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8
Test run
■
Before test run
• Before turning on the circuit breaker, carry out the
following procedure.
1) By using insulation tester (500V-megger), check
that resistance of 1MΩ or more exists between the
terminal block L to N and the earth (grounding).
If resistance of less than 1MΩ is detected, do
notrun the unit.
2) Check the valve of the outdoor unit being opened
fully.
• To protect the compressor at activation time, leave
power-ON for 12 hours or more for operating.
• Before starting a test run, be sure to set addresses
following the Installation Manual supplied with the
outdoor unit.
◆ Requirements for turning thermostat OFF
Cooling operation
When the outdoor/suction air temperature is lower than or equal to 19°C.
When the outdoor/suction air temperature is lower than or equal to 3°C above the set temperature.
Heating operation
When the outdoor/suction air temperature is lower than or equal to -10°C
When the outdoor/suction air temperature is higher than or equal to 15°C.
When the outdoor/suction air temperature is higher than or equal to 3°C above the set temperature.
■
Execute a test run
When a fan operation is to be performed for an
individual indoor unit, turn off the power, short circuit
CN72 on the circuit board, and then turn the power
back on. (Set the operation mode to "fan" to operate
the unit.) When the test run has been performed
using this method, be sure to release the short circuit
of CN72 after the test run is completed.
Operate the unit with the remote controller as usual.
For the procedure of the operation, refer to the
Owner's Manual attached to the outdoor unit.
A forced test run can be executed in the following
procedure even if the operation stops by thermostat-
OFF.
In order to prevent a serial operation, the forced test
run is released after 60 minutes have passed and
returns to the usual operation.
CAUTION
Do not use the forced test run for cases other than the
test run because it applies an excessive load to the
devices.
29-EN
– 15 –
Wired remote controller
Be sure to stop the air conditioner before making
settings.
(Change the setup while the air conditioner is not
working.)
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 notwork
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.)
Wireless remote controller
NOTE
• Be sure to operate the unit, following the instruction
manual
• Do not run the air conditioner in forced cooling mode
for a long time since it overloads the air conditioner.
• Forced heating is not available for trial runs.
To perform a test run, set the unit to heating mode
with the remote controller. The unit might not
operate in heating mode, however, depending on
temperature conditions.
1
Hold down the TEMPORARY button for over
10 seconds. With a beep sound, the unit is set
to the forced cooling mode.
In approximately three minutes, it is forced to start
in cooling mode. Determine that cool air comes
out of the unit. If the unit won't start, check the
wiring.
2
Push the TEMPORARY button again (for about
one second) to stop a trial run.
The upper and lower wind direction changing
blades close, and the unit stops operation.
Checking remote transmission
1. Push the ON/OFF button on the remote controller to
determine that it works properly.
• Pushing the TEMPORARY button once (for about
one second) causes the unit to enter auto operation
mode. Hold down the TEMPORARY button for over
10 seconds to begin forced cooling.
• Even if you select cooling with a remote controller,
the unit does not always perform cooling operation,
depending on temperature conditions. Check the
wiring and piping of the indoor and outdoor units in
forced cooling mode.
TEMPORARY button
30-EN
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