AY/AE-A079E AY/AE-A099E 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 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. OUTDOOR UNIT MODELS
Transcript
AY/AE-A079EAY/AE-A099E
1
PageSPECIFICATIONS ........................................................................................................................................... 2EXTERNAL DIMENSIONS............................................................................................................................... 3WIRING DIAGRAMS ....................................................................................................................................... 4ELECTRICAL PARTS ...................................................................................................................................... 5MICROCOMPUTER CONTROL SYSTEM...................................................................................................... 8FUNCTIONS ................................................................................................................................................... 9TROUBLESHOOTING OF THE CONTROL CIRCUIT .................................................................................. 17REFRIGERATION CYCLE ........................................................................................................................... 21PERFORMANCE CURVES .......................................................................................................................... 23REFRIGERANT PIPE AINSTALLATION WORKS ......................................................................................... 24DISASSEMBLING PROCEDURE ................................................................................................................. 25REPLACEMENT PARTS LIST ....................................................................................................................... 29
TABLE OF CONTENTS
SERVICE MANUALS2915AYA099E/
SHARP CORPORATION
SPLIT SYSTEMROOM AIR CONDITIONERS
INDOOR UNIT
AY-A079EAY-A099E
AE-A079EAE-A099E
In the interests of user-safety (Required by safety regulations in somecountries) the set should be restored to its original condition and onlyparts identical to those specified should be used.
OUTDOOR UNIT
MODELS
AY/AE-A079EAY/AE-A099E
2
SPECIFICATIONS
ITEMS INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT
Note: The condition of star ( ) marked item are ‘IEC 378’.
AY/AE-A079EAY/AE-A099E
3
270
790155
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
430720775
14355
245
535
278
236228
20˚
58
AY/AE-A079EAY/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 6 CN5
CN3
CN101
BCN1CN2
BCN2CN201
RECEIVER & LED UNIT
SWITCH UNIT
THERMAL FUSE
TRANSFORMER
CONTROL BOARD UNIT 2
WH WH
RERE
FAN MOTOR CAPACITOR 400V 1µF
FAN MOTOR
R.P.M SIGNAL
BL
BL GR
RE
CN6
CN7
CN4CN1
SSR
RY2RY3
(B)(A)
(F)
(E)
NR VARISTOR
RYCONTROL BOARD UNIT 1
OUT
C.T.
INBK
OR
PU
BL250V
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
LG(Y)
G(Y)G(Y)
N
1
2
3
UNIT
TO
UNI
T CO
RD
BL
BR
BLBK BL BR GR
G(Y)
RE WH OR PU
: BLACK : BLUE : BROWN : GRAY : GREEN–YELLOW
: RED : WHITE : ORANGE : PURPLE
N5 7 1 2
1
2
3
5 3 1
I N D O O R U N I TT E R M I N A L B O A R D 2
T E R M I N A L B O R A D 1
UN
IT T
O U
NIT
CO
RD
O U T D O O R U N I T T E R M I N A L B O A R D
C O N D E N S E R
T H E R M A L F U S E
F A N M O T O R
V A L V E C O I L
F A N M O T O R C A P A C I T O R 4 0 0 V 1 . 5 µ F
C O M P R E S S O R M O T O R
M O T O R P R O T E C T O R
R U N N I N G C A P A C I T O R 3 7 0 V 2 5 µ F
B K
B K
W HR E
R
B LR E
B L
B L
B K
B L
R E
R E
G ( Y )G ( Y )
C
S
I
2
3
N
I
2
3
N
N
L
B K B L G ( Y ) R E W H
: B L A C K : B L U E : G R E E N - Y E L L O W : R E D : W H I T E
AY/AE-A079EAY/AE-A099E
5
ELECTRICAL PARTS
For Model AY-A079E and AE-A079EDESCRIPTION MODEL REMARKS SITECompressor 2PS134D5AA01 220/240V, 50Hz, 650W AEIndoor fan motor ML-A411 220/240V, 50Hz AYOutdoor fan motor ML-A592 220/240V, 50Hz AEIndoor fan motor capacitor – 400V, 1µF AYOutdoor fan motor capacitor – 400V, 1.5µF AERunning capacitor – 370V, 25µF AETransformer – Primary; AC 220V,50Hz AY
For Model AY-A099E and AE-A099EDESCRIPTION MODEL REMARKS SITECompressor RH174VHET 220/240V, 50Hz, 800W AEIndoor fan motor ML-A411 220/240V, 50Hz AYOutdoor fan motor ML-A592 220/240V, 50Hz AEIndoor fan motor capacitor – 400V, 1µF AYOutdoor fan motor capacitor – 400V, 1.5µF AERunning capacitor – 370V, 25µF AETransformer – Primary; AC 220V, 50Hz AY
F A N M O T O R C A P A C I T O R 4 0 0 V 1 . 5 µ F
C O M P R E S S O R M O T O R
M O T O R P R O T E C T O R
R U N N I N G C A P A C I T O R 3 7 0 V 2 5 µ F
B K
B K
W HR E
R
B LR E
B L
B L
B K
B L
R E
R E
G ( Y )G ( Y )
C
S
I
2
3
N
I
2
3
N
N
L
B K B L G ( Y ) R E W H
: B L A C K : B L U E : G R E E N - Y E L L O W : R E D : W H I T E
AY/AE-A079EAY/AE-A099E
6
Fig
ure
L-1.
Ele
ctro
nic
Con
trol
C
ircui
t D
iagr
am f
or A
Y-A
079E
and
AY
-A09
9E
+ –
+ – + –
+ –
+ –
+ –
+ –
19P
41
18P
42
17P
43
16P
44
15P
45
14P
46
13F
12R
ES
ET
33P
27
34P
26
35P
25
36P
24
37P
23
38P
22
39P
21
40P
20
41K
1
42P
17
43P
16
44P
15
45P
14
46P
13
47P
12
48P
11
49P
10
50P
07
51P
06
11C
K1
SM
8313
IC1
10C
K2
9A
GN
D
8P
30
7P
31
6P
32
5P
33
4P
50
3P
51
2P
52
1P
53
32 TEST 52P05
53P04
54P03
55P02
56P01
57P00
58GND
59VDD
60VR
61P57
62P56
63P55
64P54
31
30 OCSIN
OCSOUT
29 P60
28 P61
27 P62
26 GND
25 P63
24 P64
23 P65
22 P66
21 KH
20 P40
IC3
IC2
IC5
RP
M
4 3
3 2 1
3 2 1
4
15
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
73
C6
10
0µ10
v
C5
0.
1µ50
v
C4
47
µ25
v
C3
0.
22µ
50v
C16
0.
1µ50
vC
14
0.01
µ16
v
C14
10
00P
50
v
C15
0.
1µ
50vC
19
0.01
µ50
v
C21
10
00P
50
v
C7
0.1µ
50v
C23
10
00P
50
v
C17
10
00P
50
v
C13
10
00P
50
v
C8
10
µ10
v
(C10
2)
0.1µ
25v
C101
33
µ10
v
C11
10
µ16
v
C10
10
µ16
v
C22
10
00P
50
v
C2
22
00µ
35v
C1
0.
1µ25
0vA
CN
R
R2
22
k
R30
10
k
R22
1k
R4
6.
8k
R7
3.
3k
R23
33
k
R19
10
k
R18
15
kF
R17
15
kF
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
68
0
NC
NC
NC
NC
NC
NC
NC
R3
22
k
R6
47
0
1/2w
RY
1R
Y3
RY
2D
5
OU
T
5V12
V
OU
T
7812
D1
D3
D4
D2
CD
AB
1311
SS
RS20
1D01
L
FU
SE
CT
2.5A
250
V
CN
R3
C12
0.0
1µ 2
50vA
C
FA
N M
OT
OR
C
AP
AC
ITO
R
TH
ER
MA
L P
RO
TE
CT
OR
A
INO
UT
RY
1
E
RY
2
CN
R1
CN
R2F
RY
3
PO
WE
R
SU
PP
LY
TE
RM
INA
L B
OA
RD
3P
GR
EE
N/Y
ELL
OW
EA
RT
H L
INE
NE
UT
RA
L LI
NE
CO
MP
RE
SS
OR
VA
LVE
CO
IL
OU
T D
OO
R
UN
IT
FA
N M
OT
OR
BC
N2
BC
N1
CN
2
CN
2
Q3
3
12
CN
112
V
TR
12VQ
22
13
IC4
9
8
12V
BC
N1
SS
R
CN
101
CN
201
CN
7
CN
6
PH
OT
O D
ET
EC
TO
R U
NIT
AU
X.
(TE
ST
RU
N)
(YE
LLO
W)
LED
102
(RE
D)
LED
101
2 3
BC
N2
CN
3
CN
4
BC
N1
BC
N2
LOU
VE
R M
OT
OR
FU
NC
TIO
N12
H /
24H
IC1
PIN
NO
.19
(P
41)
SY
MB
OL
JP10
AY
-A07
9EX
NO
NE
DE
ICE
B
DE
ICE
A
15
(P45
)
JP5
14
(P46
)
JP4
SW
EA
T
ON
/OF
F
8 (P
30)
JP6
D. F
AN
OFF
OFF
/ON
17
(P43
)
JP9
X N
ON
E
OFF
WID
EH
3/5m
in.
16
(P44
)
JP7
X N
ON
EX
NO
NE
X N
ON
E
WIR
ELE
SS
C
HA
NG
/ N
OR
MA
L
5 (P
33)
JP2
X N
ON
EX
NO
NE
NO
TE
:
1.: T
ES
T P
OIN
T
5V
BC
N2
BC
N1
D9
5V
D8�
5V
5V 5V
5V
5V5V
5V
5V
5V
5V
12V
TE
ST
D7
R14
2k
(F)
R13
10
k(F
)R
16
13.7
k(F
)C
9 16
V
220µ
C20
50
V
1000
P
TH
1
RO
OM
TE
MP
.
15k(
25˚C
)
TH
2
PIP
E T
EM
P.
15k(
25˚C
)
BZ
5V
5V
10V
NC
NC
NC
NC
NC
NC
1 2 3 4
8 7IC
66 5
JP14
DE
. FA
N B
12H
/24H
SW
EA
T
PR
EH
EA
T
FA
N L
FA
N M
FA
N H
MO
DE
L B
MO
DE
L A
WIR
ELE
SS
RPM
PLU
SE
DE
ICE
B
DE
ICE
A
D. F
AN
OFF
OFF
WID
EH
DE
. FA
N A
FR
EE
ZE
B
FR
EE
ZE
A
PO
WE
R O
N
JP13
JP12
JP11
JP9
JP7
JP5
JP4
Q1
OC
S
8MH
z
3
3
3
2
11 1
2
2
JP10
JP6
JP3
JP1
JP2
R10
R9
R8
R12
R11
JP8
CN
5
ININ
TH
ER
MA
L F
US
E
GN
DG
ND
2. N
ot s
peci
fied
is 1
/5w
US
E
RP
M
PLU
SE
1/
3 7 (P
31)
JP3
US
E
PR
EH
EA
T
OF
F/O
N
6 (P
32)
JP1
FA
N L
4 (P
50)
R10
140k
(F)
FA
N M 3
(P51
)
R9
FA
N H
2 (P
52)
R8
22k(
F)
24.9
k(F
)
MO
DE
L B 1
(P53
)
R12
133k
(F)
MO
DE
L A 64
(P
54)
R11
X N
ON
E
DE
. FA
N
B 33
(P27
)
JP14
X N
ON
E
DE
. FA
N
A 34
(P26
)
JP13
X N
ON
E
FR
EE
ZE
B 35
(P
25)
JP12
X N
ON
E
FR
EE
ZE
A 36
(P
24)
JP11
X N
ON
E
PO
WE
R O
N
ON
/OFF
40
(P20
)
JP8
US
E
AY
-A09
9EX
NO
NE
X N
ON
EX
NO
NE
X N
ON
EU
SE
US
EU
SE
US
E14
0k(F
)15
k(F
)1.
87k(
F)
15k(
F)
107k
(F)
X N
ON
EX
NO
NE
X N
ON
EX
NO
NE
X N
ON
EU
SE
+ –
R15
2.
7k(F
)
AY/AE-A079EAY/AE-A099E
7
Figure L-2. Printed Wiring Board
The
rmis
tor
CN
7
CN
6
CN
101
CN
201
Indo
or fa
n m
otor
(R.P
.M. S
igna
l)In
door
fan
mot
or
Ter
min
al b
oard
L
Ter
min
al b
oard
" 1
"
Tra
nsfo
rmer
BC
N2
BC
N1
TR
AN
SF
OR
ME
R
Louv
er m
otor
Fan
mot
or c
apac
itor
Fan
mot
or c
apac
itor
250V
2.5
A
FUSE
IN OUT
RY
1
RY
3
RY
2
DP
WB
FAJB
K0(
P)
QP
WB
FB
252J
BE
0(P
)R
3
R26 R41
R40
C23
C13
R28IC2 R29
JP46
D9
CN6
C22
C21C20
R20R15R16R21
R39
R25
OUT
IN
81
11 3
3
QPWBFB252JBE0(C)
DPWBFA JBK0(C)R
2
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
SW20
1
TEST
RU
NAU
X.
SW20
2
CN101CN201
LED1
01LE
D102
RECE
IVER
UNI
T
QPW
BFB1
24JB
E0
QPW
BFA6
52JB
E0
OPE
RATI
ON
(RED
)TI
MER
(Y
ELLO
W)
JP3
JP2
JP6
R36
R34
R32
R31
MO
DEL
A
MO
DEL
B
FAN
H
FAN
M FAN
L
WIR
ELES
SL
D. F
AN O
FF
12H / 24H
OFF WIDEH
DEICE B
DEICE A
RPM
PUL
SE
SWEA
T
CN7
C5
C3
CN1
FAN
LOUV
ER
IN
OUT
MOT
OR
RPM
SIG
NAL
THER
MIS
TOR
MOT
OR
GRA
Y
(B)
SSR
R6
D4
1
1 8
2572
7
13
11
511
31 1
145
8
19
52
64
33
16
9
8
1IC
4D2
D1
CN2
BCN1(TRANSFORMER)
L
C1NR
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
51
1
11 1
16
3
35
JP38JP39
IC1
POWER ON
FREEZE A
FREEZE B
DE.FAN A
DE.FAN B
JP8
JP11
JP13
JP14
R7
R23
R24
JP50
JP33
JP4JP5JP7
R19JP10
C19C16
R4
Q3Q2
R22
JP12
JP51
BCN2 JP35
JP41
JP40
R38R37
R33
JP1PREHEAT
JP34
C14
C18
JP37
JP36
IC6
C17
FPW
BFA1
34JB
K0
FPW
BFA0
13JB
K0
FSGY-A141JBK0
3 1Q1
C6
C10
R30
R18
R17
C11
R5
20
113 5
R14
R13
D7
D8
GND
12V
GND
5V
12V
3
DIP
DIP
AY/AE-A079EAY/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-A079EAY/AE-A099E
9
FUNCTIONS
1. Temperature control characteristic1-1 COOL operation
In the “COOL” mode, the thermostat circuit iscontrolled by four thermostat lines (C1 thru C4).
1-3 HEAT operationIn the “HEAT” mode, the thermostat circuitis controlled by six thermostat lines (H01 thruH4).
Figure Y-1
1-2 DRY operationIn the “DRY” mode, the thermostat circuit iscontrolled by three thermostat lines (D1 thru D3).
Figure Y-3
2. Operation modes2-1 COOL operation
The compressor turns on or off, at the thermostatlines C3 and C4. The outdoor fan motor is alsocontrolled with the compressor.
Figure Y-4
Figure Y-2
Preset temperature (˚C)
H4H3H2H1H02H01
17
1921222426
313335363840
18 32
Roo
m te
mpe
ratu
re(˚
C)
Roo
m te
mpe
ratu
re
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)
Roo
m te
mpe
ratu
re (
˚C)
Roo
m te
mpe
ratu
re(˚
C)
Preset temperature (˚C)18 32
D1
D2
D3
17.5
18.5
19.5
31.5
32.5
33.5
AY/AE-A079EAY/AE-A099E
10
Figure Y-6
2-4 Fan only operationThe indoor fan motor always turns on.
3. Fan speedFan speeds are given by the indoor fan motor, "H",“M”, “L”, “UL” and "D" which are available in thefollowing 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 operationThe compressor turns on or off, at State 2 , turnson 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 OFFzone
2-2 DRY operation On the switch on, the compressor always startsto operate for 2 minutes with fan speed “D”(slower than “UL”).The microcomputer reads the room temperature2 minutes after this first compressor operation.This room temperature is set as the presettemperature automatically.The preset temperature ranges from 18˚C to32˚C. When the room temperature is below 18˚C,the preset temperature is set to 18˚C, and whenthe room temperature is over 32˚C, the presettemperature is set to 32˚C.Dry operation is divided into three zones (Coolingzone, Dehumidifying zone and Circulating zone)by thermostat lines (D1 to D3), and thecompressor and the fan motor are controlled ineach zone as shown in Table Y-1.
Roo
m te
mpe
ratu
re
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
Roo
m te
mpe
ratu
re
Preset temperature
Room temperature transition
States 1 & 3 : Compressor ON States 2 : Compressor OFF/(ON) (Hot-keep function)
H1
H2
31
2
AY/AE-A079EAY/AE-A099E
11
Figure Y-9
Table Y-3
Figure Y-8
Figure Y-7
5. Preheat air flowThis function is intended to prevent cold air from beingdischarged when the heating operation starts or whendefrosting.When the indoor pipe temperature is below 29˚C at thebegining of the heat operation or after defrosting, theindoor fan motor stays.When the indoor pipe temperature gets higher than29˚C, the fan motor is turned on at speed “UL” aftercompensation of starting.When the indoor pipe temperature exceeds 35˚C, thespecified fan speed is restored. When the indoor pipetemperature falls below 30˚C, the fan speed shiftsdown to “UL”. And, when the indoor pipe temperaturefalls below 24˚C, the fan motor turns off. Then, over29˚C , it turns on again at speed “UL”.
4. Hot-KeepThis function automatically controls the on-off operationof the indoor fan motor in accordance with the on-offoperation of the compressor during the heatingoperation, thereby preventing the air conditioner fromdelivering a cold air when the compressor is off.When the room temperature exceeds the thermostatline “H1”, the compressor is turned off, and the indoorfan motor is turned off after rotating at “UL” for 30seconds.3 minutes after turning off the compressor, thecompressor is turned on for 3 minutes. (belowthermostat line H01). While over H01, the compressoris off.At 10 seconds after turning on the compressor, theindoor fan motor is turned on.The next compressor OFF time is for 3, 8 or more than8 minutes according to the room temperature (the timeincreases with a rise of room temperature) when 3minutes elapse after turning on the compessor.
6. Overheating protection systemWhen overloading occurs during the heating operation,this system controls the outdoor fan motor according tothe indoor pipe temperature to prevent the overloadingof the compressor and restrain the rise in high pressure.When the indoor pipe temperature exceeds U1˚C, theoutdoor fan motor is turned off, and when the indoorpipe temperature falls U2˚C, the outdoor fan motorturns on.If 3 minutes elapse after turning off outdoor fan motor,the outdoor fan motor is turned on, when the indoorpipe falls U1˚C,
Compressor ON
OFF
Indoorfan motor
30sec.
time
ULON
OFF
3 min.(Notes)3 min.
10sec.
UL
30sec.
10sec.Thermo off
3 or 8 or 15min.
(Notes)
Notes: Compressor is off when compressor OFF time is 15 minutes.
Pip
e te
mpe
ratu
re(˚
C)
24
2930
35
OFFUL UL ULOFFPreset
Fan speed
OFF OFF
ON
ONU1
U2
U1
U2
Within 3 minutes Over 3 minutes
MODELS
AY-A099E
AY-A079E
M L UL
U1
U2
U1
U2
53˚C
Fan Speed
Line
49˚C
53˚C
49˚C
53˚C
49˚C
54˚C
50˚C
53˚C
49˚C
54˚C
50˚C
AY/AE-A079EAY/AE-A099E
12
7. Current controlThis system, in order to prevent overcurrent duringheating operation, controls the outdoor fan motor andchanges the indoor fan motor speed by detecting totalcurrent.When the current exceeds P2, the outdoor fan motor isautomatically turned off, and when the current fallsbelow P4, the outdoor fan motor is turned on.When the current exceeds P3 and the indoor fan speedshifts down because of cold air (5. Preheat air flow), thechanges in the indoor fan speed shifts up as follows,from "off" to "UL", or from "UL" to "L". And when thecurrent falls bellow P5, the indoor fan speed shift up iscanceled.
Figure Y-10
8. Freeze preventiveWhen the indoor pipe temperature falls below -1˚Cduring cool operation or dry operation, the compressoris turned off.
9. DefrostThe defrost timer (integrating the operation time ofcompressor) counts time with microcomputer duringheat operation.Frost of outdoor pipe is estimated by indoor pipetemperature (TH2), room temperature (TH1), indoorfan speed and operation state of compressor.In the defrost operation, first the compressor is turnedoff, the fan speed is set to “UL” and the outdoor fanmotor is turned off.30 seconds later the indoor fan motor is turned off, 50seconds later the reverse valve is turned off, and 60seconds later the compressor is turned on.In the end of defrosting, the compressor is turned off,the outdoor fan motor is turned on, 50 seconds later thereverse valve is turned on, 60 seconds later thecompressor is turned on, starting heat operation.At this time, the indoor fan motor is turned off or the fanspeed is set to “UL” if preheat air flow function iseffective.
Figure Y-11
Figure Y-12
10. Delayed operation of the reverse valveWhen the heat operation is shut down or the operatingmode is switched from heat to cool or dry, or vice versa,the reverse valve is switched after 3 minutes.
11. Test runIf the “TEST RUN” button in the unit is pushed duringsuspension of operation, cool test operation starts. Atthis time, the fan speed is set to “AUTO”.If this button is pushed during operation, the testoperation starts in current operation mode. Theoperation LED (red) flickers during test run.In cool and heat mode continuous compressor onoperation is performed. In dry mode the operation is indehumidifying zone. In fan only mode the indoor fanmotor runs continusly.
12. Timer12-1 24-HOUR PROGRAMMABLE ON/OFF TIMER
ON-TIMER or OFF-TIMER can be independentlyprogrammed. When the unit operates during onehour after the OFF-time is set, thermostat settingis automatically shifted (+1˚C in cool operationand dry operation, -3˚C in heat operation, 16˚C -32˚C).When the ON-timer is set in heat operation andcool operation, operation starts before 0 to 30minutes(depends on the room temperature) sothat preset temperature is obtaind at set time.
12-2 ONE-HOUR TIMERWhen ONE-HOUR timer is set, the unit turns offautomatically after one hour. The one hour timeroperation has priority over other time operation,such as the TIMER ON and TIMER OFF. If theONE-HOUR TIMER button is pressed againduring operation, the unit will operate additionallyfor another one hour.
Outdoor Fan motor OFF
Indoor Fan motor Shift UP
Compressor OFF
Time
Inpu
t cur
rent
Current transition
P1 5.3A 6.9A
P2 4.5A 6.1A
P3 4.0A 5.4A
P4 3.4A 4.6A
P5 2.6A 4.2A
AY- A079E
AY- A099E
Defrost start
Compressor
ReverseValve
OutdoorFan Motor
IndoorFan Motor
Preheat AirFlow Control
30sec.
MAX. 9min.
50sec. 10sec.
60sec.
ON
OFF
ON
OFF
ON
OFF
ON
OFF
50sec. 10sec.
UL
Switch ON
Heating Heating Heating
Min. 40min.
Max. 11min.
Min. 30min.
Max. 11min.
DefrostDefrost
AY/AE-A079EAY/AE-A099E
13
13. Automatic air conditioningWhen automatic air conditioning is selected, theoperation mode and preset temperature are setautomatically according to the room temperature onstarting operation.
Table Y-4
15. Outputs in each operation mode
Table Y-5
16. Power on startIf the connecting wire "POWER ON" (JP8) is cut on thePWB ass'y, when the power is supplied by turning ona circuit breaker, the air conditioner automaticallystarts of operation in "AUTO".(Refer to Figure L-2. Printed Wiring Board.)
17. AUTO RESTARTPower failure occurs during operation, the unit willretart in the same operation mode as before afterpower recovery.(Refer to Figure L-2. Printed Wiring Board.)
18.Test mode18-1 TEST 1 (For control circuit operation checking)
Make terminals 1 and 2 of connector CN4 short-circuited and supply the power.Hereby the timer's period becomes shortened.In this test mode, the control times are shortendas follows.
The operation LED flicker's period not
in Test run shortenedThe protector timerThe defrost timer
Other controls; 1/60 (ex.; 3 min. to 3 sec.)
18-2 TEST 2 (For output of each operation checking)Keep pushing both the buttons, "AUX." and"TEST RUN", and supply the power, the systemwill go to the test 2 mode. In this mode, theoutput of operation is switched by pushing the"TEST RUN" button in the unit or the "OI" buttonin the remote controller. Use the "AUX." buttonto back to step 1.Normal outputs are shown in Table Y-6 and Y-7.
14. Automatic fan speedWhen the automatic fan speed is selected in cool orheat operation, the fan speed is automatically changedby the thermostat lines C1 to C3 in cool operation, andH1 to H4 in heat operation.
States 1 & 7 : "H" States 2 & 6 : "M" States 3 & 5 : "L" States 4 : "L"/"UL"/OFF H1
H2
1
H4
H3
6
5
4
7
2
3
AY/AE-A079EAY/AE-A099E
14
19.Diagnosis procedureWhen indoor fan motor is out of order or compressor lock occurs, the compressor, inddor fan motor, outdoor fanmotor, and louver are all stopped and the operation LED(red) turns on or off syncronously with the timimg of thetimer LED.When the thermistor for room temperature or pipe temperature is open or short state, the operation LED turns onor off syncrnoously with the timing of the timer LED by pushing continously for more than three seconds both"TEST" button and "AUX." button.
Timing chart of Timer LED and Operation LED of DIAGNOSIS PROCEDURE.When "OI" button the remote controller or "AUX." button in the unit is pushed, the unit is free from DIAGNOSISPROCEDURE.
Indoor fan motor
Comp.-lock
Thermistor short state
Thermistor open state
Timer LED
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Operation LED
Operation LED
Operation LED
Operation LED
1sec. 1sec.
4sec.
AY/AE-A079EAY/AE-A099E
15
Table Y-6 [AY-A079E]
Step
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Output for outdoor unit Lamps
RED YELLOW
Indoor Fan motor
Louver
OFF
Compressor
Reverse Valve
Outdoor Fan Motor
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF OPEN
ON D OFF Flickering
OFF H OFF
ON ON L CLOSE
ON OFF D OFF
OFF UL OFF
OFF OFF H OFF
OFF OFF M OFF
OFF OFF L OFF
OFF ON OFF OFF
OFF OFF OFF OFF
ON OFF OFF OFF
OFF OFF OFF OFF
ON ON OFF OFF
ON ON OFF OFF
ON OFF OFF OFF
OFF OFF OFF OFF
OFF OFF OFF OFF
OFF OFF OFF OFF
ON OFF OFF OFF
OFF ON OFF OFF
ON ON OFF OFF
23 OFF OFF OFF OFF OFF
(Back to step 1)
ON
1 2
3
4
1
2
3
: 7˚C Room temp. 42˚C ON : 7˚C (Room temp.) or (Room temp.) 42˚C OFF
: –2˚C Pipe temp. 42˚C ON : –2˚C (Pipe temp.) or (Pipe temp.) 42˚C OFF
: 0.1V (P57 input voltage) 0.45V ON : 0.1V (P57 input voltage) or (P57 input voltage 0.45V) OFF
4 : When Power on start is effective, Timer LED(yellow) is ON.
AY/AE-A079EAY/AE-A099E
16
Table Y-7[AY-A099E]
Step
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Output for outdoor unit Lamps
RED YELLOW
Indoor Fan motor
Louver
OFF
Compressor
Reverse Valve
Outdoor Fan Motor
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF OPEN
ON D OFF Flickering
OFF H OFF
ON ON L CLOSE
ON OFF D OFF
OFF UL OFF
OFF OFF H OFF
OFF OFF M OFF
OFF OFF L OFF
OFF ON OFF OFF
OFF OFF OFF OFF
ON OFF OFF OFF
ON OFF OFF OFF
ON ON OFF OFF
ON OFF OFF OFF
ON OFF OFF OFF
OFF OFF OFF OFF
ON OFF OFF OFF
ON OFF OFF OFF
OFF ON OFF OFF
ON OFF OFF OFF
OFF ON OFF OFF
23 OFF OFF OFF OFF OFF
(Back to step 1)
ON
1 2
3
1
2
3
: 7˚C Room temp. 42˚C ON : 7˚C (Room temp.) or (Room temp.) 42˚C OFF
: –2˚C Pipe temp. 42˚C ON : –2˚C (Pipe temp.) or (Pipe temp.) 42˚C OFF
: 0.1V (P57 input voltage) 0.45V ON : 0.1V (P57 input voltage) or (P57 input voltage 0.45V) OFF
4 : When Power on start is effective, Timer LED(yellow) is ON.
AY/AE-A079EAY/AE-A099E
17
TROUBLESHOOTING GUIDE OF CONTROL CIRCUIT
measure the secondary voltage of transformer.
YES
NO
YES
NO
The machine does not function at all with remote controller and switches on the indoor unit.
Using a tester, measure the voltage between terminal " 1 " and " 2 " of connector CN2 on PWB ass'y.
Is the measured value approx. 16.0 Vac ?
Replace the PWB with a new one.
Is the 2.5A fuse down ?
Replace the fuse and varistor with new ones.
Replace the ftransformer with a new one.
AY/AE-A079EAY/AE-A099E
18
YES
NO
NO
YES
The machine does not function with remote controller
Push butt "OI" on on the wireless remote controller.
Is transmitting indicator of the remote
controller active ?
Is indicator lamp of indoor unit proper ?
Replace the PWB with a new one.
Does beep sound from the indoor unit ?
Does connector CN101 & CN6 connect
in place ?
Using a tester, measure the voltage between terminals of resistor R15 on the PWB ass'y.
Push the button "OI".
Are batteries of the wireless remote controller
proper ?
Replace the batteries with new ones.
Replace the wireless remote controller.
When the signal is received, does the voltage
change ?
Replace the PWB with a new one.
PWB is normal. Inspect the outdoor unit.
NO
YES
YES
NO
YESReplace the display unit with a new one.
Connect the connector properly.
NO
YES
NO
AY/AE-A079EAY/AE-A099E
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The room is not cooled at all or not cooled. The compressor does not operate.
Measure resistances of TH1 and TH2.
The control circuit is normal. The compressor may be defective. The running capacitor may be defective. Refrigerant may be leaked. The outdoor fan motor may be defective. The outdoor fan motor capacitor may be defective.
Push the button "TEST RUN" on the indoor unit, and wait 3 minutes.
Is the voltage between terminal "N" and
"1" of the terminal board the power supply voltage ?
Are the resistances conformed Fig. 1 ?
Replace the thermistor ass'y with a new one.
NO
YES
YES
NO
Replace the PWB ass'y with a new one.
0
20
40
60
80
100
120
140
160
180
K
0 10 20 30 40˚C-10
CHARACTERISTIC OF TH1 & TH2
Fig. 1
25˚C 15KUsing a tester, measure voltage at
the terminals on the terminal board.
AY/AE-A079EAY/AE-A099E
20
The room is not heated at all or not heated. The compressor does not operate.
The control circuit board is normal. Refrigerant may be leaked. The running capacitor may be defective. The outdoor fan motor may be defective. The outdoor fan motor capacitor may be defective. The compressor may be defective. The thermistor may be defective.
Is the voltage between terminal "N" and
"1" of the terminal board the power supply voltage ?
NO
Replace the PWB ass'y with a new one.
Push the button of "TEST RUN" on the indoor unit, and wait 3 minutes.
Using a tester, measure voltages at the terminals on the terminal board.
Select HEAT MODE with remote controller. And then start operation.
Is the voltage between terminal "N" and
"2" of the terminal board the power supply voltage ?
Is the voltage between terminal "N" and
"3" of the terminal board the power supply voltage ?
YES
YES
YES
NO NO
NO
AY/AE-A079EAY/AE-A099E
21
REFRIGERATION CYCLE
Figure R-1. Refrigeration Cycle for AY-A079E and AY-A099E
Figure R-2. Flow of Refrigerant for AY-A079E and AY-A099E
At Cooling At Heating
Indoor unit
Outdoor unit
Flare coupling
Evaporator
Strainer
Condenser
Accumulator
Compressor
Reverse valve
Check valve
Capillary tube B
Strainer
Capillary tube A
Flare coupling Flare coupling
Flare coupling
1
4 2
3
S
S
AY/AE-A079EAY/AE-A099E
22
Cycle temperature and service port pressure
ISO Cooling and Heatpump condition(at 220V REFRIGERANT PIPE LENGTH 7.5 m)
Dimension of Capillary tube
ISO Cooling and Heatpump condition
O.D. I.D. LCapillary tube ACapillary tube B
MODEL
ø 2.7 ø 1.5ø 1.4
800600ø 2.7
O.D. I.D.AE-A079E AE-A099E
Lø 2.7 ø 1.5
ø 1.5700700ø 2.7
AY-A079E
78˚C 65˚C43˚C 2˚C11˚C 33˚C8˚C 1 ˚C
0.52MPa 1.49MPa
AY-A099E
80˚C 84˚CCooling Heating Cooling Heating
44˚C 1˚C11˚C 35˚C6˚C 3 ˚C
0.47MPa 1.75MPaService port pressure
ModelNO. Condition
1234
Gauge pressure
Indoor side Outdoor sideTemperature (˚C) Temperature (˚C)Relative humididity (%) Relative humididity (%)
27 47 35 4020 37 7 87
CoolingHeating
AY/AE-A079EAY/AE-A099E
23
PERFORMANCE CURVES
Figure P-1. At Cooling for AY-A079E Figure P-2. At Heating for AY-A079E
1.5
2.0
2.5
3.0
3.5
(KW
)
1000
500
15
14
Inpu
t(W
)
13
12
11
10
9
8
7
Outside air temp.(˚C)
Out
let a
ir te
mp.
(˚C
)
3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 4 0
15001.0
2.0
2.5
3.5
4.0
(KW
)
1000
500
50
0
Inpu
t(W
)
Outside air temp.(˚C)
Out
let a
ir te
mp.
(˚C
)
3.0
1.5
45
40
35
30
25
20–10 –8 –6 –4 –2 0 2 4 6 8 10
5100
6800
8500
10200
11900
Coo
ling
capa
city
(B
TU
/h)
3400
13600
Coo
ling
capa
city
(B
TU
/h)
11900
10200
8500
6800
5100
Indoor air temp. : 27˚C
: 47RH%: Hi
Indoor humidityIndoor fan speedPower source : 220V 50Hz
Indoor air temp. : 20˚C: HiIndoor fan speed
Power source : 220V 50Hz
AY/AE-A079EAY/AE-A099E
24
Figure P-3. At Cooling for AY-A099E Figure P-4. At Heating for AY-A099E
REFRIGERANT PIPE INSTALLATION WORKSRefrigerant pipe length and level difference between the indoor and outdoor units.
The shorter refrigerant pipe, the highter the machine capabillity. Keep the pipeline as short as possible.
Indoor air temp. : 27˚C
Indoor humidity : 47RH%Indoor fan speed : Hi
5100
6800
8500
10200
11900
Coo
ling
capa
city
(BT
U/h
)
1000
1.5
2.0
2.5
3.0
3.5
(KW
)
500
15
14
Inpu
t(W
)
13
12
11
10
9
8
7
Outside air temp.(˚C)
Out
let a
ir te
mp.
(˚C
)
3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 4 0
Power source : 50Hz, 220V
Indoor air temp. : 20˚CIndoor fan speed : Hi
6800
5100
3400
8500
10200
11900
13600
Coo
ling
capa
city
(BT
U/h
)1000
4.0
3.5
3.0
2.5
2.0
1.5�
1.0
(KW
)
500
0
Inpu
t(W
)
50
45
40
35
30
25
2-
Outside air temp.(˚C)
Out
let a
ir te
mp.
(˚C
)
- 1 0 - 8 - 6 - 4 - 2 0 2 4 6 8 1 0
Power source : 50Hz, 220V
PIPE SIZEGAS LIQUID3/8" 1/4" 10 m 5 m
STANDARD PERMISSIBLE LENGTH
PERMISSIBLE LEVEL DIFFERENCE
AY/AE-A079EAY/AE-A099E
25
DISASSEMBLING PROCEDURE
FOR INDOOR UNIT MODEL AY-A079E/AY-A099E
CAUTION: DISCONNECT THE UNIT FROM THE POWER SUPPLY BEFORE ANY SERVICING
1. Remove the 2 screw covers in the front panel. 4. Close the open panel softly, and then press " B " and" C " of it securely.Remove the front panel ass'y as to lift up.
3. Pull the open panel at " A " toward you.Remove a fixed screw.
2. Removr 2 fixed screws.
5. Loose a cord clamp screw and take it out.
6. Loose 3 screws on the terminal board and take outthe unit-to-unit cord from it.
A A
BBC
AY/AE-A079EAY/AE-A099E
26
7.Take the thermistor holder from evaporator. 11.Loosen 4 screws fixing control box and take out controlass'y.
8.Take out the thermistor from evaporator.
9.Disconnect fan motor connectors and others.
10.Loose 1 screw for a pipe cover and take it out.Loose the earth screw.
12.Loose a screw fixing drain pan ass'y.(Right side)
13.Loose 2 screws fixing drain pan ass'y.(Left side)
14.Loose a screw fixing drain hose.
AY/AE-A079EAY/AE-A099E
27
19.Loosen 2 screws fixing evaporator.15.When assembling make sure that O-ring is fitted tothe drain hose.
16.Take out the drain pan ass'y.
17.Loose a screw fixing cross flow fan to motor.
20.Take out the fan bearing ass'y.
21.Take out the cross flow fan while slightly lifting theevaporator.
18.Slide the cross fan leftward to depart from the motorshaft and take out fan motor.
O-ring
O-ringDrain hose
(Section)
AY/AE-A079EAY/AE-A099E
28
FOR OUTDOOR UNIT MODEL AE-A079E AND AE-A099E
CAUTION: DISCONNECT THE UNIT FROM THE POWER SUPPLY BEFORE ANY SERVICING
1 Remove the three (3) screws holding the right sideplate and take it out.
2 Remove the three (3) screws holding the left sideplate and take it out.
3 Remove the another screws holding the cabinet andtake it out..
NOTE: Number as shown in followingfigure is the moval order.
Fig. D-1
Left side plate
Condenser
Right side plateCabinet
Fan motor
Propeller fan
Compressor
Fan guard
2
1
AY/AE-A079EAY/AE-A099E
29
REF. NO. PART NO. DESCRIPTION Q'TY CODE
REPLACEMENT PARTS LIST [AY-A079E/AY-A099E]
CABINET AND UNIT PARTS1- 1 CMOT-A273JBK0 Fan motor sub assembly 1 BN1- 2 NFANCA042JBE0 Cross flow fan 1 BC1- 3 CSRA-A444JBK0 Drain pan assembly 1 BK1- 4 MJNTPA040JBFF Louver link 3 AC1- 5 MLOV-A135JBFF Horizontal adjustment louver A (Vertical louver A) 9 AC1- 6 MLOV-A136JBFF Horizontal adjustment louver B (Vertical louver B) 3 AC1- 7 MLOV-A133JBFE Vertical adjustment louver A (Horizontal louver A) 1 AK1- 8 MLOV-A134JBFE Vertical adjustment louver B (Horizontal louver B) 1 AK1- 9 PPACGA002JBE0 O ring 1 AA1-10 RMOT-A050JBE0 Louver motor 1 AY1-11 PGUMMA071JBE0 Motor cushion 1 AN1-12 LHLD-A197JBFP Louver holder 4 AC1-13 PGUMMA086JBE0 Motor cushion 1 AG1-14 PCOV-A190JBE0 Drain cover 1 AE1-15 CHLD-A053JBK0 Bearing assembly 1 AD1-16 LHLD-A187JBFA Tube holder 1 AD1-17 PSHE-A099JBE0 Evaporator sheet 1 AH1-18 LSPR-A006JBE0 Sheet spring for fixing evaporator seat 2 AB1-19 DCHS-A255JBK0 Cabinet assembly 1 AZ1-20 DWAK-A779JBK0 Panel assembly 1 AX1-21 PFILMA077JBEB Air filter 2 AN1-22 HDEC-B020JBEA Display cover 1 AL1-23 HBDG-A059JBEA Badge 1 AF1-24 LHLD-A209JBFA Front panel hinge R 1 AF1-25 MARMPA012JBFA Open panel hinge L 1 AD1-26 MARMPA013JBFA Open panel hinge R 1 AD1-27 LHLD-A208JBFA Front panel hinge L 1 AD1-28 PBOX-A120JBK0 Louver gear assembly 1 AZ1-29 NBRG-A026JBFA Louver bushing 2 AB1-30 PSHE-A098JBE0 Evaporator seal 1 AC1-31 TLABPA175JBR0 Louver seal 1 AB1-32 TSPC-C981JBRA Name label [AY-A079E] 1 AD1-32 TSPC-C955JBRA Name label [AY-A099E] 1 AD1-33 PGUMSA046JBE0 Damper rubber 1 AD1-34 CPNL-A084JBK0 Open panel assembly 1 AV1-35 PFPFPB074JBE0 Thermistor insulation 1 AB1-36 PHOS-A015JBE0 Drain hose 1 AL1-37 LHLD-A204JBF0 Motor holder 1 AE1-38 PSEL-B417JBE0 Aluminum tape 1 AC1-39 PSEL-B418JBE0 Aluminum tape 1 AD1-40 PSEL-B494JBE0 Aluminum tape 1 AD1-41 PSEL-B492JBE0 Aluminum tape 1 AC
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