LG LS-C186V L2 / LS-H186V L2 Service Manual ▷ View online
Service Manual 17
Installation
CAUTION: Installation Information
For right piping. Follow the instruction below.
Good case
• Press on the upper side of clamp and unfold the tubing to downward slowly.
Bad case
• Following bending type from left to right may cause damage to the turbing.
18 Room Air Conditioner
Installation
Outdoor
Align the center of the pipings and sufficiently tighten
the flare nut by hand.
the flare nut by hand.
Finally, tighten the flare nut with torque wrench until the
wrench clicks.
wrench clicks.
• When tightening the flare nut with torque wrench,
ensure the direction for tightening follows the arrow on
the wrench.
the wrench.
mm
inch
kg.m
Ø6.35
1/4
1.8
Ø9.52
3/8
4.2
Ø12.7
1/2
5.5
Ø15.88
5/8
6.6
Ø19.05
3/4
6.6
Outside diameter
Torque
Outdoor unit
Liquid side piping
(Smaller diameter)
(Smaller diameter)
Gas side
piping
(Bigger
diameter)
piping
(Bigger
diameter)
Torque wrench
Service Manual 19
Installation
Indoor
Connect the cable to the indoor unit by connecting the wires to the terminals on the control board individually
according to the outdoor unit connection. (Ensure that the color of the wires of the outdoor unit and the terminal No.
are the same as those of the indoor unit.)
according to the outdoor unit connection. (Ensure that the color of the wires of the outdoor unit and the terminal No.
are the same as those of the indoor unit.)
Connecting the Cables
CAUTION:
• The above circuit diagram is subject to change without notice.
• The earth wire should be longer than the common wires.
• When installing, refer to the circuit diagram behind the panel front of the indoor unit.
• Connect the wires firmly so that they may not be pulled out easily.
• Connect the wires according to color codes, referring to the wiring diagram.
• When installing, refer to the circuit diagram behind the panel front of the indoor unit.
• Connect the wires firmly so that they may not be pulled out easily.
• Connect the wires according to color codes, referring to the wiring diagram.
CAUTION: If a power plug is not
used, provide a circuit breaker
between power source and the
unit as shown by.
unit as shown by.
CAUTION: The power cord connected to the "A" unit should be selected according to
the following specifications(Type "B" approved by HAR or SAA).
The power connecting cable connecting the indoor and outdoor unit should be
selected according to the following specifications (Type "B" approved by HAR or
SAA).
selected according to the following specifications (Type "B" approved by HAR or
SAA).
Air
Conditioner
Main power source
Circuit Breaker
Use a circuit breake
or time delay fuse.
Use a circuit breake
or time delay fuse.
5k~9k 12k~14k
18k
24k~28k 30k, 32k 36k, 38k
0.75
1.0
1.5
2.5
2.5
5.5
Unit(A)
Indoor
Indoor
Indoor
Indoor Outdoor Outdoor
Cable Type(B) H05VV-F H05VV-F H05VV-F H05VV-F H05RN-F H05RN-F
NORMAL CROSS
-SECTIONAL AREA
Grade
(mm
2
)
5k~9K 12k~14k
18k
24k~28k
0.75
1.0
1.5
2.5
Cable Type(B) H07RN-F H07RN-F H07RN-F H07RN-F
NORMAL
CROSS
-SECTIONAL
AREA
Grade
(mm
2
)
NORMAL
CROSS-SECTIONAL
AREA 0.75mm
CROSS-SECTIONAL
AREA 0.75mm
2
30k, 32k
36k, 38k
0.75
0.75
Cable Type(B) H07RN-F H07RN-F
NORMAL CROSS
-SECTIONAL AREA
Grade
(mm
2
)
20 Room Air Conditioner
Installation
Outdoor
1. Remove the control cover from the unit by loosening
the screw.
Connect the wires to the terminals on the control
board individually.
Connect the wires to the terminals on the control
board individually.
2. Secure the cable onto the control board with the cord
clamp.
3. Refix the control cover to the original position with the
screw.
4. Use a recognized circuit breaker 20A(14k) between
the power source and the unit.
A disconnecting device to adequately disconnect all
supply lines must be fitted.
A disconnecting device to adequately disconnect all
supply lines must be fitted.
Terminal block
Over 5mm
Cover control
Connecting cable
Connecting cable
Outdoor Unit
7k~14k
18k
24k~28k 30k, 32k 36k, 38k
15
20
30
30
40
Circuit
Breaker
(A)
Grade
CAUTION: According to the confirmation of the above conditions, prepare the
wiring as follows.
1. Never fail to have an individual power circuit specifically for the air conditioner. As for the method of
wiring, be guided by the circuit diagram posted on the inside of control cover.
2. The screw 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 cause burn-out of the wires.)
sure that they are all tightly fastened. (If they are loose, it could cause burn-out of the wires.)
3. Specification of power source.
4. Confirm that electrical capacity is sufficient.
5. See to that the starting voltage is maintained at more than 90 percent of the rated voltage marked on
the name plate.
6. Confirm that the cable thickness is as specified in the power source specification.
(Particularly note the relation between cable length and thickness.
7. Always install an earth leakage circuit breaker in a wet or moist area.
8. The following would be caused by voltage drop.
• Vibration of a magnetic switch, which will damage the contact point, fuse breaking, disturbance of the normal function
of the overload.
9. The means for disconnection from a power supply shall be incorporated in the fixed wiring and have
an air gap contact separation of at least 3mm in each active(phase) conductors.
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