Hitachi SET FREE Serie Manual De Instrucciones página 59

ELECTRIC WIRING

Heat recovery system
Outdoor unit power source
1
ELB
2
CB
3
S
4
Outdoor
unit C
5
7
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
RAS-8FSXNSE
RAS-10FSXNSE
RAS-12FSXNSE
RAS-14FSXNSE
RAS-16FSXNSE
RAS-18FSXNSE
RAS-20FSXNSE
RAS-22FSXNSE
RAS-24FSXNSE
RAS-5FSXNPE
RAS-6FSXNPE
RAS-8FSXNPE
RAS-10FSXNPE
RAS-12FSXNPE
RAS-14FSXNPE
RAS-16FSXNPE
RAS-18FSXNPE
* 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)
EN60335-1.
49 PMML0479 rev.2 - 02/2018
3N~400V 50 Hz
1 1
ELB
ELB
2 2
CB
CB
3 3
S
S
4 4
Outdoor Outdoor
unit B unit A
5 5
7
maximum
running
Power supply
current
(a)
15.5
21.5
24.0
29.5
3N~ 400V/50Hz 33.0
37.5
44.5
45.0
53.0
11.5
12.0
15.0
19.0
3N~ 400V/50Hz
23.0
28.0
33.0
34.5
1
ELB (Earth leakage breaker)
CB (Circuit breaker)
2
S (Main switch)
3
Power source wiring (O.U)
4
Earth wiring (O.U)
5
6 Transmission wiring (O.U ~I.U)
Transmission wiring (O.U ~O..U)
7
8
Transmission wiring (CH-Box - CH-Box)
Transmission wiring (I.U - CH-Box)
9
10 Power source wiring (I.U - CH.Box))
11 Earth wiring (I.U - CH-Box)
Indoor unit side
6
9
CH
10
10
S
CB
Indoor
ELB
unit
Indoor unit, CH-Box power source
1N~230V 50 Hz
 
Power
source cable transmitting
size cable size
en60335-1 en60335-1
(1) (1)
*1 (mm ) *1 (mm )
2 2
4.0 0.75
6.0 0.75
6.0 0.75
6.0 0.75
6.0 0.75
10.0 0.75
10.0 0.75
10.0 0.75
10.0 0.75
2.5 0.75
2.5 0.75
4.0 0.75
4.0 0.75
6.0 0.75
6.0 0.75
10.0 0.75
10.0 0.75
8 8
9
11 11
CH
10 10
10 10
Indoor
11 unit 11

main
switch

elB

CB
(poles /
(a)
nominal
m / ma)
current
(a)
20 20
25 25
25 25
4/40/30
32 30
40 35
40 40
50 50
4/63/30 50 50
63 63
30 15
30 15
30 20
60 20
4/40/30
60 25
60 30
60 40
60 40