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Indoor Unit Insallation
13.2 INITIAL CHECK
•
Install the indoor unit with a proper clearance around it for
operation, maintenance working space and safety.
Min.
c
Obstacle
HP
a
b
0.4-1.5
150
100
2.0-4.0
100
200
•
Consider the air distribution from the indoor unit to the space
of the room, and select a suitable location so that uniform air
temperature in the room can be obtained.
•
Avoid obstacles such as electric light, partition which may
hamper the air inlet or the air outlet flow.
•
In case of using wireless remote controller, do not install the
indoor unit within approximately 1 meter from electronic type
lighting in order to receive the signal correctly.
•
Check to ensure that the ceiling has a sufficient strength
to hang the indoor unit. If the strength is insufficient, the
vibration or noise may occur during the operation.
•
Check whether the wall is vertical and flat.
•
Avoid the installation place such as near a door or ceiling
where the indoor unit may contact external high humidity.
Otherwise, dew may occur and drop.
•
Avoid installing the indoor unit where the direct airflow blows
from the air outlet to the temperature detecting devices such
an alarm device or a control device. It may cause a failure of
an alarm device or a control device.
•
UTOPIA Series: The combination for simultaneous
operation of indoor units are installed in a same room and
required to operate with equal conditions. In the case of
these combination indoor unit types, if each indoor unit is
partitioned by a wall, furniture or a curtain, etc, it may cause
an operation failure. In addition, in the case of rearranging
furniture or remodelling an interior after the installation, pay
attention to effects for indoor units combination operation.
•
Install the indoor unit as high as possible. If it is installed at
lower position, the air tends to stagnate downward during the
cooling operation. Additionally, the air may flow directly to a
person so that may be felt the discomfort.
10
PMML0552 rev.1 - 02/2021 - A10635790A
Unit: mm
Min
b
Floor
c
d
e
100
1000
2300
100
1000
2300
Horizontal air flow
•
Do not install flammable parts in the service space for the
indoor unit.
•
Do not install the indoor unit in a machinery shop or kitchen
where vapor from oil or its mist flows to the indoor unit. The
oil will deposit on the heat exchanger, thereby reducing the
indoor unit performance, and may deform and in the worst
case, break the plastic parts of the indoor unit.
•
Pay attention to the following points when the indoor unit
is installed in a hospital or other facilities where there are
electromagnetic waves from medical equipment, etc.
Do not install the indoor unit where the electromagnetic
-
wave is directly radiated to the electrical control box,
remote control cable or remote control switch.
Install the indoor unit and components as far as practical
-
or at least 3 meters from the electromagnetic wave
radiator.
-
Prepare a steel box and install the remote control switch
in it. Prepare a steel conduit tube and wire the remote
control cable in it. Then, connect the ground wire with the
box and the tube.
-
Install a noise filter when the power supply emits harmful
noises.
•
To avoid any corrosive action to the heat exchangers, do not
install the indoor unit in an acid or alkaline environment.
Vertical air flow
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