How to chemical clean - Aircon/chiller

Just asked my friend to help me buy the CX448. Can the CX448 be used on the indoor air con unit ? or is it just for the outdoor condensor unit ?

Originally Posted by bedoklist

looks good but my main unit is outside the windows....how to....

For the air-con unit inside the 3 rooms, i service myself. Dismantle the cover, filter and the main cover. Wash them up and next use a soft tooth brush and a small pail of water. Slowly brush down the fins and you can see the dirt being remove.

Take note, if 1st time do this very siong and take almost 3/4 day time. Neck and hand also very tiring but worth it. The 2nd time you do it will be a breeze. You will notice your room is colder than last time b4 cleaning.

Bro,
Just brushing with plain water is not so effective because our brushes cannot reach the inner side of the fin.
Annually you still need to do a chemical clean

Regards

[BarraCuda™]

Originally Posted by ArisingStar

Just asked my friend to help me buy the CX448. Can the CX448 be used on the indoor air con unit ? or is it just for the outdoor condensor unit ?

Its not recommended to use CX448 for indoor fan unit as the chemical will give off fumes.

how abt spraying WD 40 as it is a solvent cum cleaner ?

[BarraCuda™]

Originally Posted by bingkla

how abt spraying WD 40 as it is a solvent cum cleaner ?

That will cause the condensor fins to be coated with oil, reducing heat transfer from the air. Oily fins will be a magnet for dirt as well.

WD 40 is for lossen rusty parts. Although the coil cleaner is alkaline base but advisable to rinse it after u see the dirt coming out from the fins , cos in long time condition , it might damages the coil. Of the condenser is brnad new, and u do regular cleaning with water will do. But if your unit is very dirty, coil cleaner is a must to clear the dirt in it and better put on a mask when u do the cleaner and prevent chemical pouring at your hands. Cos the chemical will "bike" your hand....

Has anybody got experience cleaning the cylindrical blower in the cooling unit. Have try soaking in water but unable to effectively clean it.

[BarraCuda™]

Originally Posted by seawater

Has anybody got experience cleaning the cylindrical blower in the cooling unit. Have try soaking in water but unable to effectively clean it.

I dont quite understand what cylindrical blower, you got photo?

Hi i wonder do i need to mix the CX448 with water? Wow! This is a very informative forum on aro and hardwzre!

[BarraCuda™]

I did a 50% dilution before and it still works well!