GREE ELECTRIC DC Inverter U-match Series, Руководство пользователя

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DC Inverter U-match Series Duct Type Unit
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(2) If the downward return air method is adopted, then install the
return air cover at the back of the unit after dismantling it.
(3) Connect the return duct to the return air inlet of indoor unit with
rivet, and the other side shall be connected to the return air
inlet. For the convenience of free height adjustment, canvas
duct can be made and reinforced with iron wire to a folding
shape.
(4) The noise of downward return air is obvious bigger than that of
rear return air. For downward return air, silencer and static
pressure carton shall be added to conduct noise reduction
treatment.
3.2.7.3 Installation of Air Supply Duct and Air Return Supply
Installation method shall be selected by entirely considering the
conditions of buildings, maintenance, etc., as is shown in the following
figure.
No 1 2 3 4
Name canvas duct air return duct air supply duct indoor unit