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9.5 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.
(A) Check to ensure that the insulation resistance is more than 2 MΩ, by measuring the
resistance between ground and the terminal of the electrical parts. If not, do not operate the
system until the electrical leakage is found and repaired.
(B) Check to ensure that the stop valves of the outdoor unit are fully opened and then start the system.
● Do not touch any of the parts by hand at the discharge gas side, since the compressor chamber
and the pipes at the discharge side are heated higher than 90℃.
Model
Capacity(Btu/h)
9K
12K
18K
24K
36K
42K/48K/55K
Max. Running Current(A):REFER TO NAMEPLATE
NOTES:
1) Follow local codes and regulations when selecting field wires.
2) The wire sizes marked in the table are selected at the maximum current of the unit according to the
European Standard , EN60335-1.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 connection to the power supply terminal block.
Place the round crimp-style terminals on the wires up to the covered
part and secure in 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 ground .
5) In the case that power cables are connected in series, add each unit maximum current and select
wires below.
*In the case that current exceeds 63A, do not connect cables in series.
Power
Supply
Nominal
Current(A)
220-240~, 50Hz
20
220-240~, 50Hz
20
20
220-240~, 50Hz
220-240~, 50Hz
32
40
220-240~, 50Hz
380-415V 3N~, 50Hz
32
Selection According to EN60335-1
Current i(A)
i≤6
6＜i≤10
10＜i≤16
16＜i≤25
25＜i≤32
32＜i≤40
40＜i≤63
63＜i
Installation and Maintenance
Power Source
ELB
Cable Size
Nominal
Sensitive
EN60335-1
Current (mA)
30
3×1.5mm
30
3×1.5mm
30
3×2.5mm
30
3×2.5mm
30
3×4.0mm
30
5×2.5mm
Terminal
Single core wire
2
Wire Size(mm)
0.75
1
1.5
2.5
4
6
10
*
16
Transmitting Cable
Size
EN60335-1
2
2
4×1.5mm
2
2
4×1.5mm
2
2
4×1.5mm
2
2
4×1.5mm
2
2
4×1.5mm
2
2
4×1.5mm
covered part
Flexible cord
Round crimp-style terminal
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