Table Of Contents - Mitsubishi Electric PUHY-HP72 Service Handbook

CONTENTS
Chapter 1 Check Before Servicing
1-1 Preparation for Piping Work.................................................................................................................. 1
1-2 Handling and Characteristics of Piping Materials, Refrigerant, and Refrigerant Oil ....................... 3
1-3 Working with Refrigerant Piping........................................................................................................... 7
1-4 Precautions for Wiring ......................................................................................................................... 11
1-5 Cautionary notes on installation environment and maintenance.................................................... 13
Chapter 2 Restrictions
2-1 System Configurations .......................................................................................................................... 1
2-2 Types and Maximum Allowable Length of Cables .............................................................................. 2
2-3 Switch Settings....................................................................................................................................... 3
2-4 M-NET Address Settings ....................................................................................................................... 4
2-5 Demand Control Overview .................................................................................................................... 9
2-6 System Connection Example .............................................................................................................. 11
2-7 Example System with an MA Remote Controller .............................................................................. 12
2-8 Example System with an ME Remote Controller............................................................................... 22
2-9 Example System with an MA and an ME Remote Controller............................................................ 24
2-10 Restrictions on Refrigerant Pipes ...................................................................................................... 26
Chapter 3 Major Components, Their Functions and Refrigerant Circuits
3-1 External Appearance and Refrigerant Circuit Components of Outdoor Unit ................................... 1
3-2 Outdoor Unit Refrigerant Circuit Diagrams ......................................................................................... 3
3-3 Functions of the Major Components of Outdoor Unit ........................................................................ 4
3-4 Functions of the Major Components of Indoor Unit ........................................................................... 7
Chapter 4 Electrical Components and Wiring Diagrams
4-1 Outdoor Unit Circuit Board Arrangement ............................................................................................ 1
4-2 Outdoor Unit Circuit Board Components ............................................................................................ 4
4-3 Outdoor Unit Electrical Wiring Diagrams........................................................................................... 14
4-4 Transmission Booster Electrical Wiring Diagrams ........................................................................... 16
Chapter 5 Control
5-1 Dipswitch Functions and Factory Settings.......................................................................................... 1
5-2 Outdoor Unit Control ............................................................................................................................. 9
Chapter 6 Test Run
6-1 Read before Test Run ............................................................................................................................ 1
6-2 Operation Characteristics and Refrigerant Charge ............................................................................ 2
6-3 Evaluating and Adjusting Refrigerant Charge..................................................................................... 2
6-4 The Following Symptoms Are Normal ................................................................................................. 6
Chapter 7 Troubleshooting Using Error Codes
7-1 Error Code and Preliminary Error Code Lists ..................................................................................... 1
7-2 Error Code Definitions and Solutions: Codes [0 - 999]....................................................................... 6
7-3 Error Code Definitions and Solutions: Codes [1000 - 1999]............................................................... 8
7-4 Error Code Definitions and Solutions: Codes [2000 - 2999]............................................................. 12
7-5 Error Code Definitions and Solutions: Codes [3000 - 3999]............................................................. 18
7-6 Error Code Definitions and Solutions: Codes [4000 - 4999]............................................................. 21
7-7 Error Code Definitions and Solutions: Codes [5000 - 5999]............................................................. 38
7-8 Error Code Definitions and Solutions: Codes [6000 - 6999]............................................................. 45
7-9 Error Code Definitions and Solutions: Codes [7000 - 7999]............................................................. 66
HWE18240_GB