Hitachi RPFC-2.0TNE1NH, Installation And Maintenance Manual, Page: 22 / 24

20
NOTES
:
1
)
Follow local codes and regulations when selecting field wires, and all the above are the minimum size.
2
)
The wire sizes marked in the table are selected at the maximum current of the unit according to the
European Standards
,
EN 60335
-
1. Use the wires which are not lighter than the ordinary polychloroprene
sheathed flexible cord (code designation H07RN-F).
When connecting the terminal block using flexible cord, make sure to use the round crimp-style terminal
for connecting to the power supply terminal block.
Place the round crimp-style terminals on the wires up to the covered
part and secure them in proper place.
When connecting the terminal block using a single core
wire, be sure to perform curing.
3
)
When transmitting cable length is more than 15 meters, a larger wire size should be selected.
4
)
Use a shielded cable for the transmitting circuit and connect it to the ground.
Flexible cord
covered part
Round crimp-style terminal
Terminal
Single core wire
5
)
If the power cables are connected in series, add each unit’s maximum current and select
below wires:
*
If the current exceeds 63A
,
do not connect cables in series
.
Model
Capacity(HP)
Power
Supply
ELB
Power Source
Cable Size
Transmitting Cable
Size
Nominal
Current(A)
Nominal
Sensitive
Current (mA)
EN 60335
-
1 EN 60335
-
1
2.0
220
-
240
~,
50Hz
20 30
2
3
×
2
.
5mm
2
4
×
1
.
5mm
3.0
220
-
240
~,
50Hz
32 30
2
3
×
2
.
5mm
2
4
×
1
.
5mm
4.0 220
-
240
~,
50Hz 40 30
2
3
×
4
.
0mm
2
4
×
1
.
5mm
5.0/6.0/6.5 380
-
415V 3N
~,
50Hz 32 30
2
5
×
2
.
5mm
2
4
×
1
.
5mm
Max. Running Current(A): REFER TO NAMEPLATE
Current i(A)
2
Wire Size(mm )
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
*
Selection According to EN 60335-1
Installation and Maintenance
10.5 Electrical Installation
●
Use an ELB (Electric Leakage Breaker). If not used, it may cause an electric shock or a fire.
●
Do not operate the system until all the check points have been cleared
.
ground and the terminal of the electrical parts. If not, do not operate the system until the electrical
leakage is found and repaired
.
(B) Ensure that the stop values of the outdoor unit are fully opened and then start the system.
(
A
)
Ensure that the insulation resistance is more than 2M Ω
,
by measuring the resistance between