Hitachi FSXN1E Series Installation And Operation Manual page 83

Test run
11.4 PC-ARF REMOTE CONTROLLER
Press and hold " " (menu) and " " (return) simultaneously for at
least 3 seconds. The test run menu will be displayed.
Select "Test Run" by pressing "
screen will be displayed.
The total number of indoor units connected is indicated on the
LCD (Liquid crystal display). The twin combination (one (1) set
with two (2) indoor units) is indicated as "2 units", and the triple
combination (one (1) set with three (3) indoor units) is indicated
as "3 units".
N O T E
When "00 unit" is indicated, 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 per-
formed 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 remote control
switch
• Incorrect setting of indoor unit address (The indoor unit ad-
dress is overlapped.)
Start test run.
Press " " (run/stop). The test run operation will start. The opera-
tion 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 " " and set the detail by pressing "
setting of the test run time is 2-hour OFF timer.
Check the temperature conditions. The unit operation cannot be
performed if the conditions are out of range.
Press " " or " ", select "LOUV." and select "
pressing " " or " ". The auto swing operation will start. Check the
operating sound at 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 with-
out deformation. If abnormal sound is not generated, press " " or
" " again to stop the auto swing operation.
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 Alarm Code and perform troubleshooting.
Then perform the test run again.
69
PMML0294A_rev.2_02-2014.indb 69
" and press "OK". The test run
". The default
" (auto swing) by
PMML0294A rev.2 - 07/2014
According to the label "Checking Method by 7-Segment Display"
attached to the back side of the service cover of the outdoor unit,
check the temperature, the pressure and the operation frequency
of the specified portions, and check the number of the connected
indoor units on 7-segment displays.
To finish the test run, wait for 2 hours (as default setting) or press
" " (run / stop) switch again.
• Flashing the operation lamp for 2 seconds ON and 2 seconds
OFF is for abnormality of the transmitting between the indoor
unit and the remote control switch (loosened or disconnected
connector, disconnected wires, or incorrect wiring etc.)
• 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, there is no ab-
normality of the unit.
• Sound may be heard from the outdoor unit for seconds after
running or stopping the compressor, starting or finishing the
defrosting, etc. It generates because of the pressure differ-
ence inside the piping from the compressor. Therefore, there
is no abnormality of the unit.
D A N G E R
Do NOT operate the air conditioners to check the electrical
wiring, etc until the preparation of the test run is completed.
N O T E
For further information on function settings, consult the Service
Manual for FSXN1E and FSXNH(E) series outdoor units.
14/07/2014 12:28:40