Table Of Contents - Mitsubishi Electric MXZ-2F33VF-E1 Service Manual

Table of Contents

Table Of Contents1
Outdoor Unit1
Service Manual1
Preparation Before The Repair Service2
Precautions During The Repair Service2
Technical Changes3
Safety Precaution3
Meanings Of Symbols Displayed On The Unit3
Cautions Related To New Refrigerant3
Warning For Service5
Cautions For Service5
Additional Refrigerant Charge5
Cylinder With A Siphon Tube5
Cautions For Unit Using R32 Refrigerant6
Information On Servicing6
Repairs To Sealed Components6
Checks On Electrical Devices6
Repair To Intrinsically Safe Components7
Cabling7
Detection Of Flammable Refrigerants7
Leak Detection Methods7
Labelling8
Recovery8
Service Tools9
Cautions For Refrigerant Piping Work10
Thickness Of Pipes10
Dimensions Of Flare Cutting And Flare Nut10
Flare Cutting Dimensions10
Choosing The Outdoor Unit Installation Location11
Minimum Installation Area11
Create An Appropriate Ventilation Open Area12
Indoor Units12
Part Names And Functions13
Accessories13
Specification14
Noise Criteria Curves20
Outlines And Dimensions22
Wiring Diagram25
Refrigerant System Diagram29
Max Refrigerant Piping Length29
Heating30
Method Of Charging Refrigerant34
Pumping Down34
Performance Curves35
Main Readings35
How To Measure The Indoor Air Wet And Dry Bulb Temperature Difference35
Capacity And The Input Curves36
Cooling Capacity36
Total Input (Cooling)36
Heating Capacity36
Total Input (Heating)37
Capacity And Input Correction By Inverter Output Frequency38
15-Class Unit39
18-Class Unit39
20-Class Unit39
22-Class Unit39
35-Class Unit40
How To Operate Fixed-Frequency Operation48
Outdoor Low Pressure And Outdoor Unit Current Curve48
Cool Operation48
Actuator Control56
Relation Between Main Sensor And Actuator56
Service Functions57
The Position Of Switch57
Locking The Operation Mode Of The Air Conditioner57
How To Set Low Standby Power Mode58
Lowering The Operating Noise Of The Outdoor Unit58
How To Lower The Operating Noise58
Automatic Line Correcting59
Incorrect Wiring59
Incorrect Piping59
How To Activate This Function60
Troubleshooting61
Cautions On Troubleshooting61
Failure Mode Recall Function61
Flow Chart Of The Detailed Outdoor Unit Failure Mode Recall Function62
Table Of Outdoor Unit Failure Mode Recall Function63
Instruction Of Troubleshooting65
Troubleshooting Check Table66
Trouble Criterion Of Main Parts70
Defrost Thermistor (Rt61)70
Discharge Temperature Thermistor70
Compressor70
Troubleshooting Flow71
Check Of Power Supply71
How To Check Miswiring And Serial Signal Error72
Check Of R.v. Coil74
When Cooling Operation Does Not Work75
When Healing Operation Does Not Work75
Check Of Lev76
How To Check Inverter/Compressor77
Check Of Outdoor Thermistors78
Check Of Outdoor Fan Motor79
Check Of Hps81
The Other Cases81
Check Of Bus-Bar Voltage81
Check Of Outdoor Refrigerant Circuit82
Test Point Diagram And Voltage83
Inverter P.c. Board83
Front Side Of Unit83
Back Side Of Unit83
Outdoor Control P.c. Board84
Outdoor Power P.c. Board85
Outdoor Display P.c. Board85
Fin Temperature Thermistor (Rt64)85
Disassembly Instructions86
Detaching Method Of The Terminal With Locking Mechanism86
Removing The Cabinet And The Panels86
Removing The Inverter Assembly And The Inverter P.c. Board87
Removing The R.v. Coil87
Removing The Discharge Temperature Thermistor87
Removing The Outdoor Fan Motor88
Removing The Compressor And The 4-Way Valve88
Removing The Outdoor Control P.c. Board90
Removing The Fan Motor91
Removing The Expansion Valve92