Hitachi RCI-4.0FSR - Cleaning of KPI Units

9 Maintenance notes
Cleaning of KPI units
SMGB0137 rev.0 - 05/2021
299
9
9.3 Cleaning of KPI units
Filter maintenance
Preliminary procedures
Turn o󰀨 all power supply switches before starting maintenance work.
Wait 5 minutes after stopping the unit before starting the cleaning procedure.
Do not start the system without the air lter to avoid blockages in the total heat exchanger.
! DANGER
Wear gloves to avoid injuries when handling the lter.
? NOTE
• Clean the heat exchanger unit once or more every two years.
• Clean the air lter more than once a year.
KPI-(252-2002)E4E and KPI-(502-1002)X4E
Pull the hinges back.
Open and remove the service cover.
! CAUTION
The service cover is not xed, pay attention when pull the hinges
back because the cover can fall.
Remove the air lters located at the bottom left and bottom right, close to the heat exchanger unit.
Use a vacuum cleaner to suck up any dust.
Dissolve a little neutral soap in cold or warm water to clean
the dirt.
Place the lters in the soapy water to clean them.
Allow the lters to dry.
Fit the lter.
Close the service cover.
Vacuum cleaner Air lter