8
Multi Variable Air Conditioners Ducted Type Indoor Unit
3.8 Type and dimension of the return air and the air supply vent
3.9 Installation of the return air pipe
A. The rear back air type is adopted for the unit when the unit leaves the factory, and the back air cover is
installed at the bottom as shown below.
B. When the button return air vent is needed to be adopted, change the position of the rectangle ange and
the back air cover.
Ractangle flange
Rear return air
Button return air
Return air cover
C. Connect the return air pipe on the return air vent of the indoor unit by rivets, and connect the other
terminal to the return air vent. In order to adjust the weight conveniently, pucker a canvas air pipe, and
strengthen it with 8# iron thread.
★
Installation type can be selected according to the overall plans and all factors into the conditions of the
building and maintenance, as shown in g.8a, and g.8b.
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