26
Electrical Installation
5-1. Electrical Wiring and Electric Control Box
1. Saftey precautions
The following contents are related to safety, please strictly follow them!
Warnings
• All wires and grounds shall conform to the local electrical regulations.
• Refer to the electrical parameters and the wiring diagram to complete layout and wiring and ensure firm wiring.
• Provide the independent power supply with a current circuit breaker matched with the working voltage of the unit. Do not share power supply
with other electrical products to avoid overload risk.
• The wire shall not be in contact with sharp metal plate edges, screw tips, copper pipes, compressors, motors or other moving parts to avoid
damage to the wire to cause danger.
• The manufacturer will not be responsible for any problems caused by unauthorized changes to the internal wiring.
• After the completion of wiring, fix with wire clips to prevent wire damage caused by falling and collision with other parts to cause danger.
• Separate unit wiring by strong and weak current, so as not to affect the communication and operation of the unit.
• All units shall be safely grounded. Improper grounding may cause electric shock. Please ensure that the earth wire is firmly connected to the
grounding terminal and grounding electrode of the unit.
•
There is strong current in the electric cabinet. Before the completion of electrical wiring for the unit, do not power on to avoid causing casualties.
• Before cutting off the power supply of the unit at any time, do not touch the control components and terminal components to avoid electric
shock injury.
• Only connect the terminals with copper wires to avoid corrosion or overheating.
• Refer to the circuit diagram of the unit for the connection of water flow switch and water pump wires.
2. Electrical wiring
• Connect the power line to the main terminal (TB) of the unit distribution box.
• Connect the PCB board of chiller and the modular or unit controller with the wires.
• If the unit is not equipped with a pump, connect the power line of the cold water pump to the corresponding terminal of the cold water pump.
• Ground the unit, the cold pump motor (unit without pump) and all devices to be grounded.
• If the electric heater is provided, connect the power line and the control line to the terminal of the electric heater.
• Refer to the circuit diagram for specific wiring.
Warnings
• T
he installer shall provide the unit with a power supply with correct voltage and a suitable circuit breaker, and the supply voltage shall
fluctuate within the range of ±10% of the standard value.
• Before the completion of electrical wiring,do not power on to avoid causing casualties.
PKGP-SVX18B-EN
19
Electrical Installation
Safety Precautions
The following contents are related to safety, please
strictly follow them!
Warnings
1. All wires and grounds shall conform to the local
electrical regulations.
2. Refer to the electrical parameters and the wiring
diagram to complete layout and wiring and ensure
firm wiring.
3. Provide the independent power supply with a
current circuit breaker matched with the working
voltage of the unit. Do not share power supply with
other electrical products to avoid overload risk.
4. The wire shall not be in contact with sharp metal
plate edges, screw tips, copper pipes, compressors,
motors or other moving parts to avoid damage to
the wire to cause danger.
5. The manufacturer will not be responsible for any
problems caused by unauthorized changes to the
internal wiring.
6. After the completion of wiring, fix with wire clips to
prevent wire damage caused by falling and collision
with other parts to cause danger.
7. Separate unit wiring by strong and weak current, so
as not to affect the communication and operation of
the unit.
8. All units shall be safely grounded. Improper
grounding may cause electric shock. Please ensure
that the earth wire is firmly connected to the
grounding terminal and grounding electrode of the
unit.
9. There is strong current in the electric cabinet. Before
the completion of electrical wiring for the unit, do
not power on to avoid causing casualties.
10. Before cutting off the power supply of the unit at
any time, do not touch the control components and
terminal components to avoid electric shock injury.
11. Only connect the terminals with copper wires to
avoid corrosion or overheating.
12. Refer to the circuit diagram of the unit for the
connection of water flow switch and water pump
wires.
Electrical Wiring
1. Connect the power line to the main terminal (TB) of
the unit distribution box.
2. Connect the PCB board of chiller and the modular or
unit controller with the wires.
3. If the unit is not equipped with a pump, connect
the power line of the cold water pump to the
corresponding terminal of the cold water pump.
4. Ground the unit, the cold pump motor (unit without
pump) and all devices to be grounded.
5. If the electric heater is provided, connect the power
line and the control line to the terminal of the
electric heater.
6. Refer to the circuit diagram for specific wiring.
Warnings
r
e
w
o
p
a
h
t
i
w
t
i
n
u
e
h
t
e
d
i
v
o
r
p
l
l
a
h
s
r
e
ll
a
t
s
n
i
e
h
T
.
1
supply with correct voltage and a suitable circuit
breaker, and the supply voltag
e shall fluc
tuate
within the range of
±
10% of the standard value.
t
o
n
o
d
,
g
n
ir
i
w
l
a
c
ir
t
c
e
l
e
f
o
n
o
i
t
e
l
p
m
o
c
e
h
t
e
r
o
f
e
B
.
2
power on to avoid causing casualties.
PKGP-SVX18B-EN
19
Electrical Installation
Safety Precautions
The following contents are related to safety, please
strictly follow them!
Warnings
1. All wires and grounds shall conform to the local
electrical regulations.
2. Refer to the electrical parameters and the wiring
diagram to complete layout and wiring and ensure
firm wiring.
3. Provide the independent power supply with a
current circuit breaker matched with the working
voltage of the unit. Do not share power supply with
other electrical products to avoid overload risk.
4. The wire shall not be in contact with sharp metal
plate edges, screw tips, copper pipes, compressors,
motors or other moving parts to avoid damage to
the wire to cause danger.
5. The manufacturer will not be responsible for any
problems caused by unauthorized changes to the
internal wiring.
6. After the completion of wiring, fix with wire clips to
prevent wire damage caused by falling and collision
with other parts to cause danger.
7. Separate unit wiring by strong and weak current, so
as not to affect the communication and operation of
the unit.
8. All units shall be safely grounded. Improper
grounding may cause electric shock. Please ensure
that the earth wire is firmly connected to the
grounding terminal and grounding electrode of the
unit.
9. There is strong current in the electric cabinet. Before
the completion of electrical wiring for the unit, do
not power on to avoid causing casualties.
10. Before cutting off the power supply of the unit at
any time, do not touch the control components and
terminal components to avoid electric shock injury.
11. Only connect the terminals with copper wires to
avoid corrosion or overheating.
12. Refer to the circuit diagram of the unit for the
connection of water flow switch and water pump
wires.
Electrical Wiring
1. Connect the power line to the main terminal (TB) of
the unit distribution box.
2. Connect the PCB board of chiller and the modular or
unit controller with the wires.
3. If the unit is not equipped with a pump, connect
the power line of the cold water pump to the
corresponding terminal of the cold water pump.
4. Ground the unit, the cold pump motor (unit without
pump) and all devices to be grounded.
5. If the electric heater is provided, connect the power
line and the control line to the terminal of the
electric heater.
6. Refer to the circuit diagram for specific wiring.
Warnings
r
e
w
o
p
a
h
t
i
w
t
i
n
u
e
h
t
e
d
i
v
o
r
p
l
l
a
h
s
r
e
ll
a
t
s
n
i
e
h
T
.
1
supply with correct voltage and a suitable circuit
breaker, and the supply voltag
e shall fluc
tuate
within the range of
±
10% of the standard value.
t
o
n
o
d
,
g
n
ir
i
w
l
a
c
ir
t
c
e
l
e
f
o
n
o
i
t
e
l
p
m
o
c
e
h
t
e
r
o
f
e
B
.
2
power on to avoid causing casualties.
5 Electrical Installation
