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
II 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 ................................................................................................... 26
[5] An Example of a System to which an MA Remote Controller is connected ........................... 28
[6] An Example of a System to which an ME Remote Controller is connected ........................... 42
[7] An Example of a System to which both MA Remote Controller and ME Remote
Controller are connected ........................................................................................................ 44
[8] Restrictions on Pipe Length.................................................................................................... 47
III Outdoor Unit Components
[1] Outdoor Unit Components and Refrigerant Circuit ................................................................. 61
[2] Control Box of the Outdoor Unit.............................................................................................. 65
[3] Outdoor Unit Circuit Board...................................................................................................... 70
[4] BC Controller Components..................................................................................................... 81
[5] Control Box of the BC Controller ............................................................................................ 84
[6] BC Controller Circuit Board .................................................................................................... 85
IV Remote Controller
[1] Functions and Specifications of MA and ME Remote Controllers .......................................... 89
[2] Group Settings and Interlock Settings via the ME Remote Controller .................................... 90
[3] Interlock Settings via the MA Remote Controller .................................................................... 94
[4] Using the built-in Temperature Sensor on the Remote Controller .......................................... 95
V Electrical Wiring Diagram
[1] Electrical Wiring Diagram of the Outdoor Unit ........................................................................ 99
[2] Electrical Wiring Diagram of the BC Controller ..................................................................... 104
[3] Electrical Wiring Diagram of Transmission Booster.............................................................. 114
VI Refrigerant Circuit
[1] Refrigerant Circuit Diagram .................................................................................................. 117
[2] Principal Parts and Functions ............................................................................................... 125
VII Control
[1] Functions and Factory Settings of the Dipswitches .............................................................. 137
[2] Controlling the Outdoor Unit ................................................................................................. 144
[3] Controlling BC Controller ...................................................................................................... 158
[4] Operation Flow Chart............................................................................................................ 159
VIII Test Run Mode
[1] Items to be checked before a Test Run................................................................................ 167
[2] Test Run Method .................................................................................................................. 168
[3] Operating Characteristic and Refrigerant Amount................................................................ 169
[4] Adjusting the Refrigerant Amount......................................................................................... 169
[5] Refrigerant Amount Adjust Mode.......................................................................................... 172
[6] The following symptoms are normal. .................................................................................... 174
[7] Standard Operation Data (Reference Data) ......................................................................... 175
IX Troubleshooting
[1] Error Code Lists.................................................................................................................... 195
[2] Responding to Error Display on the Remote Controller........................................................ 199
[3] Investigation of Transmission Wave Shape/Noise ............................................................... 286
[4] Troubleshooting Principal Parts............................................................................................ 289
[5] Refrigerant Leak ................................................................................................................... 338
[6] Compressor Replacement Instructions................................................................................. 340
HWE1116D GB