Wire Size - Hitachi UTOPIA R32 Series Technical Catalogue

10 Electrical wiring
System wiring diagram
?
N O T E
Take care with the connection of the operating line. Incorrect connection may cause a failure of the PCB.
Power source from the outdoor unit to the indoor unit
Number 0 System
L1 L2 L3 L1 L2 L3 N N
Outdoor unit
3
Indoor Unit
TB Terminal board
CB Circuit Breaker (field supplied)
ELB Earthleakage Breaker (field supplied)
A Power source from the outdoor unit to the indoor unit
___ Field Wiring
Field supplied
Optional Accessory

10.4.2 Wire size

Recommended minimum sizes for field provided wires:
Use wires which are not lighter than the ordinary polychloroprene sheathed flexible cord (code designation 60245 IEC
57).
Model
All Indoor Units
(except 8, 10, 16 and 20HP)
RAS-3HVRC2
RAS-(4-6)HV(R/N)(C/P)2E
RAS-(4-6)H(R/N)(C/P)2E
?
N O T E
Follow local codes and regulations when selecting field wires, Circuit breakers and Earth Leakage breakers.
106 TCGB0136 rev.1 - 05/2021
Operating Line
(Shielded Pair Cable)
DC5V (Non-Pole
Transmission,
H-LINK System)
Indoor Unit
Remote control switch
(Twisted shielded pair cable)
Power supply
1~ 230V 50Hz
or
1~ 220-240V 50Hz
(depending on the model)
1~ 230V 50Hz
3N~ 400V 50Hz
Independent power source of outdoor unit and indoor unit
Number 0 System
Outdoor unit
L1 L2 L3 N
3
3
Power source cable size
EN60 335-1
0.75 mm²
4.0 mm
2
6.0 mm
2
4.0 mm
2
Operating Line
(Twisted Shielded
Pair Cable)
DC5V (Non-Pole
Transmission,
H-LINK System)
Indoor Unit Indoor Unit
Remote control switch
(Twisted shielded pair
cable)
Transmitting cable size
EN60 335-1
0.75 mm²