Hitachi YUTAKI S COMBI Serie Manual De Instrucciones página 31

ELECTRICAL AND CONTROL SETTINGS
5.3 WIRING SIZE AND MINIMUM REQUIREMENTS OF THE PROTECTION DEVICES
!
C A U T I O N
• Check to ensure that the field supplied electrical components (mains power switches, circuit breakers, wires, connectors and wire terminals) have
been properly selected according to the electrical data indicated on this chapter and they comply with national and local codes. If it is necessary,
contact with your local authority in regards to standards, rules, regulations, etc.
• Use a dedicated power circuit for the indoor unit. Do not use a power circuit shared with the outdoor unit or any other appliance.
Use wires which are not lighter than the polychloroprene sheathed flexible cord (code designation 60245 IEC 57).
Power
Model
supply
1~ 230V
50Hz
RWD-(2.0-3.0)-RW1E-
220S(-K)
3N~
400V
50Hz
1~ 230V
50Hz
RWD-(4.0-6.0)NW1E-
220S(-K)
3N~
400V
50Hz
!
C A U T I O N
• Ensure specifically that there is an Earth Leakage Breaker (ELB)
installed for the units (outdoor and indoor unit).
• If the installation is already equipped with an Earth Leakage Breaker
(ELB), ensure that its rated current is large enough to hold the current
of the units (outdoor and indoor unit).
?
N O T E
• Electric fuses can be used instead of magnetic Circuit Breakers (CB).
In that case, select fuses with similar rated values as the CB.
• The Earth Leakage Breaker (ELB) mentioned on this manual is also
commonly known as Residual Current Device (RCD) or Residual
Current Circuit Breaker (RCCB).
• The Circuit Breakers (CB) are also known as Thermal-Magnetic
Circuit Breakers or just Magnetic Circuit Breakers (MCB).
13 PMML0573 rev.1 - 07/2021
Operation mode
Without electric heaters
With electric heater
With DHW tank heater
With electric and DHW tank heaters
Without electric heaters
With electric heater
With DHW tank heater
With electric and DHW tank heaters
Without electric heaters
With electric heater
With DHW tank heater
With electric and DHW tank heaters
Without electric heaters
With electric heater
With DHW tank heater
With electric and DHW tank heaters
Power supply Transmitting
Max.
cables
current
(A)
EN60335-1
0.6 2 x 0.75 mm² + GND
14.9 2 x 2.5 mm² + GND
13.1 2 x 2.5 mm² + GND
27.4 2 x 6.0 mm² + GND
0.6 4 x 0.75 mm² + GND
9.6 4 x 2.5 mm² + GND
13.1 4 x 2.5 mm² + GND
13.1 4 x 2.5 mm² + GND
0.6 2 x 0.75 mm² + GND
29.3 2 x 6.0 mm² + GND
13.1 2 x 2.5 mm² + GND
41.8 2 x 10.0 mm² + GND
0.6 4 x 0.75 mm² + GND
19.1 4 x 6.0 mm² + GND
13.1 4 x 2.5 mm² + GND
19.1 4 x 6.0 mm² + GND
5.4 TRANSMISSION WIRING BETWEEN
OUTDOOR AND INDOOR UNIT
• The transmission is wired to terminals 1-2.
• The H-LINK II wiring system requires only two transmission
cables that connect the indoor unit and the outdoor unit.
1
1
• Use twist pair wires (0.75 mm²) for operation wiring between
outdoor unit and indoor unit. The wiring must consist of
2-core wires (Do not use wire with more than 3 cores).
• Use shielded wires for intermediate wiring to protect the
units from noise interference, with a length of less than 300
m and a size in compliance with local codes.
• In the event that a conduit tube for field-wiring is not used, fix
rubber bushes to the panel with adhesive.
!
C A U T I O N
Ensure that the transmission wiring is not wrongly connected to any live
part that could be damaged the PCB.
CB ELB
cables
(A) (no. of poles/A/mA)
EN60335-1
5
16
2/40/30
16
32
5
16
4/40/30
16
16
2 x 0.75 mm
2
5
32 2/40/30
16
50 2/63/30
5
25
4/40/30
15
25
Indoor unit
2
Outdoor unit
2