17
Electrical
NOTICE:
Scroll compressor is adopted in 380V water chiller and power reverse-phase & open phase
protection controllers are installed in the water chiller, so the water chiller shall be energized
for inspection before starting. If the green light of the phase sequence control in the electric
control box brightens, the phase sequence is correct. If the red light brightens, it means reverse
phase, and any two phases of the power line shall be exchanged with each other. If the yellow
light brightens, it means open phase and it is necessary to cut off the electricity for inspection.
If the reverse phase or open phase appears, the water chiller will automatically stop running
or starting.
A: Mini type
Model
Power supply
(V/Hz/Ph)
Full load
current of the
water pump
FLA(A)
Rated
current of the
compressor
RLA(A)
Rated
current
of the fan
FLA(A)
Minimum
current of the
water unit
circuit
MCA(A)
Recommended
fuse
specification
REC(A)
Recommended
circuit breaker
specification
(A)
Minimum
specification
of the power
supply copper
core wire
diameter
(mm
2
)
0305R
380-415/50/3
1.45
6.01
0.4*2
12.85
16
16
2.5
0306R
220/50/1
3.65
18.78
0.4*2
35.4
50
50
6
0505R
380-415/50/3
1.45
7.97
0.7*2
14.1
20
20
2.5
0605R
380-415/50/3
1.45
10.02
0.7*2
18.85
25
25
4
0755R
380-415/50/3
1.45
13.77
0.7*3
20.4
25
25
4
B: Standard type
Model
Power supply
(V/Hz/Ph)
Full load
current of the
water pump
FLA(A)
Rated
current of the
compressor
RLA(A)
Rated
current
of the fan
FLA(A)
Minimum
current of the
water unit
circuit
MCA(A)
Recommended
fuse
specification
REC(A)
Recommended
circuit breaker
specification
(A)
Minimum
specification
of the power
supply copper
core wire
diameter
(mm
2
)
0606R
220/50/1
3.65
20*2
4.8
60
80
80
16
1005R
380-415/50/3
1.45
8.2*2
1.6
23.5
32
32
6
1205R
380-415/50/3
2.6
11.2*2
1.6*2
34.36
50
50
10
1505R
380-415/50/3
2.6
14.9*2
4.2*2
36.6
50
50
10
2005R
380-415/50/3
3.7
17*2
4.2*2
42.1
63
63
16
• The difference between the power voltage and the standard voltage shall not exceed 10 percent of the
standard value.
• Rated current(RLA)=the current of the machine under the ARI or UL standard conditions
• Minimum circuit current(MCA)=maximum loadx1.25+sum of the extra load (to decide the diameter of
the wire)
Electrical data -50Hz
