Sharp AY-A079E User manual

AY/AE-A079E
AY/AE-A099E
1
Page
SPECIFICATIONS ........................................................................................................................................... 2
EXTERNAL DIMENSIONS............................................................................................................................... 3
WIRING DIAGRAMS....................................................................................................................................... 4
ELECTRICAL PARTS ...................................................................................................................................... 5
MICROCOMPUTER CONTROL SYSTEM...................................................................................................... 8
FUNCTIONS ................................................................................................................................................... 9
TROUBLESHOOTING OF THE CONTROL CIRCUIT .................................................................................. 17
REFRIGERATION CYCLE........................................................................................................................... 21
PERFORMANCE CURVES .......................................................................................................................... 23
REFRIGERANT PIPE AINSTALLATION WORKS ......................................................................................... 24
DISASSEMBLING PROCEDURE ................................................................................................................. 25
REPLACEMENT PARTS LIST....................................................................................................................... 29
TABLE OF CONTENTS
SERVICE MANUAL
S2915AYA099E/
SHARP CORPORATION
SPLIT SYSTEM
ROOM AIR CONDITIONERS
INDOOR UNIT
AY-A079E
AY-A099E
AE-A079E
AE-A099E
Intheinterestsofuser-safety(Requiredbysafetyregulationsinsome
countries) thesetshouldberestoredto itsoriginalconditionandonly
parts identical to those specified should be used.
OUTDOOR UNIT
MODELS

AY/AE-A079E
AY/AE-A099E
2
SPECIFICATIONS
ITEMS INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT
AY-A079E AE-A079E AY-A099E AE-A099E
Cooling capacity kW 2.1 2.6
Heatpump kW 2.4 3.0
Heating capacity
Moisture removal Liters/h 0.9 1.2
Electrical data
Phase – Single
Rated frequency Hz 50
Rated voltage range V 198 to 264
Rated voltage V 220 - 240
Rated current Cool A 3.2 - 3.1 4.1 - 3.9
Heat A 2.9 - 2.8 4.0 - 3.9
Rated input Cool W 680 - 720 890 - 920
Heat W 630 - 670 880 - 920
Power factor Cool % 97 - 97 99 - 98
Heat % 99 - 99 99 - 98
Compressor Type Hermetically sealed rotary type
Model 2PS134D5AA01 RH174VHET
Oil charge 270cc (SUNISO 4GDID) 300cc (DIAMOND MS56)
Refrigerant system Evaporator Louver fin and Grooved tube type(7mm tube)
Condenser Corrugate Fin and Grooved tube type
Control Capillary tube
Refrigerant volume 690g 730g
De-lce system Micro computer controled reverse sysetm
Noise level High dB(A) 33 43 38 43
(at cooling) Med. dB(A) 29 – 31 –
Low dB(A) 26 – 27 –
Fan system
Drive Direct drive
Air flow quantity High m3/min. 5.8 20 7.1 20
(at cooling) Med. m3/min. 4.9 – 5.3 –
Low m3/min. 4.3 – 4.4 –
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"
Refrigerant pipe sets No. AZ-24H5E; 5m(16.4ft), AZ-24H7E; 7m(23ft)
Drain piping mm(Inches) O.D ø 18(45/64)
Others
Safety device Compressor: Overload protector(MRA98589) Compressor: Overload protector(Internal)
Fan motors: Thermal fuse
Fuse, Micro computer control
Air filters Polypropylene net (Washable)
Net dimensions Width mm 790 720 790 720
Height mm 270 535 270 535
Depth mm 155 236 155 236
Net weight kg 7 27 7 31
Note: The condition of star (
) marked item are ‘IEC 378’.

AY/AE-A079E
AY/AE-A099E
3
270
790 155
Remote control
58 19.5
182
Length unit (mm)
EXTERNAL DIMENSIONS
Figure E-1. INDOOR UNIT for AY-A079E and AY-A099E
Figure E-2. OUTDOOR UNIT for AE-A079E and AE-E099E
430
720
775
143 55
245
535
278
236
228
20˚
58

AY/AE-A079E
AY/AE-A099E
4
WIRING DIAGRAMS
Figure W-1. Wiring Diagram for AY-A079E and AY-A099E
Figure W-2. Wiring Diagram for AE-A079E
THERMISTOR
(PIPE TEMP.)
THERMISTOR
(ROOM TEMP.)
LOUVER
MOTOR
1
2
3
4
5
6CN5
CN3
CN101
BCN1
CN2
BCN2
CN201
RECEIVER
& LED UNIT
SWITCH
UNIT
THERMAL FUSE
TRANSFORMER
CONTROL 
BOARD 
UNIT 2
WH WH
RE
RE
FAN MOTOR 
CAPACITOR
400V 1µF
FAN MOTOR
R.P.M
SIGNAL
BL
BL GR
RE
CN6
CN7
CN4 CN1
SSR
RY2
RY3
(B)
(A)
(F)
(E)
NR
VARISTOR
RY
CONTROL BOARD UNIT 1
OUT
C.T.
IN BK
OR
PU
BL
250V
FUSE 
T2.5A
INDOOR UNIT
TERMINAL 
BOARD 2 OUTDOOR UNIT
TERMINAL
BOARD
EVAPORATOR
THERMAL 
FUSE
TERMINAL
BOARD 1
POWER
SUPPLY
CORD
BR
BL
G(Y)
N
L
G(Y)
G(Y) G(Y)
N1
2
3
UNIT TO UNIT CORD
BL
BR
BL BK
BL
BR
GR
G(Y)
RE
WH
OR
PU
: BLACK
: BLUE
: BROWN
: GRAY
: GREEN–YELLOW
: RED
: WHITE
: ORANGE
: PURPLE
N
5
7
1
2
1
2
3
5 3 1
INDOOR UNIT
TERMINAL BOARD2
TERMINAL 
BORAD1
UNIT TOUNIT CORD
OUTDOOR UNIT
TERMINALBOARD
CONDENSER
THERMAL
FUSE
FAN
MOTOR VALVE COIL
FANMOTOR
CAPACITOR
400V1.5µF
COMPRESSOR
MOTOR
MOTORPROTECTOR
RUNNING
CAPACITOR
370V25µF
BK
BK
WH
RE
R
BL
RE
BL
BL
BK
BL RE
RE
G(Y)
G(Y)
C
S
I
2
3
N
I
2
3
N
N
L
BK
BL
G(Y)
RE
WH
:BLACK
:BLUE
:GREEN-YELLOW
:RED
:WHITE

AY/AE-A079E
AY/AE-A099E
5
ELECTRICAL PARTS
For Model AY-A079E and AE-A079E
DESCRIPTION MODEL REMARKS SITE
Compressor 2PS134D5AA01 220/240V, 50Hz, 650W AE
Indoor fan motor ML-A411 220/240V, 50Hz AY
Outdoor fan motor ML-A592 220/240V, 50Hz AE
Indoor fan motor capacitor – 400V, 1µF AY
Outdoor fan motor capacitor – 400V, 1.5µF AE
Running capacitor – 370V, 25µF AE
Transformer – Primary; AC 220V,50Hz AY
Secondary; AC16.1V, 50Hz
Fuse 250V, 2.5A AY
Reverse valve MMB-26A 240V AE
Reverse valve coil RSV-10 – AE
For Model AY-A099E and AE-A099E
DESCRIPTION MODEL REMARKS SITE
Compressor RH174VHET 220/240V, 50Hz, 800W AE
Indoor fan motor ML-A411 220/240V, 50Hz AY
Outdoor fan motor ML-A592 220/240V, 50Hz AE
Indoor fan motor capacitor – 400V, 1µF AY
Outdoor fan motor capacitor – 400V, 1.5µF AE
Running capacitor – 370V, 25µF AE
Transformer – Primary; AC 220V, 50Hz AY
Secondary; AC16.1V, 50Hz
Fuse – 250V, 2.5A AY
Reverse valve MMB-26A 240V AE
Reverse valve coil RSV-10 – AE
Figure W-3. Wiring Diagram for AE-A099E
INDOOR UNIT
TERMINAL BOARD2
TERMINAL 
BORAD1
UNIT TOUNIT CORD
OUTDOOR UNIT
TERMINALBOARD
CONDENSER
THERMAL
FUSE
FAN
MOTOR VALVE COIL
FANMOTOR
CAPACITOR
400V1.5µF
COMPRESSOR
MOTOR
MOTOR
PROTECTOR
RUNNING
CAPACITOR
370V25µF
BK
BK
WH
RE
R
BL
RE
BL
BL
BK
BL RE
RE
G(Y)
G(Y)
C
S
I
2
3
N
I
2
3
N
N
L
BK
BL
G(Y)
RE
WH
:BLACK
:BLUE
:GREEN-YELLOW
:RED
:WHITE

AY/AE-A079E
AY/AE-A099E
6
Figure L-1. Electronic Control Circuit Diagram for AY-A079E and AY-A099E
+
–
+
–
+
–
+
–
+
–
+
–
+
–
19
P41 18 P42 17 P43 16 P44 15 P45 14 P46 13
F12
RESET
33 P27 34 P26 35 P25 36 P24 37 P23 38 P22 39 P21 40 P20 41 K1 42 P17 43 P16 44 P15 45 P14 46 P13 47 P12 48 P11 49 P10 50 P07 51 P06
11
CK1
SM8313
IC1 10
CK2 9
AGND 8
P30 7 P31 6 P32 5 P33 4 P50 3 P51 2 P52 1 P53
32
TEST
52 P05
53 P04
54 P03
55 P02
56 P01
57 P00
58 GND
59 VDD
60 VR
61 P57
62 P56
63 P55
64 P54
31
30
OCS
IN
OCS OUT
29
P60 28
P61 27
P62
26
GND 25
P63 24
P64 23
P65 22
P66 21
KH 20
P40
IC3 IC2
IC5
RPM
4 3
3 2 1
3 2 1
4
1 5
1
1 2 3
5 4 3 2 1
1 2 3 4 5
1 2 3 4 5
7 6 1 8
7 6 1 8
55
1 2 3 4 5 6
L
N N
1
2
3
3 5
2
2 2
7
3
C6  100µ 10v
C5  0.1µ 50v
C4  47µ 25v
C3  0.22µ 50v
C16 0.1µ 50v C14 
0.01µ 16v
C14 1000P 50v
C15 0.1µ 50v
C19 0.01µ 50v
C21 1000P 50v
C7 0.1µ 50v
C23 1000P 50v
C17 1000P 50v
C13 1000P 50v
C8  10µ 10v
(C102) 0.1µ 25v
C101 33µ 10v
C11 10µ 16v
C10 10µ 16v
C22 1000P 50v
C2  2200µ 35v
C1  0.1µ 250vAC NR
R2  22k
R30  10k
R22  1k
R4  6.8k
R7  3.3k
R23 33k
R19 10k
R18 15kF
R17 15kF
R5  2.7k
R24  4.7k
R21 10k R20 10k
10k 10k 10k 10k
R31 R32 R33 R34 R35 R36 R37 R38 R39
22k(F) 22k(F) 22k(F) NONE 22k(F)
R25  1.2k
R29 330
R41 10k R40 10k
R28 680
R26 680
NC
NC
NC
NC
NC
NC
NC
R3  22k
R6  470  1/2w
RY1 RY3
RY2
D5
OUT
5V 12V
OUT 7812
D1 D3 D4
D2
C D
A B
13 11
SSR
S201D01
L
FUSE
CT
2.5A 250V
CNR3
C12 0.01µ250vAC
FAN MOTOR CAPACITOR
THERMAL PROTECTOR
A
IN OUT
RY1
E
RY2
CNR1 CNR2F
RY3
POWER SUPPLY
TERMINAL BOARD 3P GREEN/YELLOW
EARTH LINE NEUTRAL LINE COMPRESSOR VALVE COIL OUT DOOR UNIT
FAN MOTOR
BCN2 BCN1 CN2
CN2
Q3
3
12
CN1
12V
TR
12V
Q2
2
1
3
IC4
9
8
12V
BCN1
SSR
CN101
CN201 CN7
CN6
PHOTO DETECTOR UNIT
AUX.
(TEST RUN)
(YELLOW) LED102
(RED) LED101
2 3
BCN2
CN3
CN4
BCN1 BCN2
LOUVER MOTOR
FUNCTION 12H / 24H
IC1 PIN NO. 19
(P41)
SYMBOL JP10
AY-A079E X NONE
DEICE
BDEICE
A
15
(P45)
JP5
14
(P46)
JP4
SWEAT
ON/OFF
8
(P30)
JP6
D. FAN OFF
OFF/ON
17
(P43)
JP9
X NONE
OFF WIDEH
3/5min.
16
(P44)
JP7
X NONE X NONE X NONE
WIRELESS
CHANG/
NORMAL
5
(P33)
JP2
X NONE X NONE
NOTE :
1. : TEST POINT
5V
BCN2 BCN1
D9
5V
D8
5V
5V
5V
5V
5V 5V
5V
5V
5V
5V
12V
TEST
D7
R14 2k(F)
R13 10k(F)
R16 13.7k(F) C9
16V 220µ
C20 50V 1000P
TH1
ROOM TEMP.
15k(25˚C)
TH2
PIPE TEMP.
15k(25˚C)
BZ
5V
5V
10V
NC NC NC
NC NC
NC
1 2 3 4
8 7
IC6
6 5
JP14
DE. FAN B
12H/24H
SWEAT
PREHEAT
FAN L FAN M FAN H
MODEL B MODEL A
WIRELESS
RPM PLUSE
DEICE B DEICE A
D. FAN OFF
OFF WIDEH
DE. FAN A FREEZE B FREEZE A
POWER ON
JP13 JP12 JP11
JP9 JP7 JP5 JP4 Q1
OCS
8MHz
3
3
3
2
1
1
1
2
2
JP10
JP6 JP3 JP1 JP2
R10 R9 R8 R12 R11
JP8
CN5
IN IN
THERMAL FUSE
GND GND
2. Not specified is 1/5w
USE
RPM
PLUSE
1/3
7
(P31)
JP3
USE
PREHEAT
OFF/ON
6
(P32)
JP1
FAN L
4
(P50)
R10
140k(F)
FAN M
3
(P51)
R9
FAN H
2
(P52)
R8
22k(F)24.9k(F)
MODEL
B
1
(P53)
R12
133k(F)
MODEL
A
64
(P54)
R11
X NONE
DE. FAN
B
33
(P27)
JP14
X NONE
DE. FAN
A
34
(P26)
JP13
X NONE
FREEZE
B
35
(P25)
JP12
X NONE
FREEZE
A
36
(P24)
JP11
X NONE
POWER ON
ON/OFF
40
(P20)
JP8
USE
AY-A099E X NONE X NONE X NONE X NONEUSEUSEUSE USE 140k(F) 15k(F) 1.87k(F)15k(F) 107k(F) X NONE X NONE X NONE X NONE X NONEUSE
+
–
R15 2.7k(F)

AY/AE-A079E
AY/AE-A099E
7
Figure L-2. Printed Wiring Board
Thermistor
CN7
CN6
CN101
CN201
Indoor fan motor(R.P.M. Signal)
Indoor fan motor
Terminal board L
Terminal board " 1 "
Transformer BCN2 BCN1 TRANSFORMER
Louver motor
Fan motor capacitor
Fan motor capacitor
250V
2.5A
FUSE
INOUT
RY1
RY3
RY2
DPWBFA JBK0(P)
QPWBFB252JBE0(P)
R3
R26
R41
R40
C23 C13
R28
IC2 R29
JP46
D9
CN6
C22
C21
C20
R20
R15
R16
R21
R39
R25
OUT
IN
81
1
13
3
QPWBFB252JBE0(C)
DPWBFA JBK0(C)
R2
C2
D5
CNR3
C8
C7
C12 C4
C9
IC3
JP49
CT
JP 27
JP42
CN3 CN5
CN4
JP44
JP43
OSC
IC5
JP9
JP48
JP47
R11
R12
R8
R9
R35
C15
R10 C101
SW201
TEST
RUN AUX.
SW202
CN101
CN201
LED101 LED102
RECEIVER UNIT
QPWBFB124JBE0
QPWBFA652JBE0
OPERATION
(RED) TIMER
(YELLOW)
JP3
JP2
JP6
R36
R34
R32
R31
MODEL A
MODEL B
FAN H
FAN M
FAN L
WIRELESSL
D. FAN OFF
12H / 24H
OFF WIDEH
DEICE B
DEICE A
RPM PULSE
SWEAT
CN7
C5 C3
CN1
FAN LOUVER
IN
OUT
MOTOR RPM SIGNAL
THERMISTOR
MOTOR
GRAY
(B)
SSR
R6
D4
1
1
8
25 7
2
7
13
11
51 1
31
1
14
5
8
19
52 64
33
16 9
8
1
IC4
D2
D1 CN2
BCN1 (TRANSFORMER)
L
C1 NR
FAN MOTOR
CAPACITOR
(D)
CNR1
CNR2
VALVE
PURPLE
ORANGE
OUT DOOR
FAN MOTOR(F)
(E) 2
COIL
(C1)
(A1)
BLUE
(FAN MOTOR CAPACITOR)
D3
15
511
11
1
1
6
3
35
JP38
JP39
IC1
POWER ON
FREEZE A
FREEZE B
DE.FAN A
DE.FAN B
JP8
JP11
JP13
JP14
R7
R23
R24
JP50
JP33
JP4
JP5
JP7
R19
JP10
C19
C16
R4
Q3
Q2
R22
JP12
JP51
BCN2 JP35
JP41
JP40
R38
R37 R33
JP1
PREHEAT
JP34
C14
C18
JP37
JP36
IC6
C17
FPWBFA134JBK0
FPWBFA013JBK0
FSGY-A141JBK0
31
Q1
C6
C10
R30 R18
R17 C11
R5
20
11 3
5
R14
R13
D7 D8
GND 12V
GND
5V
12V
3
DIP DIP

AY/AE-A079E
AY/AE-A099E
8
Pin Terminal Input
No. Name Output Function
33 P27 IN MODEL 4
34 P26 IN MODEL 3
35 P25 IN MODEL 2
36 P24 IN MODEL 1
37 P23 IN SWITCH AUX.
38 P22 IN SWITCH TEST RUN
39 P21 IN –
40 P20 IN POWER ON
41 KI IN WIRELESS SIGNAL
42 P17 OUT LED OPERATION
43 P16 OUT LED TIMER
44 P15 OUT –
45 P14 OUT –
46 P13 OUT (VALVE COIL)
47 P12 OUT (OUT DOOR FAN)
48 P11 OUT RY1
49 P10 OUT SSR
50 P07 OUT LOUVER MOTOR
51 P06 OUT LOUVER MOTOR
52 P05 OUT LOUVER MOTOR
53 P04 OUT LOUVER MOTOR
54 P03 OUT –
55 P02 OUT –
56 P01 OUT –
57 P00 OUT –
58 GND IN 0V
59 VDD IN 5V
60 VR IN 5V
61 P57 IN (CURRENT LEVEL)
62 P56 IN TH1
63 P55 IN TH2
64 P54 IN MODEL A
Microcomputer (IC1)
The microcomputer is a CMOS, one chip, 8-bit microcomputer.
Microcomputer port allocation is as follows.
Pin Terminal Input
No. Name Output Function
1 P53 IN MODEL B
2 P52 IN FAN H
3 P51 IN FAN M
4 P50 IN FAN L
5 P33 IN WIRELESS
6 P32 IN PREHEAT
7 P31 IN PRM PLUSE
8 P30 IN SWEAT
9 AGND IN 0V
10 CK2 IN OSILLATION
11 CK1 IN OSILLATION
12 RESET IN RESET
13 F OUT BUZZER
14 R46 IN DEICE A
15 R45 IN DEICE B
16 R44 IN COMP. OFF WIDTH
17 R43 IN DEHUM. FAN OFF
18 R42 IN TEST 1
19 R41 IN –
20 R40 IN –
21 KH IN PRM SIGNAL
22 P66 IN –
23 P65 IN –
24 P64 IN –
25 P63 IN AC CLOCK
26 GND IN 0V
27 P62 IN –
28 P61 OUT EEPROM CLOCK
29 P60 IN EEPROM DATA
30 OSC IN –
31 OSC OUT –
32 TEST IN –

AY/AE-A079E
AY/AE-A099E
9
FUNCTIONS
1. Temperature control characteristic
1-1 COOL operation
In the “COOL” mode, the thermostat circuit is
controlled by four thermostat lines (C1 thru C4).
1-3 HEAT operation
In the “HEAT” mode, the thermostat circuit
is controlled by six thermostat lines (H01 thru
H4).
Figure Y-1
1-2 DRY operation
In the “DRY” mode, the thermostat circuit is
controlledbythreethermostatlines(D1thruD3).
Figure Y-3
2. Operation modes
2-1 COOL operation
Thecompressorturnsonoroff,atthethermostat
lines C3 and C4. The outdoor fan motor is also
controlled with the compressor.
Figure Y-4
Figure Y-2
Preset temperature (˚C)
H4
H3
H2
H1
H02
H01
17
19
21
22
24
26
31
33
35
36
38
40
18 32
Room temperature(˚C)
Room temperature
Preset temperature
Room 
temperature
transition
C3
C4
States 1 & 3 : Compressor ON
State 2 : Compressor OFF
1
2
3
18 32
C1
C2
C3
C4
17.5
18.5
19.5
20.5
31.5
32.5
33.5
34.5
Preset temperature (˚C)
Room temperature (˚C)
Room temperature(˚C)
Preset temperature (˚C)
18 32
D1
D2
D3
17.5
18.5
19.5
31.5
32.5
33.5

AY/AE-A079E
AY/AE-A099E
10
Figure Y-6
2-4 Fan only operation
The indoor fan motor always turns on.
3. Fan speed
Fan speeds are given by the indoor fan motor, "H",
“M”, “L”, “UL” and "D" which are available in the
following operation mode.
Table Y-2
FAN Switch HEAT COOL FAN ONLY
HIGH H M M
LOW M L L
SOFT L UL UL
2-3 Heat operation
Thecompressorturnsonoroff,atState 2 ,turns
on continuously at State 1 & 3 .
Figure Y-5
Table Y-1
Compressor Fan Speed
Cooling zone ON “UL”
Dehumidifying ON “D”
zone
Circulating OFF “D” or OFF
zone
2-2 DRY operation
On the switch on, the compressor always starts
to operate for 2 minutes with fan speed “D”
(slower than “UL”).
Themicrocomputerreadstheroom temperature
2 minutes after this first compressor operation.
This room temperature is set as the preset
temperature automatically.
The preset temperature ranges from 18˚C to
32˚C.Whentheroomtemperatureisbelow18˚C,
thepresettemperatureis set to 18˚C, andwhen
the room temperature is over 32˚C, the preset
temperature is set to 32˚C.
Dryoperationisdividedintothreezones(Cooling
zone,DehumidifyingzoneandCirculating zone)
by thermostat lines (D1 to D3), and the
compressor and the fan motor are controlled in
each zone as shown in Table Y-1.
Room temperature
Preset temperature
Room 
temperature
transition
D3
D2
D1
States 1 & 5 : Cooling zone
States 2 & 4 : Dehumidifying zone
States 3 : Circulating zone
3
4
5
1
2
Room temperature
Preset temperature
Room
temperature
transition
States 1 & 3 : Compressor ON
States 2 : Compressor OFF/(ON)
(Hot-keep function)
H1
H2
3
1
2