AUKS AL-H18/4DR1(U), Service Manual

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AUKS DC Inverter 1 Drive1 50HZ R410A Four-way cassette
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pipeline fluently, and carefully observe the junction to ensure that there is no water leakage. If the unit
is installed in the newly built house, strongly recommend that this test taken before the ceiling
installation. Even it is the heating only unit, this test is unavoidable.
6.7 Panel installation
As to the MB12 panel please refer to the following picture, the panel has four hooks which attach to
corresponding hangers on the unit and the panel should be positioned using these first. The panel is then
fixed into position by four bolts which are accessed through the four corner panels on the grille.
Notes:
When installing please ensure that the position of swing motor is in accordance with the position of the
pipes of the unit.
6.8 Connect duct, fresh air ventilation
In order to meet different customers’ requirements and their different usage environment, 3hp and 5hp
indoor unit reserves one fresh air ventilation hole and four duct connection holes. The fresh air can be
introduced from outside or through duct.
◇
Fresh air ventilation: In the corner of the unit there is a circular fresh air connection hole, if users want
this feature, please cut down the circular metal sheet and connect it to the duct. Fresh air replacement
hole is connected to the return air inlet of the indoor unit, when in the process of operation due to the
negative pressure, the fresh air can be introduced from outside.
◇
Connect to duct: There are four rectangular connection holes on the four sides of the unit. If users what
to connect it to the duct, please close the outlet to the side which needs connecting to the duct as well
as cut down the rectangular metal sheet.