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4.2 Initial Check
To avoid any corrosive action to the heat
exchangers, do not install the indoor unit in
an acid or alkaline environment.
4.3 Installation
4.3.1 Opening of False Ceiling and Suspension Bolts
Install the indoor unit in a space for easy operation
and maintenance as shown in Fig. 4.1.
Provide a service access door near the unit
piping connection area on the ceiling.
Check to ensure that the ceiling is strong
enough to hang the indoor unit.
Check if the ceiling surface is flat for the air
panel installation.
(1) Select appropriate location and direction for installation
of indoor unit, and determine its location. Pay careful
attention to the space for the piping, wiring and
maintenance.
Fig. 4.1 Space around Indoor Unit
The indoor unit must be installed at an appropriate
location so that the indoor temperature can be evenly
distributed.
There should be no obstruction of air flow at the vent.
Select the installation location as follows:
(A) Minimum Space
(B) Down Slope
Pitch of Drain Pipe: 1/25~1/100
Do not install the indoor unit in a machinery shop
or kitchen where vapor from oil or its mist flows
to the indoor unit.
Once the oil deposits on the heat exchanger, it
may impair the performance of indoor unit and
cause damage to plastic parts therein.
Pay attention to the following points when the
indoor unit is installed in a hospital or other
facilities where there are electronic waves from
medical equipment, etc.
(A) Do not install the indoor unit where the
electromagnetic wave is directly radiated to the
electrical box, remote control cable or remote
control.
(B) Install the indoor unit and components as far as
practical or at least 9.8ft.(3m) from the
electromagnetic wave radiator.
(C) Install the remote control switch in an iron box.
Arrange the remote control cable in an iron
tube. Ground the iron box and iron tube.
(D) Install a noise filter when the power supply emits
harmful noises.
Fig. 4.2 Installation Location of Indoor Unit
Fig. 4.3 Opening of False Ceiling and Suspension
Bolts
(3) Ensure that the ceiling is horizontally level;
otherwise, proper drainage flow would be impossible.
(4
)
Strengthen the opening parts of the ceiling.
(5) Mount suspension bolts, as shown in the figure.
Drain Pipe
1/25~1/100 Down Slope
2
Piping Connection
Service Access
Door ≥ 2332.(mm)
Service Access
Door ≥ 2332.(450mm)
Piping Connection
Piping Connection
Service Access
Door ≥ 2332.(mm)
Distance from Wall Side
Service Space
Piping Connection
2232.(10~20 mm)
92.(260 mm)
22.(310 mm)
Indoor Unit Height in Ceiling
●
The figure on the right shows the sensing area of
motion detector when the motion detector in
panel is in service.
Motion detector
2.6ft.(0.8m) above the ground
Approx. 9.ft.(6m)
Approx. 28.9ft.(m)
a
8.2ft.(2.5m)
.ft.(m)
299()
Suspension Bolts
4 location of Suspension Bolts
299(760)
(Dimension of Suspension Bolts)
33(840
(Dimension of Indoor Unit)
860-910
(Dimension of Opening )
0
()
≥4.9ft.
(1.5m)
≥4.9ft.
(1.5m)
≥4.9ft.
(1.5m)
≥4.9ft.
(1.5m)
≥4.9ft.
(1.5m)
≥4.9ft.
(1.5m)
≥4.9ft.
(1.5m)
≥9.8ft.(3m)
≥4.9ft.
(1.5m)
≥4.9ft.
(1.5m)
≥2932.
(mm)
3.(mm)
3.(mm)
9.(mm)
9.(mm)
3938.(mm)
mmt
232(2)
232(2)
232(2)
232(2)
(Dimension of Suspension Bolts)
.(mm)
(mf)
3333(89)
33(8)
(mfdt)
≥4.9ft.
(1.5m)
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