit taking care
not to set it in the wrong direction. (Fig. 3-17)
●
Fasten the air-intake plenum with the accessory screws.
(M5 × L5 in., 4 pcs) (Fig. 3-17)
(b) Installing the duct connection box
●
Fasten the duct connection flange to the duct connec-
tion box with the accessory screws.
(M4 × L1/2 in., 4 pcs) (Fig. 3-18)
●
Put the duct connection box into the rectangular hole of
the air-intake plenum and fasten it to both sides of the
indoor unit and plenum with the accessory screws.
(M4 × L1/2 in., 3 pcs) (Fig. 3-18)
(c) Installing the indoor unit
●
Install the indoor unit to the ceiling. (Install the indoor
unit according to items 3-1 to 3-6.)
