SHARP AE-X3M18JR Multi Split Type Room Air Conditioner SERVICE MANUAL
The SHARP AE-X3M18JR Multi Split Type Room Air Conditioner is an outdoor unit that can be used in conjunction with multiple indoor units. This system allows for individual temperature control in each room, making it perfect for multi-room applications. The AE-X3M18JR features a variety of protective functions, including DC over-current protection, AC over-current protection, compressor overheat prevention control, compressor high temperature error, and outdoor heat exchanger overheat prevention control.
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AE3XM18JR
SERVICE MANUAL
S1804AEX3M18J
MULITI SPLIT TYPE
ROOM AIR CONDITIONERS
(OUTDOOR UNIT)
MODEL AE-X3M18JR
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.
CONTENTS
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATION............................................ 1-1
CHAPTER 4. REFRIGERATION CYCLE
[2] REFRIGERANT PIPE INSTALLATION
WORKS .........................................................4-2
CHAPTER 5. DISASSEMBLING PROCEDURE
CHAPTER 2. EXPLANATION OF CIRCUIT AND OP-
ERATION
[2] FUNCTIONS .................................................. 2-2
[3] ACTIVE FILTER CIRCUIT ............................. 2-4
Parts List
CHAPTER 3. FUNCTION AND OPERATION OF PRO-
TECTIVE PROCEDURES
TIONS ............................................................ 3-1
Parts marked with " " are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.
This document has been published to be used for after sales service only.
The contents are subject to change without notice.
AEX3M18JR
CHAPTER 1. SPECIFICATIONS
Service Manual
[1] SPECIFICATION
ITEMS
Cooling capacity
3-INDOOR OPERATION
Heating capacity
3-INDOOR OPERATION
Rated current
Rated input kW
7K & 7K & 7K kW
7K & 7K & 7K
A
A
W
5.2 (2.2 – 7.2)*
6.8 (2.2 – 8.4)*
Moisture removal Liters/h 2.0
✩ Electrical data
Phase Single
Rated frequency Hz 50
Rated voltage V
Cool
Heat
Cool
230V
6.5 (2.0 – 11.7)*
7.6 (1.9 – 11.4)*
1410 (430– 2560)*
Power factor
Heat W
Cool %
Heat %
Type
1660 (420 – 2480)*
95
95
Hermetically sealed DC twin rotary
Compressor
INDOOR UNIT
AY-XPM7FR/9FR/12FR
OUTDOOR UNIT
AE-X3M18JR
Model DA130A1F-28F
Oil charge Ester oil VG74
Evaporator
Condenser
Silt Fin and Grooved tube type
Corrugate Fin and Grooved tube type
Refrigerant system
Noise level (at cooling)
Name of refrigerant R410A
Refrigerant volume 1800g
High/Med/Low dB(A)
7FR: 37/34/28
9FR: 39/36/28
12FR: 40/37/29
46
Fan system
Air flow quantity (at cooling)
Fan
Connections
Refrigerant coupling
Refrigerant tube size Gas, Liquid
Maximum length (per unit)
Maximum length (total)
Maximum charge-less length
Maximum height difference
Drain joint
Others m m m m mm
Safety device
Air filters
Net dimensions
Net weight m 3
.
/min.
High/Med/Low
7FR: 8.0/7.4/5.0
9FR: 8.6/7.9/5.6
12FR: 9.0/8.6/6.1
Cross flow fan
Flare type
3/8”, 1/4”
25
50
40
10
O.D
φ18
33
Propeller fan
Compressor: Thermistor
Fan motors: Thermal fuse (indoor unit).
Thermal protector (Out door unit)
Fuse, Micro computer control
Anti-mold polypropylene net of injection type (Washable)
Width mm 790 950 (890+60)
Height
Depth mm mm kg
278
198
9
645
323 (290+33)
56
NOTE: The condition of star “ ✩“marked item are ‘ISO5151’:
*: Representative connection
1 – 1
[2] EXTERNAL DIMENSION
950
890 60
AEX3M18JR
940
890 50 5
323
290
570 170
1 – 2
AEX3M18JR
[3] CAPACITY TABLE
Outdoor Units
AE-X3M18JR
Recommended Combination
Indoor Units
AY-XPM7/9/12FR, GS-XPM9/12, GS-XPM7/9/12FR
9
12
9
9
7
9
7
9
7
7
9
7
7
7
7
COOLING CAPACITY TABLE
Cooling Capacity (kW) Operating
Status
3-Room
2-Room
1-Room
09
09
07
12
09
07
12
12
09
07
Combination of Indoor
Units
A B C
09
12
12
09
09
09
07
09
09
07
07
07
07
07
09
07
09
07
07
OFF
OFF
OFF
07
07
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
A
1.7
2.2
2.4
1.9
2.0
1.7
2.9
3.2
2.5
2.5
2.0
3.4
2.6
2.0
B
1.7
1.7
1.4
1.9
1.6
1.7
2.1
1.8
2.5
2.0
2.0
OFF
OFF
OFF
C
1.7
1.3
1.4
1.5
1.6
1.7
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Running Current (A)
RATING (Min. - Max.) RATING (Min. - Max.)
5.2(2.2 - 7.2)
5.2(2.2 - 7.2)
6.5 (2.0 - 11.7)
6.5 (2.0 - 11.7)
5.2(2.2 - 7.2)
5.2(2.2 - 7.2)
5.2(2.2 - 7.2)
5.2(2.2 - 7.0)
6.5 (2.0 - 11.7)
6.5 (2.0 - 11.7)
6.5 (2.0 - 11.7)
6.5 (2.0 - 11.3)
5.0(1.9 - 6.5)
5.0(1.9 - 6.4)
4.9 (1.9 - 6.2)
4.5 (1.9 - 5.7)
4.0 (1.9 - 5.2)
3.4 (1.4 - 4.0)
2.6 (1.4 - 3.3)
2.0 (1.4 - 2.7)
6.4 (1.6 - 11.0)
6.4 (1.6 - 10.9)
6.3 (1.6 - 10.1)
5.5 (1.6 - 8.6)
4.6 (1.6 - 7.1)
4.4 (1.5 - 6.2)
3.1(1.5 - 4.3)
2.4 (1.5 - 3.2)
HEATING CAPACITY TABLE
Operating
Status
3-Room
2-Room
1-Room
Combination of Indoor
A
09
09
07
12
09
07
07
12
12
09
12
12
09
09
Units
B
09
09
07
09
07
07
09
07
09
07
07
OFF
OFF
OFF
C
09
07
07
07
07
07
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
A
2.3
2.9
3.1
2.4
2.7
2.3
3.8
4.2
3.1
3.2
2.5
4.0
3.0
2.4
B
Heating Capacity (kW)
2.3
2.2
1.8
2.4
2.1
2.3
2.9
2.4
3.1
2.5
2.5
OFF
OFF
OFF
C
2.3
1.7
1.8
1.9
2.1
2.3
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
6.8 (2.2 - 8.4)
6.8 (2.2 - 8.4)
6.8 (2.2 - 8.4)
6.7(1.6 - 8.0)
6.6(1.6 - 8.0)
6.2(1.6 - 8.0)
5.6(1.6 - 7.3)
5.0(1.6 - 6.4)
4.0 (1.1 - 5.2)
3.0 (1.1 - 4.2)
2.4 (1.1 - 3.3)
Running Current (A)
RATING (Min. - Max.) RATING (Min. - Max.)
6.8 (2.2 - 8.4) 7.6(1.9 - 11.4)
6.8 (2.2 - 8.4)
6.8 (2.2 - 8.4)
7.6(1.9 - 11.4)
7.6(1.9 - 11.4)
7.6(1.9 - 11.4)
7.6(1.9 - 11.4)
7.6(1.9 - 11.4)
9.0 (1.7 - 12.2)
9.0 (1.7 - 12.2)
8.2 (1.7 - 12.2)
7.1 (1.7 - 10.6)
6.0 (1.7 - 8.7)
6.4(1.5 - 9.8)
4.4 (1.5 - 7.2)
3.3 (1.5 - 5.2)
Power Consumption (W)
RATING (Min. - Max.)
1410 (430 - 2560)
1410 (430 - 2560)
1410 (430 - 2560)
1410 (430 - 2560)
1410 (430 - 2560)
1410 (430 - 2460)
1400 (350 - 2400)
1400 (350 - 2380)
1380 (350 - 2200)
1190 (350 - 1870)
1000(350 - 1550)
950 (320 - 1350)
680 (320 - 950)
520 (320 - 710)
Power Consumption (W)
RATING (Min. - Max.)
1660(420 - 2480)
1660(420 - 2480)
1660(420 - 2480)
1660(420 - 2480)
1660(420 - 2480)
1660(420 - 2480)
1970 (380 - 2670)
1970 (380 - 2670)
1800 (380 - 2670)
1550 (380 - 2310)
1320 (380 - 1910)
1400 (330 - 2150)
970 (330 - 1570)
720 (330 - 1130)
[4] ELECTRICAL PARTS
Compressor
Outdoor fan motor
Fuse 1, 101
Fuse 6
Fuse 3, 4
Fuse 5
DA130A1F-28F
MLB051
—
—
—
—
Hermetically sealed DC twin rotary
QFS-GA065JBZZ(20A,250V)
QFS-GA064JBZZ(1A,250V)
QFS-GA062JBZZ(3.15A,250V)
QFS-GA063JBZZ(2A,250V)
1 – 3
[5] WIRING DIAGRAMS
AEX3M18JR from ELECTROLYTIC
CAPACITOR C10(-) from CONTROL PWB CN14 from COMPRESSOR TERMINAL
W "ORANGE" from ELECTROLYTIC CAPACITOR C10(+) from COMPRESSOR TERMINAL
V "WHITE" from COMPRESSOR TERMINAL
U "RED" from CONTROL PWB BCN1
IPM P.W.B.
1 – 4
AEX3M18JR from
POWER
SUPPLY
P.W
.B.
RELAY P.W.B and POWER SUPPLY P.W.B.
1 – 5
CONTROL P.W.B and DISPLAY P.W.B
1 – 6
AEX3M18JR
AEX3M18JR uF C110
33 1/4W
R108-R111: R110
R108 R109
R111
C105 100uF
CN17
WHITE
WHITE
ORANGE
1/4W 130k 1/4W 130k
1.8k
R45
R32,R33:1/2W270kF
BROWN
R25 1/4W
4.64kF
R26
1/4W
250V 1A
1M 1/2W
680uF
680uF
35V 150uF
1/4W
2k
R19
D12
680 R14
R16 3.3
NR2
1/2W 150k
0.01uF 50V
R3
1/4W
3.9k
1/2W 150k
BCN16
R24010k
R41
1k
R43
1k
10k
R262
1k
R42
50V 1u
C43 100u
C44 0.1u
R223
R222
R224
AVR
AVCC
X0
X1
VSS
P60
P51
P50
P47
P62
P61
P63
P67
P66
P65
P64
P42
P41
RST
P45
P44
P43
P46
AVSS
C98 0.1u
R73 10k
(W)
(Y)
(O)
(B)
C
VSS
P13
P12
P11
P10
P06
P05
P07
P15
P14
P16
P03
P02
P01
P04
P00
VCC
P22
P21
VCC
P20
P17
P23
C48
C49
C51 50V
C50
C41
1000pF
50V
1000pF
50V
25V
0.1uF
50V
1000pF
R225 10k
C62 0.1u
1000P C76
2W 1k
2W 1k
2W 1k
R87 56k
2W 1k
C61 10V
R8A 1W
275V 0.033uF
275V 1uF
BROWN
BLUE
1) use ThermalF
(TERMINALBOARD
GREEN/YELLOW
BLUE
BROWN
BLUE
BROWN
GREEN/YELLOW
)
OARDC)
(UNITC
(TERMINALB
1 – 7
)
OARDB)
(UNITB
(TERMINALB
BROWN
BLUE
GREEN/YELLOW
)
OARDA)
(UNITA
(TERMINALB
R98E
R98F
R98D
R98G
R98A
R98B
R98C
C55F
C55E
C55G
C55D
C55C
C55A
C55B
C86F
C86E
C86D
C86B
C86C
C86H
C86G
R97H
C86A
C67 50V
CHAPTER 2. EXPLANATION OF CIRCUIT AND OPERATION
[1] BLOCK DIAGARM
Power supply circuit
1 A
Fuse
Smoothing circuit Active filter circuit Filter circuit
20 A
Fuse
AEX3M18JR
AC power
CPU
CPU oscillator circuit
DC over voltage detection circuit
Expansion valve A drive circuit
Expansion valve B drive circuit
Expansion valve C drive circuit
4-way valve relay drive circuit
Outdoor fan motor drive circuit
Power transistor module drive circuit
Serial I/O circuit
CPU reset circuit
DC overcurrent detection circuit
AC overcurrent detection
Compressor thermo. circuit
Heat exchanger pipe thermo. circuit
Outdoor temp. thermo. circuit
Suction pipe thermo. circuit
Heat sink thermo. circuit
Unit A thermo. circuit
Unit B thermo. circuit
Unit C thermo. circuit
LED drive circuit
Pump down switch circuit
Wire check switch circuit
Position detection circuit
Thermal fuse circuit
DC power supply circuit
Expansion valve A
Expansion valve B
Expansion valve C
4-way valve
Outdoor fan motor
Power transistor module
3.15 A
Fuse
2 A
Fuse
20 A
Fuse
Compressor
Unit - unit wiring
(AC power and serial signals)
Current transformer
Compressor thermistor (RE) CN8A
Heat exchanger pipe thermistor (OR) CN8A
Outdoor temperature thermistor (G) CN8A
Suction pipe thermistor (BK) CN8A
Heat sink thermistor
Thermistor unit A
(BK)
(BL)
CN8B
Thermistor unit B
Thermistor unit C
LED
(WH)
(BR)
Suction thermistor CN8C
Compressor
Thermal fuse in terminal board CN5
2 – 1
AEX3M18JR
[2] FUNCTIONS
1. FREQUENCY CONTROL
1) AC current peak control
Cooling mode
13.6A
Heating mode
13.6A
2) Prevention control of outdoor heat exchanger overheating
If the temperature of the outdoor heat exchanger exceeds the overheating prevention line 1 or 2 during cooling, the operating frequency is lowered by approximately 5 to 15Hz. After that, the frequency is lowered approximately 5Hz once every 60 seconds or approximately 15Hz once every 120 seconds. When the temperature of the outdoor heat exchanger goes below the overheating prevention clear line, the frequency is raised by approximately 5Hz once every 60 seconds, and normal operation is restored. If the frequency is lowered to minimum frequency without the temperature of the outdoor heat exchanger decreasing and this condition lasts for 1 minute, the compressor will be stopped.
Overheating Prevention line 1
Overheating Prevention line 2
55 °C Lower 5Hz once every
60 seconds
57 °C Lower 15Hz once every 120 seconds
Overheating Prevention clear line 54 °C
3) Prevention control of compressor overheating
If the temperature of the compressor exceeds approximately 108
°C, the operating frequency is lowered approximately 5Hz. After that, the frequency is lowered approximately 5Hz once every 60 seconds. When the compressor temperature drops below approximately 108 °C, the frequency is raised approximately 5Hz once every 60 seconds, and normal operation is restored. If the frequency is lowered to minimum frequency without the temperature of the compressor decreasing, and this condition lasts for 1 minute, the compressor will be stopped.
4) Prevention control of indoor heat exchanger overheating
Two minutes after room several decrease If the temperature of any of indoor heat exchangers exceeds the overheating prevention line
1 or 2 during heating, the operating frequency is lowered to minimum frequency. When the temperature of all of indoor heat exchangers go below the overheating prevention line 1, the frequency is raised by approximately 5Hz once every 60 seconds, and normal operation is restored. If the condition that the frequency is minimum lasts for 2 minutes, the compressor will be stopped.
<when normal >
If the temperature of any of indoor heat exchangers exceeds the overheating prevention line 1 or 2 during heating, the operating frequency is lowered by approximately 5 to 15Hz. After that, the frequency is lowered approximately 5Hz once every 60 seconds or approximately
15Hz once every 90 seconds. When the temperature of all of indoor heat exchangers go below the overheating prevention line 1, the frequency is raised by approximately 5Hz once every 60 seconds, and normal operation is restored. If the condition that the frequency is minimum lasts for 2 minutes, the compressor will be stopped.
57ºC
(62ºC)
54ºC
(59ºC)
47ºC
(60ºC)
44ºC
(57ºC)
Overheating prevention line 1
900 2100
When ON
(When OFF)
5200
Overheating prevention line 2
51ºC
(57ºC)
48ºC
(54ºC)
7200
2 – 2
2. OVER CURRENT PROTECTION
DC over current detection, AC over current detection. To protect against over current due to sudden change in load, the compressor is stopped if 24A DC is exceeded in the DC section. If the set value of
AC current is exceeded in the AC section, the compressor is stopped.
90 seconds after the compressor has been stopped, another starting try will be made. Three retries are allowed. On the fourth retry, a complete stop request signal is sent to the indoor unit, and the outdoor unit will remain stopped until the indoor operation is stopped. DC over current is detected by the power module. AC over current is detected by
CT1, on the outdoor PWB.
Cooling mode
16.0A
Heating mode
16.0A
3. COMPRESSOR PROTECTION CONTROL
If the temperature of the compressor exceeds 113 °C, the compressor is stopped. In this case, the outdoor fan is not stopped until the temperature of compressor drops below 99 °C. In 90 seconds after the compressor is stopped, if the temperature is below 90 °C, another starting try will be made. Three retries are allowed. On the fourth retry, a complete stop request signal is sent to the indoor unit, and the outdoor unit will remain stopped until the indoor operation is stopped.
4. POWER TRANSISTOR MODULE PROTECTION
If the temperature of the heat-sink exceeds 90 °C, the compressor is stopped. In this case, the outdoor fan does not stop, and when the temperature of the heat-sink decreases to 80 °C 180 seconds after operation is stopped, another try will be made. Three retries are allowed. On the fourth retry, a complete stop request signal is sent to the indoor unit, and the outdoor unit will remain stopped until reset is performed. At this time, the 3-minutes delay for control of the outdoor unit will not function; therefore, do not cancel by removing the plug and cutting the power. Also if the temperature of the heat-sink exceeds
100 °C, a complete stop request signal is sent to the indoor unit, and the outdoor unit will remain stopped until reset is performed. At this time, the 3-minutes delay for control of the outdoor unit will not function; therefore, do not cancel by removing the plug and cutting the power.
5. SERIAL SIGNALS
Serial signals consist of all 96-bit signals. If the condition as outdoor unit unable to receive a serial signal from the indoor unit continues for
30 seconds, it closes the expansion valve which corresponds to the room which can not be communicated. If all indoor units can not communicate with the outdoor unit, the compressor is stopped.
6. THERMISTOR OPEN OR SHORT
When compressor, heat exchanger, outdoor thermistor, suction thermistor (CN8A) are in OPEN or SHORT condition, even if they are in the condition which an operation signal is transmitted from indoors, the compressor will not start. If any suction thermistors (CN8C) become
OPEN or SHORT resistance, the protective procedure will work only for the cycle corresponding to the malfunctioning suction thermistor.
7. MISWIRING CHECK
“Mis-wiring check” is conducted by detecting the indoor heat exchanger temp. For example, when the expansion valve for only room A is open, and the wiring is correct, the indoor heat exchanger temp for room A will reduce. If the wiring is incorrect, the indoor heat exchanger temp for a different room will reduce.
8. SAFETY TIME
When the unit is operated by the remote control after the breaker is turned on, the safety device of the compressor will work and the compressor will not operate for 90 seconds.
9. PUMP DOWN SWITCH
When the PUMP DOWN SWITCH (SW1) is pressed for 5 seconds or more, the total A/C system will start its TEST RUN automatically and the compressor frequency will be 48.3 Hz. When operating only the outdoor unit (cooling 48.3 Hz fixed mode) To make only the outdoor unit run in cooling mode, and apply a voltage of 230 V AC to N and L on the terminal board and push the pump down switch. (SW1) (Avoid operating the outdoor unit alone for long periods of time.)
10. CONTROL OF COMPRESSOR OR AND EXPAN-
SION VALVE
For 90 seconds after turning on the AC power, the compressor will not be activated even if indoor units request the compressor to do so. If the compressor receives a request from one or more indoor units after
90 seconds have passed, it will be turned on and the expansion valve corresponding to the requesting indoor unit will be opened. When the indoor unit of a room requests for the cooling operation to the outdoor unit and it runs responding to the request, requests for the heating can't be accepted if the indoor units in other rooms send individual requests. If the indoor unit in another room sends a request for the heating operation, the operation lamp and timer lamp of the indoor unit in that room start flashing in turn to inform that the unit is in the standby mode. If the operation in one room is stopped while the indoor unit in another room is in the stand-by mode, the operation mode requested by the indoor unit which is now in the stand-by mode will be accepted.
At this time, the compressor will be temporarily stopped to switch the four- way valve and restart after 90 seconds. During the cooling or dry operation, the expansion valve corresponding to the indoor unit that is not running is closed. Therefore, the refrigerant will not flow into those units However, if the heating operation is in progress, it is possible that it flows into indoor units which are out of operation depending on the cycle conditions. As a result, the indoor exchanger may be heated up even if it is not activated. This is not abnormal. When the operations in all rooms are stopped, the compressor is off and the expansion valves in all rooms are fully opened.
11. DEFROST OPERATION
1) Overview
Defrosting begins during heating if the conditions for compressor operation time and outdoor heat exchanger temperature are met.
When defrosting begins, the indoor and outdoor fans stop. Defrosting stops when the temperature of the outdoor heat exchanger goes above approximately 15 °C or defrosting time exceeds 10 minutes.
Defrost mask time
Defrost mask time
Defrost mask time
Heating begins
Defrosting
Max. 10 min.
Defrosting
Max. 10 min.
2) Defrosting
If the compressor operation time is more than 20 minutes in the heating mode and the outdoor air temperature and outdoor heat exchange temperature satisfy the defrosting conditions, the defrosting operation is started. When the defrosting operation is started, the indoor fan starts to run intermittently. When the outdoor heat exchanger temperature reaches approx. 15 °C or above or when the defrosting time exceeds 10minutes, the defrosting operation is quit.
AEX3M18JR
More than
20 min.
More than
20 min.
More than
20 min.
.
Heating operation start
Defrosting
Max. 10 min.
Defrosting
Max. 10 min.
3) During defrosting
When defrosting begins, the compressor stops. Approximately 1 minutes later, the compressor reactivates in the refrigeration cycle, and the outdoor heat exchanger is defrosted. Each mode is as follows:
The outdoor fan is s topped
The operating frequency is as shown in the table below.
The indoor fan is s topped.
All expansion valve are open.
for 5 minutes 3900 rpm
after that 3700 rpm
4) Defrost stop
When defrosting time exceeds 10 minutes When the temperature of the outdoor heat exchanger rises above approximately 15 °C
Defrost stop is determined by either of the above conditions, and the compressor is stopped. At the same time, the outdoor fan go
ON. The compressor is reactivated in the heating cycle 1 minutes after it was stopped, and normal control resumes.
12. Power factor module Output voltage
If a voltage error over 450V is detected at power factor module output voltage, the compressor is stopped for 3 minutes. In this case, the outdoor fan does not stop for 3 minutes, and another try will be made.
Three retries are allowed. On the fourth retry, a complete stop request signal is sent to the indoor unit, and the outdoor unit will remain stopped until reset is performed. At this time, the 3 minutes delay for control of the outdoor unit will not function; therefore, do not cancel by removing the plug and cutting the power.
2 – 3
AEX3M18JR
[3] ACTIVE FILTER CIRCUIT
This circuit uses Active Filter Module and IPM as the figure below for the high efficiency operation of compressor.
Choke coil Active Filter
AC
Noise filter circuit
Rectification circuit
Sine wave current
ON/OFF
Control source
+
Voltage raise signal
Compressor
Driving signal
IC1
IPM
Positional detection
IPM
Control source
Compressor
1. Active Filter
In the case the direct current is obtained by the diode bridge and smooth capacitor from the commercial power source, the current wave shape will be the pulse shape at the peak of the voltage wave shape as shown in the figure below. For this reason, the harmonic current will be generated and at the same time the power factor will be deteriorated. While monitoring the AC input voltage in the control circuit, in order to be the same phase and wave shape as this voltage wave shape, IGBT is made ON/OFF by the carrier frequency of approximately 20 kHz. By adoption of this Active Filter, the current wave shape can be made to the sine wave synchronized to the commercial power source and the power factor can be made to almost
99%. As a result of this, reactor can be disused. Active Filter works for the improvement of power factor and as the countermeasures for the harmonic current.
Power-supply voltage
(50Hz)
Current waveform
(Before)
Current waveform
(Active Filter)
2. Active Filter Voltage Raise Circuit
The IGBT in the figure below is the switching transistor of the Active Filter. By adding ON signal to the gate of IGBT from the control IC, IGBT turns
ON and the collector current Ic flows. This current flows from the + side of the diode bridge DB to the Choke coil, the - side of the diode bridge DB through IGBT from the Choke coil L. At this time, energy is stored in the choke coil L. Next, when gate signal of IGBT turned OFF, IGBT will be turned
OFF and the energy stored in L during the ON time of IGBT will be discharged through the diode D, electrolytic capacitor C, load, primary side and the
+ side of DB. Assuming the input voltage of Active Filter (voltage between + and - of DB) as Ei, the output voltage (voltage at the both ends of smooth capacitor) as Vo, switching cycle of IGBT as T and ON time of IGBT as ton, the voltage between collector emitter of IGBT Vs will be as follows;
Vs= 0 (during ON of IGBT: ton)
Vs= Vo (during OFF of IGBT: T-ton)
Here, assuming no loss in L and IGBT, average value of Vs turns equal to Ei,
Ei = (T-ton)/T x Vo
Therefore
Vo = T/(T-ton) x Ei
As ton is a smaller value than T, output voltage Vo will be higher than input voltage Ei.
2 – 4
AEX3M18JR
3. Active Filter Driving Electronics Circuit
At the operation of compressor, the microcomputer (IC1), as the 50th pin gets “H”, will turn the transistor Q4 ON through the transistor Q3. By this,
18V is supplied to the 3rd pin of connector BCN13 of the Active Filter and the Active Filter will be turned ON.
4. Protection Circuit of Active Filter
In order to prevent from the destruction of Active Filter due to the excessive over output voltage of Active Filter, the Active Filter will be turned OFF immediately at the abnormal output voltage by monitoring the output voltage. At the same time, the operation of compressor will be stopped. Detection circuit of the abnormal voltage detects the abnormal voltage by inputting the output voltage of Active Filter to the 4th pin of comparator IC (IC5) at the divided voltage by the resistors (R31, R32 and R33) and comparing with reference voltage. When the output voltage of Active Filter reaches 450V or higher, the 4th pin of IC5 will be higher than the reference voltage at the 5th pin, the output of comparator will be reversed (H →L), the L signal will be entered at the 52nd. pin of microcomputer (IC1) and the operation of the Active Filter will be stopped.
IC1
52
5V
18V
R36
1M
2
3
-
+
4 IC5
5
12
0V
R34
9.53KF
R35
34.8KF
C57
0.1u
50V
0V
C56
0.1u
50V
R33
270KF
R32
270KF
DC
Voltage
R31
4.64KF
0V
0V
2 – 5
AEX3M18JR
[4] EXPLANATION OF IPM DRIVE CIRCUIT
The power supply for the IPM drive, and the shunt resistor for over current detection, etc., are provided out of the IPM (in control PWB).
1. IPM drive power supply circuit
The power supply for driving the upper-phase IGBT (HU, HV, HW) drive employs a Bootstrap system.
The 15-V power supply for the lower-phase IC is provided by the control printed circuit board (PWB).
1. Brief explanation of Bootstrap system (single power drive system)
To supply power to the upper-phase IC, the microcomputer (IC1) turns ON the lower-phase IGBT (LU, LV, LW).
It results in a charging current that flows through the electrolytic capacitor in each upper-phase IC input and charges the Bootstrap capacitor up to
15V voltage.
The power supply for the subsequent stages is stored when the lower-phase IGBT is ON in common drive control of the compressor.
Initial charge period
Charging current group
Bootstrap capacitor
P(Vcc)
(HU,HV,HW)
HVIC
V
DB
U,V,W,
High-voltage-withstanding, high-speed recovery diode
V
D
(LU,LV,LW)
LVIC
N-side
IGBT
V
CIN
( n
)
N(GND)
Bootstrap circuit
2. DC over current detection circuit
When a current about 24A or higher flows through the shunt resistor (R100) on IPM printed circuit board (PWB), the voltage on this resistor is input to
IPM CIN pin (16). Then, the gate voltage of the lower-phase IGBT (LU, LV, LW) inside the IPM turns OFF to cut the over current off. At the same time, an L output which lasts about 1.8 ms is generated from IPM Fo pin (18), and it results in an L level input to over current detection input pin (53) of the microcomputer (IC1) and then turns OFF the compressor driving signal output (IC1 from pins (65) to (70)) to the IGBT gate.
SET
Protection circuit status
(Lower phase)
Internal IGBT gate
RESET a1
About 24A
SC
Output current Ic (A)
Sense voltage relative to shunt resistance
SC reference voltage
Delay by CR time constant circuit
About 1.8 ms
Error output Fo
2 – 6
AEX3M18JR
3. 120
° energizing control (digital position detection control)
This control system detects the digital position detection signal and adjusts the rate of acceleration/deceleration accordingly. The motor's induced voltage waveform is input to the comparator in the form of PWM-switched pulse, and a position detection signal is generated as a reference voltage which is equal to 1/2 of 370 VDC. However, since there is no induced voltage waveform when the PWM waveform is OFF, the microcomputer works in an internal processing so that detection is enabled only when it is ON. Based on the position signal detected, actual PWM waveform output timing is determined. Since it does not use a filter circuit, the accuracy of detection. The microcomputer works in an internal processing to eliminate spiky voltage during the regenerative process. Furthermore, even if the induced voltage is low, position detection is still possible, and it allows sensor-less operation at low rotation speed in the initial stage of operation. These reduce the starting current and improve reliability of IPM.
Terminal voltage waveform
Spiky voltage
(cancelled)
Reference voltage
(1/2 of DC voltage)
Comparator output waveform
(Position signal waveform)
4. 180
° energizing control
This is the control system to moderate the speed by the current phase difference for higher efficiency and lower noise of the compressor. The current phase difference control is the control system paid attention to the interrelation between efficiency and phase gap generated by the applied voltage of motor and current in the coil of motor as shown in the figure below.
This control is the forced magnetization system independent of the location of rotor, detecting the phase difference between driving voltage phase and line current phase flowing in motor coil, and controls the modulation rate data to get the phase difference at the best efficiency.
Motor voltage
Motor current
Best timing Ჷ (
Ტ Difference of current and voltage peak
Უ
Voltage /Current phase difference
Concept chart of the current phase difference control
5. DC Current Detection Sensor Circuit
Control of current phase difference is made by reading in the phase difference generated at the both edges of shunt registor (R100) by the compressor electrifying current on the PWB through the Op-amp (IC9) to the microcomputer. This is a control to modulate up to the phase with the best efficiency by comparing the phase of this input current, so called compressor electrifying current, with the compressor driving voltage. In the case that phase difference between motor voltage and current is large (current delay is large), the control will be made by lowering the compressor modulation rate data (compressor effective value).
IPM
P
FUSE 101
250V 20A
C121
630v
0.33
Ǵ
S
CIN
C119
1000p
ZD101
N
R113 18KF
R100
0.02
Y
Z
FC1
TU
TV
TW
R201
100KF
R
IC1
5V
D8
C96
1000P
R200
1K
C97
0.1μ
15V
1
4
-
+
8
IC9
2
3
0V
Inverter current detection circuit
R202
20KF
R203
2.0KF
5V
R204
200KF
Y
Z
R205
200KF
0V
C
2 – 7
CHAPTER 3. FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES
[1] PROTECTIVE FUNCTIONS AND OPERATIONS
NO.
Function
Description
Operation
Detection time Restart condition Restart time
In door
1
2
3
DC over current
AC over current
Compressor overheat prevention control
Compressor is stopped if a current approximately 24A or more flows in the power transistor module.
Lowers the operating frequency if the compressor AC current exceeds set value
(16.0A). Stops the compressor if the current exceeds at minimum frequency.
Lowers the operating frequency if the temperature of the compressor thermistor (TH1) rises above 108 °C. Compressor is stopped if the thermistor stay above 108 °C for 2 minutes at minimum frequency.
During compressor operation
During compressor operation
During compressor operation
Automatically restarts after safety time (180 seconds)
Automatically restarts after safety time (180 seconds)
Automatically restarts after safety time (180 seconds)
4 times
4 times
No limit
Yes
Yes
No
4
Compressor high temperature error
Compressor is stopped if the compressor thermistor is above 113 °C (Or when TH1 shorts)
During compressor operation
Automatically restarts when thermistor (TH1) temperature falls below
99 °C (approximately 30 minutes)
4 times Yes
5
6
7
8
9
10
11
12
13
Outdoor heat exchanger overheat prevention control
Thermistor short
Thermistor open
AC abnormal current
Serial signal error
Miswiring check error
Indoor heat exchanger overheat prevention control
Power factor module (Active Filter) over voltage error
Power factor module (Active Filter) low voltage error
Lowers the operating frequency if the temperature of the outdoor heat exchanger rises above 57 °C during cooling. Stops the compressor if the temperature stays above 57 °C for 2 minutes at minimum frequency
Compressor ia stopped, if heat exchanger or outdoor thermistor shorts. Close the expansion valve of the corresponding room, if some suction thermistor shorts.
Compressor is stopped, if compressor or heat exchanger or outdoor thermistor opens.
Close the expansion valve of the corresponding room, if some suction thermistor shorts. opens.
Compressor is stopped, if the operating frequency is above 70Hz and the compressor current is below 0.8A.
INDOOR
If open, while timer LED blinks, operation is continued. If short, operation is continued.
OUTDOOR
Closes the expansion valve of the corresponding room if the outdoor unit does not receive a serial signal from one or more indoor unit for 30 seconds.
Compressor is stopped, if the outdoor unit does not receive a serial signal from all indoor units.
Compressor is stopped, and miswiring check operation ends.
Lowers the operating frequency if the temperature of any of indoor heat exchanger rises high temperature during heating.
Stops the compressor if the temperature stay high for 2 minutes at minimum frequency.
Compressor stops if DC voltage is 450V or higher.
Compressor stops if DC voltage is 280V or lower.
During compressor operation
When the room is activated turns
ON and the compressor starts.
When the room turns ON and the compressor starts.
During compressor operation
During operation
During miswiring operation
During compressor operation
During compressor operation
During compressor operation
Automatically restarts after safety time (180 seconds)
Operation OFF
Operation OFF
Automatically restarts after safety time.(180 sec.)
Automatically restarts as soon as the serial communication becomes possible.
Miswiring check operation will not restart automatically.
Automatically restarts after safety time.(180 sec.)
Automatically restarts after safety time.(180 sec.)
Automatically re-starts after safety time.(180 sec.)
No limit
1 time
1 time
4 times
No limit
4 times
No limit
4 times
4 times
No
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Out door
Yes
Yes
No
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
3 – 1
NO.
Function
Description
Operation
Detection time Restart condition Restart time
In door
14
15
Power factor module (Active Filter) clock error
Outdoor unit DC fan error
When power source frequency cannot be determined (at startup) or when power source clock can not be detected for 1 continuous second (at startup).
Operation stops if there is no input of rotation pulse signal from outdoor unit fan motor for
30 seconds.
At compressor start up, when in operation.
When outdoor unit fan is in operation.
Compressor continues operation without stopping.
Operation OFF or ON.
16
DC compressor rotation error
Operation stops if rotation of compressor is abnormal.
During compressor operation
Automatically restarts after safety time.(180 sec.)
17
IPM overheat prevention control.
IPM high temperature error
The compressor stops if the temperature of
Heat sink exceeds 90 °C.
During compressor operation
Automatically restarts after safety time.(180 sec.)
18 Thermal fuse error
When thermal fuse in the outdoor terminal board below.
Operation OFF
✩1 The outdoor unit restarts four times before the indoor unit error is displayed (complete shutdown).
None
Yes ✩1 Yes
8 times
No limit
1 times
Yes
Yes
No
Yes
Out door
Yes
Yes
Yes
No
Yes
[2] TROUBLESHOOTING GUIDE
1. SELF-DIAGNOS IS FUNCTION AND DISPLAY MODE
1) To call out the content of the self-diagnosis memory, hold down the emergency operation button for more than five seconds when the indoor unit is not operating.
a) According to the content of the self-diagnosis memory, the Operation LED (main category) and the Plasmacluster Ion LEDs (sub-category) flash in sync with the Timer LED on the indoor unit.
b) In the event a complete shutdown occurs due to a malfunction, the Operation LED (red), Timer LED (yellow), Plasmacluster Ion LED (blue) flash to indicate the general information of the generated malfunction.
c) If the power cord is unplugged from the AC outlet or the circuit breaker is turned off, the self-diagnose is memory loses the stored data.
2) Display of detailed self-diagnosis result with main category and sub-category indications When malfunction information is called out, the main category and sub-category of the self-diagnose is result are indicated by the Operation, Timer, and Plasmacluster Ion LEDs on the indoor unit.
*1: Example of self-diagnosis result displayed on indoor unit: Suction thermistor open-circuit error
Timer LED [yellow]
Operation LED [red]
Main category Sub-category
Malfunction No.
Basic flashing cycle due to error
1 sec 1 sec 1 sec 5 sec
ON
OFF
Figures in ( ) indicate numbers (binary notation) assigned based on the flashing sequence.
ON
OFF
Flashing for main category indication
Plasmacluster Ion LED [blue] Flashing for sub-category indication
*2: The self-diagnosis display function of the outdoor unit indicates the error information by flashing LED1 on the outdoor unit according to the content of self-diagnosis.
The self-diagnosis display function of the outdoor unit is active only for about 3 to 10 minutes after self-diagnosis is performed during operation, and the display returns to normal condition after this display period.
The content of self-diagnosis cannot be called out by the self-diagnosis display function of the outdoor unit.
Example of self-diagnosis display on outdoor unit : Compressor high-temperature abnormality
0.5 sec 0.5 sec 0.5 sec 0.5 sec 0.5 sec 0.5 sec 0.5 sec 0.5 sec 0.5 sec 0.5 sec 0.5 sec 0.5 sec 0.5 sec
ON
OFF
3 – 2
3 – 3
3 – 4
CHECK METHOD
CAUTION: CHECKING PRINTED CIRCUIT BOARDS (PWB)
Non-insulated control circuit
The GND terminals of the low-voltage circuits (control circuits for microcomputer and thermistors and drive circuits for expansion valve and relays) on the control printed circuit board (PWB) are connected to the compressor drive power supply (370-VDC negative terminal).
Therefore, exercise most caution to prevent electric shock.
If a measuring instrument used for the test is grounded, its chassis
(ground) has the same electric potential as the 0-V probe. Since noninsulated circuits have the following voltage potential difference from the ground, connection of the grounding wire results in a short-circuit between the 0-V line and the ground, thus allowing an excessive current to flow to the tester to cause damage.
Do not touch the cabinet or bring metal parts into contact with the cabinet.
Danger!!
Do not connect the grounding wire.
If the sheaths of the thermistor lead wires or expansion valve lead wires inside the outdoor unit become damaged due to pinching by the front panel or other metal parts or contacting a pipe, a high voltage can flow and destroy the circuits. To prevent these problems, carefully conduct assembly work.
Reason
The oscilloscope (chassis ground) has the same electric potential as the 0-V probe. The entire electronic control section of the outdoor unit has a voltage potential difference from the ground. When the oscilloscope is setup, the 0-V line and the ground voltage (ground) will be short circuited, resulting in an excessive current flow to cause damage to the oscilloscope or indoor electric circuits.
CAUTION: when attaching or removing the board
When operating only the outdoor unit (cooling 48.3 Hz fixed mode) to make the outdoor unit run in cooling mode, apply a voltage of 220 ~
240V AC to L and N on the terminal board and push the pump down switch (SW1). (Avoid operating the outdoor unit alone for long periods of time.)
Figure 2 Temperature properties of outdoor thermistors
TH2 : Heat exchanger pipe thermistor (CN8A 3 - 4 )
TH3 : Outdoor temp. thermistor (CN8A 5 - 6 )
TH4 : Suction thermistor (CN8A 7 - 8 )
TH6 : Thermistor unit A (CN8C 1 - 2 )
TH7 : Thermistor unit B (CN8C 3 - 4 )
TH8 : Thermistor unit C (CN8C 5 - 6 )
TH1 compressor thermistor
(CN8A 1 - 2 )
1
Connector
CN8A
8
500k
400k
300k
25ºC resistance
45 k
200k
100k
5.78k
3.06k
4.17k
2.28k
1.72k
0
-20 0 20 60 80 100 120
Temperature (ºC)
40k
30k
20k
10k
1
0ºC resistance
14.5 k
25ºC resistance
4.431 k
6
Connector
CN8C
TH2 - TH4
TH6 - TH8
0
-20 0 20 40
Temperature (ºC)
60
3 – 5
To measure the resistance, first remove the connector from the board.
Thermistor
Compressor thermistor
Heat exchanger pipe thermistor
Outdoor temp. thermistor
Suction thermistor
Thermistor unit A (suction)
Thermistor unit B (suction)
Thermistor unit C (suction)
No.
TH1
TH2
TH3
TH4
TH6
TH7
TH8
Connector
CN8A
CN8A
CN8A
CN8A
CN8C
CN8C
CN8C
Color
Red
Orange
Green
Black
Blue
White
Brown
Connector pin
No. 1 to 2
No. 3 to 4
No. 5 to 6
No. 7 to 8
No. 1 to 2
No. 3 to 4
No. 5 to 6
Figure 3 Temperature properties of heatsink thermistor
500
400
300
Thermistor
Heatsink
Signal Color
Black CN8B
To measure the resistance, first remove the connector as shown at right.
Heatsink thermistor
TH5 (black)
25ºC resistance 50k
200
6.14k
100
12.3k
0
-20 0 20 40 60
Temperature (ºC)
2. How to distinguish the defective parts
1. When all rooms are not cooled
Are the timer lamps of the indoor units in all rooms flashing ?
No
Press the OPERATION button to start operating the air-conditioner. (One-room operation ON)
(Set the cooling mode to 18ºC)
Yes
80 100
3.25k
1
Tester
3
The cooling cycle is abnormal.
Yes Is the compressor of the outdoor unit operating ?
No
Are the timer lamps of the indoor units in all rooms flashing ?
No
Yes
Check the pressure.
Check that the power between the terminal board " N " and " 1 " of the indoor unit is AC 230V,
50Hz.
Check the failure symptom with the failure diagnosis mode.
(Check the failure with the outdoor unit.)
TO
A
Repair the wiring between the units.
3 – 6
3 – 7
2. When one room is not cooled (other rooms are cooled)
Is the timer lamp of the indoor unit in the room not cooled flashing ?
Yes
No
Press the OPERATION button to start operating the air-conditioner.
(Set the cooling mode to 18ºC.)
Is the timer lamp of the indoor unit in the room not cooled flashing ?
No
No
Check that the power between the terminal board "N" and "1" of the indoor unit is AC 230V.
Yes
Yes
Check the failure symptom with the failure diagnosis mode.
Short circuit of the thermistor error
Open circuit of the thermistor error
Replace the indoor control PWB.
Repair the wiring between the units.
Abnormal fan motor of indoor unit
Open circuit of serial signal line
Short circuit of serial signal line
Is the resistance value of the thermistor for UNIT A (TH6), UNIT B
(TH7) or UNIT C (TH8)
Yes
Is the resistance value of the winding in the fan motor ?
No
Yes
Is the wiring between the units connected by mistake or broken ?
No
Yes
No
Replace the thermistor.
Replace the indoor fan motor.
Repair the wiring between the units.
Replace the outdoor control PWB or the expansion valve (UNIT A) or the expansion valve (UNIT B) or the expansion valve (UNIT C)
Replace the indoor control PWB.
3. When all rooms are not heated
Does the air get cooler in the cooling operation mode?
No
Yes
Refer to 1 All rooms are not cooled.
Yes
Press the ON switch on the remote control to run the air conditioner.
Set the temperature to 32ºC in the heating mode and start operation.
No
Is the outdoor compressor running?
Yes
No
Check the four-way valve. Has the cycle been switched?
No
To
A
The heating cycle is normal.
Pressure check
Is AC230V applied between the connector
(CN4) 1 and 3 of the 4-way valve ?
No
Yes
Replace the 4-way valve.
Replace the outdoor control P.W.B..
3 – 8
AEX3M18JR
CHAPTER 4. REFRIGERATION CYCLE
[1] REFRIGERATION SYCLE
Service Manual
UNIT C
(3)
Heat exchanger
UNIT B
(3)
Heat exchanger
UNIT A
(3)
Heat exchanger
INDOOR UNIT
Expansion valve C
STOP valve (Liquid)
(1)
Expansion valve B
(4)
Expansion valve A
STOP valve (Gas)
OUTDOOR UNIT
Refrigeration Cycle
UNIT C
UNIT B
(2)
UNIT A
INDOOR UNIT
Cooling
1. Cycle temperature and pressure in stop valve heating
Flow of Refrigerant
Running unit
AY-XPM7FR &
AY-XPM7FR &
AY-XPM7FR
(3 units)
AY-XPM12FR
(1 unit)
No
(1)
(2)
(3)
(4)
Stop valve pressure (gas side)
Frequency
(1)
(2)
(3)
(4)
Stop valve pressure Frequency
Frequency
Cool (MAX)
86
45
12
15
1.04MPa(abs)
100Hz
80
38
10
11
0.88MPa (abs)
70Hz
OUTDOOR UNIT
Operation Mode
Cool (Test run)
70
Heat (MAX)
78
41
15
19
1.21MPa(abs)
-1
35
0
2.53MPa(abs)
70Hz
67
37
13
120Hz
89
1
42
17 2
1.10MPa (abs) 3.52MPa (abs)
40Hz 90Hz
Heat (Test run)
50
2
27
3
1.97MPa(abs)
50Hz
59
3
25
6
2.38MPa (abs)
40Hz
4 – 1
AEX3M18JR
Running unit
AY-XPM9FR
(1 unit)
AY-XPM7FR
(1 unit)
No
(1)
(2)
(3)
(4)
Stop valve pressure Frequency
Frequency
(1)
(2)
(3)
(4)
Stop valve pressure Frequency
Frequency
Cool (MAX)
74
37
10
13
0.96MPa (abs)
50Hz
69
37
11
15
1.02MPa (abs)
40Hz
Operation Mode
Cool (Test run)
63
Heat (MAX)
82
38
14
19
1.17.MPa (abs)
30Hz
62
37
14
20
1.17MPa (abs)
20Hz
2
38
4
3.20MPa (abs)
70Hz
73
3
33
5
3.00MPa (abs)
55Hz
Standard conditions
Cooling
Heating
Indoor side
Dry-bulb temp. ( °C)
27
Outdoor side
Relative humidity (%) Dry-bulb temp. ( °C)
47 35
Relative humidly (%)
40
20 – 7 87
2. PERFORMANCE CURVES
NOTE: Total cooling capacity and total input with 3 units running.
(Running frequency: 110HZ)
1800
1600
1400
1200
1000
(Running frequency: 105HZ)
17
16
15
14
13
1800
1600
1400
1200
1000
8.0
7.0
6.0
5.0
6.0
5.5
5.0
4.5
24 26 28 30 32 34 36 38 40 42 44
Outside air temp. (ºC)
At Cooling for AY-XPM7FR (for AE-X3M18JR)
-6 -4 -2 0 2 4 6 8
Outside air temp. (ºC)
10 12
At Heating for AY-XPM7FR (for AE-X3M18JR)
38
36
34
32
30
28
26
24
Heat (Test run)
53
4
26
7
30MPa (abs)
20Hz
50
4
27
7
2.00MPa (abs)
25Hz
[2] REFRIGERANT PIPE INSTALLATION WORKS
1. Piping
Max. piping length A ------------------ 25m
Min. piping length A ------------------ 3m
Max. total piping length of all unit --- 50m
Max. level difference B -------------- 10m
• If total piping length exceeds 30m, add 15g of refrigerant per 1m.
• When the outdoor unit is placed at a higher level than the indoor units, provide a trap near the hose’s lead-in port.
INDOOR UNIT
B
A
OUTDOOR
UNIT
TRAP
B
2. Air-removing
Use an adapter for preventing vacuum pump oil from flowing back to the gauge manifold hose. ON/OFF operation of the vacuum pump should be made by the adapter switch.
1) Remove both valve shaft caps of the stop valves.
2) Remove the service port cap of the stop valve (gas side).
3) Connect the gauge manifold hose to the service port and the vacuum pump. Be sure that the hose end to be connected to the service port has a valve core pusher.
4) Open the gauge manifold valve and operate the vacuum pump for
10-15 minutes. Make sure the compound gauge reads -0.1MPa (-
76cmHg).
5) Close the gauge manifold valve.
6) Turn off the vacuum pump.
7) Fully open the stop valve (liquid side) with hexagon socket screw key. Turn all the way up to contact.
4 – 2
AEX3M18JR
8) Fully open the stop valve (gas side) with hexagon socket screw key. Turn all the way up to contact.
9) Disconnect the gauge manifold hose from the service port.
10)Replace the service port cap and both valve shaft caps tightly. Turn until the torque suddenly increases. Now tighten a 1/6-turn more.
NOTE: * Use a gauge manifold and hoses exclusive for R410A.
* After air removal, check the tube connections for gas leak using a leakage detector or soapy water. Regarding leakage detector, use high-sensitivity type designed specially for R410A.
Stop valve
(gas side)
Stop valve
(liquid side)
Service port
Vacuume pump adapter
Hexagon socket screw key
4 mm
Compound gauge
Lo Hi
Hose
Gauge manifold
Service port
Valve shaft cap
OPEN
3. Pump down
(Pump down is adopted in the case of unit removal for reinstallation, abandonment, repair etc.) Pump down is to collect the refrigerant into the outdoor unit by control of the stop valves and the compressor.
1) Turn the circuit breaker on.
2) Check that all LED (LED1, 2, 3) on the display board unit are flashing synchronously in a slow (one flash per second) cycle.
3) Stop the air conditioner operation.
4) Remove both valve shaft caps of the stop valves.
5) Press the PUMP DOWN SWITCH (SW1) on the display board unit for 5 seconds or more. The indoor/outdoor unit will start operation in the pump down mode. (the OPERATION lamp on the indoor unit will flash and three BEEP will be emitted.)
6) After 5 – 10 minutes, fully close the stop valve (liquid side) by turning the hexagon socket screw key clockwise.
7) After 2 – 3 minutes, immediately close the stop valve (gas side) fully.
8) Press the PUMP DOWN SWITCH (SW1) on the display board unit for 5 seconds or more. The operation of indoor/outdoor unit will stop.
9) Replace the service port cap and both valve shaft caps tightly.
NOTE: Wait more than 90 seconds after finishing pump down, and turn off the circuit breaker off.
CAUTION: Execute the pump down operation using with PUMP
DOWN SWITCH. The compressor might stop on the way if pump down is operated while cooling operation mode without PUMP DOWN SWITCH.
4. MISWIRING CHECK
Miswiring check must be performed after installation, reinstallation and service. This multi-type air conditioner is designed with a WIRE
CHECK SWITCH on the outdoor unit, and miswiring of unit-to-unit wiring will be self-corrected by microcomputer. Miswiring check may not be performed when the outdoor temperature is below 5 °C.
1) Complete the unit-to-unit wiring/piping and perform the air removing of the pipes. Turn the electrical circuit breaker ON. Before turning the circuit breaker ON, make sure no one is working on the indoor units installation. Electrical shock or injury may occur.
2) Check that all LED (LED1, 2, 3) on the display board unit are flashing synchronously in a slow (one flash per second) cycle. If either one or more of all LED is/are kept lighted on, check and correct the wrong wirings among, N, 1, 2, terminals so that all LED will flash slowly, showing normal condition.
3) Press the WIRE CHECK SWITCH (SW2) on the display board unit for 5 seconds or more. The flashing of all LED will change. Mis-wiring (mis-piping) check will start and the indoor and outdoor units will start operating. (The red operation lamp on the indoor unit will flash, and three BEEP will be emitted.) Miswiring of unit-to-unit wiring will be self-corrected.
4) Wrong piping works cannot be corrected, and will be detected as an error. When an error is detected during checking, all LED will show triple flash for eight times. The indoor and outdoor operation will stop. Turn the circuit breaker OFF and check and correct the miswiring (mispiping)*. After correction, return to step 1 and repeat the miswiring (mispiping) check again. If error is still detected, or other types of LED signal should be indicated, please contact a service technician. (Refer to wiring diagram attached inside the outdoor unit cabinet for self diagnosis signal.)
5) All LED (LED1, 2, 3) will flash synchronously in a slow (one flash per second) cycle when miswiring (mispiping) check is completed with no error detection (3–6 minutes), and the operation of indoor and outdoor units will stop. (The red operation lamp flashing on the indoor unit will go off.)
6) Place the control box cover back in the reverse order.
*Correction points on error detection a) Are all piping the total multi air conditioner system connected?
b) Are the stop valves open?
Stop valve
(gas side)
Stop valve
(liquid side)
4 – 3
AEX3M18JR
CHAPTER 5. DISASSEMBLING PROCEDURE
[1] OUTDOOR UNIT
CAUTION: DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE ANY SERVICING.
1. PROCEDURE
1. Remove the 2 screws fixing the pipe cover then remove it.
4. Remove the 4 screws fixing the fan guard then remove it and remove the 7 screws fixing the cabinet then remove it.
3 screws are at the left.
2 screws are at the right.
1 screw is at the front.
1 screw is at the rear.
2. Remove the 3 screws fixing the control box cover then remove it.
5. Remove the 3 screws fixing the control box angle then remove it.
3. Remove the 6 screws fixing the side cover R then remove it.
CAUTION: DISCHARGE ELECTROLYTIC CAPACITOR BEFORE
TOUCHING THIS CAPACITOR OR OTHER COMPO-
NENTS OR WIRINGS.
6. Cut the 2 wire fixing bands.
5 – 1
AEX3M18JR
7. Disconnect the 9 connectors.
Expansion valve (CN12A, CN12B, CN12C): 3pcs.
Thermistor (CN8A, CN8B, CN8C): 3pcs.
Fan motor (CN3): 1pc.
Reverse valve coil (CN4): 1pc
Display board unit (CN11): 1pc
NOTE: Caution to connectors position especially the expansion valves, when reinstalling
10.Unfasten the nut fixing the propeller fan then remove it.
Remove the 5 screws fixing the control box then remove it.
1 screw is at the right.
4 screws are at the front.
NOTE: How to disassemble of control box assembly is shown in step
15 - 25.
8. Remove the compressor cover B.
Disconnect 5 terminals.
Coil for PFC1 (L1): 2pcs (White)
Compressor: 3pcs (Red, White and Orange)
NOTE: Caution to connectors position especially the compressor, when reinstalling.
11.Remove the 2 screws fixing the fan motor angle assembly then remove it with lifting up as unhook the hook on the base pan.
Remove the 3 screws fixing the fan bulkhead assembly then remove.
9. Remove the 13 screws fixing the rear cabinet then remove it.
1 screw is at the left.
5 screws are at the right.
7 screws are at the rear.
12.Remove the 4 screws fixing the fan motor then remove it.
5 – 2
13.Remove the 3 screws fixing the coil for PFC then remove it
NOTE: When the coil re-install, silicone grease must be paste to the back face of the coil.
AEX3M18JR
How to disassemble the control box assembly
16.Cut the 3 wire fixing bands.
Disconnect the 7 connectors. [CN6, CN15, CN9A, CN16, CN17,
CN5, CN101 (IPM)]
14.Remove the 3 strings on the compressor cover A then remove it
Lift up the Control Board Unit (PWB) and remove it.
Control board unit
15.Remove the 6 thermistors on copper tube.
NOTE: Caution to position when re-installing.
TH8 (BROWN)
(Just on the tilted pipe)
TH7 (WHITE)
(Just on the horizontal pipe)
TH6 (BLUE)
(Just on the horizontal pipe)
TH3 (GREEN)
TH4 (BLACK)
Install this SHAORT-CIRCUIT CONNECTOR in a new
CONTROL PWB at CONTROL PWB exchange.
17.Disconnect the 2 terminals (Blue and Brown).
And Remove the 3 screws fixing the terminal board angle assembly then turn it inside out.
Blue Brown
TH2 (ORANGE)
Refer to page 5-5 (Mounting position of thermistors and expansion valves)
5 – 3
AEX3M18JR
18.Disconnect the 5 terminals (T1, 2, 4, 6, MRY1) and 3 connectors
(CN14, CN2, CN13 (Active Filter)).
21.Remove the 2 screws fixing the heat sink cover then remove it.
19.Remove the 3 screws fixing the power supply board unit (PWB).
22.Cut a wire fixing board.
20.Disconnect 2 connectors (CN1,CN9). Then lift up the relay board unit (PWB) and remove it.
23.Remove the each of 4 screws fixing the heat sink.
NOTE: Confirm two kinds of spacer put in 4 holes have clung.
Seal the 4 burring holes with silicone sealer before reinstalling.
5 – 4
24.Disconnect the 5 terminals (TP, TU, TV. TW, TN) and 1 connector
(CN114) on the IPM PWB. And Remove the 2 screws fixing the
IPM PWB and remove it.
NOTE: When the IPM PWB re-install, silicone grease must be paste to the back face of the IPM.
AEX3M18JR
25.Disconnect the 6 terminals (P, Io, +, -, L1, L2) and 1 connector
(CN13) on the active filter. And Remove the 2 screws fixing the power module and remove it.
NOTE: When the active filter re-install, silicone grease must be paste to the back face of the Active Filter.
Active filter or
Power transistor module(IPM)
NG OK
CAUTION: Fix the connector of the power module securely.
2. Mounting position of thermistors and expansion valves
Mounting position of thermistors and expansion valves are shown below.
Thermistor
• Check the cord color of thermistor before mounting.
• Thermistor Suction, Suction A, Suction B, Suction C are mounted on GAS side pipes.
• Thermistor Heat exchanger is mounted on LIQUID side pipe.
Expansion valve
• Check the labels before connecting to the Control Board Unit.
Thermistor Suction (Black)
Label
Expansion valve C
Thermistor Suction C (Brown)
Label
Expansion valve B
Thermistor Suction B (White)
Label
Expansion valve A
Thermistor Suction A (Blue)
Thermistor Heat exchanger (Orange)
C B A
Heat exchanger
Thermistor
Expansion valve
Connector label
CAUTION: Mismounting and misconnecting will cause error or failure.
5 – 5
AEX3M18JR
MEMO
5 – 6
PartsGuide
AEX3M18JR
PARTS LIST
MULITI SPLIT TYPE
ROOM AIR CONDITIONERS
(OUTDOOR UNIT)
MODEL
AE-3XM18JR
CONTENTS
[1] OUTDOOR UNIT
[2] CONTROL BOARD UNIT PARTS
[3] IPM30A BOARD PARTS
[4] PACKING PARTS
INDEX
HOW TO ORDER REPLACEMENT PARTS
To have your order filled promptly and correctly, please furnish the following information.
1. MODEL NUMBER
2. REF. NO.
3. PART NO.
4. DESCRIPTION
This document has been published to be used for after sales service only.
The contents are subject to change without notice.
AEX3M18JR
[1] OUTDOOR UNIT
6-6
2-21
2-20
2-2
1-30
6-13
6-13
4-2
1-36
3-15
6-7
1-43
1-17
4-5
4-1
6-14
1-5
6-5
1-44
6-5
1-2
4-4
1-9
6-13
1-7
1-49
2-67
6-5
4-3
1-10
1-12
4-6 2-14
6-11 2-17
6-6
2-23
2-99
2-11
2-15
2-16
2-9
2-3
2-7
6-12
1-51
1-18 2-2
2-46
2-2
2-13
2-9
2-65
2-85
2-1
2-12
2-93
6-2
2-10 2-84
2-83
2-18
6-5
6-11
6-5
2-2
2-22
2-8
6-13
1-34
2-62
6-9
2-63
2-4
2-5 2-19
2-6
2-26
2-27
6-10
6-13 1-67
2-98
1-37
1-38
1-47
6-5
1-69
1-40 1-71
1-48
1-3
1-76 1-62
6-5
1-45
6-5
1-39
1-53
1-6
6-5
1-65
6-4
1-11
1-8
1-72
1-42
6-5
1-41
2-28
3-16 1-52
1-14
6-5
1-31
1-73
6-4
1-63
1-25
1-77
1-46
1-35
1-50
1-34
1-32
1-61
6-4
1-55
6-13
1-66
6-13
1-64
3-21
3-8
6-1
2-80
1-15
3-14
3-17
6-8
1-4
3-7
1-1
2-67
3-19
3-1
1-54
3-11
1-16
1-26
1-21
2-66
1-13
3-20 1-27
3-18
6-3
6-3
1-22
3-5
1-16
1-19
1-24
1-23
1-20
1-57
3-4
3-3
1-68
3-9
3-12
3-13
3-10
3-9
3-10
1-58
3-2
3-6
6-13
1-59
1-60
6-5
1-56
6-13 1-28
6-13
6-13
6-13 6-13
2
NO.
PARTS CODE
[1] OUTDOOR UNIT
CABINET AND UNIT PARTS
1-1 CCHS-A789JBTB
1-2 CMOTLB051JBEZ
1-3 DCAB-A126JBTB
1-4 FCOV-A330JBWZ
1-5 GCAB-A366JBTA
1-6 GFTA-A455JBTB
1-7 GGADFA042JBFA
1-8 GPLTMA059JBTB
1-9 LANGKA236JBPZ
1-10 LHLD-A574JBFA
1-11 LSUB-A024JBPZ
1-12 MSPR-A026JBE0
1-13 MSPR-A027JBE0
1-14 MSPR-A036JBE0
1-15 MSPR-A046JBE0
1-16 MSPR-A129JBE0
1-17 NFANPA108JBFA
1-18 PCOV-A578JBEZ
1-19 PCOV-A589JBEZ
1-20 PDAI-A136JBTB
1-21 PGUM-A115JBEZ
1-22 PGUM-A119JBEZ
1-23 PGUM-A120JBEZ
1-24 PGUM-A121JBEZ
1-25 PRDAFA163JBEZ
1-26 PGUMSA068JBE0
1-27 PGUMSA319JBEZ
1-28 PSEL-D235JBEZ
1-30 PSEL-B954JBEZ
1-31 PSEL-B956JBEZ
1-32 PSEL-B966JBEZ
1-34 PSEL-C011JBEZ
1-35 PSEL-C017JBEZ
1-36 PSEL-C019JBEZ
1-37 PSEL-C260JBEZ
1-38 PSEL-C261JBEZ
1-39 PSEL-C262JBEZ
1-40 PSEL-C277JBEZ
1-41 PSEL-C282JBEZ
1-42 PSEL-C343JBEZ
1-43 PSEL-C353JBEZ
1-44 PSEL-C354JBEZ
1-45 PSEL-C369JBEZ
1-46 PSEL-C370JBEZ
1-47 PSEL-C371JBEZ
1-48 PSEL-C372JBEZ
1-49 PSEL-C373JBEZ
1-50 PSKR-A244JBWZ
1-51 PSPA-A146JBE0
1-52 PSPF-A845JBEZ
1-53 PSPF-A846JBEZ
1-54 PTUB-A196JBEZ
1-55 RTRN-A294JBZZ
1-56 PCOV-B484JBFA
1-57 TLAB-B709JBRA
1-58 PFPFPD477JBEZ
1-59 PSEL-D236JBEZ
1-60 TLAB-C250JBRA
1-61 TLAB-C252JBRZ
1-62 TLAB-C773JBRZ
1-63 TLABBA146JBRA
1-64 TLABCC413JBRZ
1-65 TSPC-F913JBRZ
1-66 PSEL-C378JBEZ
1-67 PSEL-C379JBEZ
1-68 LSUB-A020JBWZ
1-69 PSEL-C382JBEZ
1-71 CFTA-A282JBKZ
1-72 PGUM-A141JBEZ
1-73 PSEL-C938JBEZ
1-76 TLAB-C511JBRA
1-77 TLAB-D315JBEZ
CONTROL BOX PARTS
2-1 DBOX-A039JBYZ
2-2 DSGY-C346JBKZ
2-3 LANG-A451JBWZ
2-4 LANG-A458JBWZ
2-5 LBNDKA154JBWZ
2-6 LHLD-0261JBM0
2-7 LPLTPA016JBFZ
2-8 LPLTPA017JBFZ
2-9 LPLTPA018JBFZ
2-10 LPLTPA027JBFZ
2-11 PCOV-A601JBWZ
PRICE
RANK
NEW
MARK
PART
RANK
AG
AG
AK
AN
AN
AG
AG
AB
AC
AS
AH
AK
BG
AG
AH
AG
AB
AE
AC
AW
AG
AK
AC
AG
AP
AE
AC
AC
AC
AC
AC
AR
AC
AD
AC
AC
AC
AG
AD
AE
AP
AD
AF
AG
AF
AF
AC
AC
BA
AE
AF
AP
AM
AG
AG
AE
AY
AE
AP
AB
AB
AB
AC
AD
BD
BV
BE
AZ
BR
AP
BH
AF
AW
CD
AE
AR
AN
AB
AG
AG
AG
AN
AQ
Base pan assembly
Fan motor
Rear cabinet assembly
Coil cover assembly
Cabinet
Control box cover
Fan guard
Side cover R
Motor angle
Thermistor holder
Motor angle sub
Spring
Thermistor spring
Thermistor spring
Protector spring
Cycle spring
Propeller fan
Sw board cover
Cover
Flare coupling base
Damper rubber
Valve rubber
Valve rubber
Damper rubber
Heat sink
Damper rubber
Damper rubber
INSULATOR
Bulkhead insulator
Bulkhead seal
Bulkhead seal
Insulator
Cabinet seal
Insulator
Seal A
Seal B
Seal C
Cover insulator
Cushion
Bulkhead insulator A
Insulator
Insulator
Accum.cushion
Insulator
Seal
Seal
Seal
Bulkhead
Spacer
Compressor cover A
Compressor cover B
Pipe insulator
Active coil (L1)
TUBE COVER
Label
INSULATOR
INSULATOR
Unit label
Service label
Label
Badge
Wiring diagram
Name label
Insulator
Insulator
Flare cup.sub-S
Seal D
Control cover assembly
Rubber
Insulator
Label
EU energy label
Cont.box spot assembly
Control board unit
Cont.box angle
Terminal board ang.
Capacitor band
Cord holder
Pwb support A
Pwb support B
Heatsink support
Pwb support C
Heatsink cover
3
DESCRIPTION
AEX3M18JR
AEX3M18JR
NO.
PARTS CODE
[1] OUTDOOR UNIT
2-12 PSEL-C376JBEZ
2-13 PRDAFA215JBEZ
2-14 PRDAFA216JBEZ
2-15 PSEL-C037JBEZ
2-16 PSEL-C074JBEZ
2-17 PSEL-C374JBEZ
2-18 PSHE-A195JBEZ
2-19 PSHE-A196JBEZ
2-20 PSPA-A064JBE0
2-21 PSPA-A065JBE0
2-22 PSPA-A150JBZZ
2-23 DSGY-C347JBKZ
2-26 QTANZA021JBZZ
2-27 QTANZA044JBZZ
2-28 QW-IZA120JBZZ
2-46 PSHE-A273JBEZ
2-62 RC-AZA046JBE0
2-63 RC-EZA250JBZZ
2-65 VHDD25VB60+-1
2-66 RH-HXA094JBZZ
2-67 RH-HXA095JBZZ
2-80 RTHM-A022JBE0
2-83 TLAB-B777JBRZ
2-84 TLAB-D245JBRZ
2-85 TLAB-D244JBRZ
2-93 RH-TXA008JBZZ
2-98 PSEL-C377JBEZ
2-99 RHOG-A169JBE0
CYCLE PARTS
3-1 CCIL-A133JBEZ
3-2 DVLV-A455JBKZ
3-3 DVLV-A460JBKZ
3-4 DVLV-A536JBKZ
3-5 DVLV-A668JBKZ
3-6 DVLV-A669JBKZ
3-7 GLEG-A029JBE0
3-8 LBSHCA005JBE0
3-9 LX-NZA250JBEZ
3-10 LX-NZA251JBEZ
3-11 PACU-A049JBEZ
3-12 PCAP-A083JBEZ
3-13 PCAP-A084JBEZ
3-14 PCMPRA524JBEZ
3-15 PCON-A490JBPZ
3-16 PCOV-0562JBE0
3-17 PMUF-A081JBEZ
3-18 PVLVRA040JBEZ
3-19 PVLVXA081JBEZ
3-20 RMOTSA031JBZZ
3-21 FCMPRA244JBKZ
ACCESORY PARTS
4-1 LHLD-A459JBEZ
4-2 LPFT-A029JBF0
4-3 TINS-B119JBRZ
4-4 TINS-B120JBRZ
4-5 LBND-A046JBE0
4-6 TINS-B121JBRZ
SCREWS AND NUTS
6-1 LX-BZA268JBEZ
6-2 LX-BZA075JBE0
6-3 LX-BZA078JBEZ
6-4 LX-BZA351JBEZ
6-5 LX-BZA364JBEZ
6-6 LX-HZA007JBEZ
6-7 LX-NZA319JBEZ
6-8 LX-NZA313JBEZ
6-9 XBPS740P14JS0
6-10 XCTS740P10000
6-11 XBPS740P20J00
6-12 XBPS730P10000
6-13 LX-BZA140JBE0
6-14 LX-BZA363JBEZ
PRICE
RANK
NEW
MARK
PART
RANK
AE
AG
BH
AC
AC
CM
CC
AD
AY
BM
BB
BC
CM
AS
BG
BG
AV
AZ
AW
AE
AA
AD
AD
AM
AM
AE
AM
AB
AC
AF
AF
AB
AE
AB
AA
AA
AD
AC
AE
AE
AE
BE
BG
AN
BC
BC
AN
AC
AF
AM
BR
AC
AK
AA
AA
AF
BV
AN
AU
AU
AF
AC
BE
BC
AE
AC
AC
AH
AE
DESCRIPTION
Insulator
Haet sink
Heat sink
Insulator
Insulator
Seal
Angle sheet
Cord holder sheet
Spacer
Spacer
Spacer
IPM30A board assembly
Terminal board 4P
Terminal board 3P
Compressor cord (for compressor)
Protection sheet (for display PWB)
Electrolytic capacitor (C9)
Electrolytic capacitor (C10)
Diode bridge (DB1)
Thermistor (TH6-TH8)
Thermistor (TH1-TH4)
Thermistor (TH1)
Caution label
Label
Label
Active filter
Insulator
Thermistor (HEATSINK)
Coil
Flare union unit 3S
Flare union unit 3S
Flare union unit 2S
3way valve unit
3way valve unit
Comp. cushion rubber
Terminal bushing
Flare nut
Flare nut
Accumulator
Nut bonnet
Nut bonnet
Compressor
Condenser
Terminal cover
Muffler
Expansion valve
Reverse valve
Coil
Compressor assembly (3-7, 3-8, 3-14, 3-16)
Holder
Drain joint
Installation manual (English, Italian)
Installation manual (French, Spanish)
Wire fixing band
Installation manual (Portuguese)
Special screw
Special screw (for earth)
Special screw
Special screw
Special screw
Special screw
Special nut
Special nut
Machine screw
Tapping screw
Machine screw
Machine screw
Special screw
Special screw
4
NO.
PARTS CODE
PRICE
RANK
NEW
MARK
[2] CONTROL BOARD UNIT PARTS
2-2 DSGY-C346JBKZ
2-2-1 QFS-GA065JBZZ
2-2-2 QFS-GA062JBZZ
2-2-3 QFS-GA063JBZZ
2-2-4 QFS-GA064JBZZ
CT1 RTRN-A256JBE0
D1 D38 VHD1SS133//-1
D14 VHDRK36LF011B
D19-21 VHD1SR139-6-1
D2-4 VHD1SR139-6-1
D26-37 VHD1SR35-4A-1
IC1 RH-IXA924JBNA
IC2 RH-IZA140JBE0
IC3 IC12 RIC--A025BDE0
IC4 VHISTRL472+-1
IC5 VHIKIA339F+-1L
IC6 FH-IXA341JBKZ
IC7 RIC--A022BDE0
IC8 VHIMM1431A+-1+
IC9 VHINJM2904M-1R
L3 L4 RFIL-A116JBZZ
L5 RFILNA013JBZZ
L6 RFILNA007CBZZ
MRY1 RRLYDA012JBZZ
NR1-NR3 RH-VXA002JBZZ
PC1 VHGPC81716P-1L
PC4.6.8
VHGPC817XP3-1L
PC5.7.9
VHGPC853HXP-1R
PTC1 RH-QXA005JBZZ
Q11 VSKRC245M//-3
Q13-15 VS2SA1020Y+-1+
Q2 VS2SA1586G+-1L
RY1 RRLYDA008JBZZ
SA1 QSPGCA006JBZZ
SW1-3 QSW-PA016DRE0
TR1 RTRNWA034JBZZ
[3] IPM30A BOARD PARTS
2-23 DSGY-C347JBKZ
2-23-1 RH-IXA859JBZZ
R100 RR-WZA028JBE0
BV
BQ
AE
AF
AD
AD
AG
AW
AC
AH
AB
AU
AE
AD
AD
AY
BE
AR
AR
AH
AH
AB
AG
AB
AB
AC
BG
AE
AE
AL
AD
CD
BA
AF
AE
AF
AG
AA
AD
PART
RANK
Control board unit
Fuse (FUSE1,101)
Fuse (FUSE3, 4)
Fuse (FUSE5)
Fuse (FUSE6)
Transformer (CT1)
Diode (D1,38)
Diode (D14)
Diode
Diode
Diode (D26~37)
Micro computer (IC1)
Integrated circuit (IC2)
Integrated circuit (IC3, IC12)
Integrated circuit (IC4)
Integrated circuit (IC5)
EEPROM-AEX3M8JR (IC6)
Integrated circuit (IC7)
Integrated circuit (IC8)
Integrated circuit (IC9)
Coil (L3,4)
Normal coil (L5)
Common coil (L6)
Relay (MRY1)
Varistor (NR1-NR3)
Photo coupler (PC1)
Photo coupler (PC4,6,8)
Photo coupler (PC5,7,9)
PTC thermistor (PTC1)
Transistor (Q11)
Transistor (Q13~15)
Transistor (Q2)
Relay (RY1)
Surge absorb (SA1)
Tact switch (SW1,2,3)
Transformer (TR1)
IPM30A board assembly
Power module (PS21267-P)
Cement Resistor (R100)
[4] PACKING PARTS
DESCRIPTION
5-3
AEX3M18JR
Front side
5-1
NO.
PARTS CODE
[4] PACKING PARTS
5-1 SPAKCC415JBEZ
5-2 CPADBA131JBKZ
5-3 CPADBA132JBKZ
PRICE
RANK
NEW
MARK
PART
RANK
BB
AZ
AS
Packing case
Bottom pad assembly
Packing pad assembly
5
DESCRIPTION
5-2
AEX3M18JR
INDEX
PARTS CODE
[ L ]
LANG-A451JBWZ
LANG-A458JBWZ
LANGKA236JBPZ
LBND-A046JBE0
LBNDKA154JBWZ
LBSHCA005JBE0
LHLD-0261JBM0
LHLD-A459JBEZ
LHLD-A574JBFA
LPFT-A029JBF0
LPLTPA016JBFZ
LPLTPA017JBFZ
LPLTPA018JBFZ
LPLTPA027JBFZ
LSUB-A020JBWZ
LSUB-A024JBPZ
LX-BZA075JBE0
LX-BZA078JBEZ
LX-BZA140JBE0
LX-BZA268JBEZ
LX-BZA351JBEZ
LX-BZA363JBEZ
LX-BZA364JBEZ
LX-HZA007JBEZ
LX-NZA250JBEZ
LX-NZA251JBEZ
LX-NZA313JBEZ
LX-NZA319JBEZ
[ M ]
MSPR-A026JBE0
MSPR-A027JBE0
MSPR-A036JBE0
MSPR-A046JBE0
MSPR-A129JBE0
[ N ]
NFANPA108JBFA
[ P ]
PACU-A049JBEZ
PCAP-A083JBEZ
PCAP-A084JBEZ
PCMPRA524JBEZ
PCON-A490JBPZ
PCOV-0562JBE0
PCOV-A578JBEZ
PCOV-A589JBEZ
PCOV-A601JBWZ
PCOV-B484JBFA
PDAI-A136JBTB
PFPFPD477JBEZ
[ C ]
CCHS-A789JBTB
CCIL-A133JBEZ
CFTA-A282JBKZ
CMOTLB051JBEZ
CPADBA131JBKZ
CPADBA132JBKZ
[ D ]
DBOX-A039JBYZ
DCAB-A126JBTB
DSGY-C346JBKZ
"
DSGY-C347JBKZ
"
DVLV-A455JBKZ
DVLV-A460JBKZ
DVLV-A536JBKZ
DVLV-A668JBKZ
DVLV-A669JBKZ
[ F ]
FCMPRA244JBKZ
FCOV-A330JBWZ
FH-IXA341JBKZ
[ G ]
GCAB-A366JBTA
GFTA-A455JBTB
GGADFA042JBFA
GLEG-A029JBE0
GPLTMA059JBTB
No.
1-1-1
1-3-1
1-1-71
1-1-2
4-5-2
4-5-3
1-1-12
1-1-13
1-1-14
1-1-15
1-1-16
1-1-17
1-3-11
1-3-12
1-3-13
1-3-14
1-3-15
1-3-16
1-1-18
1-1-19
1-2-11
1-1-56
1-1-20
1-1-58
1-2-1
1-1-3
1-2-2
2-2-2
1-2-23
3-2-23
1-3-2
1-3-3
1-3-4
1-3-5
1-3-6
1-3-21
1-1-4
2-IC6
1-1-5
1-1-6
1-1-7
1-3-7
1-1-8
1-2-10
1-1-68
1-1-11
1-6-2
1-6-3
1-6-13
1-6-1
1-6-4
1-6-14
1-6-5
1-6-6
1-3-9
1-3-10
1-6-8
1-6-7
1-2-3
1-2-4
1-1-9
1-4-5
1-2-5
1-3-8
1-2-6
1-4-1
1-1-10
1-4-2
1-2-7
1-2-8
1-2-9
PRICE
RANK
NEW
MARK
PART
RANK
AB
AB
AB
AC
AD
BA
AD
AE
AF
AQ
AG
AP
AG
BH
AC
AC
CM
CC
CM
AZ
AU
BR
AP
BH
AE
AF
BG
BG
AV
AZ
AW
AW
BE
CD
CD
BV
BV
AE
AC
AE
AE
AG
AE
AE
AN
AE
AP
AA
AA
AB
AB
AD
AA
AB
AD
AE
AD
AG
AG
AG
AE
AR
AY
AE
AN
BD
AS
AW
BV
AZ
AS
6
PARTS CODE
PSEL-C374JBEZ
PSEL-C376JBEZ
PSEL-C377JBEZ
PSEL-C378JBEZ
PSEL-C379JBEZ
PSEL-C382JBEZ
PSEL-C938JBEZ
PSEL-D235JBEZ
PSEL-D236JBEZ
PSHE-A195JBEZ
PSHE-A196JBEZ
PSHE-A273JBEZ
PSKR-A244JBWZ
PSPA-A064JBE0
PSPA-A065JBE0
PSPA-A146JBE0
PSPA-A150JBZZ
PSPF-A845JBEZ
PSPF-A846JBEZ
PTUB-A196JBEZ
PVLVRA040JBEZ
PVLVXA081JBEZ
[ Q ]
QFS-GA062JBZZ
QFS-GA063JBZZ
QFS-GA064JBZZ
QFS-GA065JBZZ
QSPGCA006JBZZ
QSW-PA016DRE0
QTANZA021JBZZ
QTANZA044JBZZ
QW-IZA120JBZZ
PGUM-A115JBEZ
PGUM-A119JBEZ
PGUM-A120JBEZ
PGUM-A121JBEZ
PGUM-A141JBEZ
PGUMSA068JBE0
PGUMSA319JBEZ
PMUF-A081JBEZ
PRDAFA163JBEZ
PRDAFA215JBEZ
PRDAFA216JBEZ
PSEL-B954JBEZ
PSEL-B956JBEZ
PSEL-B966JBEZ
PSEL-C011JBEZ
PSEL-C017JBEZ
PSEL-C019JBEZ
PSEL-C037JBEZ
PSEL-C074JBEZ
PSEL-C260JBEZ
PSEL-C261JBEZ
PSEL-C262JBEZ
PSEL-C277JBEZ
PSEL-C282JBEZ
PSEL-C343JBEZ
PSEL-C353JBEZ
PSEL-C354JBEZ
PSEL-C369JBEZ
PSEL-C370JBEZ
PSEL-C371JBEZ
PSEL-C372JBEZ
PSEL-C373JBEZ
[ R ]
RC-AZA046JBE0
RC-EZA250JBZZ
RFIL-A116JBZZ
RFILNA007CBZZ
RFILNA013JBZZ
RH-HXA094JBZZ
RH-HXA095JBZZ
RH-IXA859JBZZ
RH-IXA924JBNA
RH-IZA140JBE0
RHOG-A169JBE0
RH-QXA005JBZZ
RH-TXA008JBZZ
RH-VXA002JBZZ
RIC--A022BDE0
BC
BC
BQ
BG
AE
AK
AW
BR
AF
AE
BE
BG
AY
AR
BE
AF
AE
AF
BA
AH
AB
AN
AU
AU
PRICE
RANK
NEW
MARK
PART
RANK
AG
AH
AE
AF
AR
AA
AA
AC
AC
AC
AC
AB
AB
AC
AK
AG
AF
AS
AH
AK
BM
BB
AE
AP
AE
AC
AC
AC
AC
AC
AD
AE
AC
AC
AC
AC
AG
AD
AP
BE
BC
AF
AF
AC
AC
AC
AM
AG
AG
AE
AG
AD
AF
AY
2-2-2-2
2-2-2-3
2-2-2-4
2-2-2-1
2-SA1
2-SW1-3
1-2-26
1-2-27
1-2-28
1-2-62
1-2-63
2-L3 L4
2-L6
2-L5
1-2-66
1-2-67
3-2-23-1
2-IC1
2-IC2
1-2-99
2-PTC1
1-2-93
2-NR1-NR3
2-IC7
No.
1-2-17
1-2-12
1-2-98
1-1-66
1-1-67
1-1-69
1-1-73
1-1-28
1-1-59
1-2-18
1-2-19
1-2-46
1-1-50
1-2-20
1-2-21
1-1-51
1-2-22
1-1-52
1-1-53
1-1-54
1-3-18
1-3-19
1-1-36
1-2-15
1-2-16
1-1-37
1-1-38
1-1-39
1-1-40
1-1-41
1-1-42
1-1-43
1-1-44
1-1-45
1-1-46
1-1-47
1-1-48
1-1-49
1-1-21
1-1-22
1-1-23
1-1-24
1-1-72
1-1-26
1-1-27
1-3-17
1-1-25
1-2-13
1-2-14
1-1-30
1-1-31
1-1-32
1-1-34
1-1-35
PARTS CODE
RIC--A025BDE0
RMOTSA031JBZZ
RRLYDA008JBZZ
RRLYDA012JBZZ
RR-WZA028JBE0
RTHM-A022JBE0
RTRN-A256JBE0
RTRN-A294JBZZ
RTRNWA034JBZZ
[ S ]
SPAKCC415JBEZ
[ T ]
TINS-B119JBRZ
TINS-B120JBRZ
TINS-B121JBRZ
TLAB-B709JBRA
TLAB-B777JBRZ
TLABBA146JBRA
TLAB-C250JBRA
TLAB-C252JBRZ
TLAB-C511JBRA
TLAB-C773JBRZ
TLABCC413JBRZ
TLAB-D244JBRZ
TLAB-D245JBRZ
TLAB-D315JBEZ
TSPC-F913JBRZ
[ V ]
VHD1SR139-6-1
"
VHD1SR35-4A-1
VHD1SS133//-1
VHDD25VB60+-1
VHDRK36LF011B
VHGPC81716P-1L
VHGPC817XP3-1L
VHGPC853HXP-1R
VHIKIA339F+-1L
VHIMM1431A+-1+
VHINJM2904M-1R
VHISTRL472+-1
VS2SA1020Y+-1+
VS2SA1586G+-1L
VSKRC245M//-3
[ X ]
XBPS730P10000
XBPS740P14JS0
XBPS740P20J00
XCTS740P10000
No.
2-IC3 IC12
1-3-20
2-RY1
2-MRY1
3-R100
1-2-80
2-CT1
1-1-55
2-TR1
4-5-1
1-4-3
1-4-4
1-4-6
1-1-57
1-2-83
1-1-63
1-1-60
1-1-61
1-1-76
1-1-62
1-1-64
1-2-85
1-2-84
1-1-77
1-1-65
2-D2-4
2-D19-21
2-D26-37
2-D1 D38
1-2-65
2-D14
2-PC1
2-PC4.6.8
2-PC5.7.9
2-IC5
2-IC8
2-IC9
2-IC4
2-Q13-15
2-Q2
2-Q11
1-6-12
1-6-9
1-6-11
1-6-10
AD
AD
AD
AG
AD
AD
AD
AL
AB
AB
AC
AA
AN
AH
AB
AC
AM
AM
AM
AH
AC
AN
AG
AK
AC
AN
AG
AM
AF
AG
AG
AF
AB
AF
AC
PRICE
RANK
NEW
MARK
PART
RANK
AE
BC
AH
AR
AE
AN
AG
BG
AG
BB
AEX3M18JR
7
EndPage
COPYRIGHT © 2008 BY SHARP CORPORATION
ALL RIGHTS RESERVED.
No part of this publication may be reproduced, stored in retrieval systems, or transmitted in anyform or by any means, electronic, mechanical, photocopying, recording, or other wise, without prior written permission of the publisher.
– 1

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Key features
- Multi-room operation
- Individual temperature control
- DC over-current protection
- AC over-current protection
- Compressor overheat prevention control
- Compressor high temperature error
- Outdoor heat exchanger overheat prevention control
- Active filter circuit
- IPM drive circuit
- Serial signal communication