Electrical And Control Settings - Hitachi YUTAMPO TAW-190NHB 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 YUTAMPO
system (outdoor unit + DHW tank).
The power supply voltage is within ±10% of the rated
-
voltage.
6.2 ELECTRICAL CONTROL BOX
RB
1 2 3
L N
CB
CB
RB
6.3 SYSTEM WIRING DIAGRAM AND TRANSMISSION WIRING BETWEEN OUTDOOR UNITS
AND INDOOR UNIT TANK
The units shall be connected according to the following electric diagrams, depending on the applicable powering scheme and
according to the local regulations:
In case of power supply through the tank
Tank Unit
1 230V 50Hz ~
Power supply to
CB Electrical Heater of
the tank and OU
ELB
Earth
!
C A U T I O N
This power supply is not available in case of combination with RAM-90NYP5B.
8 PMML0451 rev.2 - 03/2018
Outdoor Unit
Communication (Power IU PCB)
Power supply to Outdoor Unit
The impedance of the power supply line is low enough
-
to avoid any voltage drop of more than 15% of the rated
voltage.
• The installation must satisfy the following requirements
established by the Council Directive 2014/30/EU, relating to
electromagnetic compatibility:
- Compliance with EN61000-3-2 (Harmonics).
- Compliance with EN61000-3-3 (Voltage fluctuations).
Mark
PCB
DSW1
TB1
TB2
AR
ITH
CB
RB
In the case of independent supply to the tank and to
the outdoor unit
Tank Unit
1 230V 50Hz ~
Communication (Power IU PCB
Power supply to
CB
Electrical Heater of
ELB
the tank
Earth
Part Name
Printed circuit board
DIP Switch (factory setting)
Communication terminal board
(1-2-3 / Outdoor unit - Tank)
Power terminal board
(L-N : 1~ 230V 50Hz)
Relay
Thermostat
Cord band
Rubber bushing
Outdoor Unit
1 230V 50Hz ~
)
Power supply to OU
CB
ELB
Earth