Hitachi YUTAKI S Series Instruction Manual page 32

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 EN 57).
Power
Model
supply
1~ 230V
50Hz
RWM-(2.0-3.0)R1E
3N~ 400V
50Hz
1~ 230V
50Hz
RWM-(4.0-6.0)N1E
3N~ 400V
50Hz
3N~ 400V
RWM-(8.0/10.0)N1E
50Hz
?
N O T E
The data corresponding to DHW tank heater is calculated in combination with the domestic hot water tank accessory "DHWT-(200/300)S-3.0H2E".
!
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).
14 PMML0574 rev.0 - 09/2021
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
Without electric heaters
With electric heater
With DHW tank heater
With electric and DHW tank heaters
Power supply
Max
cables
current
(A)
EN60335-1
0.6 2 x 0.75 mm² + GND
14.9 2 x 2.5 mm² + GND
14.9 2 x 2.5 mm² + GND
29.3 2 x 6.0 mm² + GND
0.6 4 x 0.75mm² + GND
5.3 4 x 2.5 mm² + GND
14.9 4 x 2.5 mm² + GND
19.7 4 x 6.0 mm² + GND
0.6 2 x 0.75 mm² + GND
29.3 2 x 6.0 mm² + GND
14.9 2 x 2.5 mm² + GND
43.6 2 x 10.0 mm² + GND
0.6 4 x 0.75mm² + GND
10.1 4 x 2.5 mm² + GND
14.9 4 x 2.5 mm² + GND
24.5 4 x 6.0 mm² + GND
0.6 4 x 0.75 mm² + GND
14.9 4 x 4.0 mm² + GND
15.0 4 x 2.5 mm² + GND
29.2 4 x 6.0 mm² + GND
Transmitting
ELB
CB
cables
(nº of
(A)
poles/A/mA)
EN60335-1
5
16
2/40/30
16
32
5
16
4/40/30
16
32
5
32 2/40/30
2 x 0.75 mm
2
16
50 2/63/30
5
15
4/40/30
15
25
5
20
4/40/30
15
30