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Sharp AH-M098E Service Manual

Multi split system room air conditioners
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SPECIAFICATIONS ............................................................................................................................................................. 2
EXTERNAL DIMENSIONS ................................................................................................................................................... 3
WIRING DIAGRAMS ............................................................................................................................................................ 4
ELECTRICAL PARTS .......................................................................................................................................................... 5
MICROCOMPUTER CONTROL SYSTEM .......................................................................................................................... 6
TROUBLE SHOOTING OF CONTROL CIRCUIT .............................................................................................................. 14
REFRIGERATON CYCLE .................................................................................................................................................. 19
DISASSEMBLING PROCEDURE ...................................................................................................................................... 20
TROUBLESHOOTING OF THE CONTROL CIRCUIT ...................................................................................................... 21
REPLACEMENT PARTS LIST ........................................................................................................................................... 25
SERVICE MANUAL
MULTI SPLIT SYSTEM
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.

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SHARP CORPORATION
1
INDOOR UNIT
AH-M098E
(2 INITS)
OUTDOOR UNIT
AU-M188E
AH-M098E
AU-M188E
S8862AHM098E/
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  • Page 1: Table Of Contents

    AH-M098E AU-M188E SERVICE MANUAL S8862AHM098E/ MULTI SPLIT SYSTEM ROOM AIR CONDITIONERS INDOOR UNIT AH-M098E MODEL (2 INITS) OUTDOOR UNIT AU-M188E 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: Speciafications

    AH-M098E AU-M188E SPECIFICATIONS ITEMS INDOOR UNIT OUTDOOR UNIT AH-M098E AU-M188E Cooling capacity [1Unit] 2.5, [2Unit] 2.4 x 2 Moisture removal Liters/h 1.2 x 2 Electrical data Phase Single Rated frequency Rated voltage range 198 to 264 Rated voltage 220 - 240 Rated current [1Unit] 4.1 - 4.1, [2Unit] 7.6 - 7.5...

  • Page 3: External Dimensions

    AH-M098E AU-M188E EXTERNAL DIMENSIONS 19.5 Length unit (mm) Remote controll Figure E-1. INDOOR UNIT Figure E-2. OUTDOOR UNIT...

  • Page 4: Wiring Diagrams

    AH-M098E AU-M188E WIRING DIAGRAMS Figure W-1. Wiring Diagram for AH-M098E RELAY ( A ) INTERNAL THERMOSTAT MOTOR BASIC RELAY DIAGRAM SURGE FAN CAPACITOR G(Y) ABSORBER 460V 4µF INDOOR OVERLOAD TERMINAL UNIT A RELAY BOARD BK C COMPRESSOR MOTOR OVERLOARD RELAY...

  • Page 5: Electrical Parts

    AH-M098E AU-M188E ELECTRICAL PARTS For Model AH-M098E and AU-M188E DESCRIPTION MODEL REMARKS SITE Compressor 2PS154D3AA01 220 - 240V, 50Hz, 700W Indoor fan motor ML-A411 220 - 240V, 50Hz Outdoor fan motor ML-A457 220 - 240V, 50Hz Indoor fan motor capacitor 400V, 1µF...

  • Page 6: Microcomputer Control System

    AH-M098E AU-M188E MICROCOMPUTER CONTROL SYSTEM...
  • Page 7 AH-M098E AU-M188E...
  • Page 8 AH-M098E AU-M188E Figure L-2-2. Printed Wiring Board of Receiver & LED Unit Figure L-2-3. Printed Wiring Board of Switch Unit...
  • Page 9 AH-M098E AU-M188E MICROCOMPUTER CONTROL SYSTEM 1. Temperature control characteristic 2. Operation modes Operation COOL Operation COOL In the mode “COOL”, the thermostat circuit is The compressor turns on or off, at the controlled by four thermostat lines (C1 ~ C4).
  • Page 10 AH-M098E AU-M188E 4. Freeze preventive When the indoor pipe temperature falls below -1˚C during cool operation or dry operation, the compressor States 1 & 5 : Cooling zone States 2 & 4 : Dehumidifying zone is stopped. State 3 : Circulating zone 5.
  • Page 11 AH-M098E AU-M188E 6. Timer 8. Automatic fan speed control 6-1 24-HOURS PROGRAMMABLE ON/OFF TIMER If the automatic fan speed is selected in cool operation, ON-TIMER or OFF-TIMER can be independently the fan speed is automaatically shanged according to programmed. the thermostat line C1 C2, snd C3.
  • Page 12 AH-M098E AU-M188E 12.Trouble suspension When indoor fan motor is out of order or compressor-lock occurs, the compressor, indoor fan motor, outdoor fan motor, and louver are all stopped and the operation LED(red) turns off and the timer LED(yellow) turns on or off as follows.
  • Page 13 AH-M098E AU-M188E Table H-5 Lamps Louver Indoor Step Output for outdoor unit Fan motor YELLOW OPEN Flickering CLOSE (ON) (Back to step 1) : 7˚C Room temp. 42˚C : 7˚C (Room temp.) or (Room temp.) 42˚C : –2˚C Pipe temp.

  • Page 14: Trouble Shooting Of Control Circuit

    AH-M098E AU-M188E TROUBLESHOOTING OF A CONTROL CIRCUIT The machine does not function at all with remote controller and switches on the indoor unit. Å@ Using a tester, measure the measure the secondary voltage voltage between terminal " 1 " of transformer.
  • Page 15 AH-M098E AU-M188E The machine does not function with the remote controll. Push the "OI(ON/OFF)"button on the wireless remote controll. Is transmitting Are batteries of the indicator of the remote wireless remote controll controller active ? proper ? Replace the batteries with new ones.
  • Page 16 AH-M098E AU-M188E CHARACTERISTIC OF TH1 & TH2 The room is not cooled at all or not cooled. The compressor does not operate. Push the "TEST RUN" button on the indoor unit, and wait 3 minutes. 10˚C Using a tester, measure voltage at the terminals on the terminal board.
  • Page 17 AH-M098E AU-M188E REFRIGERATION CYCLE Indoor unit B Indoor unit A Evaporator Evaporator Flare coupling Flare coupling Flare coupling Flare coupling Service port Service port OUtdoor unit Flare coupling Flare coupling Flare coupling Flare coupling Muffler Muffler Compressor A Compressor A...
  • Page 18 AH-M098E AU-M188E Cycle temperature and service port pressure (ISO Cooling) Cooling 1 unit running 2 unit running 73˚C 71˚C 42˚C 41˚C 12˚C 12˚C 7˚C 6˚C 0.50MPa 0.50MPa Service port pressure Gauge pressure SO Cooling and Heatpump condition Indoor side Outdoor side Temperature (˚C)

  • Page 19: Refrigeraton Cycle

    3 0 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 Outside air temp.(˚C) Outside air temp.(˚C) Cooling capacity per 1 unit Figure P-1. At Cooling for AH-M098E Figure P-1. At Cooling for AH-M098E (1 Unit running) (2 Unit running)

  • Page 20: Disassembling Procedure

    AH-M098E AU-M188E REFRIGERANT PIPE INSTALLATION WORKS Refrigerant pipe length and level difference between the indoor and outdoor units. PIPE SIZE STANDARD PEERMISSIBLE PEERMISSIBLE LEVEL LENGHT DIFFERENCE LIQUID 3/8" 1/4" 7m (23.0ft) 5m (16.4ft) The shorter the refrigerant pipe, the higher the machine capability. Keep the pipe as short as possible.

  • Page 21: Troubleshooting Of The Control Circuit

    AH-M098E AU-M188E DISASSEMBLING PROCEDURE FOR INDOOR UNIT MODEL AH-M098E CAUTION: DISCONNECT THE UNIT FROM THE POWER SUPPLY BEFORE ANY SERVICING 1. Set the vertical adjustment louver horizontally and 4. Loosen a screw and take out the cord holder. open the panel.
  • Page 22 AH-M098E AU-M188E 7.Loosen the earth screw. 10.Loosen a screw fixing drain cover and take it out. 8.Loosen 4 screws fixing control box. 11.Loosen a screw fixing drain pan ass'y. (Right side) 9.Take out the contorol box ass'y. 12.Loosen 2 screws fixing drain pan ass'y. (Left side)
  • Page 23 AH-M098E AU-M188E 13.Take out the drain pan ass'y. 16.Loosen 2 screws fixing fan motor holder, and take out fan motor and cross flow fan. 14.Loosen 2 screws fixing evaporator. 17.Loosen a screw connecting cross flow fan to fan motor. 15.Lift up the evaporator.
  • Page 24 AH-M098E AU-M188E OUTDOOR UNIT CAUTION:DISCONNECT THE UNIT FROM THE POWER SUPPLY BEFORE ANY SERVICING 5. Remove the screws holding the left and right side of 1. Remove the screw holding the left side plate and pull it the cabinet. out.

  • Page 25: Replacement Parts List

    AH-M098E AU-M188E REPLACEMENT PARTS LIST [AH-M098E] REF. NO. PART NO. DESCRIPTION Q'TY CODE CABINET AND UNIT PARTS 1- 1 CMOT-A221JBK0 Fan motor sub assembly 1- 2 NFANCA042JBE0 Cross flow fan 1- 3 CSRA-A352JBK0 Drain pan assembly 1- 4 MJNTPA040JBFB Louver link...
  • Page 26 AH-M098E AU-M188E REF. NO. PART NO. DESCRIPTION Q'TY CODE 2-34 RMPTEA031JBE0 Capacitor array (CA1, CA2) 2-35 RMPTEA025JBE0 Resistor cap array (RCM) 2-36 RCRS-A032JBE0 Ceramic oscillator (OSC) 2-37 QFS-AA013JBE0 Fuse 250V 2.5A CYCLE PARTS 3- 1 CPIPCA297JBK0 Pipe assembly 3- 2...
  • Page 27 AH-M098E AU-M188E INDOOR UNIT FOR MODEL AH-M098E 4-11 4-12 1-48 1-41 2-10 2-12 2-16 1-43 1-42 1-19 2-13 2-19 2-10 1-33 1-37 2-18 2-11 6-1 2-14 1-40 2-20 2-15 1-15 1-49 1-47 1-36 1-46 1-38 1-25 1-12 1-39 1-10 1-45...
  • Page 28 AH-M098E AU-M188E REPLACEMENT PARTS LIST [AU-M188E] REF. NO. PART NO. DESCRIPTION Q'TY CODE CABINET AND UNIT PARTS 1- 1 LSUB-A012JBP0 Motor stay sub angle 1- 2 CMOTLA457JBE0 Fan motor 1- 3 NFANPA037JBFA Propeller fan 1- 4 LANGKA043JBP0 Motor stay angle...
  • Page 29 AH-M098E AU-M188E OUTDOOR UNIT FOR MODEL AU-M188E 1-16 3-19 2-10 3-18 1-14 1-17 3-17 3-15 3-19 3-18 3-13 3-11 3-22 3-17 3-15 3-21 2-18 2-26 2-29 3-16 3-14 1-12 1-10 1-15...
  • Page 30 AH-M098E AU-M188E...
  • Page 31 AH-M098E AU-M188E...
  • Page 32 AH-M098E AU-M188E '98 SHARP CORP. (8U0.20E) Printed in Japan...

This manual is also suitable for:

Au-m188e

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