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12
Test run
Before test run
• Before turning on the power supply, carry out the
following procedure.
1) By using 500 V-megger, check that resistance
of 1 M
Ω
or more exists between the terminal
block 1 to 3 and the earth (grounding).
If resistance of less than 1 M
Ω
is detected, do
not run 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 before operating.
Execute a test run
Operate the unit with the wired remote controller as
usual.
For the procedure of the operation, refer to the
attached Owner’s Manual.
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.
1
Push
button for 4 seconds or more.
[TEST] is displayed on the display part and
the selection of mode in the test mode is
permitted.
2
Push
button.
3
Select the operation mode with
button, [
Cool] or [
Heat].
• Do not run the air conditioner in a mode other
than [
Cool] or [
Heat].
• The temperature controlling function does not
work during test run.
• The detection of error is performed as usual.
4
After the test run, push
button to
stop a test run.
(Display part is same as procedure
1
.)
5
Push
check button to cancel (release
from) the test run mode.
([TEST] disappears on the display and the
status returns to a normal.)
2, 4
3
1,5
When a test run is not
performed properly
When a test run is not performed properly, refer to the
error code and the part to be checked on
“Troubleshooting”.
In case of wireless remote controller
(Forced test operation is performed in a
different way.)
REQUIREMENT
• For the operation procedure, be sure to follow the
Owner’s Manual.
• Finish the forced cooling operation in a short time
because it applies excessive strength to the air
conditioner.
• A test operation of forced heating is unavailable.
Perform a test operation by heating operation using
the switches of the remote controller.
However heating operation may be not carried out
according to the temperature conditions.
Check wiring / piping of indoor and outdoor units
1
When
button is pushed for 10 seconds or
more, “Pi!” sound is heard and the operation
changes to a forced cooling operation. After
approx. 3 minutes, a cooling operation starts
forcedly.
Check cool air starts blowing. If the
operation does not start, check wiring again.
2
To stop a test operation, push
button
once again (approx. 1 second).
The louver closes and the operation stops.
• Check transmission of remote controller
3
Push
button of the remote controller
to check an operation can also start by the
remote controller.
• “Cooling” operation by the remote controller
may be unavailable according to the
temperature conditions.
Check wiring / piping of the indoor and outdoor
units in forced cooling operation.
37-EN
38-EN
+001111055801_01EN.book Page 19 Monday, September 5, 2011 11:12 AM
