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General => General Discussion => Topic started by: KeithB on February 09, 2017, 04:05:33 PM

Title: Question on split system aircons.
Post by: KeithB on February 09, 2017, 04:05:33 PM
Our split system aircon at home is not quite coping with the hot weather. Given that they are designed to run outdoors in all weather, would introducing a very soft water mist into the air inlet side of the outside unit make it perform better?
Title: Re: Question on split system aircons.
Post by: 1302toby on February 09, 2017, 05:11:04 PM
A small misting will help with cooling, also try isolating it electrically and hosing out the condenser/radiator. Quite often they will be blocked with leaves, feathers etc.
Title: Re: Question on split system aircons.
Post by: nab on February 09, 2017, 05:30:56 PM
If it is in full sunlight try shading it as it will help a lot.
Title: Re: Question on split system aircons.
Post by: KeithB on February 09, 2017, 08:48:48 PM
It's in the shade and I gave it a bit of a hose-out, but didn't see any muck coming out.
It's going to be 40 degrees tomorrow, so I'll try the water mist and see how it goes.
Title: Re: Question on split system aircons.
Post by: Redcherokee on February 09, 2017, 09:10:07 PM
Have you cleaned the filter recently?  Amazing how dirty they get in no time at all.   




Title: Re: Question on split system aircons.
Post by: Mudguts on February 09, 2017, 09:51:55 PM
Give it a good clean out.
Quick search for 'mizu foam' will help.
Make sure the drain is free and use a pump sprayer to give the fins a good flush afterwards.

And shade the compressor if possible.

Regards,
Dicko.

Title: Re: Question on split system aircons.
Post by: paceman on February 10, 2017, 06:23:32 AM
Give it a good clean out.
Quick search for 'mizu foam' will help.
Make sure the drain is free and use a pump sprayer to give the fins a good flush afterwards.

And shade the compressor if possible.

Regards,
Dicko.

can you use this mizu foam on the outdoor unit?  my fujitsu units are due for a clean...
Title: Re: Question on split system aircons.
Post by: Mudguts on February 10, 2017, 09:24:17 AM
can you use this mizu foam on the outdoor unit?  my fujitsu units are due for a clean...
I believe so. They have a pretty good website with some good FAQ.

Regards,
Dicko.

Title: Re: Question on split system aircons.
Post by: KeithB on February 10, 2017, 03:11:18 PM
I'll try the Mizu Foam next week. Thanks for the tip.
I did try running the water mist into the back of the compressor today and it has made a noticeable difference in the 38 degree heat. So much so that my wife commented on it without knowing what I had done. So it must be true.
Title: Re: Question on split system aircons.
Post by: cheif carlos on February 10, 2017, 11:03:38 PM
Set hoses to spray onto a 40ton unit (about the size of a small truck) when 3 of 6 fans failed and had it run on water for about a month.

So yes water adds to the cooling affect
Title: Re: Question on split system aircons.
Post by: prodigyrf on February 11, 2017, 10:31:36 PM
How old is it as it may need topping up the gas unless it's not quite rated for the area/volume and the stinkers find it out.
Title: Re: Question on split system aircons.
Post by: KeithB on February 11, 2017, 10:45:03 PM
The area is way to big for the aircon on super hot days. Great in winter though.
Am loving the water mist.
Title: Re: Question on split system aircons.
Post by: cheif carlos on February 12, 2017, 03:07:58 AM
The area is way to big for the aircon on super hot days. Great in winter though.
Am loving the water mist.
hope you put the spray on outdoor unit.

had to turn the aircon up today from 24 to 25 as it was getting too cool and I live almost at Penrith. I so hate my 19kw 3phase AC  ;D
Title: Re: Question on split system aircons.
Post by: prodigyrf on February 12, 2017, 08:16:03 AM
Eighteen degrees and light shower or two in Adelaide this morning- http://www.dorotheamackellar.com.au/archive/mycountry.htm (http://www.dorotheamackellar.com.au/archive/mycountry.htm)   :cup:
Title: Re: Question on split system aircons.
Post by: Joff on February 13, 2017, 10:58:38 AM
yes, spraying water on the condenser will give your machine much greater capacity. Do it for too long (months or years) and the aluminium condenser will fall apart.