Hitachi RCI-1.0FSN3 Service Manual page 7

Index
3.6. Refrigerant charge............................................................................................................................... 125
3.7. Precautions in the event of refrigerant leaks ....................................................................................... 126
3.7.1. Maximum permissible concentration of hydrofluorocarbon (HFC) .......................................................... 126
3.7.2. Calculation of the concentration of refrigerant ......................................................................................... 126
3.7.3. Countermeasures in the event of refrigerant leaks .................................................................................. 126
4. Electrical wiring ..................................................................................................... 127
4.1. Unit electrical wiring and connection ................................................................................................... 128
4.1.1. Wiring and main switch selection ............................................................................................................ 128
4.1.2. Electrical connection of RCI units ............................................................................................................ 129
4.1.3. Electrical connection of RCIM units ......................................................................................................... 132
4.1.4. Electrical connection of RCD units .......................................................................................................... 134
4.1.5. Electrical connection of RPC units .......................................................................................................... 137
4.1.6. Electrical connection of RPI units ............................................................................................................ 139
4.1.7. Electrical connection of RPIM units ......................................................................................................... 142
4.1.8. Electrical connection of RPK units ........................................................................................................... 145
4.1.9. Electrical connection of RPF(I) units ....................................................................................................... 148
4.1.10. Electrical connection of KPI units ............................................................................................................ 150
4.1.11. DX-Interface electrical wiring ................................................................................................................... 151
4.1.12. Network system connection (CS-NET WEB) ........................................................................................... 155
4.1.13. Connection between units H-LINK and H-LINK II .................................................................................... 156
4.2. Setting of DIP switches and RSW switches ........................................................................................ 157
4.2.1. Location of DIP switches and RSW switches .......................................................................................... 158
4.2.2. Functions of the DIP switches and RSW switches .................................................................................. 160
4.3. Wiring diagrams for indoor units and complementary systems ........................................................... 167
4.3.1. Wiring diagrams for indoor units .............................................................................................................. 167
4.3.2. Wiring diagrams for complementary systems .......................................................................................... 178
5. Control system ....................................................................................................... 181
5.1. Device control system ......................................................................................................................... 182
5.1.1. Printed circuit boards for RCI-FSN3 indoor units .................................................................................... 184
5.1.2. Printed circuit boards for RCI-(1.0-6.0)FSN3Ei ....................................................................................... 185
5.1.3. Printed circuit boards for RCIM-FSN2 indoor units ................................................................................. 186
5.1.4. Printed circuit boards for RCD indoor units ............................................................................................. 188
5.1.5. Printed circuit board for RPC, RPF(I), units ............................................................................................. 189
5.1.6. Printed circuit board for RPI(M)-(0.8-6.0)FSN4E ..................................................................................... 191
5.1.7. Printed circuit board for RPI-(8.0/10.0) FSN3E units ............................................................................... 192
5.1.8. Printed circuit board for RPK-FSN(H)3M units ........................................................................................ 194
5.1.9. Printed circuit board for KPI complementary systems ............................................................................. 197
5.1.10. Printed circuit board for DX-Interface complementary systems .............................................................. 198
5.2. Safety protection and control............................................................................................................... 201
5.3. Standard control functions................................................................................................................... 202
5.3.1. Freeze protection during the cooling or dehumidification process .......................................................... 202
5.3.2. Indoor electronic expansion valve control ............................................................................................... 203
5.3.3. Activation of the control with protection device ........................................................................................ 204
5.3.4. Automatic cooling/heating operation control ............................................................................................ 205
5.3.5. Preventive high-pressure increase control .............................................................................................. 205
6. Optional functions ................................................................................................. 207
6.1. Indoor units.......................................................................................................................................... 208
VII
TCGB0077 rev.0 - 01/2013