En-19
Insulation material
Minimum thickness (mm)
Relative humidity
≤
70%
≤
75%
≤
80%
≤
85%
Pipe diameter
(mm)
6.35
8
10
13
17
9.52
9
11
14
18
12.70
10
12
15
19
15.88
10
12
16
20
* When an ambient temperature and relative humidity exceed 32 °C, please strengthen
heat insulation of refrigerant pipe.
8. 5. Filling with putty
WARNING
Fill the piping holes and wiring holes with putty (supplied locally) to avoid any gap
(Fig A). If small animals such as insects enter the external unit, a short circuit may be
caused near electrical components in the service panel.
• If the outdoor unit is installed at a
level that is higher than the indoor
unit, the water that has condensed
in the 3-way valve of the outdoor
unit could travel to the indoor unit.
Therefore, use putty in the space
between the pipe and the insulation
to prevent the entry of water to the
indoor units.
Putty
Insulation
Fig. A
9. TEST OPERATION
9. 1. Indoor unit connection check
Normal operation will not be possible without performing the Indoor unit connection
check.
9. 1. 1. Things to con
fi
rm before starting the Indoor unit
connection check
To ensure safety, check that the following work, inspections and operations have been
completed.
Check Item
Check Column
1
Check that all work on the wiring connecting the outdoor
unit and indoor units has been completed.
2
Is a breaker installed at the power supply cable of out-
door unit and every indoor units?
3
Are the cables connected to the terminals without loose-
ness, and in accordance with the speci
fi
cations?
4
Are all the indoor units stopped? Indoor unit connection
check can not be performed if any unit is operating.
5
Is the connection to Service tool (UTY-ASGX) and Web
monitoring tool (UTY-AMGX) stopped?
9. 1. 2. Operating procedure for Indoor unit connection check
Please perform the indoor unit connection check according to following procedures.
The Indoor unit connection check can be completed within several minutes.
: Press the “MODE/EXIT” button.
: Press the “SELECT” button.
: Press the “ENTER” button.
: Press the “ENTER” button for more than 3 seconds.
MODE/EXIT
SELECT
ENTER
ENTER
Set to Function mode [F3].
(When [F4] to [F9] are displayed,
continue to press the “SELECT”
button until [F3] is displayed.)
Press the “SELECT” button until
“12” is displayed.
When indoor unit connection check
can not be performed
• Turn on the power of indoor unit and outdoor unit.
• Press the
“ENTER”
button for more than 3 seconds.
• This will be displayed when the Indoor unit
connection check starts.
(*1)
(*2)
(*1) The number of connected
indoor units
(*2) Volume ratio of the indoor
units connection
Ex.) When 8 units are connected
Ex.) When the ratio is 120%
Please refer to the following “Error displays”
for details.
When it
fi
nishes normally, nothing will be displayed on
7 segment display.
When error occurs
• Con
fi
rm the number of connected indoor
units and the volume ratio of the indoor
units connection.
• Exit indoor unit connection check
mode.
MODE/EXIT.
SELECT
SELECT
ENTER
ENTER
SELECT
SELECT
ENTER
ENTER
ENTER
MODE/EXIT.
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9380545057_IM.indb 19
2014/9/15 11:27:06
2014/9/15 11:27:06
