Thread: Daikin or Fujitsu AirCon

Hi Ron

I am a Project manager for a construction company.
We thoroughly researched the whole industry.
Biggest difference is air-output.
Fujitsu is as reliable as the others, they do however lack the air volume they can push out. Check how much each unit is producing.
The other thing with Fujitsu is at very low temp setting, they do tend to freeze up and unit will go into de-ice for quite a while quite often.

Mitsus are good but their wall control panels are very hard to program, their damper motors that control each room etc are o.k but up to Daikin.

We are now using Daikin and yes a bit more $ but system pushes out way more air, the company has a engineer working out best places for vents which are usually directly over windows as they are the heat loading zones and placed away from doors so that the cooled/heated air has further to travel through the room to the return air duct.

Their outdoor units are very quiet like most I guess and have scroll motors for slow start up and of course inverter for energy saving.

I recommend you upgrade to gold duct work for reflection of heat and better insulation if your roof space gets very hot in summer.

Best settings are 21 degrees in winter for heating and 26 for summer for cooling.
On hot days just leave system on 24hrs and let it do its thing, vice versa for winter.
That way the hot and cold air will heat and cool the walls as well as radiantly heat furniture etc. Making system work less harder and saving you money and leaving your space comfortable.

The wall control pad is also very easy to set up.

Hope this helps and have a great day.

I've had a Daikin split for two years, no problems at all. Glad I spent the extra.

dakin used to be the best but I now think mitsubishi are better in reliability. I have spent the last few months around dakins and found them to leak water inside, noisy fans, unbalanced fans, crap quality plastics, noisy and squeeky condensors, and a few other things. Apart from all that they still cost more than the mitsubishis. i am sure there are many other good brands. the installer asked me not to get a fujitsu since they changed country of manufacture because he has to many call backs and did not want the problems.

Originally Posted by rick130

. IMO none of the others perform as well in our winters @ -7*C, are as quiet, both the indoor and outdoor units or have the same build quality, .

G'day Rick,

Do all of these units have heaters in the out door units still for defrost @ <+2 or are they now doing short cycle reverses to defrost?

Daikin haven't used Flon heat for 15 years I think.
They just reverse the cycle for defrost, as they always did, but these four brands seem to freeze up much less in the first place.

I had a look at an LG (non inverter) about four years old the other day and it doesn't even have a de-ice setup ! It was just a solid block of ice.

Originally Posted by Stepho_62

Ron,

In a past life when I lived in Taswegia, I used to work as an advisory officer for the local electricity distributor.

So putting this into context the systems I've had experience are heat pump inverters. That is they are genuine dual cycle machines designed to heat and cool (who needs aircon in Tassie eh)

Most of the people I advised selected Daikin, certainly for ducted systems. I don't have a preference for either but from my experience the Daikins are better built with more robust heat exchangers ( specially in salt air areas) more robust electronics (for area's with crap supply quality) and quieter fans both on internal units and external units.

Having said all that I've seen Fugitsu units installed and perform faultlessly, my only real criticism of them is that they seem to be noisier on ducted internal units.

One of the most important factors is not so much the unit itself but how your house is built.

In Oz for the last 50 years we have been building an amazing array of houses with little or no thought about insulation. Given that on the heating side of the equation the thermal exchange of these machines is 1:2.68 and about 1: 2.2 cooling they are a brilliant machine.

The best way to capitalise on this something for nothing return is make sure your house is properly insulated. Roof at @ least R3, Walls R2 minimum, good door seals and lastly but by no means least work out the area of glass in the verticle wall areas and double glaze it.

Here ends the sermon .

I am in tassie and we just put in an 18kw Daikin ducted had very good recommendations.
cheers

Originally Posted by p38arover

We are planning to fit ducted air con to our house.

We've had a quote on a 14.5kw Fujitsu inverter system with 8 outlets but should we consider Daikin instead?

What are they both like for tech support and spare parts support?

seriously ron.........whats the difference.....?

you know neither of will work for you.......they will just be faulty straight out of the box......
even the box will probably be ripped......

Ron,
I did investigation back in late 90s and Daiken was best after perusing all available spec sheets, installed Daikin split and had no probs for 5 years when I sold up and moved.
Up here I looked again and couldnt get anyone near here in to install a Daikin, so went with Mitsubishi, not quite as good, as the airflow does not have the range of speeds etc as a Daikin., otherwise happy.
Check spec sheets for all specs (power consumed, airflow, BTU's etc) and then compare, before deciding.
B