11 Maintenance notes
Indoor cleaning
SMGB0099 rev.0 - 12/2016
358
11.2.3 Cleaning of the wall-type indoor unit (RPK)
Preliminary procedure
Place a vinyl sheet on the oor to protect the furniture and other items from the cleaning water before starting this job.
Remove each part as indicated in the “3.5.11 RPK-(0.6-4.0)FSN(H)3M - Wall type” section.
Remove the front panel as indicated in section “9.9.2 Removal of the front panel”.
Remove the electrical box after opening the corresponding panel and then disconnect the connectors located between
the indoor and outdoor units and other connectors, as indicated in section “9.9.7 Removing Electrical Box”.
Remove the drain pan. Also carry out the following tasks:
1 Remove the drain pan after emptying it of water.
2 Empty the drain pan of water by removing the rubber plug. Make sure the water ows easily through the hole by
inserting a pencil into it.
3 Once the drain pan has been removed, check that there is no water in the drainage at the bottom of the pan.
4 Clean and dry the pan before removing it. Handle the pan carefully.
Remove the heat exchanger as indicated in sections “9.9.10 Removing Heat Exchanger” and “9.9.12 Removing Fan and
Fan Motor”.
Cleaning the indoor unit
? NOTE
Wear gloves to avoid injuries caused by the heat exchanger ns.
Clean the inner surface of dust. Collect all of the dust in a bucket or a cardboard box.
Place a vinyl sheet around the electrical components to protect them
from splashed cleaning water.
Secure the motor panel using adhesive tape.
Hang the cleaning water manifold from the indoor unit.
1 Tie the rope to the suspension bolts of the indoor unit and drop
downwards.
2 Insert the support bars into the holes in the water manifold.
3 Tie the rope to the support bar of the water manifold and hang
the manifold.
4 Connect a pipe to the boss and place the end inside the pipe.
Bucket
Pump
Pour approximately 15 litres of cleaning product for the aluminium ns into a supply tank.
Insert the nozzle of the pressurised water gun into the hole in the cleaning water manifold. Start the water pump and
clean the heat exchanger of any dust.
After cleaning, spray and remove all remains of water.
? NOTE
• Set the pressure of the water pump so as not to damage the funs.
• Any cleaning water left behind will rust the ns. Set the pump pressure to between 2.5 and 5 kg/cm
3
to protect the ns.
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