Electrical And Control Settings; General Check - Hitachi YUTAKI Series Installation And Operation Manual

ELECTRICAL AND CONTROL SETTINGS

6 ELECTRICAL AND CONTROL SETTINGS

6.1 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 (if apply)).
- 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

Split system - R410A Outdoor unit
Model Power supply
RAS-2WHVNP
RAS-2.5WHVNP
RAS-3WHVNP
1~ 230V 50Hz
RAS-4WHVNPE
RAS-5WHVNPE
RAS-6WHVNPE
RAS-4WHNPE
RAS-5WHNPE
RAS-6WHNPE 3N~ 400V 50Hz
RAS-8WHNPE
RAS-10WHNPE

Split system - R32 Outdoor unit
Model
RAS-2WHVRP
RAS-2.5WHVRP
RAS-3WHVRP

Split system - Indoor unit
YUTAKI S
Model Power supply
RWM-(2.0-3.0)NRE(-W) 1~ 230V 50Hz
1~ 230V 50Hz
RWM-(4.0-6.0)NE(-W)
3N~ 400V 50Hz
45 PMML0510 rev.1 - 10/2019
at the interface point of the user's supply, in accordance with EN61000-3-11.
max
Z (Ω)
max
-
-
0.42
0.25
0.25
0.25
-
-
-
-
-
Power supply Z
max
1~ 230V 50Hz
0.43
Without electric heater
With electric heater
With DHW tank heater
With electric and DHW tank heaters
Without electric heater
With electric heater
With DHW tank heater
With electric and DHW tank heaters
Without electric heater
With electric heater
With DHW tank heater
With electric and DHW tank heaters
(Ω)
-
-
Operation mode Z (Ω)
max
-
-
-
0.26
-
0.26
-
0.17
-
-
-
-