Sharp AH-S22DP2, AH-S25DP2, AH-S32DP2, AU-S32DP2, AU-S25DP2 Service Manual
...
1
AH-S22DP2
AH-S25DP2
AH-S32DP2
S3313AHS32DP2
SPLIT TYPE
ROOM AIR CONDITIONERS
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.
SERVICE MANUAL
Page
SPECIFICATIONS ............................................................................................................................................. 2
EXTERNAL DIMENSIONS ................................................................................................................................. 3
WIRING DIAGRAMS ......................................................................................................................................... 4
ELECTRICAL PARTS ......................................................................................................................................... 6
BLOCK DIAGRAM ..............................................................................................................................................7
MICROCOMPUTER CONTROL SYSTEM ......................................................................................................... 9
FUNCTIONS .................................................................................................................................................... 15
FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES ............................................................... 22
BREAKDOWN DIAGNOSIS PROCEDURE .................................................................................................... 24
REFRIGERATION CYCLE .............................................................................................................................. 27
PERFORMANCE CURVES ............................................................................................................................. 28
DISASSEMBLING PROCEDURE .................................................................................................................... 29
OPTION ........................................................................................................................................................... 36
REPLACEMENT PARTS LIST ........................................................................................................................ 38
TABLE OF CONTENTS
MODELS
SHARP CORPORATION
AH-S22DP2
AH-S25DP2
AH-S32DP2
OUTDOOR UNIT
INDOOR UNIT
AU-S22DP2
AU-S25DP2
AU-S32DP2
2
AH-S22DP2
AH-S25DP2
AH-S32DP2
SPECIFICATIONS
MODEL
I
NDOOR UNIT
OUTDOOR UNIT
INDOOR UNIT
OUTDOOR UNIT
INDOOR UNIT
OUTDOOR UNIT
ITEMS AH-S22DP2 AU-S22DP2 AH-S25DP2 AU-S25DP2 AH-S32DP2 AU-S32DP2
Cooling capacity(Min. ~ Max.)
k/W 2.0 (1.0 - 2.6) 2.1 (1.0 - 2.9) 2.7 (0.9 - 3.7)
Moisture removal
Liters/h 0.7 0.8 0.9
Electrical data
Phase Single
Rated frequency Hz 60
Rated voltage V 220
Rated current A3.6 3.74.5
Rated input (Min. - Max.) W 720(400 - 1050) 730(400 - 1200) 900(330 - 1500)
Power factor %91 9091
Type Hermetically sealed rotary type
Compressor Model 2RV110N5EA04 HV237A1-S15DK
Oil charge ATMOS M60 or SUNISO 4GDID 260 cm
3
SUNISO 4GSD 455 cc
Evaporator Bare tube type Grooved tube type Grooved tube type
Refrigerant system Condenser Louver Fin and Grooved tube type
Control Capillary tube
Refrigerant volume
510g 530g 750g
Noise level
High dB(A) 35 43 36 43 38 48
(at cooling)
Med. dB(A) 31 – 32 – 33 Low dB(A) 26 – 27 – 29 -
Fan system
Drive Direct drive
Air flow quantity High m3/min. 7.5 29 8.0 29 9.4 32
(at cooling) Med. m3/min. 6.5 – 7.0 – 8.0 –
Low m3/min. 5.1 – 5.2 – 6.5 –
Fan
Cross flow fan Propeller 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" 1/2", 1/4"
Drain piping mm O.D ø 18
Others
Compressor: Thermal protector
Safety device Fan motors: Thermal fuse
Fuse, Micro computer control
Air filters Polypropylene net (Washable)
Width mm 815 780 815 780 815 780
Net dimensions Height mm 278 540 278 540 278 540
Depth mm 198 269 198 269 198 269
Net weight kg 9 31 9 33 10 38
Note: The condition of star " " marked item are 'CNS14464 B 7291 : T1'.
3
AH-S22DP2
AH-S25DP2
AH-S32DP2
EXTERNAL DIMENSIONS
Figure E-1. INDOOR UNIT
Figure E-2. OUTDOOR UNIT
269
179.5
182.5
136
81
780
70
540
310
335
540
12
37.5
4.5
58
158
16
815
278
198
Length unit (mm)
22.0
58
CRMC-A442JBE0
R03(AAA) 2PCS.
SHARP CORPORATION
INVERTER AIR CONDITIONER
18.5
175
1700
Power supply cord
4
AH-S22DP2
AH-S25DP2
AH-S32DP2
WIRING DIAGRAMS
Figure E-3. 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
E
D
D
FA
C
J
H
I
GB
21
278 (unit size)
38
Ceiling
E
Figure W-1. Wiring Diagram for AH-S22DP2/S25DP2/S32DP2
5
AH-S22DP2
AH-S25DP2
AH-S32DP2
Figure W-2. Wiring Diagram for AU-S22DP2/S25DP2
Figure W-3. Wiring Diagram for AU-S32DP2
6
AH-S22DP2
AH-S25DP2
AH-S32DP2
For Model AH-S22DP2/S25DP2/S32DP2
DESCRIPTION MODEL REMARKS
Indoor fan motor ML-A901 220 - 240V, 50Hz 220 - 230V, 60Hz
Indoor fan motor capacitor – 430V or 450V, 2µF
Transformer – Primary; AC 220 - 240V, 50/60Hz
Secondary; AC19V
WPE1 – QFS-GA053JBZZ (2.5A, 250V)
For Model AU-S22DP2/S25DP2
DESCRIPTION MODEL REMARKS
Compressor 2RV110N5EA04 3-PHASE Induction motor
Outdoor fan motor ML-A902 220 - 240V, 50Hz 220 - 230V, 60Hz
Outdoor fan motor capacitor – 430V or 450V, 1.5µF
WPE1 – QFS-GA033JBZZ(15A, 250V)
WPE2 – QFS-GA015JBE0(10A, 250V)
WPE3 – QFS-GA054JBZZ (3.15A, 250V)
For Model AU-S32DP2
DESCRIPTION MODEL REMARKS
Compressor HV237A1-S15DK 3-PHASE Induction motor
Outdoor fan motor ML-A903 220 - 240V, 50Hz 220V, 60Hz
Outdoor fan motor capacitor – 430V or 450V, 2µF
WPE1 – QFS-GA014JBE0(20A, 250V)
WPE2 – QFS-GA019JBE0(20A, 250V)
WPE3 – QFS-GA054JBZZ (3.15A, 250V)
ELECTRICAL PARTS
7
AH-S22DP2
AH-S25DP2
AH-S32DP2
BLOCK DIAGRAMS
INDOOR UNIT
AC power
CPU
2.5A
protection
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
Cluster generator drive circuit
Cluster generator sensor circuit
Gas sensor circuit
Dust sensor circuit
Indoor 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
Cluster generator
Unit-unit wiring
(AC power and
serial signals)
8
AH-S22DP2
AH-S25DP2
AH-S32DP2
CPU
15 A
protection
Outdoor fan motor
4-way valve(except for
the AU-X08BE/X10BE)
Power transistor module
Compressor
Current transformer
Compressor thermistor
Heat exchanger pipe thermistor
Outdoor temperature thermistor
LED
3.15 A
protection
10 A
protection
Power supply circuit
(built into IPM)
CPU oscillator circuit
Outdoor fan motor relay drive circuit
4-way valve relay drive circuit
(except for the AU-X08BE/X10BE)
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
LED drive circuit
Test mode circuit
Filter
circuit
Smoothing
circuit
Unit-unit wiring (AC power
and serial signals)
CPU
20 A
protection
Outdoor fan motor
4-way valve(except for
the AU-X13BE)
Power transistor module
Compressor
Current transformer
Compressor thermistor
Heat exchanger pipe thermistor
Outdoor temperature thermistor
LED
3.15 A
protection
20 A
protection
Power supply circuit
(built into IPM)
CPU oscillator circuit
DC overvoltage detection circuit
Outdoor fan motor relay drive circuit
4-way valve relay drive circuit
(except fot the AU-X13BE)
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
LED drive circuit
Test mode circuit
Filter
circuit
Smoothing
circuit
Unit-unit wiring (AC power
and serial signals)
OUTDOOR UNIT for AU-S22DP2/S25DP2
OUTDOOR UNIT for AU-S32DP2
9
AH-S22DP2
AH-S25DP2
AH-S32DP2
MICROCOMPUTER CONTROL SYSTEM
Figure L-1. Electronic Control Circuit Diagram for AH-S22DP2/S25DP2/S32DP2
10
AH-S22DP2
AH-S25DP2
AH-S32DP2
Figure L-2 Printed Wiring Board for AH-S22DP2/S25DP2/S32DP2
TOCLUSTERGENERATOR
FROMCLUSTERGENERATOR
FROMDUSTSENSOR
BCN201
or
BCN401
FROM
TERMINALLOF
TERMINALBOARD3
P
(BROWN)
FROM
TERMINAL1OF
TERMINALBOARD4
P
(BLACK)
TO
TERMINALNOF
TERMINALBOARD4
P
(BLUE)
TO
TERMINAL2OF
TERMINALBOARD4
P
(RED)
FROM
FANMOTOR
FROMFANMOTOR
FROMLOUVREMOTOR(TOP)
FROMLOUVREMOTOR(BOTTOM)
FROMTHERMISTOR
11
AH-S22DP2
AH-S25DP2
AH-S32DP2
Figure L-3. Electronic Control Circuit Diagram for AU-S22DP2/S25DP2
DB1
DB2
WHITE
DB~
DB~
DB~ DB~
BLUE
BLUE
ORANGE
ORANGE
ORANGE
L1
ORANGE
C6
RED
200V 75∝F
420V 1500∝F
C8
TB (TERMINAL BOAOD)
1
N
2
1
2
3
4
BROWN
BLUE
GREEN / YELLOW
RED
FC1
T2
T1
T4
T3
L3 L4
C31
275V 1∝F
C4
250V 2200pF
1
2
3
4
C2
275V 1∝F
C3
250V 2200pF
C34
250V 2200pF
WPE1
250V
15A
C1
275V 1∝F
C33
250V 2200pF
R2 R1
1/4W
510K
1/4W
510K
CT1
T5
T6
MRY1
PTC
BLUE
GRAY
GRAY
BLACK
RED
C30
25V 100∝F
C11
25V 0.1∝F
C18
50V 0.1∝F
R35
510
R36
510
BLUE
NOTE
1. MARK IS TEST POINT.
2. IF NOT SPECIFIED 1/4W (RESISTOR)
YELLOW
T9
T10
T7
C10
630V 0.33∝F
R39
1/2W
270K
250V
10A
WPE2
13V
5V
R40
1/2W
270K
T8
C32
250V 2200pF
1 : Red 2-10 : White
10
987654321
10
987654321
CN11 (CONTROL PWB)
U
V
W
QM1 (IPM)
TM-31T
FC2
RED
WHITE
BLACK
U
V
W
R33
R32
R31
R30
R29
R28
390 U
390 X
390 V
390 Y
390 W
390 Z
65432
1
BCN11
CN8
TH3
(THERMISTOR for OUTDOOR TEMP.)
TH2
(THERMISTOR for HEAT-EXCHANGER)
TH1
(THERMISTOR for COMPRESSOR)
R38
6.8K F
C26
16V 10 F
5V
C22
16V 10 F
C21
16V 10 F
R21
6.8K F
R20
6.8K F
C15
10V 220∝F
R10
6.8K F
R8
2.7K F
R9
1.00K F
D2
1
2
3
1
2
3
5V
C23
50V 1∝F
PST
993D
IC3
OSC1
10MHz
5V
5V
C17
10V 100∝F
F
R46
10K
R34
10K
NC
NC
5V
33343536373839404142434445464748495051525354555657585960616263
64
32313029282726252423222120191817161514131211100908070605040302
01
P27
P26
P25
P24
P23
P22
P21
P20
P17
P16
P15
P14
P13
P12
P11
P10
P07
P06
P05
P04
P03
P02
P01
P00
V
SS
P37
P36
P35
P34
P33
P32
V
CC
VSSXIX0MOD1
MOD2
RST
P60
P61
P62
P63
P64
AVSSAVR
AVCCAN7
AN6
AN5
AN4
AN3
AN2
AN1
AN0
P40
P41
P42
P43
P44
P45
P46
P47
P30
P31
NCNCNC
NC
NCNCNCNCNCNCNCNCNCNCNCNCNC
IC1 MB89855
C16
25V 0.1∝F
C20
10V 100∝F
5V
R41 10K
R3
2.2K
5V
LED1
C5
430V or 450V
1.5
µF
WPE3
250V
3.15A
NR2
Fan
Motor
5
3
1
CN3
T11
RY1
CNR1
(WINTER KIT)
C12
250V 4700pF
C14
50V 1000pF
C13
25V 0.01∝F
R4
D1
3.3K
R6
2.7K
R5
5.6K
R7
4.7K
PC817X7
PC1
PC2
PC853H
1
23
4
1
23
4
5V
R11
2W 1.0K
R12
2W 1.0K
R13
2W 1.0K
R17
10K
R16
10K
13V
RY1
D6
Q1
MRY1
D8
Q3
5V
NR1
SA1
TEMPERATURE
FUSE 103˚C
CN9
JP1
2
1
12
AH-S22DP2
AH-S25DP2
AH-S32DP2
Figure L-4. Electronic Control Circuit Diagram for AU-S32DP2
DB1
DB2
WHITE
DB~
DB~
DB~ DB~
BLUE
BLUE
ORANGE
ORANGE
ORANGE
L1
ORANGE
C6
RED
200V 90µF
400V 2000µF
C8
TB (TERMINAL BOARD)
TEMPERATURE
FUSE 103˚C
21
N
1
2
3
4
BLUE
OWN
RED
FC1
T2
T1
T4
T3
L3 L4
C31
275V 1∝F
C4
250V 2200pF
1
2
3
4
C2
275V 1∝F
C3
250V 2200pF
C34
250V 2200pF
WPE1
250V
20A
C1
275V 1∝F
C33
250V 2200pF
R2 R1
1/4W
510K
1/4W
510K
CT1
T5
T6
MRY1
PTC
BLUE
GRAY
GRAY
BLACK
RED
C30
25V 100∝F
C11
25V 0.1∝F
C18
50V 0.1∝F
R35
510
R36
510
BLUE
NOTE
1. MARK IS TEST POINT.
2. IF NOT SPECIFIED 1/4W (RESISTOR)
YELLOW
T9
T10
T7
C10
630V 0.33∝F
R39
1/2W
270K
250V
20A
WPE2
13V
5V
R40
1/2W
270K
T8
C32
250V 2200pF
1 : Red 2-10 : White
10
987654321
10
987654321
CN11 (CONTROL PWB)
U
V
W
QM1 (IPM)
TM-35
FC2
RED
WHITE
BLACK
U
V
W
R33
R32
R31
R30
R29
R28
430 U
430 X
430 V
430 Y
430 W
430 Z
65432
1
BCN11
CN8
TH3
(THERMISTOR for OUTDOOR TEMP.)
TH2
(THERMISTOR for HEAT-EXCHANGER)
TH1
(THERMISTOR for COMPRESSOR)
R38
6.8K F
C26
16V 10 F
5V
C22
16V 10 F
C21
16V 10 F
R21
6.8K F
R20
6.8K F
C15
10V 220∝F
R10
6.8K F
R8
2.7K F
R9
1.00K F
D2
1
2
3
1
2
3
5V
C23
50V 1∝F
PST
993D
IC3
OSC1
10MHz
5V
5V
C17
10V 100∝F
F
R46
10K
R34
10K
NC
NC
5V
33343536373839404142434445464748495051525354555657585960616263
64
32313029282726252423222120191817161514131211100908070605040302
01
P27
P26
P25
P24
P23
P22
P21
P20
P17
P16
P15
P14
P13
P12
P11
P10
P07
P06
P05
P04
P03
P02
P01
P00
V
SS
P37
P36
P35
P34
P33
P32
V
CC
VSSXIX0MOD1
MOD2
RST
P60
P61
P62
P63
P64
AVSSAVR
AVCCAN7
AN6
AN5
AN4
AN3
AN2
AN1
AN0
P40
P41
P42
P43
P44
P45
P46
P47
P30
P31
NCNCNC
NC
NCNCNCNCNCNCNCNCNCNCNCNCNC
IC1 MB89855
C16
25V 0.1∝F
C20
10V 100∝F
5V
R41 10K
R3
2.2K
5V
LED1
C5
430V or 450V
2.0
µF
WPE3
250V
3.15A
NR2
Fan
Motor
5
3
1
CN3
T11
RY1
CNR1
(WINTER KIT)
C12
250V 4700pF
C14
50V 1000pF
C13
25V 0.01∝F
R4
D1
3.3K
R6
2.7K
R5
5.6K
R7
4.7K
PC817X7
PC1
PC2
PC853H
1
23
4
1
23
4
5V
R11
2W 1.0K
R12
2W 1.0K
R13
2W 1.0K
R17
10K
R16
10K
13V
RY1
D6
Q1
MRY1
D8
Q3
5V
NR1
SA1
CN9
JP1
2
1
13
AH-S22DP2
AH-S25DP2
AH-S32DP2
T5(DB1~)
(BLACK)
C5
NR2
WPE3
R2
R1
C
T
1
3A 250V
RY1
CNR1
T11
(GRAY)
T10
T9
WPE2
20A
250V
(BLUE)
(YELLOW)
IPM
R33
R32
R31
R30
R29
R28
C10
R40
R39
JP1
R46
C33
Q2
C1
SA1
D7
JP2
JP17
JP19
JP18
(FAN MOTOR)
CN3
1
5
IPM
(RED)
(BLUE)
T7
CB
T8
CB
JP16
JP20
C17
R35
R36
JP25
C18
C23
R20
C21
R13
R12
R11
C22
C26
R21
R38
F
JP21
R10
JP22
IC3
C15
OSC1
R4
C12
C31
D1
R16
C13
R17
JP12
R7
C14
JP13
R6
R5
R5
PC2
PC1
C3
3
4
1
2
2
1
4
3
L3
C4
L4
C34
C2
NR1
WPE1
25A 250V
OUT
32
33
32
IC1
1
CN8
(THERMISTOR)
16
64
C20
LED1
R59
D8
C30
E
C
B
B
C
E
B
C
E
Q4
R3
R41
C12
JP7
JP6
R9
D2
R8
JP3
JP5
JP4
R60
121
BCN11 (IPM)
JP8
JP9
JP10
JP11
C16
Q3
Cool/40Hz
QPWBFB399JBZZ
DPWBFA
JBKZ
0
MRY1
PTC
(BLUE)
IN
(GRAY)
(DB1~)
(RED)
(BLUE)
(BROWN)
(GREEN/
YELLOW)
T3
T2
2
N
1
T1
T4
DIP
T6(GRAY)
PTC
R34
C32
JP14
JP15
GND
13V
5V
TERMINAL
FUSE
FROM
FAN MOTOR
FROM
POWER TRANSISTOR
MODULE QM1 " "
FROM
POWER TRANSISTOR
MODULE QM1 " "
FROM
ELECTLYTIC
CAPACITOR
C8 " "
FROM
ELECTLYTIC
CAPACITOR
C8 " "
FROM
THERMISTOR
FROM
TERMINAL
BOARD " N "
FROM
TERMINAL
BOARD " 2 "
FROM
TERMINAL
BOARD " 1 "
FROM
CONTROL BOX
FROM
DIODE BRIDGE
DB1 " ~ "
FROM
DIODE BRIDGE
DB1 " ~ "
FROM
PTC1
TO
TRANSISTOR
MODULE QM1
SHORT WIRE
T5(DB1~)
(BLACK)
C5
NR2
WPE3
R2
R1
C
T1
3A 250V
RY1
CNR1
WINTER KIT
(OPTION)
T11
(GRAY)
T10
T9
WPE2
10A
250V
(BLUE)
(YELLOW)
IPM
13V
R33
R32
R31
R30
R29
R28
BCN11 (IPM)
JP2
C32
C10
R40
R39
JP20
JP1
R46
R34
JP14
JP15
JP16
JP12
LED1
JP10
Q3
C33
Q1
C1
SA1
D6
JP9
JP8
JP7
JP4
JP6
JP5
JP3
IC2
C11
C16
JP21
JP17
JP18
R41
(FAN MOTOR)
CN3
1
5
10
12
E&J
V&W2
IPM
(RED)
(BLUE)
T7
CB
T8
CB
JP22
JP19
C17
R35
JP25
C18
C23
R20
C21
R13
R12
R11
C22
C26
R21
R38
R36
F
JP23
JP24
CN912
TERMINAL
FUSE
ONLY
W2
IC3
OSC1
R4
C12
C31
D1
R16
C13
R17
JP16
C14
R1
R6
R5
PC2
PC1
C3
3
4
1
2
2
1
4
3
L3
C4
L4
C34
C2
NR1
WPE1
15A 250V
OUT
32
33
IC1
1
CN8
(THERMISTOR)
16
64
R3
C15
R10
D8
JP11
C30
R8
D2
R9
E
C
B
E
C
B
C20
BCE
Q4
Cool/40Hz
QPWBFB397JBZZ
DPWBFA JBKZ
0
MRY1
PTC
(BLUE)
IN
(GRAY)
(DB1~)
(RED)
(BLUE)
(BROWN)
(GREEN/
YELLOW)
T3
T2
2
N
1
T1
T4
DIP
T6(GRAY)
PTC
5V
GND
FROM
FAN MOTOR
TO
POWER TRANSISTOR
MODULE QM1
FROM
POWER TRANSISTOR
MODULE QM1 " "
FROM
POWER TRANSISTOR
MODULE QM1 " "
FROM
ELECTLYTIC
CAPACITOR
C8 " "
FROM
ELECTLYTIC
CAPACITOR
C8 " "
FROM
THERMISTOR
SHORT WIRE
FROM
TERMINAL
BOARD " N "
FROM
TERMINAL
BOARD " 2 "
FROM
TERMINAL
BOARD " 1 "
FROM
CONTROL BOX
FROM
DIODE BRIDGE
DB1 " ~ "
FROM
DIODE BRIDGE
DB1 " ~ "
FROM
PTC1
Figure L-5 Printed Wiring Board for AU-S22DP2/S25DP2
Figure L-6 Printed Wiring Board for AU-S32DP2
14
AH-S22DP2
AH-S25DP2
AH-S32DP2
FUNCTIONS
1. INDOOR UNIT
1-1 Temperature Adjustment
(1) Cooling
When the room temperature is higher than the preset
temperature by 2˚Cor more, the unit runs at the
maximum operation frequency until the temperature
comes down to the preset temperature.
When reaching the preset temperature, the unit
runs at the frequency calculated by the fuzzy
operation and switches to the normal control.
(2) Dry
After operation begins, 2 minutes of the room
temperature is stored in memory, and that becomes
the set value.
1-2 Indoor fan control
The fan speed can be selected from "Auto", "Soft",
"Low",and "HIgh".When "Soft", "Low" or "HIgh" is
selected, the fanspeed is constant regardless of the
room temperature.When "Auto" is selected, the fan
speed automatically changes between "Soft" and
"HIgh" depending on the difference
between the room and preset temperature.
Control for indoor freezing prevention
If the temperature of the indoor heat exchanger stays
below approximately 1˚C for four minutes during
cooling or dry, this control stops the compressor.
Over 3˚C the compressor will run again.
1-3 Automatic operation
The operating mode and temperature setting are
determined by the room temperature and the external
air temperature.
The operating mode will changeover automatically
with the following condition.
When the set temperature is adjusted within the
range of ±2˚C by the remote control's key. ( ),
Cooling
(24˚C)
(Room temperature
- 2°C)
Cooling
(25˚C)
Cooling
(26˚C)
(Dry)
Room
temperature
(˚C)
29
28 34
Outdoor
temperature (°C)
Cooling
Set temperature
By fuzzy computing
Set the shift up time
Final ( Cooling setting + 1°C)
Dry Same as above
(Final setting + 1°C)
1°C
Stops
Timer set time
1
hour
Timer operation starts
Room
temperature
the changeover judgement room temp. will also be
shifted within the range of ±2˚C.
1-4 ON-timer
The ON-timer is set by pressing the ON-timer button.
In order to attain the set temperature at the set time,
the operation starting time is corrected by fuzzy
computing one hour before the set time.
1-5 OFF-timer
The OFF-timer is set by pressing the OFF-timer
button. Operation is as follows:
*During Cooling / Dry
1-6 Swing louvre
The louvre is moved by a stepping motor to perform
swing and fixing in the set position.
If the "FLOW DIRECTION" button is prossed during
swing, it will stop. If the "FLOW DIRECTION" button
is pressed while it is stopped, it will swing.
The vertical adjustment louvre will change its angle
continuously.
Press the SWING button again when the vertical
adjustment louvre is at the desired position.
• The louvre will stop moving within the range shown
in the diagram.
• The adjusted position will be memorized and will
be automatically set to the same position when
operated the next time.
1-7 Restart control
Once the compressor stops, this control prevents it
from starting again for 3 minutes. It also prevents
starting for 80 seconds immediately following plugging
into the power outlet.
1-8 One-hour operation
If this button is pressed when operation is stopped,
operation will begin and then stop after 1 hour. If
pressed when it is operating, will stop after one hour.
1-9 Full power operation
Immediately begins cooling or heating at maximum
power and air flow.
(During cooling) Operates at setting of 18°C.
COOL and DRY modes
FAN ONLY mode
The adjustment range
is narrower the SWING
range in order to prevent condensation from
dripping.
The range is wide so the
air flow can be directed
toward the floor.
Adjustment range
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