Sharp AH-N45DP2, AH-N56DP2, AU-N45DP2, AU-N56DP2 Service Manual
1
AH-N45DP2
AU-N 45DP2
AH-N56DP2
AU-N 56DP2
INDOOR UNIT
AH-N45DP2
AH-N56DP2
OUTDOOR UNIT
MODELS
SERVICE MANUAL
S3314AHN56DP2
SHARP CORPORATION
In the interests of user-safety (Required by safety regulations in some
countries) the set should be restored to its original condition and only
parts identical to those specified should be used.
SPLIT SYSTEM
ROOM AIR CONDITIONERS
AU-N45DP2
AU-N56DP2
TABLE OF CONTENTS
Page
SPECIFICATIONS .............................................................................................................................................2
EXTERNAL DIMENSIONS ............................................................................................................................... 3
WIRING DIAGRAMS.........................................................................................................................................4
ELECTRICAL PARTS .......................................................................................................................................5
MICROCOMPUTER CONTROL SYSTEM .......................................................................................................6
FUNCTIONS ...................................................................................................................................................10
TROUBLESHOOTING GUIDE OF CONTROL CIRCUIT ................................................................................ 16
REFRIGERATION CYCLE ..............................................................................................................................20
PERFORMANCE CURVES ............................................................................................................................21
REFRIGERANT PIPE INSTALLATION WORKS .............................................................................................21
DISASSEMBLING PROCEDURE ................................................................................................................... 22
REPLACEMENT PARTS LIST ........................................................................................................................31
2
AH-N45DP2
AU-N45DP2
AH-N56DP2
AU-N56DP2
SPECIFICATIONS
ITEMS INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT
AH-N45DP2 AU-N45DP2 AH-N56DP2 AU-N56DP2
Cooling capacity kW 5.0 6.3
Moisture removal Liters/h 1.9 2.5
Electrical data
Phase – Single
Rated frequency Hz 60
Rated voltage V 220
Rated current Cool A 8.5 10.7
Rated input Cool kW 1.82 2.29
Power factor Cool % 97 97
Compressor Type Hermetically sealed rotary type
Model PH28NNBT PH33NPBT
Oil charge 670cc (DIAMOND MS 32(N-1)) 900cc (DIAMOND MS 32(N-1))
Refrigerant system Evaporator Louver fin and Grooved tube type
Condenser Corrugate fin and Grooved tube type
Control Capillary tube
Refrigerant volume
1300g 1570g
Capillary tube size
Outer dia.
mm – 3.2 – 3.5
Inner dia.
mm – 2.0 – 2.2
Length mm – 400 – 800
Q'ty – 1 – 1
Noise level High dB(A) 40 52 44 54
(at cooling) Med. dB(A) 36 – 39 –
Low dB(A) 34 – 37 –
Fan system
Drive Direct drive
Air flow quantity High m3/min. 15.3 48 18.1 50
(at cooling) Med. m3/min. 13.4 – 15.0 –
Low m3/min. 11.3 – 13.7 –
Fan Cross flow fan Propeller fan Cross flow fan Propeller fan
Connections
Refrigerant coupling Flare type
Refrigerant tube size Gas, Liquid 1/2", 1/4" 5/8", 1/4"
Drain piping mm O.D ø 20
Others
Safety device
Compressor: Overload protector(Internal) Compressor: Overload protector(Internal)
Fan motors: Thermal protector (Internal)
Fuse, Micro computer control
Air filters Polypropylene net (Washable)
Net dimensions Width mm 1040 890 1040 890
Height mm 325 645 325 645
Depth mm 220 327 220 327
Net weight kg 16 51 16 60
Note: The condition of star ( ) marked item are ‘CNS 14464 B7291 : T1’.
3
AH-N45DP2
AU-N 45DP2
AH-N56DP2
AU-N 56DP2
570
645
202
122
320
342
890 29037
30
172
25
62
46.3
10.5
ø4.5
EXTERNAL DIMENSIONS
Figure E-1. INDOOR UNIT
Figure E-2. OUTDOOR UNIT
220
1600
Power supply cord
[Length unit : mm]
325
1040
Remote controller
58
18.5
22
140
TEMP.
INVERTER AIR CONDITIONER
TEMP.
MODE
FAN
TIMER
4
AH-N45DP2
AU-N45DP2
AH-N56DP2
AU-N56DP2
WIRING DIAGRAMS
Figure W-1. Wiring Diagram for AH-N45DP2
Figure W-2. Wiring Diagram for AU-N45DP2
室内機
室外機
黒
藍
端子板
端子板
機
組
間
配
線
L
電源
單相
端子板
茶
藍
緑-黄
風扇馬達
電容器
回轉數
檢出信号
風扇馬達
紅
黒
藍
導風板
馬達
室温用
恒温器
熱交用
恒温器
控
制
基
板
受信基板
指示
基板1
指示基板2
指示基板3
電源變厭器
保險絲
内部温度控制器
内部
温度
控制器
In
Out
2.5或3A
400或430V
内部清洗按鈕2
内部清洗按鈕1
離子簇
産生器
注意！
高厭電
蒸發器
CB806
L
電源
單相
機組間配線
端子板
緑-黄
紅
黒
内部温度控制器
風扇馬達
黒
藍
藍
風扇馬達電容器
藍
紅
白
運轉電容器
内部過載継電器
厭縮機
370
或
400V
35μF
控制接地
5
AH-N45DP2
AU-N 45DP2
AH-N56DP2
AU-N 56DP2
Figure W-3. Wiring Diagram for AH-N56DP2
Figure W-4. Wiring Diagram for AU-N56DP2
室内機
室外機
端子板
端子板
機
組
間
配
線
茶
L
電源
單相
端子板
緑-黄
藍
藍
紅
茶
保險絲
控
制
基
板
風扇馬達
電容器
藍
黒
紅
回轉數
檢出信号
内部
温度
控制器
風扇馬達
導風板
馬達
室温用
恒温器
熱交用
恒温器
内部温度控制器
電源變厭器
指示
基板1
受信基板
指示基板3
指示基板2
2.5或3A
250V
400或430V
内部清洗按鈕1
内部清洗按鈕2
離子簇
産生器
注意！
高厭電
蒸發器
L
電源
單相
機組間配線
端子板
黄
茶
藍
緑-黄
内部温度控制器
風扇馬達
黒
藍
藍
風扇馬達電容器
藍
運轉電容器
白
紅
藍
紅
黒
内部過載継電器
厭縮機
継電器
CB807
370
或
400V
35μF
控制接地
6
AH-N45DP2
AU-N45DP2
AH-N56DP2
AU-N56DP2
Part Part Name Items Specifications
No. AH-N45DP2 AH-N56DP2
1 Terminal Board Rating 300V 25A
2 Fan motor Rating 400V or 430V 2µF
Capacitor
3 Relay Rating RY1 AC250V 20A RY4 AC250V 5A
Coil Volt.; 12V Coil Volt.; 12V
4Printed Wiring Material Paper Base Phenolic Resin (UL 94V-0)
Board
5 Transformer Rating Pri 220 - 240VAC Sec. 16.8V DC 0.29A
6 Fan motor Rating 220 - 230VAC 60Hz 41W 4-Pole
Type MLB038
Thermal
Protector
Cut off 135±10˚C
(Internal)
7 Power Supply Rating 20A 250V 12AWG
Cord Type SJT12AWGSJT12 (12AWGX3)
8 Louver Motor Rating DC12V 250
Type MP35EA
Part Part Name Items Specifications
No. AU-N45DP2 AU-N56DP2
1 Terminal Board Rating 300V 25A
2 Fan motor Rating 450V 3µF 450V 3µF
Capacitor
3 Running Rating 370V or 400V 35µF 370V or 400V 35µF
Capacitor
4 Compessor Rating AC208 - 230V 60Hz 1250W AC208 - 230V 60Hz 1600W
Type PH28NNBT PH33NPBT
5 Fan motor Rating 220VAC 60Hz 63W 6-Pole 220VAC 60Hz 86W 6-Pole
Type MLB027 MLB028
Thermal protector Cut off 135˚C±5˚C
(Internal)
6 Relay Rating – AC250V 30A
Coil volt: 200 -240V
ELECTRICAL PARTS
7
AH-N45DP2
AU-N 45DP2
AH-N56DP2
AU-N 56DP2
MICROCOMPUTER CONTROL SYSTEM
Figure L-1. Electronic Control Circuit Diagram for AH-N45DP2
MODE
13K
R37
L2
NC
NC
56
L 1
9.1K
R45
1/2W
10K
D14
25V
47
µ
C29
+
NF1
6.8K
6.8K
R41
100
L1
SSR1
C31
1W
275V
0.033
µ
Q8 Q7
Q6
Q5
JP21
3
131
NR1
CN9
THERMOSTAT
INTERNAL
CN8
CN7
CN6
CN5
CN3
CN2
CN1
1
2
3
1
CLUSTER
R35
3.3K
R40
R39
10K
CLEANING
SWITCH 1
SWITCH 2
CLEANING
31
D8D9
3
2
1
2
3
3
2
2
0.01
µ
C22
16V
2
0.01µ
C10
16V
22K
R6
20K
Q2
1
R5
22K
R4
R27
2
1/2W
9
470
R30
SSR2
3
12V
5V
10
9
25V
C24
SW101
2
11
2
8
IC4
10K
R29
R28
1.8K
BZ1
RY1
SSR1
1/2W
470
IC5
8
9
Q1
16V
220µ
10K(F)
+
D6
25V
0.1µ
1
2
453
MOTOR
LOUVER
32154
123
HOLE
IC
FAN
MOTOR
2
3
JP3
JP2
JP1
NC
MB89537A
1
IC6
3
10K
13K
13K
25V
0.1
µ
1
µ
50V
IC1
(PATTERN SIDE)
400V
0.01µ
16V
JP5
JP4
1K
0.01
µ
OSC1
FRONT
P21
P22
P23
P24
P25
P26
P27X1X0
MOD1
MOD0
RST
32313029282726252423222120
Vcc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
P45
P46
P47
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AVR
P60
P61
P62
P63
P64
P31
P32
P33
P34
P35
P36
P37
P40
P41
P42
P43
P44
52535455565758596061626364
P30
NC
P00
P01
P02
P03
P04
P05
P06
P07
P10
P11
P12
P13
P14
P15
P16
P17
P20
49
50
51
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
AVcc
AVss
Vss
50V
1000p
+
680
10K 10K
10
µ
16V16V
10
µ
10k
(F)
10K
(F)
432
1
TH2
PIPE TEMP
15kΩ(25˚C).
TH1
ROOM TEMP
10kΩ(25˚C).
FAN
MOTOR
2µ
135
2.7K(F)
D7
+
35V
1000µ
50V
0.1µ
7812
IC2
+
25V
47µ
7805
0.1µ
IC3
25V
10V
100µ
+
C7
D1?4
GND
22.6K(F)
3.3K
4
5
IC8
123
876
0.1µ
25V
16V
0.01µ
TR1
C1
C2
C3
C4
C5
C6 C8
C9
C11
C13
C14
C15 C17
C18
C19
C20
C21
C23
C25
R7
R8
R9
R10
R13
R14
R15
R16
R18
R19
R20
R21
R22
R23
R24
R25
R26
R32
R34
10K
16V
16V
16V
0.01µ
0.01µ
0.01µ
6.8K
R12
47K
R11
10MHz
JP10
JP11
JP12
JP13
JP18
10K
10K
0.01µ
16V
0.01
µ
16V
R17
3.3K
13K
C27
C12
SW1 : AUX.(TEST RUN)
C16
25V
0.1
µ
1
R31R33
+
+
C26
321
1
BCN1
2345678
R37
6
7
135
1K(F)
1
0.1µ
D12
3
R108
10
32
(TIMER)
LED102
LED101
(OPERATION)
1
12
BL
GR
LED107
(CLUSTER)
134256
9
R107
(FAN L)
(FAN M)
(FAN H)
(FAN AUTO)
LED106
LED105
LED104
LED103
3K
2.7K
R102
R101
1/2W
1/2W
C102
C101
0.1µ
25V
33µ
10V
+
IC101
BCN101
R103
R104
R105
R106
620
620
123
1
8765432
620
620
1/2W
1/2W
56
CN10
CN103
BCN102
CN102
CN101
275V
275V
0.1
µ
0.1
µ
275V
C28
8
6
SSR2
2W
2W
R1
R2
NC
NC
NC
NC
JP9
JP8
JP7
JP19
DEIC
E 1
DEIC
E 2
DRY
FAN
PIPE
1
PIPE
2
NONENONENONENONE
JP7 JP8 JP9
JP10 JP11 JP12 JP13
TEST
NONE
JP6
NONE 15K 15K 15K
JP18 JP19
LOUVOUT
FAN
CLUS
TER ER
R19 R21 R23
FAN2FAN1
HEAT COOL
MODE
R38
R38
ON
PWR
LESS
WIRE
AT
SWE-
KEEP
HOT
DEF.
SYMBOL
I
JP2 JP3 JP4 JP5JP1
IN
OUT
RY1
WPE1T250V
2.5A
1
N
BOARD
TERMINAL
L
N
PHASE
SINGLE
SUPPLY
POWER
TERMINAL
BOARD
A
BL
BK
BR
UNIT
OUTDOOR
TO
NONENONEUSE USE USE USE USE USENONE
47
CT1
BL
BL
8
AH-N45DP2
AU-N45DP2
AH-N56DP2
AU-N56DP2
igure L-2. Printed Wiring Diagram for AH-N45DP2
2
FB441
2
FB441
2
2
FB441
2
FB441
2
TO TERMINAL
BOARD TOPN
TO TERMINAL BOARD
TOPN
TO TERMINAL BOARD
BOTTOMN
FROM TERMINAL
BOARD TOP1BLACK
FROM
TERMINAL
BOARD BOTTOM
LBROWN
FROM FAN MOTOR
FROM
FAN MOTOR
FROM CLUSTER GENERATOR
FROM
CLUSTER
GENERATOR
FROM CLEANING SWITCH 1
FROM
CLEANING
SWITCH 2
FROM THERMISTOR
FROM LOUVER MOTOR
BCN101(BCN201)
9
AH-N45DP2
AU-N 45DP2
AH-N56DP2
AU-N 56DP2
Figure L-3. Electronic Control Circuit Diagram for AH-N56DP2
L2
R37
13K
MODEHOT
KEEP
SWE-
AT
WIRE
LESS
PWR
ON
DEIC
TEST
NONE NONE NONE NONE
JP13JP12JP11JP10
JP9JP8JP7
2
PIPE
1
PIPE
FAN
DRY
E 2
DEIC
E 1
NONE
JP6
COOLHEAT
FAN1 FAN2
R23R21R19
ERTER
CLUS
FAN
OUT LOUV
JP19
NONE 15K15K
JP18
MODE
L
R38
NONE USE USE USE USE USEUSENONE NONE
JP1 JP5JP4JP3JP2
I
SYMBOL
DEF.
1/2W
R4547
TO
OUTDOOR
UNIT
BR
E
A
BOARD
TERMINAL
2
POWER
SUPPLY
SINGLE
PHASE
N
L
TERMINAL
BOARD
N
1
2.5A
250VTWPE1
8765432
BCN1
1
123
C26
+
+
R33 R31
1
0.1µ
25V
C16
SW1 : AUX.(TEST RUN)
C12
R37
C27
13K
3.3K
R17
16V
0.01µ
16V
0.01µ
10K
10K
JP18
JP13
JP12
JP11
JP10
10MHz
R11
47K
R12
6.8K
0.01µ
0.01µ
0.01µ
16V
16V
16V
10K
R34
R32
R26
R25
R24
R23
R22
R21
R20
R19
R18
R16
R15
R14
R13
R10
R9
R8
R7
C25
C23
C21
C20
C19
C18
C17C15
C14
C13
C11
C9
C8C6
C5
C4
C3
C2
C1
TR1
0.01µ
16V
25V
0.1µ
678
321
IC8
5
4
3.3K
22.6K(F)
GND
D1?4
C7
+
100µ
10V
25V
IC3
0.1µ
7805
47µ
25V
+
IC2
7812
0.1µ
50V
1000µ
35V
+
D7
2.7K(F)
531
2µ
MOTOR
FAN
123
4
(F)
10K
(F)
10k
10µ
16V 16V
10µ
10K10K
680
+
1000p
50V
Vss
AVss
AVcc
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
51
50
49
P20
P17
P16
P15
P14
P13
P12
P11
P10
P07
P06
P05
P04
P03
P02
P01
P00
NC
P30
64636261605958575655545352
P44
P43
P42
P41
P40
P37
P36
P35
P34
P33
P32
P31
P64
P63
P62
P61
P60
AVR
AN7
AN6
AN5
AN4
AN3
AN2
AN1
AN0
P47
P46
P45
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Vcc
20212223242526272829303132
RST
MOD0
MOD1
X0X1P27
P26
P25
P24
P23
P22
P21
F
R
O
N
T
OSC1
SSR1
0.01µ
1K
JP4
JP5
16V
0.01µ
400V
(PATTERN SIDE)
IC1
50V
1µ
0.1µ
25V
13K
13K
10K
3
IC6
1
MB89537A
NC
JP1
JP2
JP3
3
2
MOTOR
FAN
IC
HOLE
321
4
5
123
LOUVER
MOTOR
35421
0.1µ
25V
D6
+
10K(F)
220µ
16V
Q1
9
8
IC5
470
1/2W
SSR1
RY4
BZ1
1.8K
R28
R29
10K
IC4
8
2
11
2
SW101
C24
25V
9
10
5V
12V
3
SSR2
R30
470
9
1/2W
2
R27
R4
22K
R5
1
Q2
20K
R6
22K
16V
C10
0.01µ
2
16V
C22
0.01µ
2
1
2
3
3
2
1
2
3
D9 D8
13
CLEANING
SWITCH 2
SWITCH 1
CLEANING
10K
R39
R40
3.3K
R35
CLUSTER
1
3
2
1
CN1
CN2
CN3
CN5
CN6
CN7
CN8
INTERNAL
THERMOSTAT
CN9
NR1
131
3
JP21
Q5
Q6
Q7Q8
6
7
135
820(F)
0.1µ
D12
56
56
1/2W
1/2W
620
620
2345678
1
321
620
620
R106
R105
R104
R103
BCN101
IC101
+
10V
33µ
25V
0.1µ
C101
C102
1/2W
1/2W
R101
R102
2.7K
3K
LED103
LED104
LED105
LED106
(FAN AUTO)
(FAN H)
(FAN M)
(FAN L)
R107
9
65 243 1
(CLUSTER)
LED107
GR
BL
21
1
(OPERATION)
LED101
LED102
(TIMER)
23
10
R108
3
CN103
BCN102
CN102
CN10
CN101
275V
275V
0.1µ
R2
R1
2W
2W
SSR2
6
8
C28
275V
0.1µ
JP9
JP8
JP7
JP19
R38
NC
NC
NC
NC
L1
100
R41
1W
C31
0.033µ
275V
6.8K
6.8K
NF1
D14
+
C29
47µ
25V
10K
275V
RY4
R44
0.01µ
C34
1W
D
NC
NC
47K 5.1K
RE
BL
CT1
BL
BL
BR
TH1 PIPE
TEMP.
10kΩ(25˚C)
TH2 PIPE
TEMP.
15kΩ(25˚C)
10
AH-N45DP2
AU-N45DP2
AH-N56DP2
AU-N56DP2
igure L-4. Printed Wiring Diagram for AH-N56DP2
2
FB441
2
FB441
2
2
FB441
2
FB441
2
TO TERMINAL BOARD
TOPN
TO TERMINAL BOARD
TOPN
TO TERMINAL BOARD
BOTTOMN
TO TERMINAL
BOARD TOP
2
TO TERMINAL
BOARD BOTTOM
L
FROM FAN MOTOR
FROM
FAN MOTOR
FROM CLUSTER GENERATOR
FROM
CLUSTER
GENERATOR
FROM CLEANING SWITCH 1
FROM
CLEANING
SWITCH 2
FROM THERMISTOR
FROM LOUVER MOTOR
BCN101(BCN201)
11
AH-N45DP2
AU-N 45DP2
AH-N56DP2
AU-N 56DP2
Microcomputer (IC1)
IC1 is a CMOS, one chip, 8-bit microcomputer.
Microcomputer port allocation is as follows.
Pin Terminal Input
No. Name Output Function
1 P45 IN –
2 P46 IN HOOT KEEP
3 P47 IN SWEET
4 AN0 IN ROOM TEMP.
5 AN1 IN PIPE TEMP.
6 AN2 IN CT
7 AN3 IN CLUSTER SENS.
8 AN4 IN MODEL
9 AN5 IN LOUVER SET
10 AN6 IN FAN SET COOL
11 AN7 IN FAN SET HEAT
12 AVCC IN 5V
13 AVR IN 5V
14 AVSS IN 0V
15 R60 IN WIRELESS SIGNAL
16 R61 IN AC CLOCK
17 R62 IN SW1
18 R63 IN WIRELESS HEDDER
19 R64 IN POWER ON
20 RST IN RESET SUGNAL
21 MOD0 IN 0V
22 MOD1 IN 0V
23 X0 IN OSILLATION
24 X1 IN OSILLATION
25 VSS IN 0V
26 P27 IN –
27 P26 OUT FAN MOTOR A CONTROL
28 P25 OUT
OUTDOOR FAN M. CONTROL
29 P24 OUT VALVE CONTROL
30 P23 OUT COMPRESSOR CONTROL
31 P22 OUT BUZZER
32 P21 OUT
CLUSTER GENERATOR CONTROL
Pin Terminal Input
No. Name Output Function
33 P20 IN CLEANING SW1
34 P17 OUT LOUVER MOTOR
35 P16 OUT LOUVER MOTOR
36 P15 OUT LOUVER MOTOR
37 P14 OUT LOUVER MOTOR
38 P13 NC –
39 P12 NC –
40 P11 NC –
41 P10 NC –
42 P07 OUT LED 107 (GREEN)
43 P06 OUT LED 107 (BLUE)
44 P05 OUT LED 101
45 P04 OUT LED 102
46 P03 OUT LED 103
47 P02 OUT LED 104
48 P01 OUT LED 105
49 P00 OUT LED 106
50 N5 NC –
51 P30 OUT
CLUSTER POLARITY CONTROL
52 P31 IN DEICE 2
53 P32 IN DRY FAN
54 P33 IN PIPE 1
55 P34 IN PIPE 2
56 P35 IN INDOOR FAN MOTOR R.P.M.
57 VCC IN 5V
58 P36 IN CLUSTER SET
59 P37 IN –
60 P40 IN TEST
61 P41 IN DEICE 1
62 P42 IN/OUT EEPROM
63 P43 IN/OUT EEPROM
64 P44 IN OUT FAN
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