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 2MΩ, by measuring the resistance between
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