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Sharp AE-X15PU Service Manual

Split type room air conditioner (outdoor unit)
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TopPage
[1]
SPECIFICATION.................................... . ....... 1-1
[2]
EXTERNAL DIMENSION....................... . ....... 1-2
[3]
WIRING DIAGRM ..................................
[4]
ELECTRICAL PARTS................................... 1-4
[1]
BLOCK DIAGRAMS............................... . ...... 2-1
[2]
[3]
FUNCTION ................................................... 2-6
OF PROTECTIVE PROCEDURES
[1]
AND OPERATIONS......................................3-1
[2]
THERMISTOR ERROR................................3-3
[3]
ERISTICS......................................................3-5
[4]
UNIT INDEPENDENTLY...............................3-5
[5]
CHART..........................................................3-6
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.

SERVICE MANUAL

ROOM AIR CONDITIONER

(OUTDOOR UNIT)
AE-X15PU
MODEL
AE-X18PU
AE-X24PU
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
[6]
METHOD.....................................................3-8
[7]
........ 1-2
[8]
TROUBLESHOOTING GUIDE....................3-12
[9]
CHART........................................................3-13
[1]
SCHEMATIC DIAGRAM...............................4-1
....... 2-2
[2]
STANDARD CONDITION.............................4-1
[3]
CURRENT OF HEAT CONTROLLER..........4-1
[4]
PRESSURE IN 3-WAY VALVE.....................4-1
[5]
CYCLE...........................................................4-3
[6]
HEATING OPERATION ...............................4-3
[1]
OUTDOOR UNIT..........................................5-1
[2]
DISASSEMBLY OF CONTROL BOX...........5-4
CHAPTER 6. INSTALLATION MANUAL.............6-1
Parts List
SA210AEX15PU/T
SPLIT TYPE
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
AE-X15PU

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  Summary of Contents for Sharp AE-X15PU

  • Page 1: Table Of Contents

    TopPage AE-X15PU SERVICE MANUAL SA210AEX15PU/T SPLIT TYPE ROOM AIR CONDITIONER (OUTDOOR UNIT) AE-X15PU MODEL AE-X18PU AE-X24PU 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.
  • Page 2: Chapter 1. Specification

    AE-X15PU CHAPTER 1. SPECIFICATION AUX3M24LV [1] SPECIFICATION [2] Outdoor INDOOR MODEL AE-X15PU AE-X18PU AE-X24PU ITEMS Power supply Phase Single Single Single Rated frequency 208/230 208/230 208/230 Reted voltage System Indoor units number Maximum length (per unit) 65.6 (20) 98.4 (30) ft (m) 98.4 (30)
  • Page 3: External Dimension

    AE-X15PU [2] EXTERNAL DIMENSION Length unit: inch (mm) 0.6 (16) 2.0 (50) 2.8 (72) 36.2 (920) 35.6 (905) 14.3 (363) 33.5 (850) 13.0 (330) 8.3 (210.9) 5.6 (141.3) 21.9 (557.4) [3] WIRING DIAGRAM AE-X15PU/AE-X18PU 1 – 2...
  • Page 4: Electrical Parts

    AE-X15PU AE-X24PU [4] ELECTRICAL PARTS AE-X15PU / AE-X18PU Compressor SNB130FGBMT SIAM (13.0 CC) (FCMPRA333JBKZ) SHA-52FV-D843-2 AE-X24PU Compressor SNB130FGBMT DC motor (FCMPRA333JBKZ) SHA-52FV-D843-2 QFS-GA091JBZZ (25A 250V) Compressor SNB130FGBMT DC motor (FCMPRA333JBKZ) Fan motor RDN-280-60-8C DC motor (CMOTLB488JBEZ) 1 – 3...
  • Page 5: Chapter 2. Electroic Circuit Block Diagrams

    AE-X15PU ELECTROIC CIRCUIT CHAPTER 2. [1] BLOCK DIAGRAMS 1. Outdoor unit 20A(25A for AE-X24PU) Expansion valve circuit Expansion valve 2 – 1...
  • Page 6: Microcomputer Control System

    AE-X15PU [2] MICROCOMPUTER CONTROL SYSTEM 1-1 Electronic control circuit diagram: AE-X15PU R104A R104B 2 – 2...
  • Page 7 AE-X15PU 1-2 Electronic control circuit diagram: AE-X18PU R104A R104B...
  • Page 8 AE-X15PU 1-3 Electronic control circuit diagram: AE-X24PU R104A R104B 2 – 4...
  • Page 9 AE-X15PU 2. Printed wiring board: AE-X15PU This PCB is common for AE-X15PU/X18PU/X24PU, but for AE-X24PU, there will be a sub-board. Will be released after approval. 2 – 5...
  • Page 10: Function

    AE-X15PU [3] FUNCTION 1. Function 1.5. Peak control 1.1. Restart control If the current flowing in the air conditioner exceeds the peak control Once the compressor stops operating, it will not restart for 180 sec- current (see the table below), the operation frequency is decreased onds to protect the compressor.
  • Page 11 AE-X15PU 1.9. AUTOMATIC AIR CONDITIONING 1.10. INACTIVATE 5°F(-15°C) AUTO STOP FUNCTION In the AUTO mode, the unit will automatically select COOL or HEAT During the heating operation, the unit will automatically stop when mode by comparing the room temperature and your desired tempera- the outdoor temperature drops below 5°F(-15°C) to prevent the...
  • Page 12 AE-X15PU 2.2. High power factor control circuit This circuit brings the operating current waveform closer to the waveform of commercial power supply voltage to maintain a high power factor. Because of the capacitor input, when the PAM circuit is OFF, the phase of the current waveform deviates from the voltage waveform as shown below.
  • Page 13 AE-X15PU 2.3.1 Details of troubleshooting procedure for PAM 1) PAM shutdown due to error 1) When the DC voltage detection circuit sends a signal exceeding the specified voltage to the microcomputer DC voltage of 400 V or higher (detection circuit input voltage of about 4.6 V or higher) [IC1 69 pin] –...
  • Page 14 AE-X15PU 3. Explanation of IPM drive circuit The IPM for compressor drive is made by Mitsubishi Electric. The power supply for the IPM drive, the shunt resistance for over current detection, etc., are provided outside the IPM (control PWB). 3.1. IPM drive power supply circuit The power supply for the upper-phase IGBT (HU, HV, HW) drive employs a bootstrap system, and provides power to the upper-phase IC.
  • Page 15 3.1.2 DC over current detection circuit When a current of about 20 A or higher flows through the shunt resistance [AE-X15PU(R230~R234), AE-X18PU/AE-X24PU(R230~R235)] on the control printed wiring board (PWB), the voltage at this resistance is input to IPM CIN pin (15). Then, the gate voltage of the lower-phase IGBT (LU, LV, LW) inside the IPM turns OFF to cut off the over current.
  • Page 16 AE-X15PU 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.
  • Page 17: Chapter 3. Function And Operation

    [1] PROTECTION DEVICE FUNCTIONS AND OPERATIONS * These models have following thermistors. INDOOR UNIT AE-X15PU, AE-X18PU, AE-X24PU TH1, TH2, TH3, TH4, TH6 The errors for the thermistors that are not mentioned above are irrelevant. These indoor units don’t have power relay.
  • Page 18 AE-X15PU result display Description Detection period Reset condition Indoor Indoor Outdoor unit unit unit error display Operation OFF or ON Yes I1 Thermistor installa- Compressor stops if high and low 3 minutes after com- tion error or 4-way values of temperatures detected...
  • Page 19: Air Conditioner Operation In Thermistor Error

    [2] AIR CONDITIONER OPERATION IN THERMISTOR ERROR * These models have following thermistors. INDOOR UNIT AE-X15PU, AE-X18PU, AE-X24PU TH1, TH2, TH3, TH4, TH6 The errors for the thermistors that are not mentioned above are irrelevant. These indoor units don’t have power relay.
  • Page 20 AE-X15PU 1. Outdoor unit Item Mode Control opera- When resis- Short-circuit When resis- Open-circuit tion tance is low tance is high (temperature (temperature judged higher judged lower than actual) than actual) Compressor Cooling Expansion valve Compressor Compressor high Layer short-cir-...
  • Page 21: Thermistor Temperature Characteristics

    AE-X15PU [3] THERMISTOR TEMPERATURE CHARACTERISTICS 1. Outdoor unit thermistor temperature characteristics To measure the resistance, first remove the connector from the board. t s i No. Connector 1 - 2 Compressor thermistor 3 - 4 Heat exchanger pipe thermistor Orange Outdoor temp.
  • Page 22: General Troubleshooting Chart

    AE-X15PU [5] GENERAL TROUBLESHOOTING CHART * These models have following thermistors. INDOOR UNIT AE-X15PU, AE-X18PU, AE-X24PU TH1, TH2, TH3, TH4, TH6 The errors for the thermistors that are not mentioned above are irrelevant. These indoor units don’t have power relay.
  • Page 23 AE-X15PU 5. Louvers do not move Main cause Inspection method Normal value/condition Remedy Caught in sliding section. Operate to see if louvers are Louvers should operate smoothly. Remove or correct catching sec- caught in place. tion. Disconnected connector Inspect connectors.
  • Page 24: Malfunction(Parts) Check Method

    AE-X15PU [6] MALFUNCTION (PARTS) CHECK METHOD 1. Procedure for determining defective outdoor unit IPM/compressor The following flow chart shows a procedure for locating the cause of a malfunction when the compressor does not start up and a DC overcurrent indi- cation error occurs.
  • Page 25: Outdoor Unit Check Method

    AE-X15PU 4. IPM check method Turn off the power, let the large capacity electrolytic capacitor (C8, C9) discharge completely, and dismount the IPM. Then, using a tester, check leak current between C and E. When using a digital tester, the (+) and (-) tester lead wires in the table must be reversed.
  • Page 26 AE-X15PU 2. Troubleshooting of outdoor unit electric components 3 – 10...
  • Page 27 AE-X15PU 3. Caution in checking printed wiring boards (PWB) 3.1. 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 wiring board (PWB) are connected to the compressor drive power supply (320-VDC negative terminal). Therefore, exercise utmost caution to prevent electric shock.
  • Page 28: Troubleshooting Guide

    AE-X15PU [8] TROUBLESHOOTING GUIDE 1. Self-Diagnosis Function 1.1. Indoor unit • To display the self-diagnosis, hold down the AUX button for over 5 seconds on the indoor unit when the indoor unit is not operating. • The operation lamp (green), timer lamp (orange) and Plasmacluster lamp (blue) flash to indicate the information of malfunction.
  • Page 29: Chart

    AE-X15PU [9] CHART <INDOOR UNIT> ○:1-second ON / 1-second OFF Malfunction Indoor unit Content of diagnosis Check point Action Outdoor No.* Problem unit symptom indication (LED1) → Lamp Main Sub Main Normal Normal Normal O O O O O Timer (Orange)
  • Page 30 AE-X15PU Malfunction Indoor unit Content of diagnosis Check point Action Outdoor No.* Problem unit symptom indication (LED1) → Lamp Main Sub Main Indoor and 5-time O O O O O Timer (Orange) Outdoor unit Heat exchanger 1) Check connector of...
  • Page 31 AE-X15PU Malfunction Indoor unit Content of diagnosis Check point Action Outdoor No.* Problem unit symptom indication (LED1) → Lamp Main Sub Main O O O O O Timer (Orange) Thermistor 1)Check the ther- 1)Correct the instal- Cycle Indoor and 9- ime...
  • Page 32 AE-X15PU Malfunction Indoor unit Content of diagnosis Check point Action Outdoor No.* Problem unit symptom indication (LED1) → Lamp Main Sub Main Indoor and 12- ime O O O O O Timer (Orange) Thermal fuse Thermal fuse error 1) Check he thermal fuse...
  • Page 33 AE-X15PU Malfunction Indoor unit Content of diagnosis Check point Action Outdoor No.* Problem unit symptom indication (LED1) → Lamp Main Sub Main Indoor and Normal O O O O O Timer (Orange) Indoor unit Indoor unit fan error 1) Check the indoor fan...
  • Page 34: Chapter 4. Refrigeration Cycle

    7.6 A 9.5 A AE-X18PU 7.7 A 10.3 A 12.0 A AE-X24PU 11.8 A [4] TEMPERATURE AT EACH PART AND PRESSURE IN 3-WAY VALVE (AY-XPC15PU / AE-X15PU) COOLING HEATING COOLING HEATING MODE TEST RUN TEST RUN 62 OR MORE 80 OR MORE...
  • Page 35 AE-X15PU The content of this page is currently under revision. Will be released after approval. (AY-XPC18PU / AE-X18PU) (AY-XPC18PU / AE-X18PU) COOLING COOLING HEATING HEATING COOLING TEST COOLING HEATING TEST HEATING MODE MODE RUN MODE TEST RUN RUN MODE TEST RUN...
  • Page 36: Flow Chart Of Refrigerant Cycle

    5-1 COOLING & DEFROSTING 5-2 HEATING [6] CHARACTERISTIC OF COOLING AND HEATING OPERATION 6-1 AY-XPC15PU / AE-X15PU CAUTION: Indoor fan speed is set to [HIGH]. Airflow direction is initial. Air inlet temperature of is 80℉ (26.7℃) during COOLING operation, and 70℉ (21.1℃) during HEATING operation.
  • Page 37 AE-X15PU 6-2 AY-XPC18PU / AE-X18PU CAUTION: Indoor fan speed is set to [HIGH]. Airflow direction is initial. Temperature of inlet is 80℉ (26.7℃) during COOLING operation, and 70℉ (21.1℃) during HEATING operation. 6-2-1 COOLING 6-2-2 HEATING 1600 2300 1500 2120...
  • Page 38: Chapter 5. Disassembly Procedure

    AE-X15PU CHAPTER 5. DISASSEMBLING PROCEDURE If, in carrying out repairs and modifications, the work requires the use of arc- and flame-producing apparatus, such as welding, brazing and soldering equipment, this work shall only be started after the rooms have been thoroughly ventilated. While the work is being carried out, the mechanical venti- lation, if any, shall be kept in constant operation and all windows and doors kept open.
  • Page 39 AE-X15PU 9) Unscrew the 2 screws fixing the angle and remove it. 5) Unscrew the 2 screws fixing the cable holdor and remove it Angle 6) Unscrew the 6 screws fixing the top plate and remove it. 10) Unscrew the 4 screws fixing the front panel and remove it.
  • Page 40 AE-X15PU 17)Unscrew the 2 screws fixing the bu khead and remove it. 13).Unscrew the 3 screws fixing control unit and remove it. Contol unit Bulkhead 14)Remove the 2 compressor covers. 18)Unscrew the 2 screws fixing the motor angle and remove it.
  • Page 41 AE-X15PU [2] DISASSEMBLY OF CONTROL UNIT 1. Control unit box’s Approach to decomposition 5) Unscrew the 4 screws fixing the Heatsink holder and remove it. 1) Unscrew the 2 screws and remove the terminal board. Heat sink holder 2) Unscrew the 2 screws fixing the terminal angle and remove it.
  • Page 42: Outdoor Unit

    AE-X15PU PARTS GUIDE SPLIT TYPE ROOM AIR CONDITIONER OUTDOOR UNIT AE-X15PU MODEL AE-X18PU AE-X24PU In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condi ion and only parts identical to those specified should be used.
  • Page 43 AE-X15PU [1] OUTDOOR UNIT PARTS FOR AE-X15PU, AE-X18PU, AE-X24PU...
  • Page 44 AE-X15PU PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [2] OUTDOOR UNIT STRUCTURE AND CYCLE PARTS(AE-X15PU,AE-X18PU,AE-X24PU) CMOTLB537JBEZ FAN MOTOR LANGKA326JBTA MOTOR ANGLE T LANGKA325JBTA MOTOR ANGLE LANGKA324JBTA FAN MOTOR ANGLE SUB GCAB-A469JBTA FRONT PANEL L GGADFA049JBFA FAN GUARD CCAB-A586JBKZ FRONT PANEL R ASS'Y...
  • Page 45 CBOX-A082JBKZ CONTROL BOX C ASS'Y 3-10 RCILZA051JBZZ REACTOR 3-11 RH-HXA187JBZZ THERMISTOR 3-12 TLABCE028JBRZ WIRING DIAGRAM 3-13 TLABNA002JBRZ LABEL [2] OTHER OUTDOOR UNIT ELECTRIC PARTS(AE-X15PU,AE-X18PU,AE-X24PU) QFS-GA077JBZZ Fuse (FU3) QFS-GA078JBZZ Fuse (FU2) QFS-GA090JBZZ Fuse (FU5) QFS-GA091JBZZ Fuse (FU1) QSPGCA006JBZZ Surge absorb (SA1)
  • Page 46 AE-X15PU PRICE PART PARTS CODE NEW MARK DESCRIPTION RANK RANK 4-11 QW-VZG615JBZZ Lead wire (BT14,BT15,BT16) 4-12 QW-VZG713JBZZ Lead wire (BT5) 4-13 QW-VZG762JBZZ Lead wire (BT4) 4-14 QW-VZG772JBZZ Lead wire (JPL1A-JPL1B) 4-15 QW-VZG773JBZZ Lead wire (JPL2C-JPL2D) 4-16 QW-VZG775JBZZ Lead wire (BT3)

This manual is also suitable for:

Ae-x18puAe-x24pu