Mitsubishi Electric City Multi CMB-WP108V-G, Service Manual

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CONTENTS
HWE1113B GB
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
[13] Water piping.......................................................................................................................... 15
II
Restrictions
[1] System configuration .............................................................................................................. 21
[2] Types and Maximum allowable Length of Cables .................................................................. 22
[3] Switch Settings and Address Settings .................................................................................... 23
[4] Sample System Connection ................................................................................................... 29
[5] An Example of a System to which an MA Remote Controller is connected ........................... 30
[6] An Example of a System to which an ME Remote Controller is connected ........................... 40
[7] An Example of a System to which both MA Remote Controller and ME Remote
Controller are connected ........................................................................................................ 42
[8] Restrictions on Pipe Length .................................................................................................... 45
III
Outdoor Unit Components
[1] Outdoor Unit Components and Refrigerant Circuit ................................................................. 49
[2] Control Box of the Outdoor Unit.............................................................................................. 51
[3] Outdoor Unit Circuit Board...................................................................................................... 52
[4] HBC Controller Components .................................................................................................. 57
[5] Control Box of the HBC Controller .......................................................................................... 59
[6] HBC Controller Circuit Board .................................................................................................. 60
IV
Remote Controller
[1] Functions and Specifications of MA and ME Remote Controllers .......................................... 65
[2] Group Settings and Interlock Settings via the ME Remote Controller .................................... 66
[3] Interlock Settings via the MA Remote Controller .................................................................... 70
[4] Using the built-in Temperature Sensor on the Remote Controller .......................................... 71
V
Electrical Wiring Diagram
[1] Electrical Wiring Diagram of the Outdoor Unit ........................................................................ 75
[2] Electrical Wiring Diagram of the HBC Controller .................................................................... 76
[3] Electrical Wiring Diagram of Transmission Booster................................................................ 78
VI
Refrigerant Circuit
[1] Refrigerant Circuit Diagram .................................................................................................... 81
[2] Principal Parts and Functions ................................................................................................. 83
VII
Control
[1] Functions and Factory Settings of the Dipswitches ................................................................ 89
[2] Controlling the Outdoor Unit ................................................................................................... 96
[3] Controlling HBC Controller ................................................................................................... 106
[4] Operation Flow Chart............................................................................................................ 111
VIII
Test Run Mode
[1] Items to be checked before a Test Run ................................................................................ 119
[2] Test Run Method .................................................................................................................. 120
[3] Operating Characteristic and Refrigerant Amount ................................................................ 121
[4] Adjusting the Refrigerant Amount......................................................................................... 121
[5] Refrigerant Amount Adjust Mode.......................................................................................... 123
[6] The following symptoms are normal. .................................................................................... 123
[7] Standard Operation Data (Reference Data) ......................................................................... 124