It is entertaining to watch the louver move up and down and sideways. You should try it.

---

Added on December 27, 2010, 9:55 amAFAIK, there are Mitsubishi Heavy Industry and Mitsubishi Electric. Different company so which one you are talking about?

---

Added on December 27, 2010, 10:06 amYou are wrong. It's not marketing talk. Just technically ignorant.

The truth is, Invertor air condition really does save money ONLY IF you know how to use it. It must be used in a situation whereby there are lots of 'stop-start' operation. Example, a powerful-enough aircond used in the bedroom whereby there are lots of stop-start going on. A Invetor air cond's compressor NEVER actually stop when the room are cold enough nor having to restart when the room are too hot. By preventing 'stop-start' operation, it save electricity. It's the same principle as car using more petrol when there are lots of stop and start operation aka town driving and less when on highway driving.

Used wrongly, it actually uses 10% more electricity and that's why you must never use it in an over-sized room.

This post has been edited by Optiplex330: Dec 27 2010, 10:15 AM

So how to use an inverter air con correctly?

Why is an Aircon thread in Home Entertainment?

I also wonder do Mitsubishi Heavy Industry sells home air-con?

How powerful-enough aircond are you talking about and how much savings in units of Kwh are we expected to see?

Yes, Mitsubishi Heavy Industry does have air cond http://www.mhi.co.jp/en/products/detail/sek-zgx_series.html

And so does Mitsubishi Electric http://global.mitsubishielectric.com/produ...ndex.html#air06


A 9000 BTU in a 20x20 feet room with window open during day time is not considered powerful enough. No stop-start occurring. Since compressor running non-stop, an Invertor air conditioner will actually uses 10% more electricity than a non-Invertor.

A 9000 BTU in a 12x12 feet room with windows all closed at cool night time is considered powerful enough. Plenty of stop-start occurring. In this case, an Invertor will save more electricity than a non-Invertor. Figures of 20 or 40% have been quoted. How much saving will depend on how often there are stop-start operation. More stop-start, more saving. Less stop-start, less saving.

This post has been edited by Optiplex330: Dec 27 2010, 05:06 PM

i did ALOT of research before settling on a panasonic...

costs a bit more than york but the "quiet" mode and the "ion" feature was a definite plus

Did you looked at Daikin?

yes i did look at daikin and that was the close 2nd choice and york was 3rd... in the end it was a toss up...but i choose the panny since my installer had a "jalan" for it...

From what i know about inverter that the compressor always started at a low speed rotation and the current consumption start at 1.2A and starting to rise until 4.2 A and stop as the room already cold enough.

Once the temp rises , the compressor kick in again but also at 1.2A all over again.

Standard air con started at 4.2 A from the beggining, hence the higher power consumption..

Thanks
regards
kevin

This is not my understanding of how an Invertor compressor works. They never stop entirely, just reduced speed/compression/consumption so nothing to 'kick in'. By not having to stop and then 'kick in' from standstill is the key to their lower electrical consumption.

Inverter work is very simple.
Outdoor condenser and indoor unit have both PCB board to control inside and outdoor temperature for maintain the same temp is without on off runing, cause if the temp. Is reached for compressor can be runs as slowly. For outdoor fan still will stop fo r while.
Event inside room just feel little bit warm and outdoor fan is runing indoor will be quicky to cool down.
So not need force the compressor is fixed at sane RPM to cooling down after reached compressor and fan will be stop for while indoor can hear the gas stop and runs again.
Fixed speed non-inverter model need more power to support the cooling to keep at same speed RPM and fan blower speed so when you near to the condenser blower it is very heat like hair dryer because compressor runing maybe need more cooling the alum. Coil. And compressor very easy to get vibration and noisy it is due to same speed without reduce the speed runing at same times.
So compared inverter and non-inverter will be short life. Must be change compressor mounting and fan bearing.
And also inverter compressor is used DC and fan motor together so can be save and long runs.
for example
Non-inverter model current input = 0.85kw x 8 hrs x 30 Days = 204kw
Inverter model 0.725kw after cold can be reduce to 0.241kw x 8 x 30d = 58kw only x 0.218 p/u. He he It is very cheap right.

---

Added on December 28, 2010, 8:02 am Inverter is same like car when drive faster without slow the car speed so it is without save the petro, if you drive slowly so your petro can runs longer distance.
It is what I can said.

This post has been edited by kimsim: Dec 28 2010, 08:02 AM

Bro, I dun understand your explanation, try and write simple english can?
Further more, how can calculate after cold? After cold calculation is not real world usage.

Ok let said your room temperature are 30C.
You switch on Aircon, your Aircon temperture is set to 25C .
So your Aircon operates may take how long to reached to temperature, for your setting?
After reached at 25C, so the compressor will be runing slow and it is call part load.
Inverter can keep to maintain the slow speed.
At same 25C until next morning.
Cause inverter work doest stop compressor and start on again so it is call waste your electricity.
When the starting for compressor may taken higher power to shoot up until your lighting will be tick.

It is not need to calculate one.
DC inverter compressor have their own input watt from 2.8(0.80-3.28)kw = 9550(2730-11190)BTU.
Input watt is 760(170-920)W showing here already mention the variable current input.
I'm get the panasonic S10MKH model.

This post has been edited by kimsim: Dec 28 2010, 09:30 AM

Normal Inverter need different and more expensive piping. So I am leaning toward the Daikin Inverter because it uses the same piping as normal non-Inverter air cond to save cost.

A friend who have both Panasonic and Daikin told me Daikin are super quiet in comparison.

So far York and acson inverter models in Malaysia market both are used the daikin product technology.
Remote control is difference and without eye motion sensor and used 2nd grade of R410A compressor.

This post has been edited by kimsim: Dec 28 2010, 10:28 AM

Because some people who want to set up a HT room want to know what air con is nice and quiet (so it won't disturb the movie experience)

it is an inverter air cond work like.

---

Added on December 30, 2010, 7:42 am
Hi All here regarding the non and inverter some clarified explanation.

Q&A question below.

Why non-inverter can be used more electricity?
Because non-inverter air cond compressor will taken more energy to cooling down the area and running non-stop speed without Low Med High speed.
 It is just only indoor FC to be sensor detect indoor actual room temperature in 29-30C from compressor may taken much time to reached your remote control setting in 25C. 
After the sensor has been detected. Only one thing compressor to be stopping and outdoor fan blower to be stop together.
Cause outdoor fan didn't have variable speed to follow indoor fan steps from your remote control setting.
So when you close to the outdoor condenser it is feel very hot air to blower out.
Totally outdoor condenser can be taken 97% of your switch on air cond electricity from 0 hour to turn off air cond.

Why inverter air cond can be cut into hall of energy usage?
Because inverter unit for all electronic device in outdoor condenser has built-in Mather board is call PCB board.
It is can be sensor detect the actual temperature from outside and indoor also.
All the compressor running speed and fan blower motor can be reduction speed it is depend indoor unit for your setting.
if set to 27C the compressor and fan only needed the low speed to be charge your energy.
How about compressor input watt?
It an can be from Low 100W to normal 725w to Max. Power 1150W.
It is also follow the BTU from 2.5-0.15-3.5Kw x 3412 = actual BTU.
Why inverter compressor can be so silent and quiet at all?
Cause inverter compressor is used the new DC motor inside and some have Twin rotary for reduce the vibration running. 
Compared to non-inverter compressor is still using the conventional AC motor inside. 
Here have some example to show the current input watt : non-inverter for normal 9000Btu type input watt per/hr = 0.9kw = 900Watt.
For inverter 9000Btu input watt = 760W it is already showing the energy saving.
But inverter can be save up to 70% of your room size and temperature setting 
To set 25C and also using R410A gas it is also help to faster cold down at only half and hour.
Then can be feel your room temperature is down. 
But for R22 gas still are same have to set in 23C and taken long hours time operates for cooling the room.   
For Inverter have Part load it is call half of energy saving running.
For example the compressor runs is from setting 25C temp. But is an using the gas R410a for help to top speed to reached at half and hour time for total is used normal rated : 760W after your room temperature is already 25C how the inverter works?
To be slow down the compressor speed and fan blower motor together or stop the fan motor. It is may only usage in low watt input at 150W only to keep maintain the same temperature until next morning. 
If the compressor on and off for non-inverter when the start up compressor runs may usage Max. power because have quick meet the same temperature in 25C after 25C and stop again.
So why it is very noisy.

Ok I just explain until here.
Hope you all can understand my poor English. Ha ha have a nice day!

---

Added on December 30, 2010, 10:58 amHere is showing some of non and inverter months usage and bills costs. Some tips here.

For example I compared the latest panasonic deluxe non inverter 1hp.
Input watt = 0.78kw x 3 units x 8 hrs x 30 days = Rm163.25 x 7 years = Rm13,713. 
Total installation cost for 3 units = Rm3600 + 13713 = Rm17313. Wow very costly.

For inverter units x 3 and cost for included installed Rm4500 looks like very expansive for 1 time paid out.
But in usage per day at 8 hrs.
Compared from panasonic deluxe inverter model.
Power input watt = 0.76x3 at 70% energy saving = 0.76kw x 8 x 30 = Rm40 per mths x 7 years = Rm3360 + units price 4500 total = Rm7860 maybe inverter is higher maintained cost at additional Rm1500. 
All cost = Rm9360. It is worth to buy inverter? For me yes I support inverter air cond all ways.



This post has been edited by kimsim: Dec 30 2010, 10:58 AM