DC INVERTER U-MATCH AIR CONDITIONERS INSTALLATION
(a) (b)
Figure 1-1-13
3 Installation of return air duct
The square flange is mounted on rear section when it is shipped. The return air inlet cover plate is
mounted beneath, as shown in Fig. 1-1-14.
Figure 1-1-14
If down return air inlet is to be used, just change the position between square flange and cover plate
of return air inlet.
Rivet the return air duct to the return air inlet of indoor unit and connect another end to return air
window. For free adjustment of the height, you may fabricate a section of canvas air duct and
reinforce with 8# iron wire in folded form. You may select the installation methods in overall
consideration of the building and maintenance conditions, as shown in Fig. 1-1-15.
Round air duct
Down return air inlet
Down return air inlet
Cover plate of return air inlet
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