Hitachi HARC-BX E Manuel D'installation page 13

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Electrical Wiring
I
Section
1φ220/240V power
Source HARC-BX E
Power Line
Earthling Wire
Upper System
Monitoring Equip.
HARC-BX E
Control
Circuit
HARC-BX E
Package Air
Conditioner
4.3. Arrangement of the Installation of PCB and H-LINK Terminals
As described in the figure below, 8 PCBs which are built into HARC-BX E and H-LINK
Terminals correspond to the both sides of the same numbers, 1 to 8 within
respectively.
In order that PCB would be able to communicate with unit it must be connected to same
H-LINK than unit.
WIRING CONNECTION
No. Wiring Method
/
4 11
Remarks
Non-polar
Non-polar Refer
to Sec.4.3
and