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SERVICING
(2.11 Cleaning Indoor Unit Heat Exchanger)
2.11.5 Cleaning Wall Type Indoor Unit
Spread a vinyl sheet over the floor to protect furnitures, etc. from cleaning water before this work.
(1) Remove each parts according to the item 2.6 “Wall Type”.
(2) Remove the front panel according to the item 2.6.2 “Removing Front Panel”.
(3) Remove the electrical box according to the item 2.6.5 “Removing Electrical Box Cover”.
(4) Remove the drain pan according to the item 2.6.7 “Removing Drain Pan”.
(5) Remove the heat exchanger according to the item 2.6.8 “Removing Heat Exchanger”.
(6) Cleaning
(a) Remove dust with a brush.
(b) Cover a vinyl sheet over the electrical components to protect them from splashed cleaning water.
(c) In the case that cleaning agent is used, clean the heat exchanger with clean water completely.
(d) Adjust the pressure of the pump so as not to damage fins.
(7) Neutralization Treatment after Cleaning
The cleaning agent specified in the item 2.11.1 is of the neutral type. However, the cleaning water
after use may be not neutral.
Collect all cleaning water and make necessary
neutralization treatment for the cleaning water.
TURN OFF all power source switches.
Cleaning Water, Clean Water,
Pump, Spray
Tool
NOTES:
1. If the cleaning water remains, fins will be
corroded.
2. Adjust the pressure of the pump at 2.5 to
5.0 kg/cm
2
so as not to damage fins.
Nozzle
Heat
Exchanger
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