Hitachi RCIM-0.8FSRE - Page 10

General Index
SMGB0137 rev.0 - 05/2021
VIII
7.9.10 Removalofthefanmotor .......................................................................................................................... 275
7.9.11 RemovaloftheDX-CoilModule(X4Eseriesonly) .................................................................................... 276
7.10 DX-Interface ........................................................................................................................................277
7.10.1 Structureandpartnames .......................................................................................................................... 277
7.10.2 Removaloftheelectricalcomponents ...................................................................................................... 277
8. Troubleshooting ..................................................................................................... 279
8.1 Electronicexpansionvalvecheckprocedure ......................................................................................280
8.2 Procedureforcheckingfanmotorsinindoorunits .............................................................................. 280
8.3 Inspectionofothercomponents ..........................................................................................................282
8.4 Alarmcodesdisplayedintheremotecontrolswitch ...........................................................................283
8.5 DX-InterfaceEXV-(2.0-10.0)E2orKPI-(E/X)4Ealarmcodes..............................................................286
9. Maintenance notes ................................................................................................. 287
9.1 Regularequipmentmaintenance ........................................................................................................288
9.1.1 Necessarytools,equipmentandconsumableforregularmaintenance ...................................................... 288
9.2 Indoor cleaning ....................................................................................................................................289
9.2.1 Cleaningthebuilt-in4-wayindoorunitRCI(M) ............................................................................................ 289
9.2.2 Cleaningthebuilt-in2-wayindoorunit(RCD) ............................................................................................. 292
9.2.3 Cleaningofthewall-typeindoorunit(RPK) ................................................................................................ 294
9.2.4 CleaningtheoorconsoleandoorconcealedconsoleindoorunitRPF(I) ................................................ 295
9.2.5 Cleaningoftheceiling-typeindoorunit(RPC) ............................................................................................ 296
9.3 CleaningofKPIunits ...........................................................................................................................299
9.4 Econofreshkit......................................................................................................................................301
9.5 Collectionofrefrigeranttoreplacetheindoorunit...............................................................................301
9.6 Cleaningagentsforheatexchanger ...................................................................................................302
9.6.1 Recommendedspecicationsofcleaningagentsforaluminiumns .......................................................... 302
9.6.2 Particularitiesandbenets .......................................................................................................................... 302
9.6.3 To consider .................................................................................................................................................. 302