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SPECIFICATIONS ............................................................................................................................................ 2
EXTERNAL DIMENSIONS ................................................................................................................................. 4
WIRING DIAGRAMS ......................................................................................................................................... 5
ELECTRICAL PARTS ........................................................................................................................................ 7
BLOCK DIAGRAM ............................................................................................................................................. 8
FUNCTIONS .................................................................................................................................................... 14
FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES ............................................................... 21
BREAKDOWN DIAGNOSIS PROCEDURE .................................................................................................... 28
REFRIGERATION CYCLE ............................................................................................................................. 25
PERFORMANCE CURVES ............................................................................................................................ 28
DISASSEMBLING PROCEDURE ................................................................................................................... 30
OPTION ........................................................................................................................................................... 39
REPLACEMENT PARTS LIST ......................................................................................................................... 40
SERVICE MANUAL
ROOM AIR CONDITIONERS
MODELS
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.

TABLE OF CONTENTS

SHARP CORPORATION
1
SPLIT TYPE
INDOOR UNIT
AH-X079E/X099E
AY-X079E/X099E
OUTDOOR UNIT
AU-X079E/X099E
AE-X079E/X099E
AH-X079E/X099E
AY-X079E/X099E
S2912AYX099E/
Page

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Table of Contents
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Summary of Contents for Sharp AH-X079E

  • Page 1: Table Of Contents

    AH-X079E/X099E AY-X079E/X099E SERVICE MANUAL S2912AYX099E/ SPLIT TYPE ROOM AIR CONDITIONERS INDOOR UNIT AH-X079E/X099E MODELS AY-X079E/X099E OUTDOOR UNIT AU-X079E/X099E AE-X079E/X099E 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: Specifications

    AH-X079E/X099E AY-X079E/X099E SPECIFICATIONS ITEMS INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT AH-X079E AU-X079E AH-X099E AU-X099E Cooling capacity 2.1(0.7 - 2.6) 2.6(0.7 - 2.9) Moisture removal Liters/h Electrical data Phase – Single Rated frequency Rated voltage range 198 to 264...
  • Page 3 AH-X079E/X099E AY-X079E/X099E ITEMS INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT AY-X079E AE-X079E AY-X099E AE-X099E Cooling capacity 2.1(0.7 - 2.6) 2.6(0.7 - 2.9) Heatpump 3.2(0.7 - 3.6) 3.4(0.7 - 4.0) Heating capacity Moisture removal Liters/h Electrical data Phase – Single...
  • Page 4: External Dimensions

    AH-X079E/X099E AY-X079E/X099E EXTERNAL DIMENSIONS AY-F22SE INVERTER AIR CONDITIONER Length unit (mm) CRMC-A442JBE0 R03(AAA) 2PCS. FULL POWER SHARP CORPORATION Power supply cord Right : 1.8m Left : 1.1m 19.5 Figure E-1. INDOOR UNIT AU-F22SEY 5hole 10.5 Length (mm) Figure E-2. OUTDOOR UNIT...
  • Page 5 AH-X079E/X099E AY-X079E/X099E Unit: mm The front position of auxiliary pipe is stamped on the installation plate. It is used as a position mark when the piping is connected. At a distance equal to the scale stamped on the installation plate...
  • Page 6: Wiring Diagrams

    AH-X079E/X099E AY-X079E/X099E WIRING DIAGRAMS...
  • Page 7: Electrical Parts

    AH-X079E/X099E AY-X079E/X099E ELECTRICAL PARTS For Model AH-X079E/X099E, AU-X079E/X099E, AY-A079E/X099E and AE-A079E/X099E DESCRIPTION MODEL REMARKS SITE Indoor fan motor ML-A486 220 - 240V, 50Hz AH, AY Indoor fan motor capacitor – 430V, 1.5µF AH, AY Transformer – Primary; AC 230V, 50Hz AH, AY Secondary;...
  • Page 8: Block Diagram

    AH-X079E/X099E AY-X079E/X099E BLOCK DIAGRAMS INDOOR UNIT for AH-X075E/X095E and AY-X075E/X095E DC power supply circuit AC power 2.5 A Fan motor phase control circuit Room fan motor FUSE Rotation pulse input circuit Fan motor pulse detect AC clock circuit Flow direction control...
  • Page 9 AH-X079E/X099E AY-X079E/X099E OUTDOOR UNIT for AU-X075E/X095E and AE-X075E/X095E 13 A protection Power supply Unit-unit Smoothing Active filter Filter circuit (built wiring (AC circuit circuit circuit into IPM) power and serial signals) CPU oscillator circuit protection Outdoor fan relay drive Outdoor fan...
  • Page 10 AH-X079E/X099E AY-X079E/X099E MICROCOMPUTER CONTROL SYSTEM...
  • Page 11 AH-X079E/X099E AY-X079E/X099E M B 8 9 8 5 5...
  • Page 12 AH-X079E/X099E AY-X079E/X099E 2.5A 250V FUSE CNR1 JP10 IC80 C80 R12 JP26 JP99 OUT TH 07 / 09 HOT KEEP JP11 WIRELESS PREHEAT RATE C RATE H JP12 JP28 JP29 JP30 Figure L-3 Printed Wiring Board for AH-X079E/X099E and AY-X079E/X099E...
  • Page 13 AH-X079E/X099E AY-X079E/X099E Figure L-4 Printed Wiring Board for AU-X079E/X099E and AE-X079E/X099E...
  • Page 14: Functions

    AH-X079E/X099E AY-X079E/X099E FUNCTIONS b. Initial control AH-X079E/X099E are not provided with the The initial frequency is determined as shown in heating function. the tables below based on the difference between the temperature adjustment setting at the beginning of operation and the room temperature.
  • Page 15 AH-X079E/X099E AY-X079E/X099E AH-X099V AH-X099A 1-2 Indoor fan control HEATING This control uses the thermistor for the indoor heat exchanger to control cold air blowing prevention, the Fan speed : High / Med / Low indoor fan, and overheating prevention. High D - H (˚C)
  • Page 16 AH-X079E/X099E AY-X079E/X099E 1-3 Hot keep *During Cooling / Dry If the room temperature is in the j or k zone during Timer set time heating, the compressor is turned on and off to prevent overheating. Room Zone Compressor intermittent time temperature 3 min.
  • Page 17 AH-X079E/X099E AY-X079E/X099E 1-12 Power ON start 1-15 Auto Restart If a jumper wire is inserted into the place indicated When power failure occures, after power is JP99 on the indoor control board, and the power recovered, the unit will automatically restart in the plug is inserted.
  • Page 18 AH-X079E/X099E AY-X079E/X099E AU-X079E/X099E are not provided with the heating function. 2. OUTDOOR UNIT 2-1 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.
  • Page 19 AH-X079E/X099E AY-X079E/X099E 2-2 Frequency control (1) AC current peak control Set value (Normal) Model During cooling During heating 5.8A AU-X079E AU-X099E 6.0A 6.3A AE-X079E 5.8A AE-X099E 6.0A 6.5A (2) Control for prevention of indoor heat exchanger overheating If the temperature of the indoor heat exchanger exceeds the overheating prevention line 1 or 2 during heating, the operating frequency is lowered by approximately 5 to 10 Hz.
  • Page 20 AH-X079E/X099E AY-X079E/X099E 2-3 Overcurrent protection (1) Compressor lock detection If the set value (3.0 A) of AC current is exceeded at 10 to 30 Hz when operation begins, operation is stopped. In this case, the compressor outdoor fan does not stop, and 170 seconds after operation is stopped, another try will be made.
  • Page 21: Function And Operation Of Protective Procedures

    AH-X079E/X099E AY-X079E/X099E FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES Operation Self diagnostic display Function Description Detection Restart Restart Indoor Outdoor time condition times Indoor fan Stops operation if no revolution pulse When indoor Operation OFF No limit lock signal is input from the indoor fan motor for fan is revolving one minute.
  • Page 22 AH-X079E/X099E AY-X079E/X099E Operation Self diagnostic display Function Description Detection Restart Restart Indoor Outdoor time condition times Compressor Lowers the operating frequency if the During Automatically No limit overheating temperature of the compressor chamber compressor restarts after safety control thermistor (TH1) rises above 105°C.
  • Page 23 AH-X079E/X099E AY-X079E/X099E...
  • Page 24 AH-X079E/X099E AY-X079E/X099E...
  • Page 25: Refrigeration Cycle

    Indoor unit Evaporator Flare coupling Flare coupling valve valve Strainer Outdoor unit Capillary tube Silencer Compressor Condenser Accumulator Figure R-1. Refrigeration Cycle for AH-X079E/X099E Indoor unit Evaporator Flare coupling Flare coupling valve valve Silencer Strainer Outdoor unit Capillary tube Accumulator Heating...
  • Page 26 AH-X079E/X099E AY-X079E/X099E Standard conditions: AH-X079E / AH-X099E Indoor side Outdoor side Dry-bulb Temp. (˚C) Relative Humidity (%) Dry-bulb Temp. (˚C) Relative Humidity (%) Cooling Temperature at each part and pressure in 3-way valve AH-X079E AH-X099E Operation Cool Operation Cool Cool...
  • Page 27 AH-X079E/X099E AY-X079E/X099E Standard conditions: AY-X079E / AY-X099E Indoor side Outdoor side Dry-bulb Temp. (˚C) Relative Humidity (%) Dry-bulb Temp. (˚C) Relative Humidity (%) Cooling Heating Temperature at each part and pressure in 3-way valve AY-X079E Operation Cool Heat Cool Heat mode (Max.)
  • Page 28: Breakdown Diagnosis Procedure

    2) Vertical adjustment louver "45˚", Horizontal adjustment louver "front" 3) Indoor air temp. : 27˚C (Running frequency: 88Hz) (Running frequency: 52HZ) 1200 1200 1000 1000 Outside air temp.(˚C) Outside air temp.(˚C) Figure P-1. At Cooling for AH-X079E Figure P-2. At Cooling for AH-X099E...
  • Page 29 AH-X079E/X099E AY-X079E/X099E NOTE: 1) Indoor fan speed: Hi 2) Vertical adjustment louver "45˚", Horizontal adjustment louver "front" 3) Indoor air temp. : Cooling 27˚C, Heating 20˚C (Running frequency: 70Hz) (Running frequency: 53Hz) 1200 1200 1000 1000 Outside air temp.(˚C) Outside air temp.(˚C) Figure P-4.
  • Page 30: Disassembling Procedure

    AH-X079E/X099E AY-X079E/X099E DISASSEMBLING PROCEDURE FOR INDOOR UNIT MODEL AH-X079E/X099E AND AY-X079E/X099E CAUTION: DISCONNECT THE UNIT FROM THE POWER SUPPLY BEFORE ANY SERVICING 1. Using the narrow slotted screwdriver or similar, remove 3. Open the open panel, and remove the right air filter.
  • Page 31 AH-X079E/X099E AY-X079E/X099E 6. After closing the open panel, open the vertical 9. Remove the control box cover. adjustment louver and pull out the bottom of the front Holding its bottom, pull and disengage the upper hook panel toward you. toward the bottom.
  • Page 32 AH-X079E/X099E AY-X079E/X099E 12. Remove the thermostat of the evaporator. 15. Remove six fastening screws of the control box, and (Pull it out after peeling off the thermoseal.) remove the control box. 16. Remove the fastening screws of the drain pan. (Two 13 Cut the tie band of the lead wire.
  • Page 33 AH-X079E/X099E AY-X079E/X099E 18. Pull down the drain pan toward you for removal. 21. Loosen the fan fastening screw, and remove the fan. 19. Remove two fastening screws of the evaporator. <Cautionary points for assembling the fan> a. When inserting the motor shaft into the metal fan 20.
  • Page 34 AH-X079E/X099E AY-X079E/X099E 22. To remove the evaporator, remove the tube holder on Remove the cord holder fastening screw of the power the rear side of the cabinet, slightly lift the left side, slide supply cord. it to the right, and remove it from the cabinet, pulling it toward you.
  • Page 35 AH-X079E/X099E AY-X079E/X099E Remove the board fastening screws. Drain pan and related How to remove the gear box assembly Remove two screws which fasten the gear box assembly. Note When installing the gear box assembly, fit it, aligning the notch shape of the groove of the vertical adjusment louver.
  • Page 36 AH-X079E/X099E AY-X079E/X099E SERVICING PROCEDURE FOR OUTDOOR UNIT MODEL AU-X079E/X099E AND AE-X079E/X099E CAUTION: DISCONNECT THE UNIT FROM THE POWER SUPPLY BEFORE ANY SERVICING 3. Remove the front panel assembly. 1. Remove the lid of the control box. (2 screws) Pulling the bottom toward you, disengage 3 hooks on Disconnect the unit-to-unit wiring from the terminal the rear surface.
  • Page 37 AH-X079E/X099E AY-X079E/X099E 6. Disconnect the connector. (3 places) 9. Remove 2 screws which fasten the motor angle. Disconnect the Faston terminal. (9 places) Pull up the motor angle for removal. Remove the 3 screws of the control PWB, and the...
  • Page 38 AH-X079E/X099E AY-X079E/X099E 13. Remove the compressor cover. 15. Remove the front panel assembly. Orifice 2 screws 4 hooks Control cover 4 screws Wire guard 4 screws Remove these screws and disengage these hooks. 4 screws 2 screws 14. Remove the thermostat of the heat exchanger.
  • Page 39 AH-X079E/X099E AY-X079E/X099E OPTION HOW TO REPLACE THE AIR PURIFYING FILTER (AZ-F905; (2-sheet package) Electrostatic Type Precautions » The filters are sealed in a plastic bag to keep thier dust collection effect. Do not open the bag until using the filters. (Otherwise the filters’ life may get shorter.) »...
  • Page 40: Replacement Parts List

    2- 7 HPNLCA595JBEA Control panel 2- 8 PCOV-A278JBF0 LED holder 2- 9 LPLTMA147JBW0 Control box angle 2-10 DPWBFA145JBK0 Electric control board [AH-X079E] 2-10 DPWBFA144JBK0 Electric control board [AH-X099E] 2-10 DPWBFA143JBK0 Electric control board [AY-X079E] 2-10 DPWBFA142JBK0 Electric control board [AY-X099E] 2-11...
  • Page 41 PSEN-A005JBK0 Flare nut assembly (3/8") 3- 4 PVLV-0341JBE0 Flare union (1/4") 3- 5 PVLV-0342JBE0 Flare union (3/8") 3- 6 DEVA-A022JBK0 Evaporator assembly [AH-X079E/AY-X079E] 3- 6 DEVA-A086JBK0 Evaporator assembly [AH-X099E/AY-X099E] ACCESSORY PARTS 4- 1 CRMC-A447JBE0 Remote controller [AH-X079E/X099E] 4- 1 CRMC-A442JBE0...
  • Page 42 AH-X079E/X099E AU-X079E/X099E INDOOR UNIT AH/AY-X079E/X099E 1-35 1-26 4-11 1-32 4-10 1-41 4-13 1-40 1-39 2-11 1-20 1-38 2-12 1-37 2-13 1-17 2-10 1-36 1-16 1-18 1-14 1-15 1-10 1-34 1-2 1-7 1-19 1-21 1-12 1-29 1-30 1-11 1-25 1-22 1-25...
  • Page 43 AH-X079E/X099E AU-X079E/X099E REPLACEMENT PARTS LIST [AU/AE-X079E/X099E] REF. NO. PART NO. DESCRIPTION Q'TY CODE CONTROL BOX PARTS 1- 1 CMOTLA485JBE0 Fan motor 1- 2 RTRN-A223JBE0 Current transfoemer CT1 1- 3 CCIL-A082JBE0 Coil assembly [AE-X079E/X099E only] 1- 4 DPWBFA147JBK0 Electric control board...
  • Page 44 AH-X079E/X099E AU-X079E/X099E REF. NO. PART NO. DESCRIPTION Q'TY CODE 2-20 TLABKC345JBR0 Number card [AE-X079E] 2-20 TLABKC343JBR0 Number card [AE-X099E] 2-21 TSPC-C952JBR0 Name badge [AU-X079E] 2-21 TSPC-C951JBR0 Name badge [AU-X099E] 2-21 TSPC-C950JBR0 Name badge [AE-X079E] 2-21 TSPC-C924JBR0 Name badge [AE-X099E] 2-22...
  • Page 45 AH-X079E/X099E AU-X079E/X099E OUTDOOR UNIT AU-X079E/X099E 1-28 1-47 1-14 1-26 1-13 1-11 1-27 1-23 1-24 1-12 1-28 1-46 1-22 1-59 1-25 2-14 1-10 1-21 2-26 1-19 1-29 2-15 2-27 3-16 2-18 2-21 1-16 2-17 4-10 3-13 2-16 2-23 3-14 2-19 2-25...
  • Page 46 AH-X079E/X099E AU-X079E/X099E OUTDOOR UNIT AE-X079E/X099E 1-28 1-47 1-14 1-26 1-13 1-11 1-27 1-23 1-24 1-12 1-28 1-46 1-22 1-59 1-25 2-14 1-10 1-21 2-26 1-19 2-31 2-28 1-29 2-30 2-15 2-27 3-16 2-18 2-21 3-20 1-16 2-17 3-22 4-10 2-16...
  • Page 47 AH-X079E/X099E AU-X079E/X099E...
  • Page 48 AH-X079E/X099E AU-X079E/X099E '99 SHARP CORP. (2U1.00E) Printed in the Netherlands...

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