Hitachi RAS-3FSVNE Betriebshandbuch Seite 30

14
ELECTRICAL WIRING
22
14.3.2. WIRE SIZE
Recomended minimum sizes for field provided wires:
Model Power Source
All Indoor Units 220-240V/1~/50Hz
RAS-3FSVNE
RAS-4FSVNE 220-240V/1~/50Hz
RAS-5FSVNE
The above wire sizes marked with  are selected at
-
the maximum current of the unit according to the
European Standard, EN60 335-1.
The above wire sizes marked with  are selected at
-
the maximum current of the unit according to the wire,
MLFC (Flame Retardant Polyflex Wire)
manufactured by HITACHI Cable Ltd. Japan.
In case that the power cables are connected in series,
add each unit maximum current and select according to
the next table.
Selection according to
EN60 335-1
Wire Size
Current i (A)
(mm²)
I ≤ 6
0.75
6 < i ≤ 10
1
10 < i ≤ 16
1.5
16 < i ≤ 25
2.5
25 < i ≤ 32
4
32 < i ≤ 40
6
40 < i ≤ 63
10
63 < i


In case that current exceeds 63 A do not connect cables in
series
NOTE:
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
-
polychloroprene sheathed flexible cord (code
designation H05RN-F)
Select the main switches in according to the next table :
Model Power Source
220-240V 1~
All Indoor Units
50Hz
RAS-3FSVNE
220-240V 1~
RAS-4FSVNE
50Hz
RAS-5FSVNE
Max. Current
5 A
21 A
28 A
29 A
Selection according to MLFC
(at cable Temp. Of 60 ºC)
Wire Size
Current i (A)
(mm²)
I ≤ 15
0.5
15 < i ≤ 18
0.75
18 < i ≤ 24
1.25
24 < i ≤ 34
2
34 < i ≤ 47
3.5
47 < i ≤ 62
5.5
62 < i ≤ 78
8
78 < i ≤ 112 14
112 < i ≤ 147
22
Max. CB ELB no.
Current (A) poles/A/mA
5 A 6
21 A 25
2/40/30
28 A
32
29 A
Power Source Cable Size
EN60 335-1 MLFC
 
0.75 mm² 0.5 mm²
2.5 mm² 3.5 mm²
4 mm² 3.5 mm²
4 mm² 3.5 mm²
14.3.3. H-LINK SYSTEM
1. Application
The new H-LINK wiring system requires only two
transmission wires connecting each indoor unit and
outdoor unit for up to 16 refrigerant cycles, and
connecting wires for all indoor units and all outdoor units
in series.
NOTE:
The H-LINK system can not be applied to the cycle
with the old model unit or the unit with old
transmission
This H-LINK system can be applied to the following
models.
Indoor Unit
RCI- FSN1E
RCD- FSN
RPC- FSNE
RPI- FSNE
RPK- FSNM
RPF- FSNE
RPFI- FSNE
2. Features
The H-LINK has the following features and specifications:
Features:
-
The total wiring length is remarkably reduced.
-
Only one connection is required for the wiring
between the indoor unit and outdoor unit.
-
Easy wiring connection to the central controllers.
Specifications:
-
Transmission Wire: 2-Wire
-
Polarity of Transmission Wire: Non-Polar Wire
-
Maximum Outdoor Units To Be Connected: 16 Units
per H-LINK system.
-
Maximum Indoor Units To Be Connected: 16 Units
per cycle and 112 Units per H-LINK system
(considering that we are only connecting FSVN units)
-
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
Transmitting Cable Size
EN60 335-1 MLFC
 
0.75 mm² 0.5 mm²
Outdoor Unit
RAS- FSVNE