Hitachi YUTAKI S COMBI Series Instruction Manual page 24

ELECTRICAL AND CONTROL SETTINGS
5 ELECTRICAL AND CONTROL SETTINGS
5.1 GENERAL CHECK
• Make sure that the following conditions related to power supply installation are satisfied:
- The power capacity of the electrical installation is large enough to support the power demand of the YUTAKI system (outdoor
unit + indoor unit + DHW tank).
- The power supply voltage is within ±10% of the rated voltage.
The impedance of the power supply line is low enough to avoid any voltage drop of more than 15% of the rated voltage.
-
• Following the Council Directive 2004/108/EC, relating to electromagnetic compatibility, the table below indicates the Maximum
permitted system impedance Z
Model
RWD-(2.0-3.0)NW(S)E-(200/260)S(-K)(-W)
RWD-(4.0-6.0)FNW(S)E-(200/260)S(-K)(-W)
• The status of Harmonics for each model, regarding compliance with IEC 61000-3-2 and IEC 61000-3-12, is as follows:
Status regarding compliance with IEC 61000-3-2 and IEC 61000-3-12
Equipment complying with IEC 61000-3-12
Installation restrictions may be applied by supply authorities in relation to
harmonics
• Check to ensure that existing installation (mains power switches, circuit breakers, wires, connectors and wire terminals) already
complies with the national and local regulations.
• The use of the DHW tank heater is disabled as factory setting. If it is desired to enable the DHW tank heater operation during
normal indoor unit operation, adjust the DSW4 pin 3 of the PCB1 to the ON position and use the adequate protections. Refer to
the section
"5.6 Setting of DIP switches and RSW switches"
14 PMML0338B rev.6 - 12/2018
at the interface point of the user's supply, in accordance with EN61000-3-11.
max
Power supply
1~ 230V 50Hz
1~ 230V 50Hz
3N~ 400V 50Hz
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
RWD-2.0NWE-200S(-K)(-W)
RWD-2.0NW(S)E-260S(-K)(-W)
RWD-2.5NWE-200S(-K)(-W)
RWD-2.5NW(S)E-260S(-K)(-W)
RWD-3.0NWE-200S(-K)(-W)
RWD-3.0NW(S)E-260S(-K)(-W)
RWD-4.0NWE-260S(-K)(-W)
RWD-4.0NW(S)E-260S(-K)(-W)
RWD-5.0NWE-260S(-K)(-W)
RWD-5.0NW(S)E-260S(-K)(-W)
RWD-6.0NWE-260S(-K)(-W)
RWD-6.0NW(S)E-260S(-K)(-W)
for the detailed information.
Z
max
-
-
-
0.28
-
0.26
-
0.18
-
-
-
-
Models
-
(Ω)