Table Of Contents - Mitsubishi Electric PURY-HP72 Service Handbook

CONTENTS
Chapter 1 Check Before Servicing
1-1 Preparation for Piping Work.................................................................................................................. 3
1-2 Handling and Characteristics of Piping Materials, Refrigerant, and Refrigerant Oil ....................... 5
1-3 Working with Refrigerant Piping......................................................................................................... 10
1-4 Precautions for Wiring ......................................................................................................................... 15
Chapter 2 Restrictions
2-1 System Configurations ........................................................................................................................ 19
2-2 Types and Maximum Allowable Length of Cables ............................................................................ 20
2-3 Switch Settings..................................................................................................................................... 21
2-4 M-NET Address Settings ..................................................................................................................... 22
2-5 Demand Control Overview .................................................................................................................. 29
2-6 System Connection Example .............................................................................................................. 30
2-7 Example System with an MA Remote Controller .............................................................................. 32
2-8 Example System with an ME Remote Controller............................................................................... 46
2-9 Example System with an MA and an ME Remote Controller............................................................ 48
2-10 Restrictions on Refrigerant Pipes ...................................................................................................... 51
Chapter 3 Major Components, Their Functions and Refrigerant Circuits
3-1 External Appearance and Refrigerant Circuit Components of Outdoor Unit ................................. 65
3-2 Outdoor Unit Refrigerant Circuit Diagrams ....................................................................................... 67
3-3 Functions of the Major Components of Outdoor Unit ...................................................................... 69
3-4 Functions of the Major Components of Indoor Unit ......................................................................... 72
3-5 External Appearance and Refrigerant Circuit Components of BC Controller ................................ 73
3-6 BC Controller Refrigerant Circuit Diagrams ...................................................................................... 76
3-7 Functions of the Major Components of BC Controller ..................................................................... 79
Chapter 4 Electrical Components and Wiring Diagrams
4-1 Outdoor Unit Circuit Board Arrangement .......................................................................................... 87
4-2 Outdoor Unit Circuit Board Components .......................................................................................... 90
4-3 Outdoor Unit Electrical Wiring Diagrams........................................................................................... 98
4-4 Transmission Booster Electrical Wiring Diagrams ......................................................................... 100
4-5 BC Controller Circuit Board Arrangement ....................................................................................... 101
4-6 BC Controller Circuit Board Components ....................................................................................... 102
4-7 BC Controller Electrical Wiring Diagrams ....................................................................................... 104
Chapter 5 Control
5-1 Dipswitch Functions and Factory Settings...................................................................................... 117
5-2 Outdoor Unit Control ......................................................................................................................... 124
5-3 BC Controller Control ........................................................................................................................ 139
5-4 Operation Flowcharts ........................................................................................................................ 140
Chapter 6 Test Run
6-1 Read before Test Run ........................................................................................................................ 149
6-2 MA and ME Remote Controller Functions and Specifications....................................................... 150
6-3 Making the Group and Interlock Settings from an ME Remote Controller ................................... 151
6-4 Selecting Remote Controller Functions from an ME Remote Controller ...................................... 155
6-5 Making Interlock Settings from an MA Remote Controller............................................................. 157
6-6 Changing the Room Temperature Detection Position .................................................................... 159
6-7 Test Run Method ................................................................................................................................ 160
6-8 Operation Characteristics and Refrigerant Charge ........................................................................ 161
6-9 Evaluating and Adjusting Refrigerant Charge................................................................................. 161
6-10 The Following Symptoms Are Normal ............................................................................................. 166
6-11 Standard Operation Data (Reference Data) ..................................................................................... 167
Chapter 7 Troubleshooting Using Error Codes
7-1 Error Code and Preliminary Error Code Lists ................................................................................. 175
7-2 Error Code Definitions and Solutions: Codes [0 - 999]................................................................... 179
HWE13080 GB