Hitachi HRNM Série Manuel D'installation page 44

ELECTRICAL WIRING
32
ATTENTION:
Pay attention to the connection of the operating line. Incorrect connection may cause the failure of PCB.
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Models: RAS-8HRNM
RAS-10HRNM
RAS-12HRNM
Earth Leakage
Breaker
Main Switch
3N
400V / 50Hz
3N
400V / 50Hz
3N 1N
230V / 50Hz 400V/50Hz
: Terminal Board
: Printed Circuit Board
: Field Wiring
: Field Wiring
: Field-Supplied
: Optional Accessory
NOTE:
In case that the indoor unit individual operarion is needed, remote control switch wiring between indoor unit (A,B) are not
-
necessary.
No.0 System
Outdoor Unit
Operating Line
(Twisted Shielded Pair Cable or Twisted Cable)
DC5V (Non-Pole Transmission,
H-LINK System)
Indoor Unit
Max. 4 Units per Refrigerant Cycle
No.1 System
Outdoor Unit
Indoor Unit
No.1 System
Indoor Units
Remote Control
Switch