Table Of Contents - Mitsubishi Electric MXZ-2D33VA-E1 Service Manual

Table of Contents

Table Of Contents1
Outdoor Unit1
Service Manual1
Preparation Before The Repair Service2
Precautions During The Repair Service2
Technical Changes2
Part Names And Functions6
Specification7
Noise Criteria Curves17
Outlines And Dimensions20
Service Space24
Refrigerant System Diagram25
Max Refrigerant Piping Length26
Additional Refrigerant Charge26
Pumping Down34
Actuator Control35
Relation Between Main Sensor And Actuator35
Service Functions36
The Position Of Switch36
Locking The Operation Mode Of The Air Conditioner36
How To Lock The Operation Mode36
Lowering The Operating Noise Of The Outdoor Unit37
How To Lower The Operating Noise37
Automatic Line Correcting37
Incorrect Wiring37
How To Activate This Function38
Led Indication During Detection38
Led Indication After Detection38
Led Indication After Cancel39
Pre-Heat Contro40
Changing The Ampere Limit41
How To Change The Ampere Limit41
Sw2 On The Outdoor Control P.c. Board41
Troubleshooting42
Cautions On Troubleshooting42
Failure Mode Recall Function42
Flow Chart Of The Detailed Outdoor Unit Failure Mode Recall Function43
Operational Procedure43
Outdoor Unit Failure Mode Table44
Instruction Of Troubleshooting48
Troubleshooting Check Table49
Trouble Criterion Of Main Parts55
Defrost Thermistor (Rt61)55
Discharge Temperature Thermistor55
Compressor55
Troubleshooting Flow56
Check Of Power Supply56
How To Check Miswiring And Serial Signal Error58
How To Check Inverter/Compressor60
Check Of Outdoor Thermistors61
Check Of Lev62
Check Of Outdoor Fan Motor63
Check Of R.v. Coil66
When Heating Operation Does Not Operate67
When Cooling Operation Does Not Operate67
Check Of Bus-Bar Voltage71
The Other Cases72
Check Of Outdoor Refrigerant Circuit72