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
2
[1] OUTDOOR UNIT
4-1
4-5
6-5
6-5
1-6
1-65
1-62
6-5
2-7
2-2
2-2
2-3
2-17
2-11
2-16
6-11
6-11
6-12
2-10
2-84
2-26
2-6
6-10
2-19
2-5
2-98
2-8
2-22
2-2
2-9
2-99
2-93
2-12
2-65
2-15
2-23
2-20
2-21
2-9
2-85
1-34
6-13
2-62
2-63
2-18
2-4
2-1
2-27
2-83
6-9
6-2
4-2
1-36
1-67
1-38
1-39
1-37
1-69
1-40
1-71
1-8
1-76
1-18
1-51
6-5
6-5
2-2
2-46
6-13
6-5
6-6
1-45
1-44
1-43
3-15
1-10
1-47
1-48
6-6
2-13
2-14
1-12
1-42
6-4
1-31
1-73
1-34
1-32
1-50
1-26
3-11
2-67
1-14
6-1
3-1
3-19
1-54
1-21
1-22
2-66
1-24
1-23
6-13
1-1
3-7
3-20
3-21
3-18
6-8
3-17
3-14
1-15
3-8
3-16
2-80
1-16
1-13
1-16
1-27
1-4
1-55
6-4
6-13
1-53
1-52
6-3
6-3
6-5
1-59
1-28
3-6
3-5
1-19
1-68
1-20
1-57
1-58
3-4
3-2
3-3
3-9
3-9
3-10
3-12
3-13
3-10
1-60
1-66
1-46
6-5
1-77
6-4
6-13
6-14
6-7
1-2
1-17
1-5
1-11
1-41
1-9
6-13
6-13
6-13
6-13
6-13
6-13
6-5
1-7
6-13
1-61
1-64
1-35
1-25
1-49
2-67
6-5
6-5
6-5
1-30
1-3
4-4
4-6
4-3
1-63
1-72
2-28
6-13
1-56