Sharp AH-X079E User manual

1
AH-X079E/X099E
AY-X079E/X099E
S2912AYX099E/
SPLITTYPE
ROOM AIR CONDITIONERS
Intheinterestsofuser-safety(Requiredbysafetyregulationsinsome
countries) thesetshouldberestoredtoitsoriginalconditionandonly
parts identical to those specified should be used.
SERVICE MANUAL
Page
SPECIFICATIONS ............................................................................................................................................ 2
EXTERNAL DIMENSIONS................................................................................................................................. 4
WIRING DIAGRAMS......................................................................................................................................... 5
ELECTRICAL PARTS ........................................................................................................................................ 7
BLOCK DIAGRAM ............................................................................................................................................. 8
FUNCTIONS .................................................................................................................................................... 14
FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES ............................................................... 21
BREAKDOWN DIAGNOSIS PROCEDURE .................................................................................................... 28
REFRIGERATION CYCLE............................................................................................................................. 25
PERFORMANCE CURVES ............................................................................................................................ 28
DISASSEMBLING PROCEDURE ................................................................................................................... 30
OPTION ........................................................................................................................................................... 39
REPLACEMENT PARTS LIST ......................................................................................................................... 40
TABLE OF CONTENTS
AH-X079E/X099E
AY-X079E/X099E
AU-X079E/X099E
AE-X079E/X099E
MODELS
OUTDOOR UNIT
INDOOR UNIT
SHARP CORPORATION

2
AH-X079E/X099E
AY-X079E/X099E
SPECIFICATIONS
ITEMS INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR
UNIT AH-X079E AU-X079E AH-X099E AU-X099E
Cooling capacity kW 2.1(0.7 - 2.6) 2.6(0.7 - 2.9)
Moisture removal Liters/h 0.8 1.0
Electrical data
Phase – Single
Rated frequency Hz 50
Rated voltage range V 198 to 264
Rated voltage V 220 - 240
Rated current Cool A 3.7 - 3.4 4.9 - 4.5
Rated input Cool W 800 1070
Power factor Cool % 98 - 98 99 - 99
Compressor Type Hermetically sealed rotary type
Model HV166A1-S10DK
Oil charge 450cc (SUNISO 4GSD)
Refrigerant system Evaporator Bare tube type Grooved tube type
Condenser Corrugate Fin and Grooved tube type
Control Capillary tube
Refrigerant volume 630g 680g
Noise level High dB(A) 35 43 36 43
(at cooling) Med. dB(A) 31 – 32 –
Low dB(A) 28 – 28 –
Fan system
Drive Direct drive
Air flow quantity High m3/min. 7.0 23.1 7.2 23.1
(at cooling) Med. m3/min. 6.1 – 6.2 –
Low m3/min. 5.3 – 5.3 –
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, AZ-24H7E; 7m
Drain piping mm O.D ø 18
Others
Safety device Compressor: Thermal protector Compressor: Thermal protector
Fan motors: Thermal fuse
Fuse, Micro computer control
Air filters Polypropylene net (Washable)
Net dimensions Width mm 750 698 750 698
Height mm 270 530 270 530
Depth mm 183 250 183 250
Net weight kg 8 28 8 28
Note: The condition of star (
) marked item are ‘ISO5151’.

3
AH-X079E/X099E
AY-X079E/X099E
ITEMS INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR
UNIT AY-X079E AE-X079E AY-X099E AE-X099E
Cooling capacity kW 2.1(0.7 - 2.6) 2.6(0.7 - 2.9)
Heatpump kW 3.2(0.7 - 3.6) 3.4(0.7 - 4.0)
Heating capacity
Moisture removal Liters/h 0.8 1.0
Electrical data
Phase – Single
Rated frequency Hz 50
Rated voltage range V 198 to 264
Rated voltage V 220 - 240
Rated current Cool A 3.7 - 3.4 4.9 - 4.5
Heat A 5.0 - 4.5 5.5 - 5.0
Rated input Cool W 800 1070
Heat W 1080 1200
Power factor Cool % 98 - 98 99 - 99
Heat % 98 - 98 99 - 99
Compressor Type Hermetically sealed rotary type
Model HV166A1-S10DK
Oil charge 450cc (SUNISO 4GSD)
Refrigerant system Evaporator Bare tube type Grooved tube type
Condenser Corrugate Fin and Grooved tube type
Control Capillary tube
Refrigerant volume 650g 670g
De-lce system Micro computer controled reverse sysetm
Noise level High dB(A) 35 43 36 43
(at cooling) Med. dB(A) 31 – 32 –
Low dB(A) 28 – 28 –
Fan system
Drive Direct drive
Air flow quantity High m3/min. 7.0 22.8 7.2 22.8
(at cooling) Med. m3/min. 6.1 – 6.2 –
Low m3/min. 5.3 – 5.3 –
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, AZ-24H7E; 7m
Drain piping mm O.D ø 18
Others
Safety device Compressor: Thermal protector Compressor: Thermal protector
Fan motors: Thermal fuse
Fuse, Micro computer control
Air filters Polypropylene net (Washable)
Net dimensions Width mm 750 698 750 698
Height mm 270 530 270 530
Depth mm 183 250 183 250
Net weight kg 8 28 8 28
Note: The condition of star (
) marked item are ‘ISO5151’.

4
AH-X079E/X099E
AY-X079E/X099E
EXTERNAL DIMENSIONS
Figure E-1. INDOOR UNIT
Figure E-2. OUTDOOR UNIT
AY-F22SE
750
270
183
800
Power supply cord
Right
Left : 1.8m : 1.1m
Length unit (mm)
19.5
58
CRMC-A442JBE0
R03(AAA) 2PCS.
FULL
POWER
SHARP CORPORATION
INVERTER AIR CONDITIONER
182
AU-F22SEY
250
280
304
470
10.5
38
58
5hole
185 35
85
135
515
530
15
698
129
Length (mm)

5
AH-X079E/X099E
AY-X079E/X099E
The front position of auxiliary pipe is
stamped on the installation plate. 
It is used as a position mark when the 
piping is connected.
A
A
At a distance equal to the scale 
stamped on the installation plate 
you will find the center of rear piping 
hole. Engage the measure with the 
front holder of scale, and measure the 
distance.
B
For ø65, shift the center down by 3 
mm, and makle a hole.
C
C
The triangular dents (2 places) in the
center are for center positioning. which 
are usable for installing.
D
The hole in the center upper part has
-shape. After tentatively tightening
the screw, it is possible to ergage the 
installation plate here.
E
Unit: mm
Installation dimension range 395 to 550 (when the installation angle is used)
50 mm or more
2945
45 3038
270
C
Center of left
piping hole
Profile of indoor unit
750
590 80
Edge
80 400
75 60 135
265 100
75 90
450
ø70 piping hole
E
B
D
Center of rear piping hole
Lintel
Stamp mark
Figure E-3. INSTALLATION DIMENSIONS

6
AH-X079E/X099E
AY-X079E/X099E
Figure W-1. Wiring Diagram for AH-X079E/X099E and AY-X079E/X099E
CONTROL BOARD UNIT
TERMINAL BOARD
GREEN - YELLOW
IN DOOR UNIT
TERMINAL BOARD
SINGLE PHASE 220-240V 50Hz
BLUE
LOUVER MOTOR
ROOM TEMP THERMISTOR
PIPE TEMP THERMISTOR
TH1
YELLOW
TH2
ORANGE
DISPLAY CONTROL BOARD
BROWN In Out
RY1 COMPRESSOR RELAY
FUSE 250V 2.5A
CN3 NR1 CN4 CN1 A
BLUE
BLUE
TR SSR1
SERIAL SIGNAL CIRCUIT
RED
RED
S
C1
CN7 CN8
FAN MOTOR CAPACITOR 430V1.5µFRED
C
A BLUE
M BLACK
FAN MOTOR BLUE
UNIT TO UNIT CORD
CAUTION The voltage is high at C8 (electronic capacitor) on outdoor unit.
For mentenance, discharge at C8 to prevent electric shock. In case that WPE2 has been fused, the voltage is kept high at C8.
BK BL BR GR
BLACK BLUE BROWN GRAY
RE WH OR
RED WHITE ORANGE
G(Y) : GREEN - YELLOW
YE G YELLOW
GRENN
BLACK
R.P.M SIGNAL
5 3 1
1
14
3 5 6 2 1
3 5
N
2
1
N
2
N
L
OUTDOOR UNIT
TERMINAL BOARD
G(Y)
G(Y)
BR BL RE
RE
A M CBK BL OR
THERMISTOR COMP. TEMP. TH1
CN1
WH
BK
RE
BL
YE
BL
YE
U V W
U(R) V(S) W(C )
COMPRESSOR
POWER TRANSISTOR MODULE (PM1)
TH2
RE
CONTROL BOARD UNIT
T1
T4
T5 BR
RE
MRY1
IN OUT
T9
T7
T8 T10
10A 250V
DB1
DIODE BRIDGE
GR BK
I
O O
I
L L
C8 C8: 1500µF 420V
AF1 ACTIVE FILTER
PTC1
GR
T2 C31 C2
C3
C1
C5
CT1
NR2
RY1
CN3
CN8
C4
L3 L4
SA1 NR1
T3
WPE1
WPE2
WPE3  3A 250V
13A 250V
FAN MOTOR
FAN MOTOR CAPACITOR 430V 1.5µF
THERMISTOR PIPE TEMP.
G TH3
THERMISTOR AIR TEMP.
EXCEPT COOLING ONLY MODEL
FC5
FC4
YE YE GR BK
L1
1 3
CNR1
CNR2
CNA
FAN MOTOR
4 WAY VALVE
RY2
EXCEPT COOLING ONLY MODEL
WIRING DIAGRAMS

7
AH-X079E/X099E
AY-X079E/X099E
For Model AH-X079E/X099E, AU-X079E/X099E, AY-A079E/X099E and AE-A079E/X099E
DESCRIPTION MODEL REMARKS SITE
Indoor fan motor ML-A486 220 - 240V, 50Hz AH, AY
Indoor fan motor capacitor – 430V, 1.5µF AH, AY
Transformer – Primary; AC 230V, 50Hz AH, AY
Secondary; AC14.6V, 50Hz
Fuse – 250V, 2.5A AH, AY
Compressor HV166A1-S10DK 3-PHASE Induction motor AU, AE
Outdoor fan motor ML-A485 220 - 240V, 50Hz AU, AE
Outdoor fan motor capacitor – 430V, 1.5µF AU, AE
WPE1 – QFS-AA047JBE0(13A, 250V) AU, AE
WPE2 – QFS-GA015JBE0(10A, 250V) AU, AE
WPE3 – QFS-GA008JBE0(3A, 250V) AU, AE
or QFS-GA027JBE0 (3A, 250V) AU
ELECTRICAL PARTS

8
AH-X079E/X099E
AY-X079E/X099E
BLOCK DIAGRAMS
INDOOR UNIT for AH-X075E/X095E and AY-X075E/X095E
DC power supply circuit
Fan motor phase control circuit
Rotation pulse input circuit
AC clock circuit
Louvre motor drive circuit
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
Power on circuit
Flow direction control
(louvre motor)
Wireless remote control
operation
Audible operation confirmation
Room fan motor
Fan motor pulse detect
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)
Self diagnostics,
fault diagnosis
AC power
Unit-unit
wiring (AC
power and
serial
signals)
CPU
Auxiliary mode Auxiliary mode button ON/OFF
2.5 A
FUSE

9
AH-X079E/X099E
AY-X079E/X099E
OUTDOOR UNIT for AU-X075E/X095E and AE-X075E/X095E
CPU
Test mode circuit
Model select swith circuit 
(Dip switch)
LED drive circuit
Winter kit circuit (option)
Heat exchanger pipe 
thermo circuit
Compressor thermo circuit
CPU reset circuit
Serial I/O circuit
Power transistor module 
drive circuit
4-way valve relay drive
circuit
Outdoor fan relay drive
circuit
Power supply
circuit (built
into IPM)
CPU oscillator circuit
AC overcurrent detection
circuit
DC overcurrent detection
circuit
LED
Heat exchanger pipe
thermistor
Compressor thermistor
Current transformer
Compressor
Power 
transistor module
4-way valve (except for
the AU-X099E/X079E)
Outdoor fan
Smoothing
circuit Active filter circuit Filter circuit
Unit-unit
wiring (AC
power and
serial
signals)
13 A
protection
Outdoor temp. thermo. 
circuit Outdoor temperature  thermistor
10 A 
protection
3 A
protection
Heat exchanger pipe
thermistor(option)
Outdoor temperature
thermistor(option)

10
AH-X079E/X099E
AY-X079E/X099E
MICROCOMPUTER CONTROL SYSTEM
Figure L-1. Electronic Control Circuit Diagram for
AH-X079E/X099E and AY-X079E/X099E
+
–
+
–
+
–
+
–
+
–
+
–
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
IC5
5 4 3 2 1
1 2 3 4 5
1 2 3 4 5
2 1 4 3
1
2
N
5 1 6
C6  100µ 10v
C5 47µ 25v
C4 0.1µ 25v
C3 1000µ 25v
C80  0.1µ 25v
C8 0.01µ 16v C7
1000P 50v
C11 10µ 16v
C12 10µ 16v
C10 0.1µ 50v
C9 1000P 50v
C17  100µ 10v
C102 0.1µ 25v
C101 33µ 10v
C22 1000P 50v
C2 0.22µ 250v AC
R4 33k
R3 2W 270
R9 10k
R81 1k
R80 6.8k
R6 3.3k
R7 20k
R14 10.0kF R13 10.0kF
R20 3.3k
C16 0.01µ 16v
R21 3.3k
R31 R33
R35
R39
R13 10k
R38 R36 R34 JP12 R32 R30
R37
R22 1.2k
R10 680
R12 12k
SW1
R11 330
JP11
NC
NC
NC
NC
NC
NC
NC
R5  33k
R1  470  1/2w
R16  1.8k
RY1
5V
+
–
12V
D1 D3 D4
D2
JP10
NR1
13 11
SSR1
S201D01
NF1
FUSE
RY1
IN
OUT
THERMAL  FUSE 103˚C
TERMINAL  BOARD
OUTDOOR UNIT
EVAPORATOR
SIRIAL  SIGNAL
2.5A 250v T
CNR1
C1 1.5µ 430v
C21 0.01µ250vAC
POWER SUPPLY SINGLE PHASE
Q1
3
12CN7
CN701
(R91) 2W 12k
(R90) 2W 12k
D9
D6
TR TRANSFORMER
12V
IC2
9
8
12V
BZ
12V 12V 12V
SSR1
CN101 CN1
PHOTO DETECTOR UNIT
AUX.
(TEST RUN)
(YELLOW) LED102
(RED) LED101
IC101
2 3
CN3
2 3 4 5
CN301
CN4
LOUVER MOTOR
FUNCTION
MODEL 1 fmin UP ON/OFF
MODEL 2 THERMO SHIFT ON/OFF
MODEL 3 AH/AY MODEL 4
fmax DOWN ON/OFF
MODEL 5 OUT T. THERMO ON/OFF
MODEL 6 07/09 MODEL 7
HOT KEEP ON/OFF
WIRELESS CHANGE ON/OFF
PREHEAT ON/OFF RATE
COOL RATE
HEAT FAN L
SPEED FAN M
SPEED FAN H 
SPEED
IC1 PIN NO. 36(P24)
SYMBOL JP1
AH-X079E AH-X099E
AY-X079E AY-X099E
X NONE
33(P27)
JP4
X NONE
20(P40)
JP5
19(P41)
JP6
35(P25)
JP2
X NONE
34(P26)
JP3
USE
16(P44)
JP9
X NONEX NONE
NOTE :
1. : TEST POINT
5V
D5
5V
5V
JP99
POWER ON
5V
5V 5V
5V
5V
5V
5V
5V
R18 2.7k
R19 4.7k
12V
5V
TH2
PIPE TEMP.
15k(25˚C)
TH1
ROOM TEMP.
10k(25˚C)
5V
5V
NC NC NC
NC NC NC
NC
1 2 3 4
8 7
IC80
6 5
JP4
RATING COOL RATING HEAT
FAN L FAN M FAN H
WIRELESS
PREHEAT
MODEL 6 MODEL 5
MODEL 7
MODEL 1 MODEL 2 MODEL 3 MODEL 4
JP3 JP2 JP1
JP6 JP7 JP8 JP9
OCS
8MHz
3
3
2
1
1
2
JP5
CN8
INOUT
GND
ZD1 HZ5C-1
7812
2. Not specified is 1/5w
18(P42)
JP7
USE
USE
17(P43)
JP8
8(P30)
R30, R31
7(P31)
R32, R33
4(P50)
R34, R35
3(P51)
R36, R37
R38: JP R39: NONE
R36: JP R37: NONE
R34: JP R35: NONE
R32: JP R33: NONE
R30: 5.1k R31: 13k
X NONE X NONEX NONE USE X NONEX NONE
X NONE USEUSE R38: JP
R39: NONE
R36: JP R37: NONE
R34: JP R35: NONE
R32: JP R33: NONE
R30: 5.1k R31: 13k
X NONE X NONEX NONE X NONEX NONE
USE
USE USE R38: JP
R39: NONE
R36: JP R37: NONE
R34: JP R35: NONE
R32: 15k R33: 13k
R30: 5.1k R31: 13k
X NONE X NONE
X NONE X NONEX NONE
X NONE X NONE X NONEX NONE
X NONE USE R38: JP
R39: NONE
R36: JP R37: NONE
R34: JP R35: NONE
R32: 15k R33: 13k
R30: 5.1k R31: 13k
2(P52)
R38, R39
1
IC3
1 2
1 3 5
1 2 3
3 4 2
FAN 
MOTOR
R41 R40 R43
R23 100k
R24 22k
1
23
4
C19 0.047µ 50v
C18 100µ 35v
ZD2 HZ24-2
R44 2W 680 x 5
D7
R42
A S
+
–
C14 1µ 10v
C15 0.01µ 16v
R26 2W 11k R27 2W 11k
C20 0.01µ 250v
5V
R25 4.7k 4
3
PC1 PC2
2
1