LG LM-3060HL Service Manual ▷ View online
- 8 -
Refrigeration Cycle Diagram
MODEL
A-UNIT
LM-3060HL
B/C-UNIT
Pipe size (Diameter: in)
Gas
Liquid
1/2"
1/4"
3/8"
1/4"
MAX.
Max
Piping length
Elevation
15
5
Unità esterna
Unità interna
Accumulatore
Compressore
Silenziatore
Valvola di
non ritorno
non ritorno
SUB CAPI TUBE
CHECK VALVE
Tubo capillare
Tubo capillare
Tubo capillare
HEATING
COOLING
Valvola a
solenoide
solenoide
Valvola a
solenoide
solenoide
Valvola a
solenoide
solenoide
Valvola a
solenoide
solenoide
Condotto
gas
gas
Pressostato -
alta pressione
alta pressione
Condotto
liquido
liquido
Valvola
a 4 vie
a 4 vie
Valvola
Unità A
Unità B
Unità C
- 9 -
Wiring Diagram
1. Indoor Unit
2. Outdoor Unit
N
N
MAIN P.C.B
CONNECTING CABLE
SIGNAL CABLE
SW2
3854AR3449A
SW1
RD
BK
WH
WH
WH
WH
WH
BK
MAIN P.C.B
ASM (DC)
WH
WH
WH
BL
BL
TRANS
BK
BK
ZNR1
CAPACITOR
(400VAC.0.9uF)
BK
BK
BK
RD YL BR
FAN
MOTOR
OR BL
BK
1
OPERATION
SLEEP
TIMER
DEICER
2
3
1
2
3
4
1
2
3
4
4
1
2
3
5 4 3 2
1
4
5
6
7
WH
OR
YL
PK
BL
PK
BL
STEP
DISPLAY
P.C.B ASM
P.C.B ASM
MOTOR
FORCED
OPERA
TION
SWITCH
(AC POWER)
1(BR)
1(BK) 2(WH) 3(GN)
2(BL)
(DC 5V)
(DIP-SW)
TO OUTDOOR UNIT
FUSE1
CN-DA
T
A
CN-STEP
CN-AC/DC
CN-AC/DC
CN-DISP
CN-TH
CN-F
AN
CN-TRANS2
RY1 LOW
RY2 MED
RY3 HI
THERM.STOR
250V/T2A
ASM (AC)
1
1
RECEIVER ASM
2
3
4
5
6
4
5
6
2
3
1(BK)
1(BR) 2(BL) 1(BR) 2(BL) 2(WH) 2(BK)
2(WH) 3(GN)
MAIN P.C.B
CN-INOOR
CN-I
TRANS
FUSE(230V
,
T3.15A)
R
YB(COMP)
R
Y7(Y7HI)
R
Y6(LOW)
R
Y5
RK
WH
RD
BL
YL
RD
BK
BK
BL
BL
BL
BL
BK
WH
GN
GN/YL
GN/YL
TERMINAL
BLOCK
(10P)
GN
BR
BL
BR
BK
BR
BR
COMP
CAPACITOR
M/PRESSURE S.W
OLP
TP
MOTOR
C
C
S
S
H
C
F
R
R
BK
BR
BL
T/B
BK
BK
WK
WH
WH
WH
WH
OR
OR
BK
BK
BK
BK
BK
RD
OR
YL
YL
WH
BK
BK
BK
BK
WH
BK
BK
WH
WH
BR
BR
PTCR
WH
NOISE
FILTER
FILTER
2 1
T/B
A/B/C-UNIT
A-UNIT
TO INOOR UNIT
CONNECTING CABLE(AC POWER)
POWER CORD
2H02220F
B/C-UNIT
SIGNAL CCABLE(DC SV)
BL
BL
"A"
SOLENOID
COIL
"B"
SOLENOID
COIL
"C"
SOLENOID
COIL
SOLENOID
COIL
BY-PASS
COIL
REVERSING
BL
BL
BL
BK
MAGNETIC
CONT
ACT
OR
BK
BL
BR
R
Y4
R
Y3
R
Y2
R
Y1
1
2
3
4
5
BK
RD
TRANS
TH1
THERMISTOR
CN2
5 4
3
3
1
3
2
1
2
1
CN3
CN1
4
3 1
3
(1) The function of main control
<INDOOR UNIT>
1. Time Delay Safety Control
• 3 min... The compressor is ceased for 3minutes to balance the pressure in the refrigeration cycle.
(Protection of compressor)
• 2 sec... The indoor fan is ceased for 2sec. to prevent relay noise.
(Protection of fan relay and micro chip)
• 5 sec... The indoor fna is ceased for 5 sec to prevent windy noise at starting unit.
2. Airflow direction Control
• This function is to set the louver at the desired position.
• The procedure is as the following.
• The procedure is as the following.
1st: Press the ON/OFF Button to operate the product.
2nd: Press the Airflow Direction Control Button to activate the louver.
3rd: Repress the Airflow Directin Control Button to set the louver at the desired position.
2nd: Press the Airflow Direction Control Button to activate the louver.
3rd: Repress the Airflow Directin Control Button to set the louver at the desired position.
3. Cooling Mode Operation
• When selecting the Cooling ( ) Mode Operation, the unit will operate according to the setting by the
remote controller and the operation diagram is as following.
- 10 -
Operation Details
0
1
2
3
4
5
6
7
7
°
110
°
ROOM TEMP.
COMP. ON
(SET TEMP. + 0.5°C)
(SET TEMP. + 0.5°C)
COMP. OFF
(SET TEMP. - 0.5°C)
(SET TEMP. - 0.5°C)
SELECTING
FNA SPEED
FNA SPEED
ON
OFF
ON
OFF
ON
SELECTING
FAN SPEED
FAN SPEED
LOW
SPEED
SELECTING
FAN SPEED
FAN SPEED
MORE THAN
3MINS
MORE THAN
3MINS
LOW
SPEED
COMPRESSOR
INDOOR FAN
Settomg point:
Horizontal
Cooling
Cooling
Cooling
Approx 28°
Approx 28°
8 (Close)
Heating
Heating
Heating
Setting range for:
4. Cooling or Heating Mode with Sleep Mode Auto Operation
• When selecting the Cooling ( ) of the Heating ( ) combined with the Sleep Mode Auto Operation ( ),
the operation diagram is as following.
- 11 -
ROOM TEMP
ROOM TEMP
COMP. ON
(SET TEMP. + 0.5°C)
(SET TEMP. + 0.5°C)
COMP. ON
(SET TEMP. - 0.5°C)
(SET TEMP. - 0.5°C)
LOW
SPEED
LOW
SPEED
LOW
SPEED
LOW
SPEED
LOW
SPEED
ON
ON
ON
OFF
OFF
MORE THAN
3MINS
MORE THAN
3MINS
30 MINS
30 MINS
1°C
1°C
COMPRESSOR
INDOOR FAN
ON
LOW
OFF
LOW
LOW
LOW
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
LOW
LOW
LOW
120 MINS
2°C
30Sec
30Sec
30Sec
20Sec
20Sec
20Sec
COMPRESSOR
INDOOR FAN
■
Cooling Mode with the Sleep Mode
• The setting temperture willl be raised by 1°C 30min later and by 2°C 1hour later.
• The opertion will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
• The opertion will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
■
Heating Mode with the Sleep Mode.
• The setting temperature will be dropped by 2°C 2 hours later.
• The operation will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
• The operation will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
COMP. ON
(SET TEMP. + 3°C)
(SET TEMP. + 3°C)
COMP. ON
(SET TEMP.)
(SET TEMP.)
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