INVENTOR u-match on/off, Service Manual

Page: 57 / 163

U-MATCH AIR CONDITIONERS INSTALLATION
54
(a) (b)
Figure 1-1-13
3
˅
Installation of air return duct
‹
Square flanges at ex-factory shall be defaulted to installation at the back and the air return cover plate shall
be mounted at the lower, as shown in figure 1-1-14.
Figure 1-1-14
‹
If lower air return is demanded, the square flange and the air return cover plate should be exchanged in their
respective position.
‹
The air return duct shall be connected to the air return inlet on the indoor unit with rivets, and the other end
of the air return duct is connected to an air return window. To freely adjust the height, a section of canvas
duct can be fabricated and reinforced by
˔ʿ
iron wires in the folding shape. A proper installation method
shall be selected by taking into overall consideration of building and maintenance conditions.
Round air duct