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SERVICING
(2.11 Cleaning Indoor Unit Heat Exchanger)
TURN OFF all power source switches.
NOTES:
Remove the drain pan after removing drain water on the drain pan.
1. Remove the drain water on the drain pan after pulling out the rubber plug. Check to ensure that water
can flow smoothly through the hole by pricking it with a pencil.
2. Insert the rubber plug into the hole after the above checking.
3. Remove the drain pan after removing four fixing screws. Carefully remove the drain pan, since drain
water may remain at the bottom of the drain pan.
4. Clean and dry the drain pan after removing. Carefully handle the drain pan not to damage it.
2.11.3 Cleaning 4-Way Cassette Type Indoor Unit
Spread a vinyl sheet over the floor to protect furnitures, etc. from cleaning water before this work.
No. Procedure Tool
1 Remove the optional air panel according to the item 2.4.4 Phillips Screwdriver
"Removing Optional Air Panel".
2 Remove the electrical box after opening the electrical box cover Phillips Screwdriver
and disconnectin
Electrical Box Cover".
3 Remove the bell-mouth and fan according to the item 2.4.5 Phillips Screwdriver
"Removing Fan Runner and Fan Motor". Adjustable Wrench
4 Remove the drain pan according to the item 2.4.8 Phillips Screwdriver
"Removing Drain Pan".
5 Remove the float switch according to the item 2.4.10 Phillips Screwdriver
"Removing Float Switch".
6 Remove the drain-up mechanism according to the item 2.4.9 Phillips Screwdriver
"Removing Drain-up Mechanism".
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