Sharp AH-MX122 User manual

INDOOR UNIT
AH-MX122/AH-MX152
OUTDOOR UNIT
AU-MX122/AU-MX152
SPLITTYPE
ROOM AIR CONDITIONERS
Intheinterestsofuser-safety(Requiredbysafetyregulationsinsome
countries) thesetshouldberestoredtoitsoriginalconditionandonly
parts identical to those specified should be used.
SERVICE MANUAL
Page
SPECIFICATIONS ............................................................................................................................................. 2
EXTERNAL DIMENSIONS .................................................................................................................................3
WIRING DIAGRAMS ......................................................................................................................................... 5
ELECTRICAL PARTS.........................................................................................................................................7
BLOCK DIAGRAM ..............................................................................................................................................8
MICROCOMPUTER CONTROL SYSTEM .........................................................................................................9
FUNCTIONS .................................................................................................................................................... 13
FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES ............................................................... 17
BREAKDOWN DIAGNOSIS PROCEDURE .................................................................................................... 19
REFRIGERATION CYCLE ............................................................................................................................. 21
PERFORMANCE CURVES ............................................................................................................................. 22
DISASSEMBLING PROCEDURE.................................................................................................................... 23
REPLACEMENT PARTS LIST .........................................................................................................................30
SHARP CORPORATION

SPECIFICATIONS
MODELINDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT
ITEM AH-MX122 AU-MX122 AH-MX152 AU-MX152
Cooling capacity(Min. ~ Max.) BTU/h 9000(3600~12000) 11700(5400~15000)
Moisture removalLiters/h 0.7 0.7
Electrical data
PhaseSingle
Rated frequencyHz 50
Rated voltage range V 198 to 242
Rated voltage V 220
Rated current A4.2 5.5
Rated input W 818 1090
Power factor % 89 90
Type AC Single Rotary
CompressorModel 44A072QV2DJ HV187XV-S12F3
Oil charge SUNISO 4GDID 280cm3SUNISO 4GDID 370cm3
Evaporator Louver Fin and Grooved tube type , Pre-coat treament
Refrigerant system Condenser Louver Fin and Grooved tube type
ControlCapillary tube
Refrigerant volume 50g 740g 50g 800g
Noise level HighdB(A) 36 43 40 48
(at cooling)Med.dB(A) 32 43 35 48
LowdB(A) 27 43 29 48
Fan system
DriveDirect drive
Air flow quantityHighm3/min. 9.8 30 10.5 30
(at cooling)Med.m3/min. 8.8 30 9.5 30
Lowm3/min. 6.4 30 6.6 30
Fan Cross flow fan Propeller fan Cross flow fan Propeller fan
Connections
Refrigerant coupling Flare type
Refrigerant tube size Gas, Liquid 3/8", 1/4" 3/8", 1/4" 1/2", 1/4" 1/2", 1/4"
Drain piping mm O.D ø 18 - O.D
∅ 18 -
Others Compressor: Thermal protector
Safety device Fan motors: Thermal fuse
Fuse, Micro computer control
Air filters Polypropylene net (Washable)
Widthmm 815 780 815 780
Net dimensionsHeightmm 278 550 278 550
Depthmm 198 269 198 269
Net weightkg 9 33 10 38
Note: The condition of star " " marked item are ‘ISO5151’ : 1994(E), condition T1.

EXTERNAL DIMENSIONS
INDOOR UNIT
OUTDOOR UNIT
Length unit (mm)
19.5
58
CRMC-A442JBE0
R03(AAA) 2PCS.
SHARP CORPORATION
INVERTER AIR CONDITIONER
182
815
278
198
1100
269
179.5
182.5
136
81
780
70
540
310 335
540
12
37.5
4.5
58
158
16

INSTALLATION DIMENSIONS
815 (unit size)
More than 50mm
E
Center of wall hole:
Leftward piping Center of wall hole: Backward piping
Outline of indoor unit
55 95
80 55
AJ
IF
ED
D
FA
CJ H
I
GB
21
278 (unit size)
38
Ceiling
E

Wiring Diagram for AH-MX122 / AH-MX152
WIRING DIAGRAMS
TERMINAL BOARD 1
GREEN-YELLOW
POWER SUPPLY SINGLE PHASE
INDOOR UNIT OUTDOOR UNIT
BROWN In Out
C1
RY1
WPE1 250V 3A
CONTROL BOARD UNIT
LOUVER (UPPER)
LOUVER (LOWER)
ROOM TEMP. THERMISTOR
PIPE TEMP. THERMISTOR
TH1
TH2
3
4
1
2
CN3
YELLOW
ORANGE
RECEIVER BOARD UNIT
DISPLAY BOARD UNIT
BCN2 BCN3
CN101 CN102
CN2
CN7
BCN1
TRANS1 SSR1 S
SERIAL SIGNAL CIRCUIT
FAN MOTOR CAPACITOR 430V 2µF
CN6
CN1
TERMINAL BOARD 2 TERMINAL BOARD
BLACK
RED
BLUE
BLUE
531
N
BLACK
FAN MOTOR
BLUE
RED
COMPRESSOR
FAN MOTOR
UNIT TO UNIT CORD
CONTROL BOARD UNIT
N
1
11
NN 22
R.P.M. SIGNAL
INTERNAL THERMAL FUSE
LED INDICATION FOR SELF-DIAGNOSIS
Abnormal contents
Temperature Indicator Blinking No.
1 2 3 4 5 6 7
14 17 18 19
Short circuit of the outdoor thermistor Overheat of the compressor
Abnormal AC current
Compressor lock
Open circuit of the outdoor thermistor
AC overcurrent
Power module(IPM) abnormality
Open circuit of serial signal line
Short circuit of serial signal line
Abnormal fan motor of indoor unit
Abnormal power factor module(AFM)
< Indication of the abnormal condition >
LED indicator will blink, if the set is in abnormal condition.
MM
M
M

Electronic Control Circuit Diagram for AU-MX122

Electronic Control Circuit Diagram for AU-MX152

BLOCK DIAGRAMS
INDOOR UNIT
AC power
CPU
3 A
WPE1
DC power supply circuit
Fan motor phase control circuit
Rotation pulse input circuit
AC clock circuit
Louvre motor drive circuit(upper)
Louvre motor drive circuit(lower)
Remote controller signal reception circuit
Buzzer drive circuit
CPU reset circuit
CPU oscillator circuit
Room temp. detect circuit
Heat exchanger pipe thermo circuit
Compensation circuit/ select circuit
Compensation circuit
Switchover circuit
Serial I/O circuit
Compressor relay drive circuit
LED drive circuit
Auto restart circuit
Test run circuit
Auxiliary mode
Power on circuit
Room fan motor
Fan motor pulse detect
Flow direction control (louver motor upper)
Flow direction control (louver motor lower)
Wireless remote control operation
Audible operation confirmation
Room temp. thermistor
Heat exchanger pipe thermistor
Blower temperature, fan speed, model select
Outdoor ratings
Wireless, preheat
Indoor/outdoor control signal I/O
Outdoor unit power supply on/off control
LED display
Test run (forced operation)
Auxiliary mode button ON/OFF
Self diagnostics, fault diagnosis
Unit-unit wiring
(AC power and
serial signals)
CPU
15 A
protection
Outdoor fan
4-way valve
Power transistor module
Compressor
Current transformer
Compressor thermistor
Heat exchanger pipe thermistor
Outdoor temperature thermistor
Heat exchanger pipe thermistor(option)
Outdoor temperature thermistor(option)
LED
3 A
protection
10 A
protection
Power supply circuit
(built into IPM)
CPU oscillator circuit
Outdoor fan relay drive circuit
4-way valve relay drive circuit
Power transistor module drive circuit
Serial I/O circuit
CPU reset circuit
DC overcurrent detection circuit
AC overcurrent detection circuit
Compressor thermo circuit
Heat exchanger pipe thermo circuit
Outdoor temp. thermo. circuit
Winter kit circuit (option)
LED drive circuit
Test mode circuit
Filter
circuit
Smoothing
circuit
Unit-unit wiring (AC power
and serial signals)
OUTDOOR UNIT

MICROCOMPUTER CONTROL SYSTEM
Electronic Control Circuit Diagram for AH-MX122 and AH-MX152
(CN9)
LED101
LED104
LED103
LED102
LED110
LED109
LED108
LED107
LED106
LED105
R101
R102
R103
R104
R105
R106
R107
R108
R109
1/2W
1/2W
1/2W
1/2W
220
220
300
220
220
220
220
220
100
1/2W
1/2W
1/2W
1/2W
1/2W
LED111
1/2W
1/2W
1/2W 330
R114
R40 3.3K
50V 50V C21
C22 1000p
1000p
BCN3
BCN2
R58~R62
(SW2)
MOTOR
FAN
IC
HOLE
3 2 1
P00
P01
P02
P03
P04
P05
P06
P07
P10
P11
P12
P13
P14
P16
P17 33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
52 53 54 55 56 57 58 59 60 61 62 63 64 P63
P64 P65 P66 P67 AVss Vref Vcc P30 P31 P32 P33 P34
51 50 49
P35 P36 P20
P21 P22
32 31 30
P23 P24 P25 P26 P27 Vss Xout Xin P40 P41
RESET
CNVss(Vpp)
P42
29 28 27 26 25 24 23 22 21 20 19 18 17
P62
P61
P60
P57
P56
P55
P54
P53
P52
P51
P50
P45
P43
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
NC
M3803**
IC1
(PATTERN SIDE)
PC2
PC1
4
2 4
3
1
2
4.7K
100K
+
0.047µ
50V
250V
0.01µ680 680
2W 2W
680 680
2W 2W
680
2W
22K
P15
1
10K
10K
0.1µ 25V 8M
6 5 4 3 2 1PIPE TEMP.
TH2 10kΩ(25˚C)
15kΩ(25˚C)
ROOM TEMP. TH1
C2
0.22µ
250V
NR1
IN
T
250V
OUT
RY1
WPE
N
N 2S 1
UNIT OUTDOOR TO
TERMINAL BOARD
KID65783AP
IC6 10
SW1
5V
GND
12V
-24V
33K
33K
33K
33K
33K
16V
C26
0.01µ
R41
1.8K
33K 33K 33K
1000P
3 2
3
1
2
R23
3.3K
CN6
100µC810V
+
FAN L
FAN M
FAN H
RATE HEAT
TEA
MODEL 5
MODEL 4
MODEL 3
MODEL 2
MADEL 1
R42 R43
R44 R45
R46 R47
R48 R49
R50 R51
R52
R53
R54
R55
R56
JP 1
JP 2
JP 3
JP 4
JP 5
R67 R66
12K 12K
2W
D9
D8
R65R64
11K
2W 2W
11K
2W
C30
100µ
35V
C29
ZD1
R63
C28 D7
R57
C27
R38
R37
R36 R35 R34
JP8 JP7 JP6
R30
380 R29 680
C19
+ +
C18
10µ
16V16V
10µ
10K
(F)
R27 10K
(F)
R26
R21
R20
R19
C13
C12
C11
IC7
IC8
OSC1
FRONT
1/2W
R9
R8
C9
C10 1000p
50V
25V 0.1µ
R5
RY1
R4
BZ1
BUSY
112V 25V 3 4CLOCK 5SERIAL
OE
6 7RESET
GND
8
HOT KEEP PREHEAT
WIRELESS
2.7K
50V 1000p
1000p
50V
P37
P44
P46
P47
4
3
2
1
7
6
5
8
1
1K
FUSE
THERMAL
SSR1
470
1.8K
16
9
10K
31
POWER SUPPLY SINGLE PHASE
21
JP10
33KR2
TRANS1
D1~4
33K
R3
+
C450V
0.1µ7812
IC2
35V C3
1000µ
IN
0.1µ
25V
OUT
C5
+
47µ
25V
1001/2W R1
JP11
+
C6
25V
47µ
0.1µ
25V C7
IN IC3
D5
7805
25V
0.1µ
R31
IC4
8
NC
9
118
13
11 C31
250V 0.01µ
SSR1
CNR1 L1
430V C1
2µ
FUSE
THERMAL
MOTOR
FAN
5 3 1
CN1
C32
C33
680
R6
CN101
22
33 11 88 11
22
33
44
55
66
77
CN102
NC
NC
10(B2)
11(A2)
12(F2)
15(B1)
18(F1)
17(G1)
16(A1)
14(CM1)
13(CM2)
9(H2)
8(C2)
7(G2)
6(D2)
5(E2)
4(H1)
3(C1)
2(D1)
1(E1)
H2
H1
CM1,2
D2
G2
A2
E2
F2
B2
C2
D1
G1
A1
C1
B1
E1
F1
33K 33K R33
R32
JP9 JP99
TEST POWE ON
R39 20K
C24 16V
0.01µ
1
32
C2550V
1000P
330
W115
1/2W
LED121
R1163301/2W
1/2W R111
330
R112 R110
330
330
1/2W R113330
25V 0.1µ
680 680
Q1
Q2
R68 R69
3A
33K
CN7
0.1µ
25V
33µ
10V
+5V
GND
C201 C202
IC201
BCN201
BCN1
11 33
22
6.8K
8
IC59
116
10K R7
CN3
1 2 3 4 5
LOUVER MOTOR
UPPER
LOWER LOUVER MOTOR
4 5 1CN2 2 3
∆:TEST POINT
(NOTE)
LED101 : OPERATION LED102 : TIMER LED103 : ROOM TEMP. LED104 : OUTDOOR TEMP. SW1 : AUX.(TEST RUN) SW2 : POWER SELECTION LED105 : POWER MONITOR ECO LED106 : POWER MONITOR 1 LED107 : POWER MONITOR 2 LED108 : POWER MONITOR 3 LED109 : POWER MONITOR 4 LED110 : POWER MONITOR POWER
HL
50V
C34
JP34
C1716V 0.01µ
JP23680
NONEUSE
SW2
USE NONE NONENONE NONENONEUSE 15K13K13K 15K15K13K13K15K13K
NONE NONE USENONE NONE NONENONE
USEUSENONE NONENONENONE USENONENONE 13K 15K 13K 13K 15K 15K13K 13K 15K
USE NONE NONE
NONENONEUSEUSE 15K13K13K 15K15K13K13K15K13K
NONE NONE USENONE NONE NONENONE NONE
NONENONENONE NONENONENONE USEUSENONENONENONE 13K 24K 15K13K 13K 15K 15K13K 13K 130K
AH-MX122 AH-MX152 AH-X10BE AY-X08BE AH-MX152 AH-MX122
MODEL JP1 JP2 JP3 JP4 JP5 JP6 JP7 JP8 JP9 R51R50R49R48R47R46R45R44R43R42JP99
68K13K13K 15K15K13K13K ----47K13K
NONEUSE USE NONE USE NONE NONE USE NONE NONE
33K13K13K 2.4K3.6K13K----- 15K15K13K
USE NONE USE NONE USENONE NONE NONE

Printed Wiring Board for AH-MX122 / AH-MX152
QPWBFB389JBZZ
HEAT
COOL
RATE
FAN H
FAN M
FAN L
R43
R51
R47
R49
R45
1
JP1
R53 R54 R55 R56
C27
JP2
JP24
R6
JP22
JP21
C9
R8
JP20
C10 R9
R7
JP3 JP4 JP5
2345
MODEL
SELECT
1
18
16
BZ1
R4
BCN1
CN2
9
11
5
SW1
SW2
3
4IC8
IC4
58
DPWBF JB
R69
R68
C11
C12 R5
JP17
BCN2
31
R20
R30
C21 C22 C23
R31
R20 R19
LOUVER LOW
JP16
JP15
H
LLOUVER UP
CN3 THERMISTOR CN7
151 4
1
19
10
18
18
IC5
BCN3 JP18
JP19
IC6
OSC1
8
916
IC1
116
33 32
17
48
49
49
JP24
JP6
JP7
JP8
JP31
JP33
R35
R36
R34
JP27
R42
R44
R46
R48
R50
C26
R41
R40
C25
JP32
C7
R39 R37
C24 JP29
R31
PC2
PC1
JP23
C17
C29
C3
R58
C32
C2
NR1
R65
R64
C34
Q2 321
R28
C20
R27
C19
R26 C18
JP34
28
9
15
C31
RY1
IC3
WPE1 3A 250V
BLACK
C4
C30
ZD1
JP99
R32
JP9
C8
JP28
D5
IC3
C6
R1
JP11 TRANS1
Q1 R3
R2
C3 (CN8)
1
12 3
38
IC7 C33
JP10
CN9
JP30
C13
R21
JP25 R38
23
3
D7
R63
C28
R57
3412
JP14
TERMINAL
BOARD
TERMINAL
BOARD
JP13
BROWN
IN
OUT
S
RED
N
BLUE
L1
SSR1
1
CN1
FAN M
5
JP12
CNR1
FAN M
CN6
R23
R66
R67 R62
R61 R60 R59
D9
D8
1
D2
D4 D1 D3
C1
3
L
GND
+12V
-24V
+5V
BCN201
C202
C201
13
IC201
FP389-DISPLAY
JP101
CN102
81
LED111 LED110
LED109
LED108
LED107
LED106
LED105
R109
R108
R107
R106
R105
R111
R113
R112 R110
R116 R115
JP102
JP103
R102
LED104
R103
LED103
R101
CN101
13
R114
1018
9
1
LED121
R101
LED102
LED101
TO TERMINAL " 2 " OF
TERMINAL BOARD 4P
(RED)
TO TERMINAL " N " OF
TERMINAL BOARD 4P
(BLUE)
FROM
TERMINAL " 1 " OF
TERMINAL BOARD 3P
(BROWN)
FROM
TERMINAL " 1 " OF
TERMINAL BOARD 4P
(BLACK)
FROM
FAN
MOTOR
FROM
FAN
MOTOR
FROM
THERMISTOR
FROM
LOUVER MOTOR UPPER
(TOP)
FROM
LOUVER MOTOR LOWER
(BOTTOM)