Samsung AR12
Samsung AR12
1.Precautions
2. Product ations
5. Assy Control
AR12NVFPDWKNAZ
6. Electrical Parts List
7. Wiring Diagram
8. Schematic Diagram
9. Operating Instructions
10. Troubleshooting
AR12NVFPDWKXAZ 11. Block Diagram
Samsung Electronics 1
Contents
8. Schematic Diagram························································································ 8-1
8-1 Indoor Unit·························································································································································· 8-1
8-2 Outdoor PCB ····················································································································································· 8-2
8-3 Refrigerating cycle diagram ······················································································································· 8-3
8-4 Indoor PCB ·························································································································································· 8-4
8-4 Outdoor PCB ······················································································································································ 8-5
8-6 Wire connecting the indoor unit terminal blocks········································································· ·· ··· 8-6
2 Samsung Electronics
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1-4 Disposing of the unit
Before the throwing out the air conditioner, remove the batteries from the remote control.
When you dispose of the air conditioner, consult your dealer. If pipes are removed incorrectly, refrigerant may blow out
and cause air pollution. When it contacts with your skin, it can cause skin injury.
The package of the air conditioner should be recycled or disposed of properly for environmental reasons.
1-5 Others
Never store or load the air conditioner upside down or sideways to prevent the damage to the compressor.
Young children or infirm persons should be always supervised when they use the air conditioner.
Max current is measured according to IEC standard for safety.
Current is measured according to ISO standard for energy efficiency.
Your new air conditioner not only provides maximum cooling power in the summer, but also can be an
running cost. Now, meet year-round needs with one air conditioner.
function
function allows you to set a comfortable sleep temperature while saving energy and
having sound sleep.
Model Development Model
AR12NVFPDWK/AZ
Item
Type WALL MOUNTED
Cooling Btu/h ( Low/ Std/ Max) 11500
Heating Btu/h ( Low/ Std/ Max) -
Noise Indoor/Outdoor dB(H/L) 39 / 50
Performance
Cooling W/W 3.24
EER
Heating(ISO) W/W -
Power V/Hz 220V~/ 60Hz
Cooling(ISO) W ( Std) 1040
PowerConsumption
Heating(ISO) W ( Std) -
Power
Cooling(ISO) A (Std) 5.1
Operating Current
Heating(ISO) A (Std) -
Indoor 820*285*215
Outer Dimension W*H*D(mm)
Outdoor 720*548*265
Indoor 8.0
Weight(net) Kg
Size Outdoor 27.0
Liquid 6.35
Refrigerant Pipe mm
Gas 9.52
Drain Hose D*L(mm) -
Φ7, 2R*10S*605mm, H1.3, Hydrophilic,
EVAP
2by2
Indoor
Φ7, 2R*4S*575mm, H1.3, Hydrophilic : (4S-
Heat Exchanger EVAP Sub
1-6)
Φ7, 2R*24S*706mm, H1.3, Hydrophilic,
Outdoor COND
3by3by1
Refrigerant R-410A g 1000g
Refrigerant Control Unit Capillary Tube
Compressor UG9AJ1090FERSS
Protection device(OLP) Internal
Air purifying system 3-CARE Filter
Cooling Operating Condition 16 ~ 46℃
Heating Operating Condition -
AR12NVFPDWK/AZ
Item
Indoor
Design
Outdoor
Indoor(mm) 820*285*215
Outer Dimension
(Width x Height x Depth )
Outdoor(mm) 720*548*265
Indoor(dB) 39
Noise
Outdoor(dB) 50
DB93-15882Q
4301-000121
2-4
Item Descriptions Code-No. Q’TY Remark
2-5
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FROM E200 Outdoor error display
EEV or Valve Close error-Self diagnosis
* Note *
If the Set doesn’t work (No power), check the Thermal fuse
of Terminal block OPEN or SHORT with Multimeter.
* Measure the Thermal fuse housing PIN#1 2 :
OPEN(disconnection) -> defective product
DESCRIPTION
LED PATTERN 7SEG
YEL GRN RED DISPLAY
Power off
Reset
Normal Operation
Abnormal Communication
Note :
SEG1, SEG7, SEG13, SEG19 need not to be pressed in, so in fact the Option No. we should press in is as below.
SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24
SEG25 SEG26 SEG27 SEG28 SEG29 SEG30 SEG31 SEG32 SEG33 SEG34 SEG35 SEG36 SEG37 SEG38 SEG39 SEG40 SEG41 SEG42 SEG43 SEG44 SEG45 SEG46 SEG47 SEG48
Step 1
2. Press the temperature button simultaneously and insert the battery again.
Step 2
Enter the Options Setup mode and select your options asscording to the following procedure.
Press the Mode Selection key to set the display part and check the display part.
→ The display part shows like below when each time you press Mode button.
When pressing the operation ON/OFF key with the direction of remote control for the sound ’ Ding’’ or ’ Diriring’’ is heard
and the OPERATION ICON( ) lamp of the display me time, then the input of option is completed.
(If the deriving sound isn’t heard, try again pressing the ON/OFF button.)
Enter the Options Setup mode and select your options asscording to the following procedure.
Every time you push the button, the display panel reads
... repeatedly.
Every time you push the button, the display panel reads
... repeatedly.
Press the Mode Selection key to set the display part and check the display part.
→ The display part shows like below when each time you press Mode button.
When pressing the operation ON/OFF key with the direction of remote control for unit, the sound ’ Ding’’ or ’ Diriring’’ is hea
and the OPERATION ICON( ) lamp of the display me time, then the input of option is completed.
(If the deriving sound isn’t heard, try again pressing the ON/OFF button.)
■Error mode
1. If all lam y to retry.
2. If the unit is not working properly or all lamps are continuously orrect option code is set up for its model.
□Option Items
Caution:
The terminal is locking type.
So, when you separate terminals,
pull pressing the button.
Button
Caution:
When you separate the connector,
pull pressing the locking button.
Caution:
When you separate the connector,
pull pressing the locking button.
Caution:
When you separate the connector,
pull pressing the locking button.
Caution:
When you separate the connector,
pull pressing the locking button.
Caution:
When you separate the connector,
pull pressing the locking button.
1 Maldives
1) Power off
Normal
EER (only)
4-13
3) Connect PC-Download Download Connector (10pin)
Jig-PBA
5) CLICK
7) CLICK
8) CLICK
4-14
5. Assy Control
5-1. ASSY KIT_DB92-04602A
3
1
5-1
5-2. ASSY CONTROL OUT_DB93-16937A
TERMINAL BLOCK
8
11
CABLE TIE
9
12
10
13
5-2
6. Electrical Parts List
6-1 INDOOR MAIN PCB DB92-04372C
Level Parts Code Design Loc Quantity Parts Description Spec. Unit
..1 0201-002081 ADHESIVE-SIL 1.5 ADHESIVE-SIL 737,WHITE,-,- G
..1 0201-002354 - 0.001 ADHESIVE-COM 1-2577,Translucent,950 KG
LFC2-W3.0,D3,99.79Sn/0.2Cu/0.01P,No
..1 0202-001463 SOLDER-WIRE 4.5 SOLDER-WIRE G
Flux
LFC7-107,D0.8,99.3Sn/0.7Cu/0.01P,Flux
..1 0202-001608 SOLDER-WIRE FLUX 0.4 SOLDER-WIRE FLUX G
3.5%
..1 0204-004665 FLUX 2.5 FLUX KSP-70M-S,MIXTURE,NO,FLUX,13% G
..1 0402-001227 BD71 1 DIODE-BRIDGE D3SBA60,600V,2.3A,SIP-4,BK PC
..1 1203-000274 IC02 1 IC-POSI.FIXED REG. 7805,TO-220,3P,-,PLASTIC,4.8/5 PC
TOP253PN,DIP,7P,6.35x9.57mm,PLASTIC,-
..1 1203-006089 IC01 1 IC-PWM CONTROLLER PC
0.3V/700V,15W,-40Cto+150C,1.37A,ST
..1 1404-001194 PTC71 1 THERMISTOR-PTC 39ohm,20%,220/240V,270Vac,1.2A,TP PC
18ohm,3A,3200K,19MWC,610uF,15mm,TP,17x
..1 1404-001413 NTC1 1 THERMISTOR-NTC PC
6mm
680V,560VDC,4500A,17.5x8mm,TP,1120V,50
..1 1405-000160 VA71 1 VARISTOR PC
0pF,D14
..1 2003-000706 R105 1 R-METAL OXIDE(S) 47Kohm,5%,2W,AA,TP,3.8x12mm PC
..1 2201-000983 C103 1 C-CERAMIC,DISC 1nF,10%,2000V,Y5P,TP,9x5mm,7.5mm PC
..1 2201-002690 C107 1 C-CERAMIC,DISC 2.2nF,20%,400Vac,Y5U,TP,12.5x7mm,10mm PC
..1 2201-002690 C108 1 C-CERAMIC,DISC 2.2nF,20%,400Vac,Y5U,TP,12.5x7mm,10mm PC
..1 2301-002032 XC72 1 C-FILM,LEAD-PPF 100nF,10%,275Vac,TP,12.5x6x12mm PC
..1 2401-004393 C101 1 C-AL 100uF,20%,500V,BK,25.4x30mm,10mm PC
..1 3002-001129 BZ61 1 BUZZER-PIEZO 85dB,2KHz,BK PC
..1 3501-001268 RY71 1 RELAY-POWER 12V,0.9W,25000mA,1FormA,20ms,10ms PC
..1 3502-001087 SS72-1 1 SSR 12V,2A,0.2ms,9.6~25,264V PC
250V,2.5A,TIME-LAG,CERAMIC-
..1 3601-001288 F701 1 FUSE-AXIAL LEAD PC
TUBE 5 2x20mm
..1 3711-000260 CN71 1 HEADER-BOARD TO CABLE 1WALL,3P,1R,7.92mm,STRAIGHT,SN,BLU PC
..1 3711-000296 CN72 1 HEADER-BOARD TO CABLE 1WALL,6P,1R,3.96MM,STRAIGHT,SN,WHT PC
..1 3711-000796 CN42 1 HEADER-BOARD TO CABLE BOX,2P,1R,2.5MM,STRAIGHT,SN,RED PC
..1 3711-000941 CN81 1 HEADER-BOARD TO CABLE BOX,4P,1R,2.5mm,STRAIGHT,SN,YEL PC
..1 3711-004379 CN43 1 HEADER-BOARD TO CABLE BOX,4P,1R,2mm,STRAIGHT,SN,WHT PC
..1 3711-004484 CN61 1 HEADER-BOARD TO CABLE BOX,5P,1R,2mm,STRAIGHT,SN,WHT PC
BOX,9P,1R,2mm,STRAIGHT,SN,WHT,5.1x19.9
..1 3711-004712 CN91 1 HEADER-BOARD TO CABLE PC
8x11.2mm
..1 3711-005097 CN62 1 HEADER-BOARD TO CABLE BOX,5P,1R,2MM,STRAIGHT,SN,BLU PC
..1 3711-007067 CN31 1 HEADER-BOARD TO CABLE BOX,6P,1R,2mm,STRAIGHT,SN,BLK PC
..1 DB26-00116A ST11 1 TRANS SWITCHING 230V PC
USAV-07153,UU1116,15mH,+50~-30%,-
..1 DB27-00017A FT71 1 COIL CHOKE ,1.3ohm,0.7A,15mH,105,20*18mm,13x10,0. PC
6,BK,-25℃~+85℃,-,Mn-Zn,4,DIP
..1 DB68-05458A LABEL BAR CODE 1 LABEL BAR CODE AM9000H,ART,W17.5,L18 PC
SUB,MALDIVES-P/J,21*15,5V,5V,-
..1 DB93-11027A CN73 1 ASSY PCB SUB-HVPS PC
,SUB BORACAY[-],Non-Standard
....2 DB93-12128A 1 ASSY PCB MANUAL MALDIVE-PJT,SSEC PC
......3 3711-005658 CN72 1 CONNECTOR-HEADER NOWALL,4P,1R,2mm,ANGLE,SN,WHT PC
......3 DB93-12129A 1 ASSY PCB SMD MALDIVE-PJT,SSEC PC
........4 0501-000465 Q702 1 TR-SMALL SIGNAL MMBT3904,NPN,350mW,SOT-23,TP,30~300 PC
393,SOP,8P,150MIL,DUAL,36V,CMOS,PLASTI
........4 1202-000104 IC11 1 IC-VOLTAGE COMP. PC
C,18V,780mW,0to+70C,18V,5mV,250nA,50NA
........4 2007-000052 R710 1 R-CHIP 10Kohm,1%,1/10W,TP,1608 PC
........4 2007-000130 R715 1 R-CHIP 39Kohm,5%,1/10W,TP,1608 PC
........4 2007-000455 R712 1 R-CHIP 18Kohm,1%,1/10W,TP,1608 PC
........4 2007-000475 R709 1 R-CHIP 1Mohm,1%,1/10W,TP,1608 PC
........4 2007-000583 R714 1 R-CHIP 22Kohm,1%,1/10W,TP,1608 PC
........4 2007-000939 R711 1 R-CHIP 47Kohm,1%,1/10W,TP,1608 PC
........4 2007-000979 R713 1 R-CHIP 5.6Kohm,1%,1/10W,TP,1608 PC
........4 2203-000440 C709 1 C-CER,CHIP 1nF,10%,50V,X7R,TP,1608 PC
........4 2203-001083 C711 1 C-CER,CHIP 0.005nF,0.1pF,50V,C0G,TP,1608 PC
........4 2203-005249 C710 1 C-CER,CHIP 100nF,10%,50V,X7R,TP,1608 PC
........4 2203-005249 C712 1 C-CER,CHIP 100nF,10%,50V,X7R,TP,1608 PC
........4 DB41-01021A PCB 1 PCB SUB-HVPS FR-1,T1.6,25 PC
2,1007,26,WHT,25045HP-02B/WHT,YBNH200-
02P/WHT,-,150,2.5pi /UL125/BLK,30,-,-
..1 DB93-12824A CN11 1 ASSY CONNECTOR WIRE PC
,PBA-TERMINAL BLOCK,BORACAY,N,-
,BORACAY,AWG 2
(OPTION)
UP/DOWN YEL
STEP BLK
1 1
MOTOR
CN81 2 2
SPI
(OPTION1) (YEL) 3 3
RED 4 4
UP/DOWN (OPTION)
(OPTION)
STEP
MOTOR1 ORG
1 1
RECEIVER
RED
(WHT)
2 2
CN02
(WHT)
CN01
3 3
1 1 1 RED
4 4
UP/DOWN 2 2 2 1 1
CN61 2 2 ORG
STEP 3 3 3
(WHT)
CN05
(WHT) 1 1 RECEIVER
MOTOR2 4 4 4 3 3 2 2
(WHT)
CN01
4
DISPLAY
5 5 5 4 3 3
CN91 4 4
(OPTION2) 6 WHT 5 5
(WHT) 6 6 (OPTION)
RED
7 7 1 1 SPI
GRILLE
(WHT)
CN03
STEP 8 8 2 2 LIGHTING
MOTOR2 9 9
(OPTION)
11 1
10
2
RED
(BLK)
CN04
1 1 3
4
TEST CONNECTOR
GRILLE 2 2 (OPTION) 5
STEP 3 3 CN63
RED
MOTOR1 4 4 (BLK) 1 1 1 1 1
5 5 2 2 2 2 2
(OPTION) (OPTION) 3 3 3 3 3
DISPLAY
RED RED CN91 4 4 4 4 4
1 1
(WHT) 5 5 5 5 5
LEFT/RIGHT 2 2 CN62 6 6 6 6 6
STEP 3 3
(BLU) 7 7 7 7 7
MOTOR 4 4 8 8 8 8 8
5 5 9 9 9 9 9
3
2
1
(OPTION)
(OPTION)
(OPTION) WHT
3
2
1
RED
1 1
DISPLAY
1
2 2 CN64
SPI
STEP 2
MOTOR 3 3 (RED) CN31 3
4 4 4
(BLK) 5
5 5
6
(OPTION) (OPTION) DOWNLOAD
BLK (OPTION)
1 RED 1 1
10K
2 2 2
3 3 CN72
BLDC 4 4 (WHT) BLK (OPTION)
5 5 1
6 6 2
10K ROOM-TH
OPTION WHT 3 BLK
10K
4
BLU
1
YEL
1 (OPTION)
2 2 CN44 BLK
1
3 3 (BLU) 10K
2
F701
(OPTION)
250V T2.5A 1
BLK
WHT RED
1 1 10K ROOM-TH
2 2 2
3 3 CN72 3
4 4 (WHT) 4
5 5 5
(OPTION) (OPTION)
WHT
OPTION
CN11 1
(WHT) 2
4 CN71
3 CN74 (OPTION)
(BLU)
(TAB)
CN79
(TAB)
CN78
(WHT)
1 2 1 2 3 4 5
BRN
WHT
BLK
SKY
(OPTION)
POWER(L) POWER(N)
(OPTION)
OPTION1 BRN BLU/SKY
BRN
COM
ON
GRN GRN/YEL
OPTION2 RED BLK
OPTION3 BLK WHT OPTION WHT
2
1
THERMAL FUSE
(OPTION)
POWER(L)
POWER(N)
* Note *
If the Set doesn’t work (No power), check the Thermal fuse
of Terminal block OPEN or SHORT with Multimeter.
* Measure the Thermal fuse housing PIN#1 2 :
OPEN(disconnection) -> defective product
CODE NO: DB68-07686A-00 DB68-07686A-00
7-2 Outdoor Unit
DESCRIPTION
LED PATTERN 7SEG
YEL GRN RED DISPLAY
Power off
Reset
Normal Operation
Abnormal Communication
LED ON
LED OFF
LED BLINKING
DB68-07690A DB68-07690A-00
7-2
DEBUG
100n
16V
C521
1% 1/16W
LED MICOM
R531
R543 R544 R545
IC801 This is the test point 10K 10K 10K IC502
R803
10K
distance is 2.0mm. 1% 1% 1%
6.2K F 1/10W
YEL 16 1
1/16W 1/16W 1/16W R530
2 1
PFCM DRIVE Ref. OPTION TABLE
PFCM OC
RY_FAN FAN VCC
O1 I1 CSTCE8M00G55-R0 OUT D061 R061
3.2x1.6x1.1mm R533 R534 Ref. OPTION TABLE
F 1/10W
15 2 GND R071
RY_4WAY 4WAY 4.7K 4.7K 2
R065
O2 I2 100 F 1/16W IC061
R540 100 F 1/16W ENC_A-G
ENC_A-G
F F R066 PFCM_MICOM PFCM_OC
R802 LED803 14 3 ENC_B-Y 1/16W 1/16W KIA7042AT 3
6.2K F 1/10W O3 I3 C520 100 F 1/10W 1 8 ES1D 5.1 F 1/4W
20K
GRN R541 100 F 1/16W ENC_B-Y
ENC_B-Y C518 C519 100n PFCM_PWM IN DESAT 1.5K F 1/10W
13 4 ENC_A-G R062
O4 I4 1000n 100n 16V 2 7
3.2x1.6x1.1mm R542 100 F 1/16W ENC_Z-R
ENC_Z-R
R535 100 F 1/16W 25V 16V PFCM_FO FO/SD OUT PFCM_IN
12 5 ENC_Z-R TXD_INV
O5 I5 1 3 3 6 C071
DA_DATA-EEP_TX 15 F 1/4W 10n
DA_DATA-EEP_TX VCC GS
F 1/10W
ZD061
3.2x1.6x1.1mm 1M F 1/16W
PTZ18A
C522 50V C061
LED801
1n 1nF
2003 1W R546 100 F 1/16W EEP_RX-MISO0
EEP_RX-MISO0 50V 50V
R529 R528 C064
F 1/4W
1K 1K Ref. OPTION TABLE 1nF
R064
ZD062
F
PTZ18A
R538 F 50V
C801 F 1/16W 1/16W
10K
SUB
4.7K
MAIN
4WAY
F 1/16W
ENC_B-Y
ENC_Z-R
ENC_A-G
1/16W
R547
50V 100nF
6.8K
ADC_IEC
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
F 1/16W
C501 C514
R548
100n 100n
XI
XO
16V
PF6
16V
6.8K
MOD1
MOD0
VSSIO
R526 R525 R524 R523 R522
VDDIO
nRESET
4.7K 4.7K 4.7K 4.7K 4.7K
PF4/TXD2
PF5/RXD2
PF7/CLKO
BOOT_INV F F F F F
1 48
AVSS BOOT
1/16W 1/16W 1/16W 1/16W 1/16W
D501
2 47
1N4148WS
AVDD VDD18 VDD18_INV
PF0/RXD1/TRACED0
PF1/ENC_Z/TRACED1
3
PE7/TXD1/TRACECLK
46
PF3/ENC_B/TRACED3
PF2/ENC_A/TRACED2
R501 4.7K F 1/16W PA0/AN0 VSS
4 45
ADC_IEC PA1/AN1 VDDEXT
Option
5 44
R502
VIN 1K F 1/16W
6
PA2/AN2 PLLFLT
43
PLL_INV
Ref. OPTION TABLE
PFCM
R251 R253 VDC
R503 1K F 1/16W PA3/AN3 PE6/TDO TDO_INV
24K 5.1K 7 42 PR
F F
Option 1/16W 1/16W
Near to MICOM
OLP/OUT-TH R504 4.7K F 1/16W
8
PA4/AN4 PE5/TCK
41
TCK_INV
VB_U
DC_LINK
1 CNP051
2
MIC501
CNP251 R252 PFCM_MICOM R505 1K F 1/16W
9
PA5/AN5 HART-I910Z PE4/TMS
40
TMS_INV
COMP DRIVE C401
YTR250
*
1 1
IU_MICOM
R506 100 F 1/16W PA6/AN6 PE3/TDI/TPWM7 TDI_INV 25V 100nF
1 OLP
10 39 47uF 50V
330 F 1/16W IV_MICOM
R507 100 F 1/16W PA7/AN7 PE2/nTRST/TCAP7 nTRST
CE401 1 CNP052 2 2
2
11 38
REACTOR
R508 VS_U X
2
SMW250-02 C251 IW-ICOMP_MICOM 100 F 1/16W PB0/AN8 PE1/SDA0 YTR250
WHT 100n 12 37 *
16V VB_V 10.5A
PB1/AN9 PE0/SCL0
C513 Ref. OPTION TABLE
13 36
[OPTION TABLE] PB2/AN10 PD7/TPWM6 FAN 0.033n C402
25V 100nF
D051
14 35 50V PFCIPM401
US1M
PB4/MD0
PB5/MD1
PB6/MD2
PB7/MU0
PC0/MU1
PC1/MU2
PC2/PWMOFF/TCAP0
PC3/TXD0/TPWM0
PC4/RXD0/TCAP1
PC5/TPWM1
PC6/TCAP2
PC7/TPWM2/ADC_R_0
PD0/TCAP3/ADC_TR_1
PD1/TPWM3/ADC_TR_2
PD2/SS0/TCAP4
PD3/SCK0/TPWM4
1/16W 1/16W 1/16W CE403 5 22
NTC251 X O X VS(W) X
6
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
VS_W VB(W)
1n 2000V
C252 R253
R401 MO_UH
7 21
100n R254 X O O IPM_UH 100 F 1/10W HIN(U) P
16V OUT-PBA_TH 8
NTC251
R510 R402 100 F 1/10W MO_VH HIN(V)
DC_LINK
C252 IPM_VH
IPM_TH 1K F 1/16W 9
R403 100 F 1/10W MO_WH HIN(W) U
209A
IPM_WH
NCP18XH103J03RB
OLP 10 CNP401
R404 100 F 1/10W MO_UL LIN(U) MO_UO U C413
IPM_UL 3 3 3
11 1n
R405 MO_VL V
199A MO_VO Ref. OPTION TABLE
IPM_VL 100 F 1/10W LIN(V) V 2 630V
Near to MICOM 12
2 2 COMP
C508 C509 R406 100 F 1/10W MO_WL LIN(W) MO_WO W
IPM_WL 1 1 1 C412
100n 100n 13 189A
16V 16V PLL_INV R407 1.5K F 1/10W ITRIP VDD W
DBT061-3P 100n
VDD18_INV PLL_INV IPM_OC
WHT
IPM_VL
IPM_UL
630V
IPM_VH
IPM_UH
IPM_WL
IPM_WH
14
VFO
PFCM_PWM
C404 C405 C406 C407 C408 C409 C410 15 17
R512 1nF 1nF 1nF 1nF 1nF 1nF 1nF ITRIP N
COMMUNICATION
DA_CS-EEP_CS
DA_CLK-EEP_CLK
R514 50V 50V 50V 50V 50V 50V 50V C414
F 1/16W
16
1n
R527
IPM_FO VSS
PFCM_FO C516 630V
2K
100 F 1/16W 1n Ref. OPTION TABLE
100 F 1/16W C515 50V IFCM15S60GS
F 1/10W
2200n R424-T
R408
16V C517 Near to IPM
C511 C512 22n
8.2K
47u 100nF
25V 50V
IW-ICOMP
25V
ZD401
PTZ18A
EEPROM
IW-ICOMP_PGND
DOWNLOAD CNP571
1
2
1/10W
3
F
R410
4
SMW250-04 VS_U
VS_U
15K
CNP501 WHT
F 1/10W
VB_U
R412
VB_U
RXD_INV SUB
C416
F 1/10W
VS_V DC_LINK
4.7K
BOOT_INV ENC_A-G
10K 10K 10K 10K CE160 100n
F 1/10W
3 18 1% 1% 1% 1% 1 8 VS_W MO_UO
10u 50V 50V
R411
F 1/16W
F151 R162 R163 D162 +IN1 -IN2
DA_CLK-EEP_CLK R554 R415
R572
TDI_INV 6 15 100 F 1/16W 7 4 5
LI_S LI_SMPS DDC_D R413 MO_VH Ref. OPTION TABLE
D FB GND +IN2 MO_VH
DA_DATA-EEP_TX R555 LI_S 100
TMS_INV 7 14 ENC_B-Y 100 F 1/16W 6 5 4 IU_PGND
1K
250V 15K F 1/10W
1.2K F 1/10W ES1J F C417 100 F 1/16W OC_DETECT MO_WH MO_WO
NTC-18D-15 NC BP MO_WH W IU
R578 100 F 1/16W EEP_RX-MISO0 R556 1.6A 1/10W 1nF KIA393F
nTRST 8 13 100 F 1/16W 5 6 3 P_GND
D163 50V MO_UL
MO_UL
DA_CS-EEP_CS R557 CE151 S S CE164 1N4148WS
9 12 100 F 1/16W 4 C151 7 2 C161 C420
R573 100 F 1/16W 22u 0.22n 100n 10u 0.1n MO_VL
MO_VL IU
F 1/10W
R574 100 S S
F 1/16W VA151
R161
500V 1000V 50V 50V 50V IV_PGND
F 1/16W
2K
F 1/10W
D161
25V 50V
ES1J
1/10W
COMMUNICATION CURRENT
F 1/8W
F 1/8W
R312
R313
R301 R302
R314
3-SHUNT 1-SHUNT
20K
1.5K
CNP301
PFC DC DC LINK SENSOR Ref. OPTION TABLE
1 47K J 1/4W 47K J 1/4W
1K F 1/8W COMMUNICATION Ref. OPTION TABLE
2 R303 R304 3
10.5A
PC301 R311 C
YTR250 PR DC_LINK
5A
1 6 1 B Q301
*
47K J 1/4W 47K J 1/4W MMBT3904 C312
0.21mA
0.21mA
680 J 1/8W E 10n Ref. OPTION TABLE Ref. OPTION TABLE
1mA
C301 50V IW-ICOMP_MICOM PFCM_MICOM
5A
5A
5A
5A
2 5 CE301 2 Ref. OPTION TABLE
1000n C311
F 1/8W
F 1/8W
4.7u 10n
R310
R309
R056
R107
50V IW-ICOMP_MICOM
50V 50V R103 IC451
R305 R306
F 1/16W
F 1/16W
3 4 100K
1.5K
1.5K
R453
R081
J 1 14
1mA
P_GND
R452 R083
5A
*
1W
TLP180 2K F 1/16W 1.5K F 1/16W
F 1/16W
2 13
30K
30K
R469
R055
R106
R307 R308 IW/ICOMP_PGND IW-ICOMP PFC_GND
4.7K
100K
R454
R082
7 8
30K
30K
R054
R105
R470
50V
VREF
TLV9064IPWR
1W
R455
R085
R461
R468
R462 R467
R053
R104
NE_IN
4.7K
18K
D022 IV IU
14.3K F 1/4W
14.3K F 1/4W
R023
IV_PGND IV_PGND
D451 1N4148WS
RY_SUB
CNP001 Ref. OPTION TABLE C452 C081
YTR250 FT001 120 F 1/4W 1N4148WS P_GND
R463 R466 P_GND 100n 100n
2
F 1/16W
F 1/16W
1 4 50V
* NE_IN 10.5A 10.5A
1
F 1/16W
F 1/16W
3
5
4
Ref. OPTION TABLE Near to IC451, IC452
R464
R465
2 3
4.7K
2K
N
C005
INDOOR UNIT
20K
20K
VA002
INR14D561K
RY022
C001 C004
680n 680n
PCJ-112D3MH
275V 275V
VA001
PTC021
6
2
1
C006 [OPTION TABLE]
INR14D681K-SK
C003 4.7n LI_SUB 5A 5A
CNP002 4.7n 10.5A CAPLESS CAPLESS No PFC ECO ECO
400V
VA003
YTR250 LI_R Block Option Reference
400V 9K/12K 18K 9K/12K 9K/12K 18K
INR14D561K
* PPL16500NA2B7
F001
LI_IN 10.5A LI_S D111, CE111, D109
1 10.5A 10.5A LI_IN_FUSE Capless
10.5A Ref. OPTION TABLE R111, R112, R113 O O
2 250V 15A
DSA001 C111, PTC022
Comp Control
GRN/YEL EARTH
1 EARTH1 2
AC FAN, 4WAY CONVERTER Ref. OPTION TABLE 3-SHUNT OC R101, R102, R103
8
7
DA38-362M
O O O
2 CNP041 C412, D108, PTC021
CR041
6
5
CNP003 RY021
Normal
1 R421 IU_MICOM CE101, CE102, CE103 2401-005163 2401-005163 2401-004874
GP881205 FTR-K1AK012T
4
3
LI_R
* 1500n 450V RY041 D041
2 2 10A FT001 O O O O
1N4148WS
2
1
FAN 400mA
1 4 BD051 Filter
R021 3 4.7K F 1/4W 15A FT002 O
RY_FAN
MOTOR 4 1 10.5A
LI_S
4 PR CNP053, IC452
400mA
2 5 D25XB60
120 F 1/4W RY_MAIN 5 AD421, AD422, AD423, R420
R022 D021 6 3 O O O
YW396-05AV 3
NE_FAN R041 120 F 1/4W R457, R458, R459, R460, R087
WHT NE_A R422 IV_MICOM No PFC
PCJ-112D3MH R426-T, R427-T
120 F 1/4W 1N4148WS 3Shunt
150mA 75V PFCM_SENSE R430-T, R431-T O
4.7K F 1/4W OC_DETECT
R031 120 F 1/4W
Ref. OPTION TABLE IPM402 4719-003458 NEW 30A
2W
2W
PCJ-112D3MH
PFC Control D061, IC061, CE061, CE062
CNP031
400mA 6 3 ZD061, ZD062
R051-T
R052-T
1
0.01 F
0.01 F
8-3
8-4 Indoor Main PCB_DB92-04372C
CN72 CN71
CN79
CN78
CN64 CN62
CN31
CN11 CN63
CN81 CN61
CN42 CN91
CN43
CN91 - DISPLAY CN31 - DOWNLOAD CN42 - TEMPERATURE SENSOR CN43 - TEMPERATURE SENSOR
#1- #4 : DIO ; CLK ; STB ; IRQ #1,4,5,6: Download Signal #1: EVA_TEMP #1: ROOM_TEMP
#5 : GND #2 : VCC #2: GND # 3: EVA_TEMP
#6 : VCC #3: GND # 2-4: GND
#7 : Vout
#8 : PWM_LED
#9: ROOM_TEMP
CN11 - 12V CN81 - SPI CN75 - SMPS INMOTOR
CN61--64-STEP
8-4
8-5. Outdoor PCB_DB92-04360B
8-5
8-6. Wire connecting the indoor unit terminal blocks
1. Terminal press of Ring terminal shall be set facing up before connecting wire.
Is inverted Terminalhasbeencut.
2. There shall be no empty space between Ring terminal and Screw after Clamp.
If not, there exists a possibility of fire which can be caused by electric heat in the connecting part.
, : Good
Bad : Ring terminal is connected reversely
Bad : Not clamped Screw
Bad : In the gap between Ring terminal & Screw
Bad : Unused Ring Terminal
9-1
The actual product may differ slightly from the image depicted below.
05
01
02
03
04 06
07
Display
01 good'sleep indicator
02 Timer indicator
01
Auto clean indicator
02 03 Operation indicator
04 Power button
03
05 04
9-1
9-1-2
9-2
9-2
9-3
10. Troubleshooting
2. Is the line cable linking the indoor unit and the outdoor unit linked properly?
The indoor unit and the outdoor unit shall be linked by 5 cables.
Check the terminals if the indoor unit and outdoor unit are properly linked by the same number of cables.
Otherwise the air conditioner may not operate properly.
3. When a problem occurs due to the contents illustrated in the table below it is a symptom not related to the malfunction
of the air conditioner.
Compressor stops operation intermittently in Dry Compressor operation is controlled automatically in DRY
4
mode. mode depending on the room temperature and humidity.
Timer is being activated and the unit is in ready
Timer LED(ORANGE) of the indoor unit lights up and
5 mode. The unit operates normally if the timer opera-
the air conditioner does not operate.
tion is cancelled.
The compressor stops intermittently or the fan speed
The compressor stops intermittently in a COOL
of the indoor unit decreases to prevent inside/outside
6 mode or DRY mode, and fan speed of the indoor unit
air frozen depending on the inside/outside air tem-
decreases.
perature.
[In case of heat pump model] When the unit is turned off while de-ice is activated,
7 Compressor of the outdoor unit is operating although the compressor continus operation for up to 9
it is turned off in a HEAT mode. minutes(maximum) until the deice is completed.
[In case of heat pump model] The compressor and indoor fan stop intermittently if
room temperature exceeds a setting temperature in
8 The compressor and indoor fan stop intermittenly in order to protect the compressor from overheated air
HEAT mode. in a HEAT mode.
[In case of heat pump model] The compressor operates in a reverse cycle to remove
exterior ice in a HEAT mode, and indoor fan and out-
9 Indoor fan and outdoor fan stop operation
door fan do not operate intermittently for within 20%
intermittently in a HEAT mode. of the total heater operation.
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E101/E102 Communication error(Indoor<->outdoor)
◎ ● ●
Outdoor display
◎ ● ● 1min. Time out Comm.
{ { ●
Abnormal Communication
{ ● ●
OLED ON ◎LED BLINKING {LED OFF
1. Checklist :
1) Is the cable between the indoor unit and outdoor unit connected correctly?
2) Isn't the power cable and communication cable cross?
2. Troubleshooting procedure
YES
YES
YES
YES
NO
Is the communication error occurred again? Terminate the service.
YES
Indoor display
7-SEG DISPLAY DESCRIPTION
E121 Indoor room temp sensor error
1. Checklist :
1) Is the indoor units temperature sensor connected correctly?
2) Is the sensor placed correctly?
3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature?
2. Troubleshooting procedure
YES
Below 0.5V or Over 4.5V? Exchange the indoor PBA
NO
YES
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E122,E123 Indoor MID, Indoor IN PIPE-TH sensor error
◎ ◎ {
OLED ON ◎LED BLINKING {LED OFF
1. Checklist :
1) Is the indoor units temperature sensor connected correctly?
2) Is the sensor placed correctly?
3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature?
2. Troubleshooting procedure
YES
Below 0.5V or Over 4.5V? Exchange the indoor PBA
NO
YES
1. Checklist :
1) Is the input power voltage normal?
2) Is the Up/Down louver motor properly connected with the connector? (CN61, CN62, CN63)
2. Troubleshooting procedure
YES
YES
NO
YES
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E154 Indoor fan error
{ { ◎
OLED ON ◎LED BLINKING {LED OFF
1. Checklist :
1) Is the indoor units fan motor properly connected with the connector(CN72)?
2) Is the AC voltage correct?
2. Troubleshooting procedure
YES
Reassemble the fan wire and input the power again Is there short among YES Exchange the Fan
each pin #1~#6 motor
NO
NO Terminate the
Is the fan error appeared again? service
YES
YES
YES
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E221 Outdoor temperature sensor error
Outdoor display
Outdoor temperature sensor error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Is the sensor connected correctly?
2) Is the sensor placed correctly?
3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature?
4) Is the resistance value of sensor connection pull-up correct?
MODEL "A" "B"
ALL CN251 CN251 #1-#2
2. Troubleshooting procedure
YES
YES
Below 0.5Vdc or Over 4.5Vdc? Exchange the Outdoor PBA
NO
YES
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E231 Outdoor Cond temperature sensor error
Outdoor display
Outdoor Cond temperature sensor error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Is the sensor connected correctly?
2) Is the sensor placed correctly?
3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature?
4) Is the resistance value of sensor connection pull-up correct?
MODEL "A" "B"
ALL CN251 CN251 #5-#6
2. Troubleshooting procedure
YES
YES
Below 0.5Vdc or Over 4.5Vdc? Exchange the Outdoor PBA
NO
YES
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3 Outdoor Discharge temperature
E251
sensor error
Outdoor display
Outdoor Discharge temperature sensor error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Is the sensor connected correctly?
2) Is the sensor placed correctly?
3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature?
4) Is the resistance value of sensor connection pull-up correct?
MODEL "A" "B"
ALL CN251 CN251 #3-#4
2. Troubleshooting procedure
YES
YES
Below 0.5Vdc or Over 4.5Vdc? Exchange the Outdoor PBA
NO
YES
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E416 Outdoor Discharge ove temperature error
Outdoor display
Outdoor Discharge over temperature error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Check the discharge temperature in the outdoor unit
2) Check the compressor locking or gas leak
3) Download the EEPROM data
2. Troubleshooting procedure
YES
YES
YES
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E458 Outdoor fan error
Outdoor display
Outdoor fan error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Are the input power voltage and the power connection correct?
2) Is the motor wire connected to the outdoor PBA correctly?
3) Is there no assembly error or non-assembly in the terminal of motor wire connector?
4) Is there no obstacle at the surrounding of motor and propeller?
2. Troubleshooting procedure
MODEL "A"
ALL CN901
YES
Reassemble the fan wire and input the power again Is there short among YES Exchange the Fan
each pin #1~#6 motor
NO
NO Terminate the
Is the fan error appeared again? service
YES
YES
YES
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E461 Comp starting error
Outdoor display
Comp starting error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Is the connection of cable for the compressor?
2) Is the compressor wire is connected clockwise? U(RED)-V(BLU)-W(YEL)
3) Is the interphase resistance of compressor normal?
2. Troubleshooting procedure
NO
Is the restart error occurred again? Terminate the service
YES
NO
Is the connection of compressor wire is normal? Connect the comp wire normally
YES
NO
Is the restart error occurred again? Terminate the service
YES
YES
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3 Compressor wire missing
E467
◎ { ◎ errorr/rotation error
Outdoor display
O { O Compressor wire missing error/rotation error
OLED ON ◎LED BLINKING {LED OFF
1. Checklist :
1) Is the connection of cable for the compressor?
2) Is the compressor wire is connected clockwise? U(RED)-V(BLU)-W(YEL)
3) Is the interphase resistance of compressor normal?
2. Troubleshooting procedure
NO
Is the restart error occurred again? Terminate the service
YES
Is the connection of
NO
compressor wire is normal? Connect the comp wire normally
(PBA and Compressor)
YES
NO
Is the restart error occurred again? Terminate the service
YES
YES
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E464 IPM Over Current(O.C) Error
◎ { ◎
Outdoor display
{ { ◎ IPM Over Current(O.C) Error
OLED ON ◎LED BLINKING {LED OFF
1. Checklist :
1) Is the IPM Shunt resistance value correct? Check the resistor is opened
2) Is the condition of surrounding temperature abnormal overload?
3) Is there any problem as like the temperature sensor separation or measurement value error?
4) Is the interphase resistance of compressor normal?
2. Troubleshooting procedure
NO
Is the O.C error occurred? Terminate the service
YES
NO
Is the connection of compressor wire is normal? Connect the comp wire normally
YES
NO
Is the O.C error occurred again? Terminate the service
YES
YES
YES
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E469 DC_link voltage sensor error
Outdoor display
DC_link voltage sensor error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Is the input voltage of outdoor terminal block is normal?
2) Is the reactor wire connected?
3) Is the DC_link capacitor("A") assembled in accordance the specification? (Outdoor PBA)
4) Is the DC_link resistor("B") value is normal? (Outdoor PBA)
2. Troubleshooting procedure
MODEL "A" "B"
DB92-02866A CE101,CE102,CE103 R101
DB92-02867A CE053,CE054,CE055,CE056 R062
YES
Is the DC_link
voltage ("A") is normal in operation mode? NO
Check the power input
Normal range(280Vdc~320Vdc)
YES
Is the DC_link
sensing voltage("B") is normal in operation mode? NO
Exchange the Outdoor PBA
Normal range (0.2Vdc~4.8Vdc)
YES
NO
Is the reactor insulation damaged? Exchange the Outdoor PBA
YES
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E488 AC Input Voltage Sensor Error
Outdoor display
AC Input Voltage Sensor Error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Is the input voltage of outdoor terminal block is normal?
2) Is the reactor wire connected?
3) Is the PFC resistor("A") value is normal? (Outdoor PBA)
2. Troubleshooting procedure
MODEL "A" "B"
DB92-02866A/2867A R105,R106,R107,R108 R105
YES
YES
NO
Is the reactor insulation damaged? Exchange the Outdoor PBA
YES
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3 E466 DC-Link voltage under/over error
E483 Over Voltage Protection Error
E484 PFC over load
Outdoor display
DC-Link voltage under/over error
PFC over load
Over Voltage Protection Erro
LED ON LED BLINKING LED OFF
1. Checklist :
1) Is the input voltage of outdoor terminal block is normal?
2) Is the input voltage is higher than 300Vac?
3) Is the reactor wire connected?
4) Is the DC_link capacitor(A") assembled in accordance the specification? (Outdoor PBA)
5) Is the DC_link resistor("B") value is normal? (Outdoor PBA)
MODEL "A" "B"
6) Is the PFC resistor("C") value is normal? (Outdoor PBA) DB92-02866A CE101,CE102,CE103 R101,R102,R103,R104
DB92-02867A CE053,CE054,CE055,CE056 R059,R060,R061,R062
2. Troubleshooting procedure
MODEL "C" "D"
DB92-02866A/2867A R105,R106,R107,R108 R105
YES
YES
YES
YES
NO
Is the reactor insulation damaged? Exchange the Outdoor PBA
YES
Indoor display
3-LED DISPLAY 7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E462 AC Input I_Limit Trip Error
Outdoor display
AC Input I_Limit Trip Error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Is the PFC Shunt("A") resistance value correct? Check the resistor is opened
2) Is the condition of surrounding temperature abnormal overload?
3) Is there any problem as like the tempera
ture sensor separation or measurement value error?
4) Is the interphase resistance of compressor normal?
2. Troubleshooting procedure
MODEL "A"
DB92-02866A R410,R411,R412
DB92-02867A R408,R409,R410
YES
Is the position of
NO Correct the sensor position or
temperature sensor and the sensing
exchange the sensor
value normal?
YES
Is the connection
NO
cable for the compressor and power Correct the cable connection
terminal normal?
YES
Indoor display
3-LED DISPLAY
7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E462 AC Input I_Limit Trip Error
Outdoor display
Current sensor error
Input current sensor error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Is the PFC Shunt("A") resistance value correct? Check the resistor is opened
2) Is the IPM Shunt("B") resistance value correct? Check the resistor is opened
3) Is there no short or open around "C"?
2. Troubleshooting procedure
YES
NO
Is the current sensor error appeared again? Terminate the service
YES
Indoor display
3-LED DISPLAY
7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E474 Heatsink sensor error
◎ { ◎
E500 Heatsink Over Temperature Error
Outdoor display
◎ ◎ O Heatsink sensor error
◎ O { Heatsink Over Temperature Error
OLED ON ◎LED BLINKING {LED OFF
1. Checklist :
1) Are there screws assembly in PBA-heatsink?
2) Is the gap PBA-heatsink
3) Is the fan operation normal?
4) Is the cover assembly in control-box normal?
2. Troubleshooting procedure
YES
YES
Indoor display
3-LED DISPLAY
7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E465 Comp V_limit/I_limit Error
Outdoor display
Comp V_limit/I_limit Error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Is the IPM Shunt("A") resistance value correct? Check the resistor is opened
2) Is the condition of surrounding temperature abnormal overload?
3) Is there any problem as like the temperature sensor separation or measurement value error?
4) Is the interphase resistance of compressor normal?
2. Troubleshooting procedure
MODEL "A"
DB92-02866A R410,R411,R412
DB92-02867A R408,R409,R410
NO
Is the O.C error occurred? Terminate the service
YES
Is the connection NO
of compressor wire is Connect the comp wire normally
normal?
YES
YES
Is the condition of
indoor/outdoor temperature NO
Restart after returning to the normal load
normal load?
YES
YES
Is the compressor
body and interphase resistance YES
Exchange the Outdoor PBA
insulated?
NO
Indoor display
3-LED DISPLAY
7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E470 EEPROM Data Error (no data)
Ƽ Ƽ OTP errorEEPROM Data Error
E471
(Main Micom Inv Micom)
Outdoor display
EEPROM Data Error (no data)
Ƽ OTP errorEEPROM Data Error (Main MicomInv Micom)
LED ON Ƽ LED BLINKING LED OFF
1. Checklist :
1) Is there a short around micom?
2) Is there a short around "A"?
3) Did you download or insert EEPROM IC, after changing outdoor PBA?
2. Troubleshooting procedure
MODEL "A"
DB92-02866A CN501
DB92-02867A CN202
power off and download EEPROM data
(or. Insert the service EEPROM IC)
YES
Indoor display
3-LED DISPLAY
7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
Prohibit Operation Condition Error
E440
(Heating)
◎ { ◎
Prohibit Operation Condition Error
E441
(Cooling)
Outdoor display
O ◎ { Operation condition secession
OLED ON ◎LED BLINKING {LED OFF
1. Checklist :
1) Check the temperature around the outdoor unit.
2. Troubleshooting procedure
YES
YES
Indoor display
3-LED DISPLAY
7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E554 GAS Leak error
Outdoor display
GAS Leak error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Is the position ofi ndoor Eva_in sensor normal?
2) Check the pipe crack
3) Check the EEV valve connection("A") in Outdoor unit
4) Check the refrigerant was charged
MODEL "A"
2. Troubleshooting procedure DB92-02866A CN701
DB92-02867A CN701
YES
NO
Is the gas leak error appeared again? Terminate the service.
YES
NO
Is the EEV valve connection normal? Connect the EEV valve.
YES
YES
YES
1. Checklist :
1) Is input power normal?
2) Is AC power linked correctly? (L,N,E)
3) Is mis-wiring between communication wire and Power wire?
4) Is mis-wiring between Main PBA and SMPS PBA wire?
5) Is input voltage of SMPS AC in Main PBA (CN150) normal?
6) Is the voltage of SMPS DC in Main PBA (CN151,CN152) normal?
2. Troubleshooting procedure
MODEL
ALL
Unplug the power cord
YES
NO
Check the fuse open or not? (F001) Exchange the Main PBA
YES
NO
Is the power normal? Check the power source.
YES
YES
1. Checklist :
1) Is input power normal?
2) Is AC power linked correctly? (L,N,E)
3) Is mis-wiring between communication wire and Power wire?
4) Is input voltage of SMPS DC-link capacitor("A") normal?
5) Is the voltage of SMPS DC normal?
MODEL "A" "B" "C" "D"
DB92-02867A CE101 CN002 CN001 CN003
2. Troubleshooting procedure
DB92-02866A CE101 CN002 CN001 CN003
YES
YES
Rest
NO
Is the power normal? Check the power source.
YES
YES
YES
YES
Indoor display
3-LED DISPLAY
7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E472 AC zero cross signal error
Outdoor display
AC zero cross signal error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Check the power condition at customer's house (Is there any power noise?)
2) Have been there power failure?
2. Troubleshooting procedure
MODEL Error display
DB92-02866A/2867A O
Rest
NO
Is the AC line zero cross signal error appeared again? Terminate the service
YES
Indoor display
3-LED DISPLAY
7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E556 Capacity miss match error
Outdoor display
Capacity miss match error
LED ON LED BLINKING LED OFF
1. Checklist :
1) Check the Btu between indoor and outdoor unit
2) Check the indoor unit option and outdoor unit EEPROM data
MODEL Error display
DB92-02866A/2867A O
2. Troubleshooting procedure
Is the rated Btu between indoor unit NO Exchange the one of them according
and outdoor unit? to the exact model spec
YES
NO
Is the capacity miss match error appeared again? Terminate the service
YES
NO
Is the capacity miss match error appeared again? Terminate the service
YES
YES
YES
1. Checklist :
1) Check if the connector was normally assembled.
2) Check the battery in remote control
3) All the lights out and check again : Change electronic typed to a rescent light
4) Put the set in operation and check the voltage of display PBA
5) Replace the display PBA
Indoor display
3-LED DISPLAY
7-SEG DISPLAY DESCRIPTION
LED1 LED2 LED3
E422 EEV or Valve Close error-Self diagnosis
Outdoor display
EEV or Valve Close error-Self diagnosis
LED ON LED BLINKING LED OFF
1. Checklist :
1) Is the positio ndoor Eva_in sensor normal?
2) Check the pipe crack
3) Check the EEV valve connection("A") in Outdoor unit MODEL "A"
DB92-02866A/2867A CN701
4) Check the refrigerant was charged
2. Troubleshooting procedure
NO
Is the positio ndoor eva_in sensor normal? Indoor sensor take the normal position
YES
Rest
NO
Is the gas leak error appeared again? Terminate the service.
YES
NO
Is the EEV valve connection normal? Connect the EEV valve.
YES
YES
YES
1. Checklist :
1) Check the leakage region.(Use leakage detection liquid or soapy water)
2) When leakage region is found from service valve and piping connection re nut part : After the related measures to check the
refrigerant supplements and operation.
3) If the leakage region is pipe welding part : Weld leakage region after refrigerant gas release.(Brass parts should only apply)
4) If the leakage region is surface area (Heat exchanger or pipe welding region is not) : Replace parts.
5) Check the PBA Relay
- Display of indoor unit : Ensure that the operating pilot lamp has been lighted.
- Ensure that the Relay input voltage of indoor unit PBA is normally.(If the PBA is defective, replace)
2. Troubleshooting procedure
YES
YES
YES YES
Does measurement
pressure include in ±10% extent NO
of reference pressure?
YES
End
1. Check if you pulled out the AC power plug when you eliminate the PCB or front panel
2. Don't hold the PCB side not impose excessive force on it to eliminate the PCB
3. Don’t pull the lead wire but hold the whole housing to connect or disconnect a connector to the PCB
4. In case of outdoor PCB disassembly, check first the complete discharge of condenser after 1 minute power off
10-36
10-2-34 Outdoor detailed inspection procedure
No procedure Inspection Method Cause
. Over current
Plug out and pull the PCB out of
. AC part and pattern short of Indoor
the control box 1) Is 1st fuse disconnected?
1 PBA
Check the PCB fuse 2) Is indoor PBA faulty?
. AC part and pattern short of Outdoor
(Wait 3 minutes after power off)
PBA
1) Is the Compressor wire connected
clockwise?
2) Is the Reactor wire connected
. Wrong assembly
2 Check the Wiring normal?
. Installation(service) condition is bad
3) Is the Fan wire connected normal?
4) Is the 4way wire connected normal?
5) Is the sensor wire connected
Check the power voltage
1) Is the voltage between Terminal . Power cord is faulty, Indoor PBA
block N(1)-1 200Vac~240Vac? fault, Wrong Power cable Wiring
. L,N,E wire wrong wiring (Terminal
Block-PBA)
2) Is the PFC050(#26-#27) input . Fuse open
voltage 200Vac~240Vac? . PTC020 open
. RY021, RY022 is faulty
. Outdoor Micom(IC151) error
Supply power and operate the set . Power circuit is faulty
3 (Use Remote-control, button in 3) Is the CE151 voltage 280Vdc~320dc?
. Load short
indoor set) . PFC050 is faulty
3) Is the CE101 voltage 280Vdc~320dc?
. Reactor wire is wrong connection
. Switching Trans of Power circuit is
4) Is the voltage CE157 voltage 15Vdc? faulty
. Load short
. Switching Trans of Power circuit is
5) Is the voltage CE155 voltage 12Vdc? faulty
. Load short
. Switching Trans of Power circuit is
6) Is the voltage CE153 voltage
faulty
3.3Vdc?
. Load short
1) Normal : RED on, GRN blink, YEL off
2) Abnormal
. L,N,C wire wrong wiring
4 Check the LED lamp display - All off : check no power
. Outdoor PBA is faulty
- abnormal display : check error
mode
10-37
10-3
10-38
12 Reference Sheet
1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th
Project Capacity Sell Year Feature Series Color Unit Export
A R 1 2 N V F P D W K N/X A Z
Division
Division Series Project Color Name 10TH,11TH Remark
Component
P Maldives DA WHITE Grille WK
Maldives
SEDA Grille Color: PM GRAY
Item The existing code The sales area CIS Description 13TH,14TH
1 XAZ Brazil BRAZIL(XAZ) AZ
12-1
12-2 Low Refrigerant Pressure Distribution
Note : Please measure the refrigerant pressure after the air conditioner operates on testing cooling mode during more than
10 minutes.
AR12NVFPDWK/AZ
12-3
12-4
12-4
12-5
12-6
12-5
12-5-1
Tightly grab top of the front panel and pull it down to open.
Then slightly lift the panel up.
Open the panel and put the Air filter out. Clean the Air filter with a vacuum cleaner or soft brush.
If dust is too heavy, rinse it with running water.
Insert the Air filter back in its original position Dry the Air filter in a ventilated area.
and close the front panel.
on the usage and environmental conditions. In dusty area, clean it once a week.
Power
well-ventilated area.
12-7
12-5-2
12-8
12-6
12-6-1
12-6-2
12-9
12-7
12-7-1
12-10
12-7-2
12-11
12-7-3 POWER SUPPLY
Working Voltage 176V ~ 264V
Within a 3% Deviation from Each Voltage at the Main Terminal of
Voltage Imbalance
Outdoor Unit
Starting Voltage Higher than 80% of the Rated Voltage
12-11