Control System - Hitachi RCI-1.0FSN3 Service Manual

Indoor units system free series & complementary systems fsn(h)(2/3/4)(e/m)(i)(-du)
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5 Control system

Index
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
181
SMGB0077 rev.0 - 01/2013
5.
C o n t r o l s y s t e m
5

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