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Test Run Setting: 2 units
MODE
:
SPEED
:
Sel.
Adj.
NOTES:
•
When "00 unit" is shown, the auto-address
function may be performing. Cancel "Test
Run" mode and set it again.
•
If the indicated number is not equal to the
actual number of connected indoor units,
the auto-address function is not performed
correctly due to incorrect wiring, the
electric noise, etc.
Turn OFF the power supply, and correct the
wiring after checking the following points
(Do not repeat turning ON and OFF within
10 seconds.)
○ The power supply for the indoor unit is
NOT turned ON or the incorrect wiring.
○ Loose Connection between Indoor Units
or Wired Controller
○ Incorrect Setting of Indoor Unit Address
(The indoor unit address overlaps.)
Step3.
Start Test Run.
Step3-1
Press " On/Off". The test run operation
will start. The operation mode, the air flow
volume, the air flow direction and the test
run time can be set on the test run screen.
Select the item by pressing "
the detail by pressing "
By default, the automatic "2-hour OFF
timer" is set.
Step3-2
Check the temperature conditions.
The unit operation cannot be performed if
the conditions are out of range.
NOTE:
•
Check the temperature conditions during the test
run.
○ Cooling: 21.5°C DB, -15°C WB (minimum),
outdoor temperature -5°C DB or more
○ Heating: 27°C DB or less
If the system will not perform a test run, check the
indoor and outdoor temperatures and humidity.
(They system cannot run in cooling mode at an
outdoor temperature of -5°C DB or less.)
A16381E84N-rev.1
COOL
AUTO
ON
Back
Rtrn
" and set
".
Step4.
Press " " or " ", select "LOUV." and select "
swing) by pressing " " or " ".
The auto swing operation will start. Check the
operation sound of the louvers.
If abnormal sound is generated from louvers, it may
be caused by deformation of the air panel due to
incorrect installation. In this case, install the air panel
again without deformation. If abnormal sound is not
generated, press " " or " " again to stop the auto
swing operation.
Step5.
Though the temperature detections by the thermistors
are invalid, the protection devices are valid during the
test run. If an alarm occurs, refer to Table 8.2 Alarm
Code and perform troubleshooting.
Then perform the test run again.
Step6.
Use the label "Checking Method by 7-Segment
Display" attached to the back side of the service cover
of the outdoor unit to check the temperature, the
pressure and the operation frequency of the specified
portions, and check the number of the connected
indoor units on the 7-segment display.
Step7.
To finish the test run, wait for 2 hours (as default
setting) or press "
Step7-1
Flashing of the "
ON, 2 seconds OFF) indicates an abnormality in
the communication between the indoor unit and
the wired controller (loosened or disconnected
connector, disconnected wires, or incorrect wiring
etc.)
Step7-2
A small sound may be heard from the outdoor unit
after turning ON the power source because the
electrical expansion valve is activated to adjust the
opening. Therefore, this is not an abnormality of
the unit.
Step7-3
Sound may be heard from the outdoor unit for
a few seconds after running or stopping the
compressor, starting or finishing defrosting, etc.
This sound is due to the pressure difference inside
the piping from the compressor. Therefore, this is
not an abnormality of the unit.
WARNING
•
Do NOT operate the air conditioner to check the electrical
wiring, etc. until the preparation of the test run is
completed.
8. Test Run
On/Off" switch again.
On/Off" switch (2 seconds
" (auto
106
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