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Model
LS-H076QLL0_QGL0_QGA2 LS-H096QLL1_QGL1 LS-H096QGA2_QLA2_QLA1_QPA1 LS-H126RLM1 AS-H076QLA0_QNA0_QLL0 AS-H096RLL0_RNA0 AS-
Pages
119
Size
6.39 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
ls-h076qll0-qgl0-qga2-ls-h096qll1-qgl1-ls-h096qga2.zip
Date

LG LS-H076QLL0_QGL0_QGA2 / LS-H096QLL1_QGL1 / LS-H096QGA2_QLA2_QLA1_QPA1 / LS-H126RLM1 / AS-H076QLA0_QNA0_QLL0 / AS-H096RLL0_RNA0 / AS- Service Manual ▷ View online

10
Connection of the pipes-
Outdoor
Align the center of the pipings and
sufficiently tighten the flare nut by hand.
Finally, tighten the flare nut with torque
wrench until the wrench clicks.
When tightening the flare nut with torque
wrench, ensure the direction for tightening
follows the arrow on the wrench.
A
B
Outdoor unit 
Gas side piping
(Bigger diameter)
Liquid side
piping
(Smaller
diameter)
Torque 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
• Bad case
Following bending type from right to left could
cause problem of pipe damage.
CAUTION
ENGLISH
11
Connect the cable to the Indoor unit.
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.)
The earth wire should be longer than the common wires.
The above circuit diagram is subject to change without notice.
When installing, refer to the circuit diagram on the control box inside Indoor Uint.
CONNECTING THE CABLE BETWEEN INDOOR UNIT AND OUTDOOR UNIT
Air 
Conditioner
Main power source
If a power plug is not to be used, provide a circuit breaker
between power source and the unit as shown below.
Circuit Breaker
Use a circuit
breaker or time
delay fuse.
CAUTION
• The above circuit diagram is subject to change without notice. 
• Be sure to connect wires according to the wiring diagram.
• Connect the wires firmly, so that not to be pulled out easily.
• Connect the wires according to color codes by referring the
wiring diagram.
CAUTION
The power cord connected to the "A" unit should be
complied with the following specifications
(Type "B" approved by HAR or SAA).
• When installing, refer to the circuit diagram on the
Control Box of Indoor Unit.
• When installing, refer to the wiring diagram on the
Control Cover Inside Outdoor Unit.
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
7k~14k
18k
24k~28k
1.0
1.5
2.5
Cable Type(B) H07RN-F H07RN-F H07RN-F
NORMAL
CROSS
-SECTIONAL
AREA
Grade
30k, 32k
36k, 38k
0.75
0.75
Cable Type(B) H07RN-F H07RN-F
NORMAL CROSS
-SECTIONAL AREA
Grade
(mm
2
)
(mm
2
)
(mm
2
)
The power connecting cable connected to the indoor
and outdoor unit should be complied with the following
specifications
(Type "B" approved by HAR or SAA).
NORMAL
CROSS-SECTIONAL
AREA 0.75mm
2
 
CAUTION
RED
RED
BLUE
BLUE
1(L)
Terminals on the indoor unit
2(N)
3
1(L)
Terminals on the outdoor unit
2(N)
3
BROWN
GREEN/YELLOW
BROWN
GREEN/YELLOW
• Cooling model
Color of Wires
Color of Wires
• Heat pump model
Color of Wires
Color of Wires
1(L)
Terminals on the outdoor unit
Terminals on the outdoor unit
Terminals on the indoor unit
Terminals on the indoor unit
1(L)
1(L)
1(L)
2(N)
2(N)
2(N)
3
4
3
4
2(N)
BROWN BLUE
G/Y
BLACK
RED
BROWN BLUE
G/Y
RED
BROWN
BROWN BLUE
BLACK
BLACK
G/Y
RED
RED
G/Y
BLUE
BROWN
BLUE GREEN/YELLOW
BROWN
BLUE GREEN/YELLOW
• Inverter model
12
Connect the cable to the
outdoor unit
Remove the control cover from the unit by
loosening the screw.
Connect the wires to the terminals on the
control board individually.
Secure the cable onto the control board with
the cord clamp.
Refix the control cover to the original
position with the screw.
Use a recognized circuit breaker
"A"
between the power source and the unit.
A disconnecting device to adequately
disconnect all supply lines must be fitted.
A
B
C
D
Terminal block
Over 5mm
Cover control
Connecting cable
Connecting cable
After 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.)
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. (Refer to page 11))
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.
Outdoor Unit
7k~14k
18k
24k~28k 30k, 32k 36k, 38k
15
20
30
30
40
Circuit
Breaker
(A)
Grade
CAUTION
CHECKING THE DRAINAGE AND FORMING THE PIPINGS
13
ENGLISH
Form the piping
Form the piping by wrapping the
connecting portion of the indoor unit with
insulation material and secure it with two
kinds of vinyl tapes.
If you want to connect an additional drain
hose, the end of the drain outlet should be
routed above the ground. Secure the drain
hose appropriately.
In cases where the outdoor unit is
installed below the indoor unit perform
the following.
Tape the piping, drain hose and
connecting cable from down to up.
Secure the tapped piping along the exterior
wall using saddle or equivalent.
A
A
B
Taping
Drain
hose
Pipings
Connecting
cable
Trap is required to prevent water
from entering into electrical parts.
Seal small openings
around pipings with a
gum type sealer.
In cases where the Outdoor unit is
installed above the Indoor unit perform
the following.
Tape the piping and connecting cable from
down to up.
Secure the taped piping along the exterior
wall. Form a trap to prevent water entering
the room.
Fix the piping onto the wall by saddle or
equivalent.
C
Seal a small opening 
around the pipings 
with gum type sealer.
Trap
Trap
Checking the drainage
To remove the front panel from the indoor
unit.
Set the air direction louvers up-and-down
to the position(horizontally) by hand.
Remove the securing screws that retain the
front panel. Pull the lower left and right
sides of the grille toward you and lift it off.
Pull the right and
the left side.
To check the drainage.
Pour a glass of water on the evaporator.
Ensure the water flows through the drain
hose of the indoor unit without any leakage
and goes out the drain exit.
B
Drain piping
The drain hose should point downward for
easy drain flow.
C
Do not make drain piping.
Downward slope
Do not raise
Accumulated
drain water
Tip of drain hose 
dipped in water
Air
Waving
Water
leakage
Water
leakage
Ditch
Less than 
50mm gap
Water
leakage
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