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
46 Room Air Conditioner
Schematic Diagram
DISPLAY ASSEMBLY
– 6871A20227
TOP VIEW
– 6871A90476C
TOP VIEW
– 6871A20194
TOP VIEW
BOTTOM VIEW
BOTTOM VIEW
– 6871A20391
TOP VIEW
BOTTOM VIEW
C01A
C01A
C01A
88SEG
C01A
C01A
C01A
88SEG
BOTTOM VIEW
Service Manual 47
Troubleshooting Guide
Troubleshooting Guide
INDOOR UNIT
OUTDOOR UNIT
INDOOR UNIT
OUTDOOR UNIT
HEAT
EXCHANGE
(EVAPORATOR)
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(EVAPORATOR)
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
EXCHANGE
(CONDENSER)
HEAT
EXCHANGE
(CONDENSER)
EXCHANGE
(CONDENSER)
COMPRESSOR
COMPRESSOR
ACCUMU
LATOR
LATOR
GAS SIDE
GAS SIDE
3-WAY VALVE
LIQUID SIDE
LIQUID SIDE
3-WAY VALVE
CAPILLARY TUBE
CAPILLARY TUBE
CHECK VALVE
(Heating Model only)
COOLING
HEATING
REVERSING
VALVE
(Heating Model Only)
VALVE
(Heating Model Only)
(1) Cooling Only Models
Refrigeration Cycle Diagram
(2) Cooling & Heating Models
48 Room Air Conditioner
Troubleshooting Guide
CAUTION:* Capicity is based on standard length and maximum allowance length
is the basis of reliability.
* Oil trap should be installed per 5~7 meters.
Outdoor unit
Indoor unit
A
B
A
Oil trap
Outdoor unit
Indoor unit
B
In case more than 5m
7k~14k
3/8"(Ø9.52)
1/4"(Ø6.35)
4 or 7.5
7
15
20
1/2"(Ø12.7)
1/4"(Ø6.35)
4 or 7.5
7
15
20
1/2"(Ø12.7)
1/4"(Ø6.35)
4 or 7.5
15
30
20
18k~28k
5/8"(Ø15.88)
1/4"(Ø6.35)
4 or 7.5
15
30
20
5/8"(Ø15.88)
3/8"(Ø9.52)
4 or 7.5
15
30
30
30k~38k
5/8"(Ø15.88)
3/8"(Ø9.52)
7.5
15
30
30
3/4"(Ø19.05)
3/8"(Ø9.52)
7.5
15
30
50
Pipe Size
Capacity
(Btu/h)
GAS
LIQUID
Additional
Refrigerant
(g/m)
Max.
Length
A (m)
Max.
Elevation
B (m)
Standard
Length
(m)
Pipe Length and the Elevation
Service Manual 49
Troubleshooting Guide
2-way, 3-way Valve
2-way Valve (Liquid Side)
3-way Valve (Gas Side)
Shaft position
Shaft position
Service port
Closed
Closed
Closed
(with valve cap)
(with valve cap)
(with cap)
Open
Closed
Open
(counter-clockwise)
(clockwise)
(push-pin or with
vacumm pump)
Open
Open
Closed
(with valve cap)
(with valve cap)
(with cap)
Closed
Open
Open
(clockwise)
(counter-clockwise)
(connected manifold
gauge)
Open
Open
Open
(with charging
cylinder)
Open
Open
Open
(with charging
cylinder)
Open
Open
Open
Open
Works
Shipping
Air purging
(Installation)
(Installation)
Operation
Pumping down
(Transfering)
(Transfering)
Evacuation
(Servicing)
(Servicing)
Gas charging
(Servicing)
(Servicing)
Pressure check
(Servicing)
(Servicing)
Gas releasing
(Servicing)
(Servicing)
1.
2.
3.
4.
5.
6.
Valve cap
Open position
Closed position
Closed position
Pin
Service
port
port
Service
port cap
port cap
To outdoor unit
Flare nut
To
piping
connection
piping
connection
To outdoor unit
Hexagonal wrench (4mm)
Open position
Closed position
Closed position
To
piping
connection
piping
connection
Flare nut
Open
(with charging cylinder)
Open
(with charging cylinder)
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