Sharp AE-X2M14LR Service Manual
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Sharp AE-X2M14LR Service Manual

Muliti split type room air conditioners (outdoor unit)
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CHAPTER 1. SPECIFICATIONS
[1]
SPECIFICATION ........................................... 1-1
[2]
EXTERNAL DIMENSION .............................. 1-2
[3]
CAPACITY TABLE......................................... 1-3
[4]
ELECTRICAL PARTS.................................... 1-3
[5]
WIRING DIAGRAMS ..................................... 1-4
ERATION
[1]
BLOCK DIAGARM ........................................ 2-1
[2]
FUNCTIONS ................................................. 2-2
[3]
ACTIVE FILTER CIRCUIT............................. 2-4
[4]
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

MULITI SPLIT TYPE
ROOM AIR CONDITIONERS
MODEL
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
[1]
TIONS .................................................... . ....... 3-1
[2]
TROUBLESHOOTING GUIDE .............. . ....... 3-2
[1]
REFRIGERATION SYCLE..................... . ....... 4-1
[2]
WORKS ................................................. . ....... 4-2
[1]
OUTDOOR UNIT ................................... . ....... 5-1
No. S2038AEX2MLRT
(OUTDOOR UNIT)
AE-X2M14LR
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
AEX2M14LR

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Summary of Contents for Sharp AE-X2M14LR

  • Page 1: Table Of Contents

    No. S2038AEX2MLRT MULITI SPLIT TYPE ROOM AIR CONDITIONERS (OUTDOOR UNIT) AE-X2M14LR MODEL 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: Specification

    AEX2M14LR CHAPTER 1. AEX2M14LR SPECIFICATIONS Service Manual [1] SPECIFICATION ITEMS INDOOR UNIT OUTDOOR UNIT AY-XPM7FR/9FR/12FR AE-X2M14LR Cooling capacity 2-INDOOR OPERATION 7K & 7K 3.8(1.8 – 4.3)* Heating capacity 2-INDOOR OPERATION 7K & 7K 4.4 (1.9 – 5.4)* Moisture removal Liters/h ✩...

  • Page 3: External Dimension

    AEX2M14LR [2] EXTERNAL DIMENSION 1 – 2...

  • Page 4: Capacity Table

    AEX2M14LR [3] CAPACITY TABLE Recommended Combination Outdoor Units Indoor Units AY-XPM7/9/12FR, GS-XPM9/12, GS-XPM7/9/12FR AE-X2M14LR COOLING CAPACITY TABLE Operating Combination of Cooling Capacity (kW) Running Current (A) Power Consumption (W) Status Indoor Units RATING (Min. - Max.) RATING (Min. - Max.) RATING (Min.

  • Page 5: Wiring Diagrams

    AEX2M14LR [5] WIRING DIAGRAMS from ELECTROLYTIC CAPACITOR C10(+) from CONTROL PWB CN14 from ELECTROLYTIC CAPACITOR C10(-) from COMPRESSOR TERMINAL W "ORANGE" from COMPRESSOR TERMINAL from COMPRESSOR TERMINAL U "RED" V "WHITE" from CONTROL PWB BCN1 IPM P.W.B. 1 – 4...
  • Page 6 AEX2M14LR RELAY P.W.B and POWER SUPPLY P.W.B. 1 – 5...
  • Page 7 AEX2M14LR CONTROL P.W.B and DISPLAY P.W.B 1 – 6...
  • Page 8 AEX2M14LR 1 – 7...

  • Page 9: Chapter 2. Explanation Of Circuit And Op

    AEX2M14LR CHAPTER 2. AEX2M14LR EXPLANATION OF CIRCUIT AND OPERATION Service Manual [1] BLOCK DIAGARM 20 A Fuse Fuse Power supply circuit Smoothing circuit Filter circuit AC power Active filter circuit CPU oscillator circuit DC power supply circuit DC over voltage detection circuit Expansion valve A drive circuit Expansion valve A Expansion valve B drive circuit...

  • Page 10: Functions

    AEX2M14LR [2] FUNCTIONS 1. FREQUENCY CONTROL 2. OVER CURRENT PROTECTION 1) AC current peak control DC over current detection, AC over current detection. To protect against over current due to sudden change in load, the compressor is Cooling mode Heating mode stopped if 24A DC is exceeded in the DC section.

  • Page 11: Heating Operation

    AEX2M14LR 9. PUMP DOWN SWITCH More than More than More than When the PUMP DOWN SWITCH (SW1) is pressed for 5 seconds or 20 min. 20 min. 20 min. more, the total A/C system will start its TEST RUN automatically and the compressor frequency will be 48.3 Hz.

  • Page 12: Active Filter Circuit

    AEX2M14LR [3] ACTIVE FILTER CIRCUIT This circuit uses Active Filter Module and IPM as the figure below for the high efficiency operation of compressor. Active Filter Choke coil Rectification circuit Noise filter Compressor circuit Positional detection Voltage raise signal Sine wave current ON/OFF Compressor Control...
  • Page 13 AEX2M14LR Control Control IGBT IGBT PFC control PFC control BCN13 BCN13 Active Filter Circuit Active Filter Circuit 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.

  • Page 14: Explanation Of Ipm Drive Circuit

    AEX2M14LR [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).
  • Page 15 AEX2M14LR 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.

  • Page 16: Chapter 3. Function And Operation Of Pro- Tective Procedures Protective Functions And Opera- Tions

    CHAPTER 3. FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES [1] PROTECTIVE FUNCTIONS AND OPERATIONS Function Operation Description Detection time Restart condition Restart time door door Compressor is stopped if a current approxi- Automatically restarts During compres- DC over current mately 24A or more flows in the power tran- after safety time (180 4 times sor operation...

  • Page 17: Troubleshooting Guide

    Function Operation Description Detection time Restart condition Restart time door door When power source frequency cannot be Power factor mod- At compressor Compressor continues determined (at startup) or when power ule (Active Filter) start up, when in operation without stop- None source clock can not be detected for 1 con- clock error...
  • Page 18 3 – 3...
  • Page 19 3 – 4...
  • Page 20 CHECK METHOD CAUTION: CHECKING PRINTED CIRCUIT BOARDS (PWB) Non-insulated control circuit Do not touch the The GND terminals of the low-voltage circuits (control circuits for cabinet or bring metal microcomputer and thermistors and drive circuits for expansion valve parts into contact with and relays) on the control printed circuit board (PWB) are connected the cabinet.
  • Page 21 To measure the resistance, first remove the connector from the board. Thermistor Connector Color Connector pin Compressor thermistor CN8A No. 1 to 2 Heat exchanger pipe thermistor CN8A Orange No. 3 to 4 Outdoor temp. thermistor CN8A Green No. 5 to 6 Suction thermistor CN8A Black...
  • Page 22 3 – 7...
  • Page 23 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 ? Press the OPERATION button to start operating the air-conditioner. (Set the cooling mode to 18ºC.) Check the failure symptom with the failure Is the timer lamp of the...

  • Page 24: Chapter 4. Refrigeration Cycle

    AEX2M14LR CHAPTER 4. AEX2M14LR REFRIGERATION CYCLE Service Manual [1] REFRIGERATION SYCLE STOP valve (Liquid) UNIT B Expansion valve B Heat exchanger UNIT A Expansion valve A Heat exchanger STOP valve (Gas) OUTDOOR UNIT INDOOR UNIT Refrigeration Cycle UNIT B UNIT A INDOOR UNIT OUTDOOR UNIT Cooling...

  • Page 25: Refrigerant Pipe Installation Works

    (Running frequency: 60HZ) 1100 (Running frequency: 50HZ) 1000 1000 Outside air temp. (ºC) At Heating for AY-XPM9FR (for AE-X2M14LR) Outside air temp. (ºC) At Cooling for AY-XPM9FR (for AE-X2M14LR) [2] REFRIGERANT PIPE INSTALLATION WORKS 1. Piping 2. Air-removing Use an adapter for preventing vacuum pump oil from flowing back to INDOOR UNIT Max.

  • Page 26: Pump Down

    AEX2M14LR 8) Fully open the stop valve (gas side) with hexagon socket screw CAUTION: Execute the pump down operation using with PUMP key. Turn all the way up to contact. DOWN SWITCH. The compressor might stop on the way if pump down is operated while cooling operation mode with- 9) Disconnect the gauge manifold hose from the service port.

  • Page 27: Chapter 5. Disassembling Procedure

    AEX2M14LR CHAPTER 5. AEX2M14LR DISASSEMBLING PROCEDURE Service Manual 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 28 AEX2M14LR 7. Disconnect the 9 connectors. 10.Unfasten the nut fixing the propeller fan then remove it. Expansion valve (CN12A, CN12B): 2pcs. Remove the 5 screws fixing the control box then remove it. Thermistor (CN8A, CN8B): 2pcs. 1 screw is at the right. Fan motor (CN3): 1pc.
  • Page 29 AEX2M14LR 13.Remove the 3 screws fixing the coil for PFC then remove it How to disassemble the control box assembly NOTE: When the coil re-install, silicone grease must be paste to the 16.Cut the 3 wire fixing bands. back face of the coil. Disconnect the 7 connectors.
  • Page 30 AEX2M14LR 18.Disconnect the 5 terminals (T1, 2, 4, 6, MRY1) and 3 connectors 21.Remove the 2 screws fixing the heat sink cover then remove it. (CN14, CN2, CN13 (Active Filter)). 22.Cut a wire fixing board. 19.Remove the 3 screws fixing the power supply board unit (PWB). 23.Remove the each of 4 screws fixing the heat sink.
  • Page 31 AEX2M14LR 24.Disconnect the 5 terminals (TP, TU, TV. TW, TN) and 1 connector 25.Disconnect the 6 terminals (P, Io, +, -, L1, L2) and 1 connector (CN114) on the IPM PWB. And Remove the 2 screws fixing the (CN13) on the active filter. And Remove the 2 screws fixing the IPM PWB and remove it.
  • Page 32 AEX2M14LR MEMO 5 – 6...

  • Page 33: Outdoor Unit

    PARTS GUIDE MULITI SPLIT TYPE ROOM AIR CONDITIONERS (OUTDOOR UNIT) AE-X2M14LR MODEL 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 34 AEX2M14LR [1] OUTDOOR UNIT 2-21 2-20 1-30 2-14 6-11 2-17 2-11 2-23 1-36 2-99 2-16 2-15 6-12 1-18 1-51 2-85 2-65 2-13 2-10 2-84 2-83 2-12 2-46 6-11 2-18 2-93 6-13 2-62 2-22 1-34 2-63 2-27 1-44 2-98 2-26 2-19 6-10 1-43 1-37...
  • Page 35 AEX2M14LR PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [1] OUTDOOR UNIT CABINET AND UNIT PARTS Base pan assembly CCHS-A789JBTB Fan motor CMOTLB426JBEZ Rear cabinet assembly DCAB-A161JBTA Coil cover assembly FCOV-A330JBWZ Cabinet GCAB-A366JBTA Control box cover GFTA-A455JBTB Fan guard GGADFA042JBFA Side cover R GPLTMA059JBTB LANGKA236JBPZ...
  • Page 36 AEX2M14LR PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [1] OUTDOOR UNIT Pwb support B LPLTPA017JBFZ Heatsink support LPLTPA018JBFZ 2-10 Pwb support C LPLTPA027JBFZ 2-11 Heatsink cover PCOV-A601JBWZ 2-12 Insulator PSEL-C376JBEZ 2-13 PRDAFA215JBEZ Haet sink 2-14 Heat sink PRDAFA216JBEZ 2-15 Insulator PSEL-C037JBEZ 2-16...
  • Page 37 AEX2M14LR PRICE PART PARTS CODE DESCRIPTION RANK MARK RANK [2] CONTROL BOARD UNIT PARTS Control board unit DSGY-E095JBKZ 2-2-1 Fuse (FUSE1,101) QFS-GA065JBZZ 2-2-2 Fuse (FUSE3, 4) QFS-GA062JBZZ 2-2-3 Fuse (FUSE5) QFS-GA063JBZZ 2-2-4 Fuse (FUSE6) QFS-GA064JBZZ D2-4 VHD1SR139-6-1 Diode Normal coil (L5) RFILNA013JBZZ Common coil (L6) RFILNA007CBZZ...
  • Page 38 AEX2M14LR INDEX PRICE PART PRICE PART PARTS CODE PARTS CODE RANK MARK RANK RANK MARK RANK PGUM-A115JBEZ 1-1-21 [ C ] PGUM-A119JBEZ 1-1-22 CCHS-A789JBTB 1-1-1 PGUM-A120JBEZ 1-1-23 CCIL-A158JBKZ 1-3-1 PGUM-A121JBEZ 1-1-24 CFTA-A339JBKZ 1-1-71 PGUMS0170JBE0 1-1-26 CMOTLB426JBEZ 1-1-2 PGUMSA319JBEZ 1-1-27 CPADBA131JBKZ 4-5-2 PMUF-A091JBEZ 1-3-17...
  • Page 39 AEX2M14LR PRICE PART PARTS CODE RANK MARK RANK RH-TXA008JBZZ 1-2-93 " RH-VXA002JBZZ 2-NR1-NR3 RIC--A022BDE0 2-IC7 RIC--A025BDE0 2-IC3 IC12 RMOTSA038JBZZ 1-3-20 RRLYDA008JBZZ 2-RY1 RRLYDA010JBZZ 2-MRY1 RR-WZA028JBE0 3-R1 RTHM-A022JBE0 1-2-80 RTRN-A294JBZZ 1-1-55 RTRN-A305JBZZ 2-CT1 RTRNWA034JBZZ 2-TR1 [ S ] SPAKCC801JBEZ 4-5-1 [ T ] TINS-B240JBRZ 1-4-3 TINS-B241JBRZ...
  • Page 40 COPYRIGHT © 2009 BY SHARP CORPORATION ALL RIGHTS RESERVED. © COPYRIGHT XXXX BYSHARP CORPORATION No part of this publication may be reproduced, stored ALL RIGHTS RESERVED. in retrieval systems, or transmitted in any form or by any means, electronic, mechanical, photocopying, re-...

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