Advertisement
SPECIFICATIONS ............................................................................................................................................. 2
EXTERNAL DIMENSIONS ................................................................................................................................. 3
WIRING DIAGRAMS ......................................................................................................................................... 5
ELECTRICAL PARTS ......................................................................................................................................... 7
BLOCK DIAGRAM .............................................................................................................................................. 8
MICROCOMPUTER CONTROL SYSTEM ......................................................................................................... 9
FUNCTIONS .................................................................................................................................................... 13
FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES ............................................................... 17
BREAKDOWN DIAGNOSIS PROCEDURE .................................................................................................... 19
REFRIGERATION CYCLE ............................................................................................................................. 21
PERFORMANCE CURVES ............................................................................................................................. 22
DISASSEMBLING PROCEDURE .................................................................................................................... 23
REPLACEMENT PARTS LIST ......................................................................................................................... 30
SERVICE MANUAL
ROOM AIR CONDITIONERS
INDOOR UNIT
AH-MX122/AH-MX152
OUTDOOR UNIT
AU-MX122/AU-MX152
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.
SHARP CORPORATION
SPLIT TYPE
Page
Advertisement
Table of Contents
Related Manuals for Sharp AH-MX122
Summary of Contents for Sharp AH-MX122
-
Page 1: Table Of Contents
SERVICE MANUAL SPLIT TYPE ROOM AIR CONDITIONERS INDOOR UNIT AH-MX122/AH-MX152 OUTDOOR UNIT AU-MX122/AU-MX152 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
SPECIFICATIONS INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT MODEL ITEM AH-MX122 AU-MX122 AH-MX152 AU-MX152 Cooling capacity(Min. ~ Max.) BTU/h 9000(3600~12000) 11700(5400~15000) Moisture removal Liters/h Electrical data Phase Single Rated frequency Rated voltage range 198 to 242 Rated voltage Rated current... -
Page 3: External Dimensions
EXTERNAL DIMENSIONS INVERTER AIR CONDITIONER Length unit (mm) CRMC-A442JBE0 R03(AAA) 2PCS. SHARP CORPORATION 19.5 INDOOR UNIT 37.5 179.5 182.5 OUTDOOR UNIT... - Page 4 815 (unit size) Ceiling More than 50mm Center of wall hole: Leftward piping Center of wall hole: Backward piping Outline of indoor unit INSTALLATION DIMENSIONS...
-
Page 5: Wiring Diagrams
WIRING DIAGRAMS... -
Page 8: Block Diagram
BLOCK DIAGRAMS INDOOR UNIT DC power supply circuit AC power Fan motor phase control circuit Room fan motor WPE1 Rotation pulse input circuit Fan motor pulse detect AC clock circuit Flow direction control (louver motor upper) Louvre motor drive circuit(upper) Louvre motor drive circuit(lower) Flow direction control (louver motor lower) Remote controller signal reception circuit... -
Page 9: Microcomputer Control System
MICROCOMPUTER CONTROL SYSTEM... - Page 10 C202 CNR1 DPWBF FAN M C201 LOUVER UP THERMISTOR FROM FROM MOTOR MOTOR FROM LOUVER MOTOR LOWER (BOTTOM) FROM THERMISTOR FROM LOUVER MOTOR UPPER (TOP) FP389-DISPLAY LED121 JP101 R114 CN101 R101 LED101 LED102 Printed Wiring Board for AH-MX122 / AH-MX152...
- Page 13 FROM FROM FROM DIODE BRIDGE PTC1 DIODE BRIDGE FROM FROM DB1 " ~ " DB1 " ~ " CONTROL BOX TERMINAL BOARD " 1 " T5(DB1~) (BLACK) (BROWN) (GREEN/ YELLOW) FROM FAN MOTOR 3A 250V WPE3 FROM 4 WAY VALVE (EXCEPT FOR T6(GRAY) AU-X08BE AND...
-
Page 14: Functions
FUNCTIONS c. Temperature adjustment 1. INDOOR UNIT The temperature adjustment range is changed by 1-1 Temperature Adjustment changing the operating mode with the operation switch. a. Normal control Proportional control (P control) (1) Cooling When the temperature zone changes, this control If the room temperature is in the c zone when changes the frequency by one rank to move closer operation begins,proportional/integral control is not... - Page 15 1-6 Swing louvres Louvres are moved by stepping motors to perform swing and fixing in the set position. If the "FLOW DIRECTION" button is pressed during swing, they will stop. If the "FLOW DIRECTION" button is pressed while they are stopped, they will swing. 1-7 Restart control (Full power only) Once the compressor stops, this control prevents it...
- Page 16 (3) Details of self-diagnosis (error mode) are 1-12 Auto Restart informed by the flashing number as well as the When power failure occures, after power is lighting pattern of the operation lamp which recovered, the unit will automatically restart in the flashes with the timer lamp.(For details, refer to same setting which were active before the power Error diagnostic method.)
- Page 17 2-2 Overcurrent protection 2-3 Compressor protector control (1) Compressor lock detection If the temperature of the compressor chamber exceeds If the set value 2.7A of AC current is exceeded in 6 114°C, the compressor is stopped. In this case, the seconds when operation begins, operation is stopped.
-
Page 18: Function And Operation Of Protective Procedures
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 19 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. operation time (170 seconds) Stops the compressor if the thermistor...
-
Page 22: Refrigeration Cycle
Outdoor unit Capillary tube Silencer Compressor Condenser Accumulator Refrigeration Cycle for AH-MX122 / AH-MX152 Standard conditions: 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... -
Page 23: Performance Curves
PERFORMANCE CURVES NOTE: 1) Indoor fan speed: Hi 2) Vertical adjustment louver "45˚", Horizontal adjustment louver "front" 3) Indoor air temp. : Cooling 27˚C (Running frequency: 77Hz) 1000 Outside air temp.(˚C) At Cooling for AH-MX122 / AH-MX152... -
Page 24: Disassembling Procedure
DISASSEMBLING PROCEDURE FOR INDOOR UNIT SERVICING CAUTION : DISCONNECT THE UNIT FROM THE POWER SUPPLY BEFORE ANY 1. Open the opne panel, and remove 2 air filters. 5. Pull the front panel up. 2. Remove 4 screws fixing the front panel. 6. - Page 25 9. Remove the thermistor of the evaporator. 13. Remove the screw fixing the pipe holder. 10. Remove 4 connectors. 14. Remove 3 screws fixing the control box, and remove the control box. 11. Remove the thermistor holder from the evaporator. 15.
- Page 26 17. Remove the drain cover from the evaporator. Note: During reassembly, verify that the dew on the pipe is led to the drain pan. 20. Remove 2 screws fixing the motor cover, and pull up the fan. 18. Remove 4 screws fixing the evaporator. 21.
- Page 27 How to remove the display cover 2. Remove the screw fixing the terminal board. 1. Push the center of display cover from the back. 2. Slide the display cover to the right. How to assemble the display cover 1. Slide the left end of the display cover through 3 hooks 3.
- Page 28 Drain pan and related 1. Remove 3 screws fixing motors. Drain Hose Drain pan Projection Groove To disconned To reconnect 2. Turn the cap area of the drain hose counterclockwise, and remove it from the drain pan. During installation, turn the drain hose to the state of the “engagement position”.
- Page 29 FOR OUTDOOR MODEL SERVICING CAUTION : DISCONNECT THE UNIT FROM THE POWER SUPPLY BEFORE ANY Right side view Left side view 1. Loose a screw fixing the side cover. Front view 2. Loose the unit to unit cord. 5. Loose 6 screws fixing the front panel. 3.
- Page 30 DISASSEMBLING PROCEDURE OF THE FAN Loose 1. Loose the fan nut and fan can take out. 8. Remove the terminal cover. 2. Fan motor is secured by 4 screws. 9. Remove 3 terminals. 10. Loose 4 screws fixing the control box. 11.