Hitachi SET FREE-Serie Bedienungsanleitung Seite 65

COMMISSIONING

DSW101 (INV1,2)
Setting not required.
inV1
setting before shipment
ON
1 2 3 4 5 6
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n o t e
If cancellation of current detection is set, make sure to return the setting, after service works.
11 CommissioninG
11.1 PreliminarY CHeCks
The test run must be carried out according to the instructions
given in chapter "11.2 Carry out the Test Run".
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D a n G e r
Do not use the system until all of the check points have been verified.
As with the test run for the indoor unit, check the Installation and
maintenance manual for the indoor unit and the CH unit.
Make sure the refrigerant pipes and communication cables
between the outdoor and indoor units are connected to the
same refrigeration cycle. Failure to do so could lead to abnormal
operations or a serious accident. Check that the setting of the
refrigerant cycle DSW switches (DSW1 and RSW1 on outdoor
units, DSW5 and RSW2 on indoor units) and of the unit number
of the indoor units is suitable for the system. Check whether
the DIP switch setting specified on the printed circuit of the
indoor and outdoor units is correct. Pay particular attention to
the outdoor unit nunber, the refrigerant cycle number and the
terminal resistance.
Make sure the electrical resistance is greater than 1 MΩ by
measuring the resistance between the ground and the terminal
of the electrical components. If not, do not use the system until
the electrical leak has been detected and repaired. Do not apply
voltage to the communication terminals.
Check that all cables, L1, L2, L3 and N (R, S, T and N) are
correctly connected to the power line. If they are not correctly
connected, the unit will not work and the remote control will
indicate alarm code "05". When this occurs, check and change
the power line phase according to the sheet attached to the rear
of the service cover.
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C a U t i o n
Make sure the main power supply switch has been on for over 12 hours to
heat up the compressor oil using the heating elements.
The FSXNSE and FSXNPE series outdoor units do not work
for 4 hours after the power supply line has been connected
(stoppage code d1-22). Where the unit is to be started within 4
hours, release the protection control as follows:
1 Switch on the power supply to the outdoor unit.
2 Wait 30 seconds.
55 PMML0479 rev.2 - 02/2018
inV2
setting before shipment
ON
1 2 3 4 5 6
3 Press PSW5 on the outdoor unit PCB for more than 3
seconds to release code d1-22. Where a remote control is
used for releasing, press Air Flow and Auto Louver at the
same time for 3 seconds.
Where several base units are combined, stick the label on the
main unit in a visible place (outdoor unit 1) so that the outdoor
unit A can be easily identified. Do not stick the main label on the
secondary unit (outdoor units 2 and 3).
!
C a U t i o n
Where the total insulation resistance of the unit is below 1 MΩ, the
compressor insulation resistance may be low due to the refrigerant held
in the compressor. This may occur if the unit is not used for long periods.
1 Disconnect the compressor cables and measure the
insulation resistance of the compressor. If the resistance
value is greater than 1 MΩ, the insulation fault has occurred
in another electrical component.
2 If the insulation resistance is below 1 MΩ, disconnect the
compressor cable on the inverter PCB. Then switch on the
main power supply to apply current to the crankcase heating
elements. Once current has been received for more than 3
hours, re-measure the insulation resistance. (Current may be
required for longer, depending on the air conditions, the pipe
length or the condition of the refrigerant) Check the insulation
resistance and re-connect the compressor. Where the earth
leakage breaker is tripped, check the recommended size:
see in chapter "10.3.2 Cable sizes and main breaker switch".
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n o t e
• Make sure the electric components in the installation (earth leakage
breaker, circuit breaker, cables, connectors, cable terminals and main
power switches) have been selected correctly in line with the electrical
data given in this Manual. Also make sure that these components are
compliant with national and local codes.
• Use shielded cables (> 0.75 mm
wiring to avoid electromagnetic noise. (Shielded cable must be less
than 1000 m in total length and its size must be compliant with local
codes.)
• Check the connection of the power wiring terminals (terminals "L1"
to "L1" and "N" to "N"). AC supply voltage 3N~ 400V 50Hz. If it is
different, some components could be damaged.
Cancellation of current detection
ON
1 2 3 4 5 6
) for communication installation
2