Hitachi RAS-(4-6)HVRNS2E - Page 104

4 Electrical Wiring
94
SMGB0064 rev.0 - 08/2011
Terminal board
Circuit breaker
Earth leakage breaker
Fiel d wiring
Field-supplied
Optional accessory
Operating line
(shielded twisted pair cable
or shielded pair cable)
Power source from the outdoor unit
to the indoor unit
Independent power source of outdoor unit
and indoor unit
Operating line
(twisted shielded pair cable
or shielded pair cable)
DC5V (non-pole
transmission,
H-LINK system).
DC5V (non-pole
transmission,
H-LINK system).
Indoor unitIndoor unit
Outdoor unit
of system no. 0
Outdoor unit
of system no. 0