Table Of Contents - Mitsubishi Electric MXZ-2A40VA Service Manual

Table of Contents

Table Of Contents1
Outdoor Unit1
Service Manual1
Technical Changes2
Revision : A2
Information For The Air Conditioner With R410A Refrigerant4
New Specification4
Current Specification4
Conversion Chart Of Refrigerant Temperature And Pressure5
Tools Dedicated For The Air Conditioner With R410A Refrigerant5
Refrigerant Piping5
Flaring Work And Flare Nut6
Refrigerant Oil6
Air Purge6
Additional Charge6
Part Names And Functions7
Accessories7
Indoor/ Outdoor Correspondence Table8
Indoor Units Combination10
Specification24
Noise Criteria Curves27
Outlines And Dimensions28
Required Space28
Installation Space30
Wiring Diagram31
Mxz-3A54Va32
Mxz-4A71Va33
Mxz-4A80Va34
Mxz-2A40Va Mxz-2A52Va35
Max Refrigerant Piping Length35
Cooling35
Refrigerant System Diagram35
Heating36
Mxz-2A40Va Mxz-4A71Va39
Mxz-2A52Va Mxz-4A80Va39
Performance Curves39
Capacity And The Input Curves40
Capacity And Input Correction By Inverter Output Frequency42
22-Class Unit In Single Operation42
25-Class Unit In Single Operation42
71-Class Unit In Single Operation46
Test Run Operation46
Outdoor Low Pressure And Outdoor Unit Current46
Service Functions50
Actuator Control50
Relation Between Main Sensor And Actuator50
Locking The Operation Mode Of The Conditioner50
Auto Line Correcting Function51
Correct Line51
Incorrect Wiring51
Troubleshooting53
Cautions On Troubleshooting53
Failure Mode Recall Function53
Lead Wiring53
Outdoor Unit Failure Mode Table54
Instruction Of Troubleshooting57
Operation Start57
Troubleshooting Check Table58
Trouble Criterion Of Main Parts62
Defrost Thermistor62
Compressor62
R.v. Coil62
Troubleshooting Flow63
A A Check Of Power Supply63
How To Check Mis-Wiring And Serial Signal Error64
C C Check Of R.v. Coil65
D D Check Of Lev66
E E How To Check Inverter/ Compressor67
F F Check Of Outdoor Thermistors68
G G Check Of Outdoor Fan Motor69
H H Check Of Hps70
I I The Other Cases70
Test Point Diagram And Voltage71
Inverter P.c. Board71
Back Side Of Unit71
Front Side Of Unit71
Outdoor Electronic Control P.c. Board72
Discharge Temperature Thermistor (Rt62)72
Fin Temperature Thermistor (Rt64)72
Defrost Thermistor (Rt61)72
Noise Filter P.c. Board73
Power P.c. Board74
Outdoor Power Board75
Display P.c. Board76
Interface P.c. Board76
Disassembly Instructions77
Terminal With Locking Mechanism" Detaching Points77
Removing The Cabinet77
Removing R.v. Coil78
Removing The Discharge Temperature Thermistor78
Removing Outdoor Fan Motor79
Removing The Compressor And 4-Way Valve79
Removing The Compressor80
Removing The Fan Motor81
Removing The 4-Way Valve82
Removing The Expansion Valve82
Removing The Reactor82
Parts List86
Outdoor Unit Structural Parts And Functional Parts86
Outdoor Unit Electrical Parts88
Drain Socket89
Outdoor Unit Functional Parts And Electrical Parts92
Optional Parts98
Different-Diameter Pipe98
Outlet Guide98