Hitachi SET FREE Serie Manual De Instrucciones página 39

ELECTRIC WIRING

Heat recovery system
Outdoor
unit C
Nº. Part name
ELB (Earth Leakage Breaker)

FUSE or CB

S (main switch)

10.3.2 Cable sizes and main breaker switch
Field minimum recommended wire sizes for power source and transmission and minimum main switches and protections sizes.
Model Power supply
RAS-8FSXN1E
RAS-10FSXN1E
RAS-12FSXN1E 3N~ 400V/50Hz
RAS-14FSXN1E
RAS-16FSXN1E
RAS-5FSXNHE
RAS-6FSXNHE
3N~ 400V/50Hz
RAS-8FSXNHE
RAS-10FSXNHE
RAS-12FSXNHE
* Refer to the NOTES for selection of the power source cable size.
The cross-sections of the cable should be selected for the maximum current of the unit, in accordance with European Standard
(1)
EN60 335-1.
?
N O T E
Do not use cables that are lighter than the normal flexible coated polychloroprene cable (code H05RN-F).
ELB: Earthleakage Breaker (field-supplied), CB: Circuit Breaker (field-supplied), MLFC: Flame Retardant Polyflex Wire. Install main switch and ELB for
each system separately. Select the high response type of ELB that acts within 0.1 second and 4 poles.
29 PMML0392B rev.1 - 07/2016
Outdoor unit power source
3N~ 400V 50Hz
Outdoor Outdoor
unit B unit A
Nº. Part name
Power source wiring (OU)

Earth wiring (OU)

Transmission wiring (OU~IU)


Power
source cable
Maximum
size
running
current
EN60 335-1
(1)
(A)
*1
(mm )
2
15.0 4.0
20.0 6.0
26.5 6.0
29.2 10.0
33.0 10.0
13.0 4.0
13.0 4.0
15.0 4.0
18.7 6.0
20.0 6.0
Indoor unit side
Indoor
unit
Indoor unit, CH unit
power source
1~ 230V 50Hz
Nº.
Transmission wiring (OU~OU)

Power source wiring (IU, CH unit for

Heat Recovery System
Earth wiring (IU, CH unit for

Recovery System

Transmitting

cable size
Earth wire
size
EN60 335-1 Nominal
(1)
(mm )
2
*1 current
(mm )
2
0.75 4.0
0.75 6.0
0.75 6.0
0.75 10.0
0.75 10.0
0.75 4.0
0.75 4.0
0.75 4.0
0.75 6.0
0.75 6.0
Indoor
unit
Part name
)
Heat
)

Main

ELB
switch
Nominal
Nominal
sensitive
current
current
(A) (A)
(mA)
40 30 20
40 30 30
40 30 40
63 30 40
63 30 50
40 30 20
40 30 20
40 30 20
40 30 30
40 30 30

CB
(A)
20
30
40
40
50
20
20
20
30
30