Installation manual
CONTENTS
HWE10050 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
II Restrictions
[1] System configuration .............................................................................................................. 17
[2] Types and Maximum allowable Length of Cables .................................................................. 19
[3] Switch Settings and Address Settings.................................................................................... 20
[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.............................................................................................. 66
[3] Outdoor Unit Circuit Board...................................................................................................... 67
[4] BC Controller Components..................................................................................................... 72
[5] Control Box of the BC Controller ............................................................................................75
[6] BC Controller Circuit Board .................................................................................................... 76
IV Remote Controller
[1] Functions and Specifications of MA and ME Remote Controllers .......................................... 81
[2] Group Settings and Interlock Settings via the ME Remote Controller .................................... 82
[3] Interlock Settings via the MA Remote Controller.................................................................... 86
[4] Using the built-in Temperature Sensor on the Remote Controller.......................................... 87
V Electrical Wiring Diagram
[1] Electrical Wiring Diagram of the Outdoor Unit........................................................................ 91
[2] Electrical Wiring Diagram of the BC Controller....................................................................... 93
[3] Electrical Wiring Diagram of Transmission Booster.............................................................. 103
VI Refrigerant Circuit
[1] Refrigerant Circuit Diagram .................................................................................................. 107
[2] Principal Parts and Functions............................................................................................... 117
VII Control
[1] Functions and Factory Settings of the Dipswitches.............................................................. 127
[2] Controlling the Outdoor Unit ................................................................................................. 133
[3] Controlling BC Controller...................................................................................................... 147
[4] Operation Flow Chart............................................................................................................ 148
VIII Test Run Mode
[1] Items to be checked before a Test Run................................................................................ 157
[2] Test Run Method .................................................................................................................. 158
[3] Operating Characteristic and Refrigerant Amount................................................................ 159
[4] Adjusting the Refrigerant Amount......................................................................................... 159
[5] Refrigerant Amount Adjust Mode.......................................................................................... 162
[6] The following symptoms are normal..................................................................................... 164
[7] Standard Operation Data (Reference Data) ......................................................................... 165