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 (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
max
at the interface point of the user’s supply, in accordance with EN61000-3-11.
Indoor unit alone
Model
Power
supply
Operation mode
Z
max
(Ω)
RWH-4.0VNFE
1~
230V
50Hz
Without DHW tank heater
0.31
With DHW tank heater
0.20
RWH-5.0VNFE
Without DHW tank heater
0.27
With DHW tank heater
0.18
RWH-6.0VNFE
Without DHW tank heater
0.24
With DHW tank heater
0.17
RWH-4.0NFE
3N~
400V
50Hz
Without DHW tank heater
-
With DHW tank heater
0.38
RWH-5.0NFE
Without DHW tank heater
-
With DHW tank heater
0.38
RWH-6.0NFE
Without DHW tank heater
-
With DHW tank heater
0.38
?
N O T E
The data corresponding to DHW tank heater is calculated in combination
with the YUTAKI S80 domestic hot water tank accessory “DHWT-
(200/300)S-3.0H2E”.
Indoor unit in combination with DHW tank
Model
Power
supply
Operation mode
Z
max
(Ω)
RWH-4.0VNFWE
1~
230V
50Hz
Without DHW tank heater
0.31
With DHW tank heater
0.21
RWH-5.0VNFWE
Without DHW tank heater
0.27
With DHW tank heater
0.19
RWH-6.0VNFWE
Without DHW tank heater
0.24
With DHW tank heater
0.17
RWH-4.0NFWE
3N~
400V
50Hz
Without DHW tank heater
-
With DHW tank heater
0.41
RWH-5.0NFWE
Without DHW tank heater
-
With DHW tank heater
0.41
RWH-6.0NFWE
Without DHW tank heater
-
With DHW tank heater
0.41
?
N O T E
The data corresponding to DHW tank heater is calculated in combination
with the YUTAKI S80 domestic hot water tank accessory “DHWS(200/260)
S-2.7H2E”.
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
Models
Equipment complying with IEC 61000-3-2
RWH-4.0NFE
RWH-5.0NFE
RWH-6.0NFE
RWH-4.0NFWE
RWH-5.0NFWE
RWH-6.0NFWE
Equipment complying with IEC 61000-3-12
RWH-4.0VNFE
RWH-5.0VNFE
RWH-6.0VNFE
RWH-4.0VNFWE
RWH-5.0VNFWE
RWH-6.0VNFWE
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”
for the detailed information.
ELECTRICAL AND CONTROL SETTINGS
PMML0340B rev.1 - 03/2016
14