LG HPWI-C20E User manual

Multi Type Room
Air Conditioner
SERVICE MANUAL
INDOOR UNINT
• ROOM TYPE
HPWI-C20E(AMNN076MQA0)
HPWI-C25E(AMNN096MQA0)
HPWI-C35E(AMNN126MRA0)
HPWI-C50E(AMNN186MTA0)
HPWI-C70E(AMNN246MTA0)
• CONVERTIBLE TYPE
HPFI-C50E(AMNN186VBA0)
• CASSETTE TYPE
HPCI-C50E(AMNN186TEA0)
HPCI-C35E(AMNN126TEA0)
• DUCT TYPE
HPDI-C25E(AMNN096BTG0)
HPDI-C35E(AMNN126BTG0)
HPDI-C50E(AMNN186BHA0)
HPI-C2077(A2UN186FA0)
HPI-C3077(A3UN216FA0)
HPI-C4108(A4UN306FA0)
OUTDOOR UNINT

Functions...................................................................................................................................... 3
Product Specifications.................................................................................................................6
Dimensions..................................................................................................................................12
Wiring Diagram ...........................................................................................................................17
Refrigeration Cycle Diagram......................................................................................................19
Operation Details ........................................................................................................................20
Display Function.........................................................................................................................39
Self-diagnosis Function .............................................................................................................39
Installation of Indoor, Outdoor Unit ..........................................................................................40
Operation.....................................................................................................................................80
Disassembly of the parts (Indoor Unit).....................................................................................85
Valve service(3-way)...................................................................................................................92
Cycle Troubleshooting Guide ....................................................................................................96
Electronic Parts Troubleshooting Guide...................................................................................97
Electronic Control Device ........................................................................................................110
Schematic Diagram...................................................................................................................117
Exploded View and Replacement Parts List...........................................................................122
- 2 -
Contents

- 3 -
Functions
• Room temperature sensor. (THERMISTOR)
• Maintains the room temperature in accordance with the Setting Temp.
• Indoor fan is delayed for 5 seconds at the starting.
• Restarting is inhibited for approx. 3 minutes.
• Room/Art Cool/Convertible Type Indoor Unit: High, Med, Low, Chaos
• Cassette Type Indoor Unit: High, Mde, Low, Auto
Indoor Unit
Operation ON/OFF by Remote controller
Sensing the Room Temperature
Room temperature control
Starting Current Control
Time Delay Safety Control
Indoor Fan Speed Control
Operation indication Lamps (LED)
Soft Dry Operation Mode • Both the indoor and outdoor fan
stops during deicing.
• Hot start after deice ends.
• The indoor fan stops until the
evaporator piping temperature will be
reached at 28°C.
Sleep Mode Auto Control
Natural Air Control by CHAOS Logic
Airflow Direction Control
Deice (defrost) control (Heating)
• The fan is switched to intermittent or irreg-
ular operation
• The fan speed is automatically switched
from high to low speed.
• Room/Art Cool/Convertible type Indoor Unit
-- Lights up in operation
-- Lights up in Sleep Mode
-- Lights up in Timer Mode
-- Lights up in Deice Mode
• Cassette type Indoor Unit
-- Lights up in Operation
-- Lights up in Filter replacement
-- Lights up in Timer Mode
-- Lights up in Defrost Mode or Hot Start Operation.
-- Operation procedures when the remote control
can't be used.
• Intermittent operation of fan at low speed.
•
The fan is switched to low(Cooling), med(Heating) speed.
• The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours.
• The louver can be set at the desired posi-
tion or swing up and down automatically.
•
The function will be operated while in any
operation mode with selecting the function.
• The function is to be stopped while it is
operating with selecting the function.
PLASMA
Hot-start Control (Heating)

- 4 -
• If power is on, it will operate to chage capacitor on controller and power relay will operate after about
10sec.
• The final operating freq. of comp. is set the lowest freq. that limited outdoor temp., discharge pipe temp.,
target freq., owing to CT.
• It will be changed the drive voltage of comp. according to operating frequency.
• It is only operated in the heating operation mode except defrosting operation.
• High speed/Low speed
Outdoor Unit
Power relay control
Comp. Freq. control
Overheatng. Protection(Power module)
Freq. speed control(up/down speed)
V/F control
Total current control (over current protection)
DC peak current control
4 way valve control
Outdoor fan motor control
Discharge pipe temp. control
Overpressure protection

- 5 -
Remote Controller
JET COOL
Healthy Dehumidification Operation Mode. ( )
Operation Mode Selection
(Cooling
model only) (Heating
model only)
Cooling Operation Mode.( ) Heating Operation Mode.( ) Auto Operation Mode.( )
Sleep Operation
Fan Operation Mode
Room, Temperature Display
Setting the Time or Timer
Airflow Direction Control
Operation ON/OFF
Temperature Setting
TEMPERATURE LOWHIGH
Timer Selection
ON OFF
Timer Setting
SET
Timer Cancel
CANCEL
Reset
Fan Speed Selection
(Low) (Med) (High) (CHAOS)
: (High: 39°C LOW : 11°C)
Down to 18°C
Up to 30°C
Cooling
: OFF, ON, OFF ON
: Cancel Sleep Mode, Timer ON or Timer OFF
: 1, 2, 3, 4, 5, 6, 7, Off Timer
: Fan Operates without cooling or heating.
Down to 16°C
Up to 30°C
Heating

- 6 -
Product Specifications
HPI-C2077(A2UN186FA0), HPI-C3077(A3UN216FA0)
HPWI-C20E
(AMNN076MQA0) HPWI-C25E (AMNN096MQA0) HPWI-C35E (AMNN126MRA0) HPWI-C50E (AMNN186MTA0)
Model
Item
Cooling Capacitor (Indoor) Btu/h
W
Max. Cooling Capacitor (Outdoor)
Btu/h
W
Heating Capacitor (Indoor) Btu/h
W
Max. Heating Capacitor (Outdoor) Btu/h
W
Moisture Removal l/h
Power Supply Ø, V, Hz
Air Circulation Indoor, Max CMM
Outdoor, Max
Indoor, High
Noise Level (1m) Indoor, Med dB(A)±1
Indoor, Low
Outdoor, Max
Input Cooling W
Heating
Running Current Cooling A
Heating
Motor Output Indoor W
Outdoor
Dimensions Indoor mm
Outdoor (W*D*H)
Net Weight Indoor Kg
Outdoor
Refrigerant R-410A g
Airflow Direction Control(Up & Down)
Remocon Type
Service Valve Luquid inch(mm)
Gas
Sleeping Operation
Connection Cable
7,000 9,000 12,000 18,000
2,051 2,637 3,517 5,274
23,400
6,856
8,000 10,000 13,000 19,000
2,344 2,930 3,809 5,567
25,200
7,384
1.0 1.2 1.7 2.0
1, 220-240, 50
6.5 7.0 9.5 13
56
35 37 40 43
33 34 36 40
30 31 32 37
54
880~2,660
1,210~2,360
4.6~12.1
6.1~11.1
5.3 8.4 14.4 22
68
824 x155 x 260 824 x155 x 260 900 x 156 x 285 1090 x 172 x 314
870 x 320 x 655
77 812
64
1600(at 7.5m)
OO OO
L.C.D Wireless
1/4"(6.35)
3/8"(9.52) 3/8"(9.52) 1/2"(12.7) 1/2"(12.7)
O
4 x 0.75(Includes earth)
Indoor
Outdoor

- 7 -
HPWI-C20E
(AMNN076MQA0) HPWI-C25E (AMNN096MQA0) HPWI-C35E (AMNN126MRA0) HPWI-C50E (AMNN186MTA0) HPWI-C70E (AMNN246MTA0)
HPI-C4108(A4UN306FA0)
Model
Item
Cooling Capacitor (Indoor) Btu/h
W
Max. Cooling Capacitor (Outdoor) Btu/h
W
Heating Capacitor (Indoor) Btu/h
W
Max. Heating Capacitor (Outdoor) Btu/h
W
Moisture Removal l/h
Power Supply Ø, V, Hz
Air Circulation Indoor, Max CMM
Outdoor, Max
Indoor, High
Noise Level (1m) Indoor, Med dB(A)±1
Indoor, Low
Outdoor, Max
Input Cooling W
Heating
Running Current Cooling A
Heating
Motor Output Indoor W
Outdoor
Dimensions Indoor mm
Outdoor (W*D*H)
Net Weight Indoor Kg
Outdoor
Refrigerant R-410A g
Airflow Direction Control(Up & Down)
Remocon Type
Service Valve Luquid inch(mm)
Gas
Sleeping Operation
Connection Cable
7,000 9,000 12,000 18,000 23,000
2,051 2,637 3,517 5,274 6,739
31,000
9,083
8,000 10,000 13,800 19,000 26,000
2,344 2,930 4,044 5,567 7,618
34,000
9,962
1.0 1.2 1.7 2.0 2.5
1, 220-240, 50
6.5 7.0 9.5 13 14
60
35 37 40 43 47
33 34 36 40 44
30 31 32 37 40
58
1,430~3,800
1,950~3,910
7.0~19.5
9.3~20.0
5.3 8.4 14.4 22 29
68
824 x 155 x 260 824 x 155 x 260 900 x 156 x 285 1090 x 172 x 314 1090 x 172 x 314
870 x 320 x 800
7781212
75
2,000(at 7.5m)
OOOOO
L.C.D Wireless
1/4"(6.35)
3/8"(9.52) 3/8"(9.52) 1/2"(12.7) 1/2"(12.7) 1/2"(12.7)
O
4 x 0.75(Includes earth)
Indoor
Outdoor

- 8 -
HPI-C2077(A2UN186FA0), HPI-C3077(A3UN216FA0)
HPCI-C35E
(AMNN126TEA0) HPCI-C50E (AMNN186TEA0) HPFI-C50E (AMNN186VBA0)
Model
Item
Cooling Capacitor (Indoor) Btu/h
W
Max. Cooling Capacitor (Outdoor) Btu/h
W
Heating Capacitor (Indoor) Btu/h
W
Max. Heating Capacitor (Outdoor) Btu/h
W
Moisture Removal l/h
Power Supply Ø, V, Hz
Air Circulation Indoor, Max CMM
Outdoor, Max
Indoor, High
Noise Level (1m) Indoor, Med dB(A)±1
Indoor, Low
Outdoor, Max
Input Cooling W
Heating
Running Current Cooling A
Heating
Motor Output Indoor W
Outdoor
Dimensions Indoor mm
Outdoor (W*D*H)
Net Weight Indoor Kg
Outdoor
Refrigerant R-410A g
Airflow Direction Control(Up & Down)
Remocon Type
Service Valve Luquid inch(mm)
Gas
Sleeping Operation
Connection Cable
12,000 18,000 18,000
3,517 5,275 5,275
23,400
6,856
13,800 19,000 19,000
4,044 5,567 5,567
25,200
7,384
1.5 3.3 2.5
1, 220-240, 50
9.25 13.5 14
56
41 47 49
39 45 47
37 43 45
54
880~2,660
1,210~2,360
4.6~12.1
6.1~11.1
18.3 25 -
64
570 x 570 x 269 570 x 570 x 269 1,200 x 205 x 615
870 x 320 x 655
19 19 30
64
1,600
OOO
L.C.D Wireless
1/4"(6.35)
1/2"(12.7) 1/2"(12.7) 1/2"(12.7)
O
4 x 0.75(Includes earth)
Indoor
Outdoor

- 9 -
HPCI-C35E
(AMNN126TEA0) HPCI-C50E (AMNN186TEA0) HPFI-C50E (AMNN186VBA0)
HPI-C4108(A4UN306FA0)
Model
Item
Cooling Capacitor (Indoor) Btu/h
W
Max. Cooling Capacitor (Outdoor) Btu/h
W
Heating Capacitor (Indoor) Btu/h
W
Max. Heating Capacitor (Outdoor) Btu/h
W
Moisture Removal l/h
Power Supply Ø, V, Hz
Air Circulation Indoor, Max CMM
Outdoor, Max
Indoor, High
Noise Level (1m) Indoor, Med dB(A)±1
Indoor, Low
Outdoor, Max
Input Cooling W
Heating
Running Current Cooling A
Heating
Motor Output Indoor W
Outdoor
Dimensions Indoor mm
Outdoor (W*D*H)
Net Weight Indoor Kg
Outdoor
Refrigerant R-410A g
Airflow Direction Control(Up & Down)
Remocon Type
Service Valve Luquid inch(mm)
Gas
Sleeping Operation
Connection Cable
12,000 18,000 18,000
3,517 5,275 5,275
23,400
6,856
13,800 19,000 19,000
4,044 5,567 5,567
25,200
7,384
1.5 3.3 2.5
1, 220-240, 50
9.25 13.5 14
60
41 47 49
39 45 47
37 43 45
58
1,430~3,800
1,950~3,910
7.0~19.5
9.3~20.0
18.3 25 -
64
570 x 570 x 269 570 x 570 x 269 1,200 x 205 x 615
870 x 320 x 655
19 19 30
64
2,000(at 7.5m)
OOO
L.C.D Wireless
1/4"(6.35)
1/2"(12.7) 1/2"(12.7) 1/2"(12.7)
O
4 x 0.75(Includes earth)
Indoor
Outdoor

- 10 -
HPI-C2077(A2UN186FA0), HPI-C3077(A3UN216FA0)
HPDI-C25E
(AMNN096BTG0) HPDI-C35E (AMNN126BTG0) HPDI-C50E (AMNN186BHA0)
Model
Item
Cooling Capacitor (Indoor) Btu/h
W
Max. Cooling Capacitor (Outdoor)
Btu/h
W
Heating Capacitor (Indoor) Btu/h
W
Max. Heating Capacitor (Outdoor) Btu/h
W
Moisture Removal l/h
Power Supply Ø, V, Hz
Air Circulation Indoor, Max CMM
Outdoor, Max
Indoor, High
Noise Level (1m) Indoor, Med dB(A)±1
Indoor, Low
Outdoor, Max
Input Cooling W
Heating
Running Current Cooling A
Heating
Motor Output Indoor W
Outdoor
Dimensions Indoor mm
Outdoor (W*D*H)
Net Weight Indoor Kg
Outdoor
Refrigerant R-410A g
Airflow Direction Control(Up & Down)
Remocon Type
Service Valve Luquid inch(mm)
Gas
Sleeping Operation
Connection Cable
9,000 12,000 18,000
2,637 3,517 5,274
23,400
6,856
10,000 13,000 19,000
2,930 3,809 5,567
25,200
7,384
1.0 1.2 1.6
1, 220-240, 50
8.0 10.0 16.0
56
36 39 45
34 35 42
30 31 39
54
880~2,660
1,210~2,360
4.6~12.1
6.1~11.1
35 35 118
68
650 x 535 x 230 650 x 535 x 230 880 x 450 x 260
870 x 320 x 655
22 22 34
64
1600(at 7.5m)
---
L.C.D Wired
1/4"(6.35)
3/8"(9.52) 1/2"(12.7) 1/2"(12.7)
O
4 x 0.75(Includes earth)
Indoor
Outdoor

- 11 -
HPDI-C25E
(AMNN096BTG0) HPDI-C35E (AMNN126BTG0) HPDI-C50E (AMNN186BHA0)
HPI-C4108(A4UN306FA0)
Model
Item
Cooling Capacitor (Indoor) Btu/h
W
Max. Cooling Capacitor (Outdoor) Btu/h
W
Heating Capacitor (Indoor) Btu/h
W
Max. Heating Capacitor (Outdoor) Btu/h
W
Moisture Removal l/h
Power Supply Ø, V, Hz
Air Circulation Indoor, Max CMM
Outdoor, Max
Indoor, High
Noise Level (1m) Indoor, Med dB(A)±1
Indoor, Low
Outdoor, Max
Input Cooling W
Heating
Running Current Cooling A
Heating
Motor Output Indoor W
Outdoor
Dimensions Indoor mm
Outdoor (W*D*H)
Net Weight Indoor Kg
Outdoor
Refrigerant R-410A g
Airflow Direction Control(Up & Down)
Remocon Type
Service Valve Luquid inch(mm)
Gas
Sleeping Operation
Connection Cable
9,000 12,000 18,000
2,637 3,517 5,274
31,000
9,083
10,000 13,800 19,000
2,930 4,044 5,567
34,000
9,962
1.0 1.2 1.6
1, 220-240, 50
8.0 10.0 16.0
60
36 39 45
34 35 42
30 31 39
58
1,430~3,800
1,950~3,910
7.0~19.5
9.3~20.0
35 35 118
68
650 x 535 x 230 650 x 535 x 230 880 x 450 x 260
870 x 320 x 800
22 22 34
75
2,000(at 7.5m)
OOO
L.C.D Wired
1/4"(6.35)
3/8"(9.52) 1/2"(12.7) 1/2"(12.7)
O
4 x 0.75(Includes earth)
Indoor
Outdoor

1. Indoor Unit
•Room Type Indoor Unit
- 12 -
Dimensions
Installation plate
D
H
W
W mm 824 900 1,090
H mm 260 285 314
D mm 155 156 172
HPWI-C20E(AMNN076MQA0)
HPWI-C25E(AMNN096MQA0) HPWI-C35E(AMNN126MRA0) HPWI-C50E(AMNN186MTA0) HPWI-C70E(AMNN246MTA0)
MODEL
DIM

- 13 -
•Convertible Type Indoor Unit
250mm
36mm
36mm 1076mm
1200mm
205mm
615mm
392mm
265mm
468mm
R
63mm
38mm
175mm
(Installation Plate)
(Rear Side)

- 14 -
•Cassette Type Indoor Unit
269
67055
570
269
190.5
160
52
90 90
120.4 30 521
670
570
450
40
110 110
670
670
CLOSE OPEN OPEN CLOSE

•Duct Type Indoor Unit
-9k/12k
-18k
- 15 -
(Unit:mm)
9/12K 708 678 434 51 537 455 230 172
Dimension
Capacity
ABCDEFGH
Drainage hole
A
AE
G
B
CD
1-3 mm
F
H
G
E
W
H
D
Dimension
Capacity
880 260 450
W(mm) H(mm) D(mm)
18k

- 16 -
W
D
L1
L2
L4 L3
H
L7L5L6
L10
L9
L9
L8
L10
W mm 870 870
H mm 655 800
D mm 320 320
L1 mm 370 370
L2 mm 25 25
L3 mm 630 775
L4 mm 25 25
L5 mm 546 546
L6 mm 160 160
L7 mm 160 160
L8 mm 53 53
L9 mm 50 50
L10 mm 40 40
HPI-C2077(A2UN186FA0)
HPI-C3077(A3UN216FA0) HPI-C4108(A4UN306FA0)
MODEL
DIM
2. Outdoor Unit

INDOOR WIRING DIAGRAM
INDOOR
MOTOR DRAIN
PUMP STEP MOTOR
ROOM
SENSOR
PIPE
SENSOR
FLOAT S/W
CN -DISP
DISPLAY PCB
TERMINAL
BLOCK
TO OUTDOOR UNIT
3854A20221A
BR
YL
BK
OR
BL
BL
BR
RD
GN/YL
BL
3(L) 4(N) 5 6 7
FUSE T3.15A
FUSE
250V 5A
CAPACITOR
BR YL CN-FAN
CN-POWER
RY-L
RY-M
RY-H
CN-TRANS
CN-UP/DOWN 1,2
TRANS-
FORMER
THERMISTOR
CN-TH
MAIN PCB
ASSY
OR
RD
RDBLBR
BL
BK
DOOR S/W 1,2
FUSE T3.15A
MOTOR
GN/YL
GN/YL
TO OUTDOOR UNIT
1(L)2(N) 4
3854A20220A
INDOOR WIRING DIAGRAM
CN-DISP
DISPLAY PCB
ASSY
TERMINAL
BLOCK
STEP
MOTOR
STEP
MOTOR
56
3854A20135F
- 17 -
Wiring Diagram
1. Room Type Indoor Unit
2. Cassette Type Indoor Unit
3. Convertible Type Indoor Unit

BR
Comp.
U UN
P
IPM
W
W
4WAY
V
V
RD
RD
YL
RD
RD
RD
RD
RD
BR
CT
BR
BR
BL
BL
WH
BK
BK
BK
BK BK
BK
BK
YL
H/P SWITCH
L/P SWITCH
OPTION
BRIDGE
DIODE
BRIDGE
DIODE
CAPACITOR
(400V,165µF)
400V,2500µF(DC LINK)
CAPACITOR
S.V
POWER
RELAY
BR
33331(L) 2(N) 1(L) 2(N) 1(L) 2(N)
BR BR
BR
BR
BL
10 24
GN/YL
GN/YL
BL BL
BL
BL
BL
GN/YL GN/YL
WH
WH
WH
BL WH
WH
WH
(WH)
(RD)
(WH)
(RD)
GND
YL
YL
BR
BK
BK
NL
BK
WH
RD
BL
WH
BK
BL
CN-
GATE1 CN- GATE2 CN- IPM
CN-
IPM
CN-
GATE1
D-LEV
CN-DATA
CN-POWER CN-PWR
RY-START
250V, 3.15A
FUSE
RY- PWR
CN-AC
REACTOR
POWER-OUT
FUSE
250V,25A
POWER-IN
A-LEV
B-LEV
C-LEV
(8PIN)
CN-LEV4CN-LEV1CN-LEV2CN-LEV3CN-TH6CN-TH5
CN-TH4
CN-TH3
CN-TH2
CN-TH1
COND
SENSOR
AIR
SENSOR
A-PIPE
SENSOR
B-PIPE
SENSOR
C-PIPE
SENSOR
D-PIPE
SENSOR
SUCTION
SENSOR
DISCHARGE
SENSOR
(7PIN) (9PIN)
CN-
GATE2
MAIN
PCB
CN-FAN
RY-LOW RY-HIGH
CN-DC
CN-4WAY
CN-SV(H)CN-SV
WH
WH
WH
OPTION
TO INDOOR UNIT
MAIN POWER
1Ø, 220~240V, 50Hz
3854AP7050Z
DCBA
NOISE
FILTER
S.V
MOTOR
CAPACITOR
BL
BR YL
YL BR BL BK OR
BK OR
- 18 -
5. Outdoor Unit
CN-REMO
CN-FLOAT
CN-PIPE
CN-ROOM
CN-
D/PUMP
CN-MOTOR2
CN-
POWER
3854A20128T
1(L)
MICOM
2(N)
3 4 5
TEMP.
THERMISTOR PIPE.
THERMISTOR REMOTE
CONTROL
CN-DISP
RF REMOTE
CONTROL
FLOAT S/W
GN/YL
RD
BL
BR
FUSE
250V 3.15A
FUSE
250V 3.15A
INDOOR
MOTOR
OPTION
DRAIN
PUMP
CAPACITOR
3854A20128U
CN-REMO
CN-FLOAT
CN-PIPE1
CN-ROOM
TEMP.
THERMISTOR PIPE.
THERMISTOR REMOTE
CONTROL
CN-DISP
RF REMOTE
CONTROL
FLOAT S/W
CN-
POWER
FUSE
250V 3.15A
GN/YL
RD
BL
BR
1(L)
2(N)
345
4. Duct Type Indoor Unit
-9k/12k
-18k

- 19 -
Refrigeration Cycle Diagram
ex)
LEV
Solenoid valve
Capillary tube
Cooling & Deice
Heating
Indoor Unit Outdoor Unit
UNIT-D UNIT-C UNIT-B UNIT-A
A-LEV
B-LEV
C-LEV
D-LEV
Gas side
Service Valve
Indoor
temperature
sensor
Heat
Exchanger
Heating
sensor
Solenoid
Valve
D-gas pipe sensor
C-gas pipe sensor
B-gas pipe sensor
A-gas pipe sensor
A-liquid pipe sensor
B-liquid pipe sensor C-liquid pipe sensor D-liquid pipe sensor
Liquid side
Service Valve
Strainer
Indoor Unit Outdoor Unit
UNIT-B UNIT-A
A-LEV
B-LEV
Gas side
Service Valve
Indoor
temperature
sensor
Comp Heat
Exchanger
Heating
sensor
4-WAY VALVE
Discharge
pipe
sensor
Refrigerant flow
B-gas pipe sensor
A-gas pipe sensor
A-liquid pipe sensor
B-liquid pipe sensor
Liquid side
Service Valve
Strainer
Indoor Unit Outdoor Unit
UNIT-C UNIT-B UNIT-A
A-LEV
B-LEV
C-LEV
Gas side
Service Valve
Indoor
temperature
sensor
Comp Heat
Exchanger
Heating
sensor
4-WAY VALVE
Discharge
pipe
sensor
C-gas pipe sensor
Refrigerant flow
B-gas pipe sensor
A-gas pipe sensor
A-liquid pipe sensor
B-liquid pipe sensor C-liquid pipe sensor
Liquid side
Service Valve
Strainer
Comp
Section pipe
sensor
Discharge
pipe
sensor
1. HPI-C2077(A2UN186FA0)
2. HPI-C3077(A3UN216FA0)
3. HPI-C4108(A4UN306FA0)

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Operation Details
1. Room Type Indoor Unit
(1) The Function of main control
•DISPLAY
Operation Indicator
•On while in appliance operation, off while in appliance pause
•Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on)
Sleep Timer Indicator
•On while in sleep timer mode, off when sleep timer cancel or appliance operation pause
Timer Indicator
•On while in timer mode (on/off), off when timer mode is completed or canceled
Defrost Indicator
•Off except when hot start during heating mode operation or while in defrost control
■Cooling Mode Operation
•When the intake air temperature reaches 0.5°C below the setting temp, the compressor and the outdoor fan
stop.
•When it reaches 0.5°C above the setting temp, they start to operate again.
Compressor ON Temp ➲ Setting Temp+0.5°C
Compressor OFF Temp ➲Setting Temp-0.5°C
•While in compressor running, operating with the airflow speed set by the remote control. While in compressor
not running, operating with the low airflow speed regardless of the setting.
■Soft Dry Operation Mode
•When the dehumidification operation input by the remote control is received, the intake air temperature is
detected and the setting temp is automatically set according to the intake air temperature.
26°C ≤Intake Air Temp ➲ 25°C
24°C ≤Intake Intake Air Temp<26°C➲ Intake Air Temp-1°C
18°C ≤Intake Intake Air Temp<24°C➲ Intake Air Temp-0.5°C
Intake Air Temp<18°C➲ 18°C
•While in compressor off, the indoor fan repeats low airflow speed and pause.
•While the intake air temp is between compressor on temp. and compressor off temp., 10-min dehumidification
operation and 4-min compressor off repeat.
Compressor ON Temp. ➲Setting Temp+0.5°C
Compressor OFF Temp. ➲Setting Temp-0.5°C
•In 10-min dehumidification operation, the indoor fan operates with the low airflow speed.
■Heating Mode Operation
•When the intake air temp reaches +3°…above the setting temp, the compressor is turned off. When below
the setting temp, the compressor is turned on.
Compressor ON Temp. ➲Setting Temp.
Compressor OFF Temp. ➲Setting Temp.+3°C
•While in compressor on, the indoor fan is off when the indoor pipe temp. is below 26°C, when above 28°C , it
operates with the low or setting airflow speed.