12
Test run
Before test run
Confirm that the valve of the refrigerate pipe of the
outdoor unit is OPEN.
• Before turning on the power, confirm that the
resistance between the terminal block of power
supply and the earth is more than 2MΩ using a 500V
megohmmeter.
Do not run the unit if it is less than 2MΩ.
CAUTION
• Turn on the power and turn on the case heater of
the compressor.
To save the compressor when it is activated, leave
the power on for more than 12 hours.
Methods of test run
When executing a test run using
a remote controller
Operate the system normally to check the running
condition using the wired remote controller. Follow
the instructions in the supplied owner's manual when
operating the unit.
If you use a wireless remote controller for operations,
follow the instructions in the installation manual
supplied with the indoor unit.
To execute a test run forcibly under the condition that
the thermostat automatically turns the unit off due to
the indoor temperature, follow the procedure below.
The forcible test run will automatically stop after
60 minutes to prevent continuous forcible running and
return to normal running.
CAUTION
Do not use forcible running except for a test run as it
overloads the unit.
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Wired remote controller
Be sure to stop the air conditioner before making
settings.
(Change the setup while the air conditioner is not
working.)
4
3
4
3
3
3
1
1
2
2
1
Push and hold OFF timer button and [
]
setting button simultaneously for 10 seconds
or more. [TEST] is displayed on the display
part and the test run is permitted.
2
Push ON/OFF button.
3
Push menu button to select the operation
mode. Select [
Cool] or [
Heat] with
[
] [
] setting button, and then push menu
button (three times) again to determine the
operation mode.
• Do not run the air conditioner in a mode other
than [Cool] or [Heat].
• The temperature setting function does not work
during test run.
• The check code is displayed as usual.
4
After the test run, push OFF timer button to
stop a test run.
([TEST] disappears on the display and the air
conditioner enters the normal stop mode.)
When executing a test run using
the interface P.C. board on the
outdoor unit
You can execute a test run by operating switches
on the interface P.C. board of the header outdoor
unit. "Individual trial", which tests each indoor unit
separately, and "collective trial", which tests all the
indoor units connected, are available.
<Individual test operation>
Starting operation
1
Set the running mode to "COOL" or "HEAT"
on the remote controller of the indoor unit to
be tested.
(The unit will run in the current mode unless
you set the mode otherwise.)
7-segment display
[A]
[B]
[U1]
[
]
2
Set the rotary switches on the interface P.C.
board of the header outdoor unit:
SW01 to [16], SW02 and SW03 to the address
of the indoor unit to be tested.
SW
SW
SW
Indoor unit address
01
02
03
16
1 to 16
1
1 to 16
Set number of SW02
16
1 to 16
2
17 to 32
Set number of SW02 + 16
16
1 to 16
3
33 to 48
Set number of SW02 + 32
16
1 to 16
4
49 to 64
Set number of SW02 + 48
16
1 to 16
5
65 to 80
Set number of SW02 + 64
16
1 to 16
6
81 to 96
Set number of SW02 + 80
16
1 to 16
7
97 to 112 Set number of SW02 + 96
16
1 to 16
8 113 to 128 Set number of SW02 + 112
7-segment display
[A]
[B]
[
]
[
]
Address display of the
corresponding indoor unit
– 84 –
3
Push and hold SW04 for more than 10
seconds.
7-segment display
[A]
[B]
[
]
[
]
Address display of the
[FF] is displayed for 5
corresponding indoor unit
seconds.
NOTE
• The running mode follows the mode setting on the
remote controller of the target indoor unit.
• You cannot change the temperature setting during
the test run.
• Errors are detected as usual.
• The unit does not perform test run for 3 minutes after
turning the power on or stopping running.
Finishing operation
1
Set the rotary switches on the interface
P.C. board of the header unit back: SW01 to
[1], SW02 to [1] and SW03 to [1].
7-segment display
[A]
[B]
[U1]
[
]
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EN