Hitachi RAS-8HNCE - Page 41

Electrical wiring
29
PMML0317A rev.1 - 11/2013
ENGLISH
15.3.2 Wire size

Connection wiring
Recommended minimum sizes for eld provided wires:
Model Power supply
Power source
cable size
Transmitting
cable size
EN60 335-1 EN60 335-1
All Indoor Units
1~ 230V 50Hz
0.75 mm²
0.75 mm²
RAS-3HVNP1E
4.0 mm²
RAS-(4-6)HVNP1E
6.0 mm
2
RAS-4HVRNS3E
6.0 mm
2
RAS-(4-6)HNP1E
3N~ 400V 50Hz
2.5 mm
2
RAS-4HRNS3E
4 mm
2
RAS-(8-10)HNPE
6.0 mm
2
RAS-(8-10)HNCE
6.0 mm
2
N O T E
• Follow local codes and regulations when selecting eld wires,
Circuit breakers and Earth Leakage breakers
• Use the wires which are not lighter than the ordinary polychlo-
roprene sheathed exible cord (code designation H05RN-F)

Main switch protection
Select the main switches in according to the next table:
Model Power supply
Max. current
(A)
CB (A)
ELB (no.
poles/A/mA)
All Indoor Units 1~ 230V 50Hz 5.0 6 2/40/30
ELB: Earth switch; CB: Circuit braker
IVX Premium series
Outdoor unit
MC
(A)
CB
(A)
ELB
RAS-3HVNP1E
21.5 25
2/40/30
RAS-4HVNP1E
30.5 40
RAS-5HVNP1E
30.5 40
RAS-6HVNP1E
30.5 40
RAS-4HNP1E
14.0 20
4/40/30
RAS-5HNP1E
14.0 20
RAS-6HNP1E
16.0 20
RAS-8HNPE
24.0 30
RAS-10HNPE
24.0 30
IVX Standard series
Outdoor unit
MC
(A)
CB
(A)
ELB
RAS-8HNCE 24.0 30
4/40/30
RAS-10HNCE 24.0 30
ES series
Outdoor unit
MC
(A)
CB
(A)
ELB
RAS-4HVRNS3E 28.0 32 2/40/30
RAS-4HRNS3E 15.0 20 4/40/30
15.3.3 H-LINK II System
N O T E
The H-LINK II system can not be applied to the cycle with the old H-LINK model.
1 Application
The new H-LINK II connecting each indoor unit and outdoor unit for up to 64 refrigerant cycles (up to 160 indoor unit per H-LINKII),
and connecting wires for all indoor units and all outdoor units in series.
2 Specications
- Transmission Wire: 2-Wire.
- Polarity of Transmission Wire: Non-Polar Wire.
- Maximum Outdoor Units To Be Connected: 64 Units per H-LINK II system.
- Maximum Indoor Units To Be Connected: 160 Units per H-LINK II system.
- Maximum Wiring Length: Total 1000m (including CS-NET). In case that the total wiring length is longer than 1000m, contact
the Hitachi dealer.
- Recommended Cable: Twist Pair Cable with Shield, over 0.75mm2 (Equivalent to KPEV-S).
- Voltage: 5V.
N O T E
Do not make a wiring in a loop.
3 Dip Switch Setting of Indoor PCB and Outdoor PCB.
It is required to set dip switches of every indoor unit and outdoor unit.