Hitachi YUTAKI ATW-YCC-03 Installation And Operation Manual page 45

!
CAUTION
Ensure that the transmission wiring is not wrongly connected to any live part that could be
damaged the PCB.
◆ LCD unit controller (PC-ARFH2E) connection
!
CAUTION
It is mandatory to install the unit controller (PC-ARFH2E) in the service cover.
Connection for the LCD unit controller PC-ARFH2E should be done on the Terminal Board 2 of the
YUTAKI CASCADE CONTROLLER as shown in the next figure:
For this purpose, a H-LINK cable (accessory) is necessary.
The torque for the tightening of the screws of each Terminal board is explained in the table below
◆ Safety instructions
!
DANGER
• Do not connect the power supply to the unit before all connections have been previously
done.
• Do not connect or adjust any wiring or connections unless the main power switch is OFF.
• When using more than one power source, check and ensure that all of them are turned OFF
before operating the unit.
• Avoid wiring installation in contact with the refrigerant pipes, water pipes, edges of plates
and electrical components inside the unit to prevent damage, which may cause electric shock
or short circuit.
PMEN0581 rev.2 - 04/2023
CASCADE CONTROLLER
Terminal Board 2
Terminal board Tightening Torque (Nm/cm
TB1
TB2
PC-ARFH2E
)
2
2.0~2.5
1.0~1.3
5
39