Table Of Contents - Mitsubishi Electric MUZ-AP25VG - E1 Service Manual

Table of Contents

Table Of Contents1
Outdoor Unit1
Service Manual1
Technical Changes2
Preparation Before The Repair Service2
Precautions During The Repair Service2
Servicing Precautions For Units Using Refrigerant R323
Information On Servicing3
Repairs To Sealed Components3
Detection Of Flammable Refrigerants4
Leak Detection Methods4
Removal And Evacuation4
Charging Procedures4
Part Names And Functions5
Specification6
Noise Criteria Curves7
Outlines And Dimensions9
Wiring Diagram10
Refrigerant System Diagram13
Max. Refrigerant Piping Length14
Max. Height Difference14
Additional Refrigerant Charge14
Performance Curves15
How To Measure The Indoor Air Wet And Dry Bulb Temperature Difference15
Capacity And Input Curves15
Total Input16
Heating Capacity16
Capacity And Input Correction By Operational Frequency Of Compressor17
How To Operate Fixed-Frequency Operation18
Outdoor Low Pressure And Outdoor Unit Current18
Cool Operation18
Outdoor Low Pressure18
Outdoor Unit Current19
Heat Operation19
Performance Data Heat28
Actuator Control29
Outdoor Fan Motor Control29
R.v. Coil Control29
Relation Between Main Sensor And Actuator29
Service Functions30
Change In Defrost Setting30
Pre-Heat Control30
Pre-Heat Control Setting30
Troubleshooting31
Failure Mode Recall Function32
Setting Up The Failure Mode Recall Function32
Judgment Of Indoor/Outdoor Abnormality32
Releasing The Failure Mode Recall Function32
Flow Chart Of The Detailed Outdoor Unit Failure Mode Recall Function33
Deleting The Memorized Abnormal Condition33
Table Of Outdoor Unit Failure Mode Recall Function34
Troubleshooting Check Table36
Trouble Criterion Of Main Parts38
Troubleshooting Flow39
How To Check Inverter/Compressor39
Check Of Open Phase39
Check Of Compressor39
Check Of Compressor Winding40
Check Of Compressor Operation Time40
Check Of Compressor Start Failure40
Check Of Outdoor Thermistors41
Check Of R.v. Coil42
Check Of Outdoor Fan Motor43
Check Of Power Supply44
Check Of Lev (Expansion Valve)45
Check Of Inverter P.c. Board46
How To Check Miswiring And Serial Signal Error47
Check Of The Outdoor Refrigerant Circuit48
Electromagnetic Noise Enters Into Tv Sets Or Radios49
Test Point Diagram And Voltage50
Inverter P.c. Board50
Back Side Of Unit50
Front Side Of Unit50
Disassembly Instructions51
Detaching Method Of The Terminal With Locking Mechanism51
Removing The Cabinet51
Removing The Inverter Assembly, Inverter P.c. Board52
Removing R.v. Coil52
Removing The Discharge Temperature Thermistor52
Removing Outdoor Fan Motor53
Removing The Compressor And 4-Way Valve53
Removing The Lev Assembly53
Muz-Ap50Vg Muz-Ap50Vgh54
Removing The Inverter Assembly And Inverter P.c. Board55
Removing R. V. Coil56