Hitachi RCI-4.0FSR - 9 Maintenance Notes

9 Maintenance notes
SMGB0137 rev.0 - 05/2021
287
9
Index
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
9. Maintenance notes