Service manual
Table Of Contents
- TopPage
- SPECIFICATIONS
- EXPLANATION OF CIRCUIT AND OPERATION
- [1] BLOCK DIAGARM
- [2] FUNCTIONS
- 1. FREQUENCY CONTROL
- 2. OVER CURRENT PROTECTION
- 3. COMPRESSOR PROTECTION CONTROL
- 4. POWER TRANSISTOR MODULE PROTECTION
- 5. SERIAL SIGNALS
- 6. THERMISTOR OPEN OR SHORT
- 7. MISWIRING CHECK
- 8. SAFETY TIME
- 9. PUMP DOWN SWITCH
- 10. CONTROL OF COMPRESSOR OR AND EXPANSION VALVE
- 11. DEFROST OPERATION
- 12. Power factor module Output voltage
- [3] ACTIVE FILTER CIRCUIT
- [4] EXPLANATION OF IPM DRIVE CIRCUIT
- FUNCTION AND OPERATION OF PROTECTIVE PROCEDURES
- REFRIGERATION CYCLE
- DISASSEMBLING PROCEDURE
- PartsGuide
- EndPage
AEX3M18JR
5 – 1
AEX3M18JR
Service Manual
CHAPTER 5. DISASSEMBLING PROCEDURE
[1] OUTDOOR UNIT
CAUTION: DISCONNECT THE UNIT FROM POWER SUPPLY BEFORE ANY SERVICING.
1. PROCEDURE
1. Remove the 2 screws fixing the pipe cover then remove it.
2. Remove the 3 screws fixing the control box cover then remove it.
3. Remove the 6 screws fixing the side cover R then remove it.
4. Remove the 4 screws fixing the fan guard then remove it and
remove the 7 screws fixing the cabinet then remove it.
3 screws are at the left.
2 screws are at the right.
1 screw is at the front.
1 screw is at the rear.
5. Remove the 3 screws fixing the control box angle then remove it.
CAUTION: DISCHARGE ELECTROLYTIC CAPACITOR BEFORE
TOUCHING THIS CAPACITOR OR OTHER COMPO-
NENTS OR WIRINGS.
6. Cut the 2 wire fixing bands.