445
Fresh Air Type
Indoor Unit
(3) If necessary, make a hole for installation and inspection on the ceiling. (used for the situation with a ceiling)
■ For the size of the inspection hole on the ceiling, please refer to the above drawing.
■ Before installation, nish all the preparations for all piping connected to indoor units (refrigerant, Water drainage)
and wiring (connection line of the wired control, connection line between indoor units and outdoor unit) so that
they can be connected with indoor units after installation.
■ For the inspection hole, the ceiling might be reinforced to keep the evenness of the ceiling and avoid the vibration
of the ceiling. For details, please consult the construction contractor.
(4) Install the suspender (M10 bolts)
In order to support the weight of the unit, use barb bolts in the situation
with a ceiling. In the situation with the new ceiling, use inlaid bolts,
embedded bolts or other parts provided on site. Before proceeding the
installation, adjust the gap between the bolt and the ceiling.
(5) Installation of Indoor Units
■ Fix the indoor unit with the hoisting stud. If necessary, the machine
can be hanged on the beam with bolts instead of the hoisting stud.
Note:
When the sizes of the master unit don't match the hole on the ceiling, regulate the slot on the hanging bracket.
(a) Adjust the level with a level meter or according to the following ways:
■ Make the adjustment as shown in the gure below.
Adjusting the level
(b) Unless it is regulated to the level position, faults or errors might occur for the oater switch.
AD482MPERA AD722MPERA, AD962MPERA
Notch grapping
Notch plug
Plug
Hoisting stud M10
Hoisting stud
Concrete
Make one side of piping a little lower
One side of piping
Water supply
1100
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