Hitachi FSXN1E Series, Installation And Operation Manual, Page: 75 / 756

10.3.3 Voltage supply
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Service voltage
Between 90 and 110% of the rated voltage.
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Start-up voltage
Between 85 and 115% of the rated voltage.
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Voltage imbalance
Up to 3% in each phase, measured at the main terminal of the outdoor unit.
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Electromagnetic compatibility
According to Directive 2004/108/EC (89/336/EEC) regarding electromagnetic compatibility, the following table indicates: the maximum
allowed impedance Z
max
of the system at the connection point of the user's power supply, as per EN61000-3-11.
Model Z
max
(Ω)
RAS-(8-10)FSXN1E –
RAS-12FSXN1E 0.26
RAS-(14/16)FSXN1E 0.12
RAS-(5-12)FSXNH(E) –
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Harmonics
In relation to IEC 61000-3-2 and IEC 61000-3-12, the situation of harmonics for each model is as follows:
Situation of the models in relation to IEC 61000- 3-2 and IEC 61000-3-12 Ssc "xx" Model
Unit compliant with IEC 61000-3-2 (professional use).
RAS-8FSXN1E
RAS-10FSXN1(E)
RAS-(5-10)FSXNH(E)
Unit compliant with IEC 61000-3-12. –
This unit is in accordance with Standard IEC 61000-3-12 with the condition that the short circuit
current Ssc is greater than or equal to xx (see Ssc column) at the connection point between the
power supply of the user and the public grid. It is the responsibility of the installer or the user of
the unit to ensure, if necessary consulting the distribution grid operator, that the unit is connected
only to a power supply where the short circuit power is greater than or equal to xx
(see Ssc column).
Model Ssc “xx” (kVA)
RAS-14FSXN1E 5089
RAS-16FSXN1E 2493
The authorities responsible for the electrical power supply can apply restrictions relating to
harmonics.
RAS-12FSXN1E
RAS-12FSXNH(E)
10.4 ELECTRICAL WIRING FOR OUTDOOR UNIT
Connect the electrical wirings according to the following figures.
1
Connect the power supply wires to L1, L2, L3, and N (for
400V) for the three phase power source on the terminal board
TB1 and earth wire to the terminal in the electrical control box.
2 Connect the transmission wires between the outdoor and
indoor units to the TB2 terminals 1 and 2 on the PCB1. As
for the transmission wires between outdoor units in the same
refrigerant cycle, connect them to the TB2 terminals 3 and 4
on the PCB1.
3 Tighten screws for the terminal board according to the follow -
ing table.
Size Tightening Torque
M4 1,0 to 1,3 N-m
M5 2,0 to 2,4 N-m
M6 4,0 to 5,0 N-m
M8 9,0 to 11,0 N-m
M10 18,0 to 23,0 N-m
61 PMML0294A rev.2 - 07/2014
Electrical wiring
ENGLISH
PMML0294A_rev.2_02-2014.indb 61 14/07/2014 12:28:34