Also inverter running at 100% load is actually less efficient than non inverter.

Whatever the gas R22 will be phase out, so in future we maybe running the same gas for both inverter or non inverter. Or maybe another type of gas.

If your a/c rated 13.5k btu, and your house need 13k btu that mean your ac may need to work at Max power to retain the room cooling. Better get bigger size.

Have you factor in time to come R22 gas refill will be more expensive? Is like car a/c gas now try to refill the old gas is getting expensive.

I did not follow much on a/c pricing since i move. What is the price of Panasonic inverter vs Daikin R22 inverter, what are the price difference, and can the price difference use for compensate the piping cost?

My last comparison was 2011, the Daikin and Panasonic difference allow me to buy Panasonic, and the saving use for piping and still have some $$$ extra for tea.
If I recall the difference was about 150, and installation difference was only RM 100. <this is for standard installation>. So to me Daikin or Panasonic for normal purchase with installation was not much difference.

But well I did not use Legend installer because I had mine conseal and install by another contractor.

Many people say underpower, have they compare BTU/watt ratio? I compare few model the ratio are not much difference. Efficient is when BTU/watt ratio are high. Meaning High BTU with less watt. Panasonic have lower btu than some other brand, that also mean using less energy.

I use Panasonic for many years, no problem. Except my new house inverter but is not panasonic unit problem is the pipe having micro leak. All fix and so far so good.

How much more for the service R22 vs R410? And if you clean the filter every month. Actually recommend is once every two week. you don't need to service every year. Maybe once every 2 years.

How much difference for R22 vs R410 service? my R22 service is 100+ each time, for R410 is just additional 10 to 20 buck only. When my a/c guy service he take out everything, every single parts and clean, and isolate the circuit boards. My service guy can take like 2 to 3 hours to services one a/c. Is really full services. Which I think only necessary after few years.

How many time the Ac on/off in one hour? The switching is not the main culprit. Unless it switch hundreds of time in an hours.

Most modern AC compressor have reduce the inrush current, it does take higher current but not that much of spike. I never remember my A/C compressor switching on/off that frequent. I do think the behaviour depend the temperature set. Which I usually put 23.


BTW, Car A/C with climate control now don't cut compressor that frequent and use radiator water to control temperature.

Your temperature before and after also different. What is the kWh usage if set back to 23?

Sure yes.

To have a fair comparison. Previously you set your old Ac to 23c but now you set 24c if both setting give you same comfort level, very likely your old unit sensor not working well. Because inverter and non inverter, temperature still temperature all using celsius.

No doubt on saving when inverter is use in enclosed environment. is for sake of comparing apple to apple and actual saving with the accurate data.

1L and 1.5L car is much different? Even the number are difference but same unit.

This post has been edited by weikee: Oct 12 2013, 12:14 AM

If you have the model, can try compare with the SG energy database see can find your model, they do it pretty good with more practical real life test.

This post has been edited by weikee: Oct 13 2013, 11:05 PM

Yes minimal. Some need 5 so better check the requirement for the model you plan to buy.

Press the powerful button on the panasanic remote. It will overdrive the Ac. I see most Panasonic inverter have this function.

Compare it when under normal, and when the led on the blower change color. My Panasonic blower have a led indicator red being max, yellow medium and blue low.

This post has been edited by weikee: Jun 24 2014, 03:16 PM

https://forum.lowyat.net/topic/3267255

Powerful mode make the Ac work harder cold the room faster? So you it cost more or less when it work more?

Read your manual. You see what is Tue different for each led.

Don't look only at low watt usage. You need to know the BTU/Watt, higher BTU/Watt mean more efficient.

yes, and a proper sizing is important, bit higher spec is also ok because the compressor will not overload/overwork.

No, all household A/C up to 3HP are single phase. Unless you go for 4HP or higher you may have to go with 3 phase.