Hitachi RCI Service Manual page 7

Index
3.6 Refrigerant gas charge............................................................................................................... 109
3.7 Precautions in the event of refrigerant gas leaks....................................................................... 110
3.7.1 Maximum permissible concentration of hydrofluorocarbon (HFC).............................................. 110
3.7.2 Calculation of the concentration of refrigerant gas..................................................................... 110
3.7.3 Countermeasures in the event of refrigerant gas leaks.............................................................. 110
4 Electrical wiring............................................................................................... 111
4.1 Unit electrical wiring and connection.......................................................................................... 112
4.1.1 Wiring and main switch selection................................................................................................ 112
4.1.2 Electrical connection of RCI units............................................................................................... 113
4.1.3 Electrical connection of RCIM units............................................................................................ 116
4.1.4 Electrical connection of RCD units.............................................................................................. 118
4.1.5 Electrical connection of RPC units.............................................................................................. 120
4.1.6 Electrical connection of RPI units............................................................................................... 122
4.1.7 Electrical connection of RPIM units............................................................................................ 125
4.1.8 Electrical connection of RPK units.............................................................................................. 128
4.1.9 Electrical connection of RPF(I) units........................................................................................... 131
4.1.10 Electrical connection of KPI units................................................................................................ 133
4.1.11 Network system connection (CS-NET WEB).............................................................................. 134
4.1.12 Connection between units H-LINK and H-LINK II....................................................................... 135
4.2 Setting of DIP switches and RSW switches............................................................................... 136
4.2.1 Location of DIP switches and RSW switches............................................................................. 137
4.2.2 Functions of the DIP switches and RSW switches..................................................................... 138
4.3 Wiring diagrams for the KPI indoor units and complementary systems..................................... 142
4.3.1 Wiring diagrams for indoor units................................................................................................. 142
4.3.2 Wiring diagrams for complementary systems............................................................................. 155
5 Control system................................................................................................. 159
5.1 Device control system................................................................................................................ 160
5.1.1 Printed circuit boards for RCI(M) indoor units............................................................................. 161
5.1.2 Printed circuit boards for RCD indoor units................................................................................. 163
5.1.3 Printed circuit board for RPC, RPF(I), RPI(M) units.................................................................... 166
5.1.4 Printed circuit board for RPI-(8.0/10.0) FSN2E units.................................................................. 167
5.1.5 Printed circuit board for RPK-FSN(H)2M units........................................................................... 169
5.1.6 Printed circuit board for KPI complementary systems................................................................ 172
5.2 Safety protection and control...................................................................................................... 175
5.3 Standard control functions.......................................................................................................... 176
5.3.1 Freeze protection during the cooling or dehumidification process.............................................. 176
5.3.2 Indoor electronic expansion valve control................................................................................... 177
5.3.3 Activation of the control with protection device........................................................................... 178
5.3.4 Automatic cooling/heating operation control............................................................................... 179
5.3.5 Preventive high-pressure increase control.................................................................................. 179
6 Optional functions........................................................................................... 181
6.1 Indoor units................................................................................................................................. 182
6.1.1 Available ports............................................................................................................................ 182
6.1.2 Optional signal configuration....................................................................................................... 183
6.1.3 Programming with PC-ART......................................................................................................... 188
6.1.4 Description of optional input signals........................................................................................... 189
6.1.5 Description of optional output signals......................................................................................... 192
v
SMGB0063 rev. 1 - 10/2010