LG LS-C322MLD0_MMB0_MMM0 / LS-H322MLD0_MMB0_MMM0 / LS-C366NLD0_NMM0 / LS-H366NLB0_NLD0_NMM0 / S36LHP Service Manual ▷ View online
Room Air Conditioner
SERVICE MANUAL
CAUTION
-BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
-ONLY FOR AUTHORIZED SERVICE PERSONNEL.
MODELS : LS-C322MLD0/MMB0/MMM0
LS-H322MLD0/MMB0/MMM0
LS-C366NLD0/NMM0
LS-H366
LS-C366NLD0/NMM0
LS-H366
N
LB0/NLD0/NMM0
- 10 -
Refrigeration Cycle Diagram
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
(2) Cooling & Heating Models
- 11 -
Pipe length and the elevation
* Capicity is based on standard length and maximum allowance length is the basis of
reliability.
* Oil trap should be installed per 5~7 meters.
CAUTION
Outdoor unit
Indoor unit
A
B
A
Oil trap
Outdoor unit
Indoor unit
B
In case more than 5m
30k/32k
5/8"
3/8"
7.5
15
30
30
(50Hz, 60Hz)
36k/38k
3/4"
3/8"
7.5
20
30
50
(50Hz, 60Hz)
Pipe Size
Capacity
(Btu/h)
GAS
LIQUID
Additional
Refrigerant
(g/m)
Max.
Length
A (m)
Max.
Elevation
B (m)
Standard
Length
(m)
- 12 -
Wiring Diagram
OUTDOOR WIRING DIAGRAM
3854A20051F
OUTDOOR WIRING DIAGRAM
3854A20051G
MOTOR
SH-CAPA.
YL
PILLAR
TERMINAL
TERMINAL
AUTO RESTART
FORCED OPERATION
CN-DISP
CN-L/R
CN-U/D
CN-TH
THERMISTOR
STEP
MOTOR
(UP/DOWN)
STEP
MOTOR
(L/R)
H.V.B ASM
LIMITS S/W
Negative ion
OPTION
STEP
MOTOR
(L/R)
CN-L/R
DISPLAY PCB ASM
INDOOR WIRING DIAGRAM
3854A20065A
TO OUTDOOR UNIT
BL
3(L) 4(N) 5
BR
RD
GN/YL
BL
RD
BR
GN/YL
BR
FUSE
AC250V/T2A
TRIAC
OR
BK
ZNR
CN-POWER
CN-MOTOR
LS-C322MLD0/LS-H322MLD0/LS-C322MMB0/
LS-C322MMM0/LS-H322MMB0/LS-H322MMM0
LS-C322MLD0/LS-C322MMB0/
LS-C322MMM0
LS-H322MLD0/LS-H322MMM0/
LS-H322MMB0
5
(COMM)
3(L)
4(N)
BL
RD
BR
R
S
COMP
RUNNING
CAPACITOR
BL
BL
BR
BL
1(L)
2(N)
TERMINAL BLOCK
BL
12
BK
BR
CN-
P2(N)
CN-COMP2
CN-FAN
OR
OR
FAN
OUTDOOR PCB
CAPACITOR
YL
CN-
P1(L)
CN-
COMM
RD
BK
TERMINAL BLOCK1
TO INDOOR UNIT
POWER INPUT
FUSE(5A)
FUSE(5A)
1
0
2
6
4
8
POWER
RELAY
BR
C
BL
BK
BK
BL
BL
BR
YL
OR
FAN
OR
CAPACITOR
REVERSING
VALVE
BK
BK
SWITCH
HIGH PRESSURE
2
1
BK
OUTDOOR PCB
RUNNING
BL
S
C
COMP
BR
RD
R
CN-
CN-
CN-COMP2
CN-
BR
RD
P2(N)
P1(L)
COMM
RELAY
POWER
0
6
2
8
1
4
CAPACITOR
5
(COMM)
4(N)
TERMINAL BLOCK
1(L)
2(N)
FUSE(5A)
FUSE(5A)
3(L)
POWER INPUT
TO INDOOR UNIT
BR
TERMINAL BLOCK1
CN-4WAY
CN-FAN
(2) Outdoor Unit
• 30K, 32K
(1) Indoor Unit
(1) Indoor Unit