Power Supply And Wiring - LG LPUC808FA0 Installation Manual

Power Supply and Wiring

The unit is completely wired internally at the
factory according to general rule of electrical
technology, but local rules, if they are required,
should be complied with.
1. Power supply
Power source must fulfill the following
conditions:
• The working voltage should be higher than
90% and lower than 110% of the rated
voltage marked on the name plate.
• The starting voltage should be higher than
85% of the rated voltage marked on the
name plate.
2. Wiring
After the confirmation of the above conditions, prepare the wiring as follows:
• Use the power supply cord(Rubber
insulation, type Ho7RNF approved by HAR
or SAA) suitable for the product's
electriccal capacity.
UNIT
3Ø 220V
72K/80K 8.0mm
93K/100K 8.0mm
• Provide a recognized circuit breaker as
below between power source and unit.
A disconnection device to adequately
disconnect all supply lines must be fitted.
(for service operations)
UNIT
20K/28K/ H/P
30K/40K
C/O
H/P
44K/50K
C/O
H/P
80K/100K
C/O
Conductor
3Ø 380V
5.5mm
2
2 5.5mm
Circuit breaker capacity
30A
30A
40A
40A
50A
50A
Power source voltage
working voltage
Starting voltage
• The screws which fasten the wiring in the
casing of electrical fittings are liable to
come loose from vibrations to which the
unit is subjected during the course of
transportation. Check them and make sure
that they are all tightly fastened.
(If they are loose, it could give rise to burn-
out of the wires.)
2
• See to it that the starting voltage is
2
maintained at more than 90 percent of the
rated voltage marked on the name plate.
• The following troubles would be caused by
voltage drop-down.
Vibration of a magnetic switch, damage on
the contact point there of, fuse breaking,
disturbance to the normal function of a
overload protection device.
Heater
72K/80K
93K/100K
Installation of Unit
Voltage
Starting point
Time
Conductor
3Ø 220V
14mm
2
22mm 2
Installation Manual 15