Hitachi RCIM-1.0FSN4 Installations- Und Betriebshandbuch Seite 41
Indoor units system free
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Electrical wiring
Recommended wiring capacity and size for UTOPIA Series
Model
ELB
Rated
current
(A)
Combination
Indoor
*1
Single Type
5
Twin, Triple, Quad
ELB: Earth Leakage Breaker, I.U.: Indoor Unit, O.U.: Outdoor Unit
?
N O T E
If the total wiring length is more than 20m, refer to Installation and Operation Manual of the outdoor unit.
Example for SET-FREE Series
•
Select wiring capacity according to the following table. Install the ELB and the main switch to each as shown in the figures below.
Heat pump system
Outdoor
unit
Outdoor unit
power source
Main
ELB
switch
Indoor
Indoor unit
*9, *10
power source
*11
Main
ELB
switch
(*) Refer to Installation and Operation Manual of connected outdoor unit for details of wire, ELB and main switch.
Recommended Wiring Capacity and Size for SET-FREE Series
Total
indoor
ELB
unit
Rated current
Switch capacity
capacity
(A) *9
< 7A
15
<10A
20
< 15A
30
ELB: Earth Leakage Breaker
*1): The above wiring line length shows the case that the indoor units are connected in series. (The voltage drop is within 2%.) When the power
source wiring is longer than the above value, select the minimum wiring size and make sure that the voltage drop is within 2%.
31
PMML0363A rev.2 - 08/2016 - P5416559
Main Switch
Rated
Fuse
current
capacity
source
(A)
(A)
Indoor
Indoor
*2
*2
5
5
*13
*13
*13
Indoor
Indoor
unit
unit
unit
*12
*12
*11
*11
Pull box
Power source
Main Switch
Fuse capacity
(A) *10
(A) *10
30
15
30
20
30
30
Wiring Capacity (mm
Transition wiring between
Power
OU and IU
cable
Power supply
Control
circuit
Indoor
< 20m
*3
*4
0.75
1.0
0.75
Outdoor unit
power source
Main
ELB
switch
*12
Indoor unit
*9, *10
power source
Main
ELB
switch
Minimum
Wiring line
wire size
length (m)
*1)
(mm
)
*11
2
2.5
30
4.0
34
6.0
34
)
2
Transition
wiring
Earth
between
wiring
indoor
units
*5
*6
*7
-
2.0
0.75
3.5
Heat recovery system
Outdoor
unit
*13
CH unit
*13
*13
*11
Indoor
Indoor
unit
unit
*12
*11
*11
Pull box
Transition wire
Earth wire
size for control
size (mm
)
2
circuit (mm
)
2
*12
*13
2 Core cable
3.5
0.75 ~ 1.25
Remote
control
switch
cable
*8
0.75
*13
Indoor
unit
*12
*12
*11
Remote
control switch
cable (mm
)
2
0.75
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