PMML0251A rev.2 - 02/2013
38
Electrical wiring
15.3.2 Wire size
Connection wiring
Recommended minimum sizes for field 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-3HVNPE
4.0 mm²
RAS-(4-6)HVN(P/C)E
6.0 mm
2
RAS-(4-6)HNPE
3N~ 400V 50Hz
2.5 mm
2
RAS-(4-6)HNCE
4 mm
2
RAS-(8-10)HN(P/C)E
6.0 mm
2
N O T E
• Follow local codes and regulations when selecting field wires,
Circuit breakers and Earth Leakage breakers
• Use the wires which are not lighter than the ordinary polychlo-
roprene sheathed flexible cord (code designation H05RN-F)
Main switch protection
Select the main switches in according to the next table:
Model
Power supply Max. cur-
rent (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
CB (A)
ELB
Outdoor unit
MC (A)
RAS-3HVNPE
19.0
20
2/40/30
RAS-4HVNPE
28.0
32
RAS-5HVNPE
28.0
32
RAS-6HVNPE
28.0
32
RAS-4HNPE
11.5
15
4/40/30
RAS-5HNPE
11.5
15
RAS-6HNPE
13.5
15
RAS-8HNPE
24.0
30
RAS-10HNPE
24.0
30
IVX Standard series
CB (A)
ELB
Outdoor unit
MC (A)
RAS-4HVNCE
28.0
32
2/40/30
RAS-5HVNCE
28.0
32
RAS-6HVNCE
28.0
32
RAS-4HNCE
15.0
20
4/40/30
RAS-5HNCE
15.0
20
RAS-6HNCE
15.0
20
RAS-8HNCE
24.0
30
RAS-10HNCE
24.0
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
Specifications
-
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: DC5V.
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.
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