Power Source; Maximum Current - Hitachi RCIM-1.0FSN4 Installations- Und Betriebshandbuch

Electrical wiring
16.4 ELECTRICAL WIRING CAPACITY
16.4.1 Field minimum wire sizes for power
source
• Use an ELB (Earth Leakage Breaker). If not used, it will
cause an electric shock or a fire.
• Do not operate the system until all the check points have
been cleared:
Check to ensure that the electrical resistance is more
-
than 1 megohm, by measuring the resistance between
ground and the terminal of the electrical parts. If it is
less than 1 megohm, do not operate the system until the
electrical leakage is found and repaired.
Model

Power source

RCIM-0.6FSN4
RCIM-0.8FSN4
RCIM-1.0FSN4
1~ 230V 50Hz
RCIM-1.5FSN4
RCIM-2.0FSN4
RCIM-2.5FSN4
?
N O T E
• Follow the local codes and regulations when selecting field wires.
• The wire sizes in the table are selected at the maximum current of the
unit according to the European Standard, IEC 60335-1. Use the wires
which are not lighter than the ordinary tough rubber sheathed flexible
cord (code designation H05RN-F) or ordinary polychloroprene
sheathed flexible cord (code designation H05RN-F).
• Use a shielded cable for the transmitting circuit and connect it to
ground.
• In the case that power cables are connected in series, add maximum
current to each unit and select wires below.
16.4.2 Details of electrical wiring connection
The electrical wiring capacity of the outdoor unit should be referred according to Installation and Operation Manual of the outdoor
unit. Setting Dip Switch may be required depending on the combination with the outdoor unit.

Example for UTOPIA Series
The control cable length between the outdoor unit and the indoor unit shall be less than 75m.
Case A
29 PMML0363A rev.2 - 08/2016 - P5416559

Maximum current

5A
Remote control switch cable (Field-Supplied)
1~
230V / 50Hz
ELB
* Main
Outdoor unit
switch
L1
Power source cable
Pay attention to the phase of
power source when wiring.
(*) Refer to Installation and Operation Manual of connected outdoor unit for details of wire, ELB and main switch.
Check to ensure that the stop valves of the outdoor unit
-
are fully opened, and then start the system.
- Check to ensure that the switch on the main power
source has been ON for more than 12 hours, to warm the
compressor oil by the crankcase heater.
• Do not touch any of the parts by hand at the discharge gas
side, since the compressor chamber and the pipes at the
discharge side are heated higher than 90ºC.
Power source cable size
IEC 60335-1
0.75mm
2
Selection according to IEC 60335-1
Current i (A)
i < 6
6 < i < 10
10 < i < 16
16 < i < 25
25 < i < 32
32 < i < 40
40 < i < 63
63 < i
*3: In the case that current exceeds 63A do not connect cables in series.
Power source type: 3 Phase 4 Wires
Shielded twist pair Cable 0.75mm 2
This cable does not need any polarity.
Do not apply an excessively high voltage
to this cable. (Rated Voltage: 5V)
Indoor unit
L2 R S
1 2 A B 1 2
N L1 N
Earth wiring
*5
*4
*4
Control cable
Shielded twist pair cable 0.75mm
This cable does not need any polarity. Do not apply an
excessively high voltage to this cable. (Rated Voltage: 5V)
Transmitting cable size
IEC 60335-1
0.75mm
2
Wire size (mm
2
0.75
1
1.5
2.5
4
6
10
*3
Power Source Type: 3 Phase
1
Remote control
220V / 50Hz
switch (option)
220V / 60Hz
ELB
Main
Outdoor Unit
Switch
*8
L2
L1
*7
Earth
wiring
Power Source Cable
Pay attention to the phase
2
of power source when wiring.
Refer to "Installation & Maintenance Manual"
details of wire, ELB and main switch.
)
Remote Contro
Switch Cable
(Field-Supplied
Shielded Twist Pair
This cable does not
Do not apply an exc
voltage to this cable
Indoor
R S
1 2
N L1 N
Earth Wiring
*5
*4
*4
C
Sh
Th
Do
vo