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
°°
°
°
°
°
°
°
°
°
°
°