Table Of Contents - Mitsubishi Electric PURY-P72 Service Handbook

CONTENTS
I Read Before Servicing
[1] Read Before Servicing 3
[2] Necessary Tools and Materials 4
[3] Piping Materials 5
[4] Storage of Piping 7
[5] Pipe Processing 7
[6] Brazing 8
[7] Air Tightness Test 9
[8] Vacuum Drying (Evacuation) 10
[9] Refrigerant Charging 12
[10] Remedies to be taken in case of a Refrigerant Leak 12
[11] Characteristics of the Conventional and the New Refrigerants 13
[12] Notes on Refrigerating Machine Oil 14
IT
Restrictions
[1] System configuration 17
[2] Types and Maximum allowable Length of Cables 18
[3] Switch Settings and Address Settings 19
[4] Sample System Connection 25
[5] An Example of a System to which an MA Remote Controller is connected 26
[6] An Example of a System to which an M-NET Remote Controller is connected 38
[7] An Example of a System to which both MA Remote Controller and M-NET Remote
Controller are connected 40
[8] Restrictions on Pipe Length 43
ill
Outdoor Unit Components
[1] Outdoor Unit Components and Refrigerant Circuit.. 57
[2] Control Box of the Outdoor Unit... 60
[3] Outdoor Unit Circuit Board 64
[4] BC Controller Components 74
[5] Control Box of the BC Controller 77
[6] BC Controller Circuit Board 78
IV Remote Controller
[1] Functions and Specifications of MA and ME Remote Controllers 83
[2] Group Settings and Interlock Settings via the ME Remote Controller 84
[3] Interlock Settings via the MA Remote Controller 88
[4] Using the built-in Temperature Sensor on the Remote Controller 89
V Electrical Wiring Diagram
[1] Electrical Wiring Diagram of the Outdoor Unit 93
[2] Electrical Wiring Diagram of the BC Controller 96
[3] Electrical Wiring Diagram of Transmission Booster 105
VI Refrigerant Circuit
[1] Refrigerant Circuit Diagram 109
[2] Principal Parts and Functions 116
VII Control
[1] Functions and Factory Settings of the Dipswitches 125
[2] Controlling the Outdoor Unit 132
[3] Controlling BC Controller 145
[4] Operation Flow Chart 146
VITI Test Run Mode
[1] Items to be checked before a Test Run 155
[2] Test Run Method 156
[3] Operating Characteristic and Refrigerant Amount.. 157
[4] Adjusting the Refrigerant Amount... 157
[5] Refrigerant Amount Adjust Mode 160
[6] The following symptoms are normal. 162
[7] Standard Operation Data (Reference Data) 163
HWEOB03A
GB
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