Table Of Contents - Mitsubishi Electric CMB-WP108NU-AA 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 ...................................................................................................................... 6
[5] Pipe Processing........................................................................................................................ 6
[6] Brazing...................................................................................................................................... 7
[7] Air Tightness Test (Refrigerant Circuit) .................................................................................... 8
[8] Vacuum Drying (Evacuation) (Refrigerant Circuit).................................................................... 9
[9] Refrigerant Charging .............................................................................................................. 11
[10] Remedies to be taken in case of a Refrigerant Leak............................................................ 11
[11] Characteristics of the Conventional and the New Refrigerants ............................................ 12
[12] Notes on Refrigerating Machine Oil ...................................................................................... 13
[13] Water piping.......................................................................................................................... 14
II Restrictions
[1] System configuration .............................................................................................................. 19
[2] Switch Settings and Address Settings .................................................................................... 21
[3] An Example of a System to which an MA Remote Controller is connected ........................... 23
[4] An Example of a System to which an ME Remote Controller is connected ........................... 29
[5] An Example of a System to which both MA Remote Controller and
ME Remote Controller are connected .................................................................................... 31
[6] Restrictions on Pipe Length.................................................................................................... 34
III HBC Controller Components
[1] HBC Controller Components .................................................................................................. 43
[2] Sub-HBC Controller Components........................................................................................... 46
[3] Control Box of the HBC Controller and Sub-HBC Controller .................................................. 48
[4] HBC Controller and Sub-HBC Controller Circuit Board .......................................................... 49
[5] Maintenance Equipment ......................................................................................................... 51
IV Electrical Wiring Diagram
[1] Electrical Wiring Diagram of the HBC Controller and Sub-HBC Controller ............................ 55
[2] Electrical Wiring Diagram of Transmission Booster................................................................ 63
V Refrigerant Circuit
[1] Refrigerant Circuit Diagram .................................................................................................... 67
[2] Principal Parts and Functions ................................................................................................. 70
VI Control
[1] Functions and Factory Settings of the Dipswitches ................................................................ 75
[2] Controlling HBC Controller ..................................................................................................... 76
VII Test Run Mode
[1] Read before Test Run ............................................................................................................ 87
[2] Operating Characteristic and Refrigerant Amount .................................................................. 88
[3] Evaluating and Adjusting Refrigerant Charge......................................................................... 88
[4] Refrigerant Amount Adjust Mode............................................................................................ 90
[5] The following symptoms are normal. ...................................................................................... 90
VIII Troubleshooting
[1] Error Code Lists...................................................................................................................... 93
[2] Responding to Error Display on the Remote Controller.......................................................... 97
[3] Investigation of Transmission Wave Shape/Noise ............................................................... 141
[4] Troubleshooting Principal Parts ............................................................................................ 144
[5] Refrigerant Leak ................................................................................................................... 175
[6] Servicing the HBC controller................................................................................................. 177
[7] Instructions for debris removal operation.............................................................................. 179
[8] Instructions for the air vent operation ................................................................................... 180
[9] Instructions for the water pump replacement........................................................................ 181
IX LED Monitor Display on the Outdoor Unit Board
[1] How to Read the LED on the Service Monitor ...................................................................... 199
HWE2206A GB