Hitachi YUTAKI ATW-YCC-03 Installation And Operation Manual page 25

ELECTRICAL AND CONTROL SETTINGS
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C A U T I O N
• Use a dedicated power circuit for the unit. Do not use a power circuit shared with the outdoor unit or any other appliance.
• Make sure that all wiring and protection devices are properly selected, connected, identified and fixed to the correspond ing terminals of the unit,
specially the protection (earth) and power wiring, taking into account the applicable national and local regulations. Establish proper earthing;
Incomplete earthing may cause electrical shock.
• Protect the unit against the entry of small animals (like rodents) which could damage any internal wire or any other electrical part, leading to electric
shock or short-circuit.
• Keep a distance between each wiring terminal and attach insulation tape or sleeve as shown in the figure.
9.1.3 Wiring size and minimum requirements of protection device
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C A U T I O N
• Check to ensure that the field supplied electrical components (main power switches, circuit breakers, wires, connectors and wire terminals) have
been properly selected according to the electrical data indicated in 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 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 (60245 IEC 57 code designation)
Model Power supply Operation mode
ATW-YCC-03 1~230V 50Hz
!
C A U T I O N
• Ensure that there is an Earth Leakage Breaker (ELB) and a Circuit Breaker (CB) installed in the power supply line.
• If the installation is already equipped with an ELB, ensure that its rated current is large enough to hold the current of the units (Outdoor unit)
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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 know as Thermal-Magnetic Circuit Breaker or just Magnetic circuit breaker (MCB).
19 PMML0581 rev.1 - 02/2023 - 1000011627
Tape or sleeve
Max.
Current (A)
- 5
With DHW Tank 19
Power supply cables Transmitting cables
EN60335-1 EN60335-1
2 x 0.75 mm
2
2 x 0.75 mm
2 x 4 mm
2
CB ELB
(A) (nº of poles/A/mA)
5
2/40/30
2
20