Sharp AU-MP14 User manual

SPECIFICATIONS..............................................................................................................................................2
EXTERNAL DIMENSIONS.................................................................................................................................4
WIRING DIAGRAMS..........................................................................................................................................5
ELECTRICAL PARTS........................................................................................................................................6
MICROCOMPUTER CONTROL SYSTEM.........................................................................................................7
PRINTED WIRING DIAGRAM............................................................................................................................8
FUNTIONS........................................................................................................................................................10
TROUBLESHOOTING......................................................................................................................................14
REFRIGERATION CYCLE AND PERFORMANCE CURVES..........................................................................16
DISASSEMBLING PROCEDURE.....................................................................................................................17
REPLACEMENT PARTS LIST..........................................................................................................................25
SERVICE MANUAL
SPLIT SYSTEM
ROOM AIR CONDITIONER
INDOOR UNIT OUTDOOR UNIT
AH-129 AU-129
AH-MP14 AU-MP14
SHARP CORPORATION
CONTENTS
OUTDOOR UNIT
AU-A18FV
AU-A24FV
1
SHARP CORPORATION
Page

CHAPTER 1. PRODUCT SPECIFICATION
[1] SPECIFICATION
1. AH-129 / AU-129
ITEMS INDOOR UNIT OUTDOOR UNIT
A
H-129 AU-129
Cooling capacity kW 3.50
Moisture removal Liters/h –
Electrical data
Phase Single
Rated frequency Hz 50
Rated voltage V 220
Rated current A5.1
Rated input * W 1090
Power factor % 97 - 99
Compressor Type Hermetically sealed rotary type
Model RH207VXGT
Oil charge 520cc (DIAMOND MS56)
Refrigerant system Evaporator Slit fin and Grooved tube type
Condenser Slit fin and Grooved tube type
Control Capillary tube
Refrigerant volume 960g
Noise level High dB(A) 39 48
Mid. dB(A) 33 –
Low dB(A) 29 –
Fan s
y
stem
Drive Direct drive
Air flow quantity High m3
/
min. 10.2 27
Mid. m3
/
min. 9.6 –
Low m3
/
min. 8.7 –
Fan Cross flow fan Propeller fan
Connections
Refri
g
erant cou
p
lin
g
Flare t
yp
e
Refri
g
erant tube size Gas, Li
q
uid 3
/
8" , 1
/
4"
Drain piping mm O.D 18
Others
Safety device Compressor : Internal protector
Fan motor : Thermal fuse / Protector
Fuse, Micro computer control
Air filters Polypropylene net (Washable)
Net dimensions Width mm 790 730
Height mm 278 540
Depth
Net weight mm
kg 198
10 250
34
2
φ

2. AH-MP14 / AU-MP14
ITEMS INDOOR UNIT OUTDOOR UNIT
A
H-MP14 AU-MP14
Cooling capacity kW 3.50
Moisture removal Liters/h –
Electrical data
Phase Single
Rated frequency Hz 50
Rated voltage V 220
Rated current A5.1
Rated input * W 1090
Power factor % 97 - 99
Compressor Type Hermetically sealed rotary type
Model RH207VXGT
Oil charge 520cc (DIAMOND MS56)
Refrigerant system Evaporator Slit fin and Grooved tube type
Condenser Slit fin and Grooved tube type
Control Capillary tube
Refrigerant volume 960g
Noise level High dB(A) 39 48
Mid. dB(A) 33 –
Low dB(A) 29 –
Fan s
y
stem
Drive Direct drive
Air flow quantity High m3
/
min. 10.2 27
Mid. m3
/
min. 9.6 –
Low m3
/
min. 8.7 –
Fan Cross flow fan Propeller fan
Connections
Refri
g
erant cou
p
lin
g
Flare t
yp
e
Refri
g
erant tube size Gas, Li
q
uid 3
/
8" , 1
/
4"
Drain piping mm O.D 18
Others
Safety device Compressor : Internal protector
Fan motor : Thermal fuse / Protector
Fuse, Micro computer control
Air filters Polypropylene net (Washable)
Net dimensions Width mm 790 730
Height mm 278 540
Depth
Net weight mm
kg 198
10 34
250
3
φ
φφ

4
[2] EXTERNAL DIMENSION
1. Indoor unit (AH-129 / AH-MP14)
2. Outdoor unit (AU-129 / AU-MP14)
278
198790
250
165
167.5
136
81
730
72
540
299 324
515
12
37.5
4.5
58
135
14

[3] WIRING DIAGRAM
Indoor Unit (AH-129)
Indoor Unit (AH-MP14)
Outdoor (AU-129 / AU-MP14)
5
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CHAPTER 2. ELECTRIC CIRCUIT
[1] ELECTRIC PARTS
1. AH-129 / AU-129
DESCRIPTION MODEL REMARKSSITE
Compressor RH207VXGT 220V, 50Hz, 1120W OUTDOOR
Indoor fan motor CMOT-A448JBKZ 220 - 240V , 50Hz INDOOR
Outdoor fan motor CMOTLB182JBEZ 220 - 240V , 50/60Hz OUTDOOR
Indoor fan motor capacitor — 450V, 2µFINDOOR
Outdoor fan motor capacitor — 400V, 2µFOUTDOOR
Running capacitor — 400V, 30µFOUTDOOR
Transformer — Primary ; AC 220 /240V 50Hz
Secondary ; AC15.3V , 50Hz INDOOR
—
Fuse — 250V, 2.5A INDOOR
2. AH-MP14 / AU-MP14
6
DESCRIPTION MODEL REMARKSSITE
Compressor RH207VXGT 220V, 50Hz, 1120W OUTDOOR
Indoor fan motor CMOT-A448JBKZ 220 - 240V , 50Hz INDOOR
Outdoor fan motor CMOTLB182JBEZ 220 - 240V , 50/60Hz OUTDOOR
Indoor fan motor capacitor — 450V, 2µFINDOOR
Outdoor fan motor capacitor — 400V, 2µFOUTDOOR
Running capacitor — 400V, 30µFOUTDOOR
Transformer — Primary ; AC 220 /240V 50Hz
Secondary ; AC15.3V , 50Hz INDOOR
—
Fuse — 250V, 2.5A INDOOR

[2] MICRO-COMPUTER CONTROL SYSTEM
1. Electronic Control Diagram
Indoor unit (AH-129 / AH-MP14)
7

2. PRINTED WIRING DIAGRAM
2.1 Indoor (AH-129)
8

2.2 Indoor (AH-MP14)
9

CHAPTER 3. FUNCTIONS
[1] FUNCTION
TEMPERATURE CONTROL
CHARACTERISTIC 1.1. COOL operation 2.2. DRY
On the switch on, the compressor always starts to operate for 2
minutes with fan speed "DL".
In the "COOL" mode, the thermostat circuit is controlled by five
thermostat lines (C1 thru C5). The microcomputer reads the room temperature 2 minutes after
this first compressor operation.
This room temperature is set as the preset temperature
ttill
The preset temperature ranges from 18 C to 32 C. When the room
temperature is below 18 C, the preset temperature is set to 18 C,
and when the room temperature is over 32 C, the preset
temperature is set to 32 C.
Dry operation is divided into three zones (Cooling zone,
Dehumidifying zone and Circulating zone) by thermostat lines (D1
to D3), and the compressor and the fan motor are controlled in
each zone as shown in Table.
18 32
Preset temperature (C )
1.2. DRY
In the "DRY" mode, the thermostat circuit is controlled by three
thermostat lines (D1 thru D3).
18 32
Preset tem
p
erature
(
C
)
Compressor Fan speed
Cooling zone (1) & (5) ON "DH"
Dehumidifying zone (2) & (4) ON "DL"
Circulating zone (3) OFF "DL" or OFF
18 32
Preset tem
p
erature
(
C
)
FAN SPEED
Fan speeds are given by the indoor fan motor, "DL"~"CH" which
are available in the following operation mode.
OPERATION MODES
2.1. COOL operation NOTE: Fan speed may be changed, without warning.
Fan
speed Fan switch Fan switch (AUTO) AH-129 / AH-MP14
(r.p.m)
The compressor turns on or off, at the thermostat lines C3 and
C4. The outdoor fan motor is also controlled with the compressor. DL —DRY 800
DH —890
CL COOL LOW — 800
CAL —COOL 840
CM COOL MID 980
CAH —1020
CH COOL HIGH — 1170
FREEZE PREVENTIVE
When the indoor pipe temperature falls below 3 C cool or dry
operation for 3 minutes or more, the compressor is turned off.
When the indoor pipe temperature rises above 7 C in cool or dry
operation for 3 minutes or more, the compressor is turned on.
18 32
Preset tem
p
erature
(
C
)
10
°°
°
°
°
°
°
°
°
°
°
°

r
TEST RUN OUTPUTS IN EACH OPERATION MODE
If the "AUX" button on the unit is pressed for 5 seconds or more
during operation, cool test operation starts. The operation LED (red)
flickers during test run. Mode Compres-
sor Outdoor
Fan Motor Indoor Fan Motor Valve Coil
OCooling ON ON ON OFF
In cool mode continuous compressor on operation is performed. In
dry mode the operation is in dehumidifying zone. O
UCirculat-
ing OFF OFF ON OFF
TIMER Cooling ON ON L/UL OFF
}
oDehu-
midiflying ON ON UL/D OFF
6.1. ON/OFF Timer Circulat-
ing OFF OFF D/OFF OFF
When the unit operates during one hour after the OFF-time is set, tem-
p
erature settin
g
is automaticall
y
shifted
(
in
operation and dry operation). When the ON-timer is set in cool
operation, operation starts before 0 to 30 minutes(depends on the
room temperature
)
so that preset temperature is obtaind at set time.
POWER ON START
If the connecting wire "POWER ON" (JP99) is cut on the PWB
ass'y, when the power is supplied by turning on a circuit breaker,
the air conditioner automatically starts of operation in "AUTO".
6.2. 1 hour timer (Refer to Printed Wiring Board.)
When ONE-HOUR timer is set, the unit turns off automatically afte
one hour. The one hour timer operation has priority over other time
operation, such as the TIMER ON and TIMER OFF. If the
ONE-HOUR TIMER button is pressed again during operation, the unit AUTO RESTART
11.1. When JP5 is ON
Power failuer occurs during operation, the unit will restart in the
same operation mode as before recovery.
AUTOMATIC AIR CONDITIONING
When automatic air conditioning is selected, the operation mode and
preset temperature are set automatically according to the room
temperature on starting operation. 11.2. When JP5 is OFF
Auto restart function is not available.
Room temperature
at o
p
eration start Operation Mode Preset Temperature
Above 28°C26°C
26°C > 28°C COOL 25°C
24°C > 26°C24°C
Below 24°C DRY Room temperature at
operation start
When DRY mode is selected by the micro computer with AUTO
operation, the fan speed lamps on the indoor unit panel will indicate
identically with the fan speed symbols on the remote control dispaly,
as the FAN speed setting is changed accordingly. Despite,
AUTOMATIC FAN SPEED
When the automatic fan speed is selected in cool operation, the fan
speed is automatically changed by the thermostat lines C1 to C3 in
cool operation.
11
+0.33 C +0.66 C +1 C
(After 1H) (After 1.5H) (After 2H)
°°°

[2] TEST MODE
1. AH-129
Keep pushing the "AUX." buttons and supply the power, the system will go to the test mode. In this mode, the output of operation is switched by
pushing the ""AUX." button in the unit or the "OI" button in the remote controller. Normal outputs are shown in Table.
STEP No. OUTPUT "-" : NO CHECK, "O" : ON, "X" : OFF
BUZZER FAN
MOTOR
LOUVER OUTDOOR
LED 101 LED 102 LED 103 LED 104
RED YELLOW GREEN BLUE
STEP0
BEEP2 O*1O*2O XXXX*1 : 7°C<(ROOM TEMP.)<42°C
*2 : -2°C<(PIPE TEMP.)<45°C
STEP1 BEEP1 X X O XO OPEN O
STEP2 BEEP1 O RPM X O XO X X
STEP3 BEEP1 O *4 X XO X O *4 : O --- POWER ON INVALIDITY
STEP4 BEEP1 O IC8 O O XO X X *4 : X --- POWER ON VALIDITY
STEP5
BEEP1 OOOXOXO
STEP6 BEEP1 X R.C. X O XO X X
STEP7
BEEP1 XXXXOXO
STEP8
BEEP1 XXOXOXX
STEP9 BEEP1 O X O XO X O
STEP10 BEEP1 O O O XX CLOSE O
1. AH-MP14
STEP No. OUTPUT "-" : NO CHECK, "O" : ON, "X" : OFF
BUZZER FAN
MOTOR
LOUVER OUTDOOR PLASMA
CLUSTER
LED 101 LED 102 LED 103 LED 104
RED YELLOW GREEN BLUE
STEP0
BEEP2 O*1O*2O OXXXX*1 : 7°C<(ROOM TEMP.)<42°C
*2 : -2°C<(PIPE TEMP.)<45°C
STEP1 BEEP1 XXOXO OPEN O X
STEP2
BEEP1 ORPMO O OOXXO
STEP3 BEEP1 O *4 X XO X O O *4 : O --- POWER ON INVALIDITY
STEP4
BEEP1 OIC8O O XOXXX*4 : X --- POWER ON VALIDITY
STEP5 BEEP1 X O O XOXOX
STEP6
BEEP1 XR.C.X O XOXXX
STEP7
BEEP1 XXXXOXOX
STEP8
BEEP1 XXOXOXXX
STEP9
BEEP1 O X O XOXOX
STEP10 BEEP1 OOOXX CLOSE O X
12

[3] DIAGNOSIS PROCEDURE
1. AH-129 / AH-MP14
When indoor fan motor is out of order occurs, indoor fan motor and louver are all stopped and the operation LED(red) turns on or off
synchronously with the timimg of the timer LED.
When the thermistor for room temperature or pipe temperature is open or short state, the operation LED turns on or off synchrnoously with the
timing of the timer LED by pushing continously for more than 5 seconds "AUX." button during suspension of operati
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 DIAGNOSIS
When the louver unit is not properly installed, all lamps on the indicator panel will blink operation are all stop and Remote signal is not accept.
PROCEDURE
13

CHAPTER 4. TROUBLESHOOTING
14

CHAPTER 4. TROUBLESHOOTING
15

16

DISASSEMBLING PROCEDURE MODEL: AH-129 ,AH-MP14
[1] INDOOR UNIT
Be sure to disconnect the power supply cord from the AC power outlet before starting the disassembly procedure. When reassembling the unit-
after repairing, besure to install screws to their original positions.
The screws used are not the same in specifications such as corrosion-resistant treatment, tip shape and length.
After the air conditioner is repaired or parts or replaced, measure insulation resistance of the equipment using and insulation resistance meter.
if the measured resistance is lower than 1M , inspect parts and repair or replace defective parts.
1) Open the open panel. 5) Pushing the 2 hooks, disconnect the louver base(2)
2) Remove screw fixing the cord clamp.
6) Remove 2 air filters.
3) Remove the cord clamp. 7) Remove the Screw cover (use the(-)driver).
4) Remove the unit-to-unit wiring from the terminal board(4). 8) Remove the cover.
17
Ω

9) Remove 5 screws fixing the front panel. 14) Remove the control box.
10) Pull the front panel up.
11) Remove a screw fixing the Control box cover,
and remove it 15) Remove the LED guide.
16) Pushing the 2 hooks of the holder, remove the display
12) Remove the 2 screws fixing the control box. board
13) Disconnect the thermistor. 17) Remove a screw fixing the holder.
18

18) Remove the holder. 21) Remove the screw fixing the evaporator ass'y and -
evaporator.
22) Remove the drain guide.
19) Remove 2 screws fixing the holder. (AH-MP14)
23) Remove 2 screws fixing the evaporator.
20) Remove 2 screws fixing the PC cover. (AH-MP14)
24) Remove 2 screw fixing the evaporator and bushing holder.
19

25) Pull the evaporator ass'y up. 28) Remove the screw fixing cross flow fan.
26) Take out the left side of the drain pan.
29) Hold up the left side of evaporator, pull out cross flow
fan
Attention: In case of assembly.
Part A is inserted into the drain part of the drain pan.
27) Take out the right side of the drain pan leaving drain-
hose in cabinet.
20