Does it require any special cooper piping and wiring point if i opt to use inverter model?

Can you point to me which Ac inverter need total of 8 wires?

Kimsim,

mind to draw out where is the cable connect to where?

inverter using 8 wire? so many

Any air cond only using 3 main wires, live, ground, neutral. This is standard for AC.
If someone is talking about 8 wires or 10 wires, that's bullsheet only. The indoor unit unit needs power to run its blower, the outdoor unit needs power to run its cooling fan. Other wires are merely signal wires for both of them to communicating to each other.
If you are not sure, don't simply DIY, very risky.

Not all inverter need power from outside, Panasonic don't need. Panasonic only need 4 wires. Neutral, Live, Eart, and Signal

so cheapest place to buy is from houzdepot sogo. saw a promotion rm799 until 27feb. but i wonder include installation or not

Question:- regarding the type of compressor there's rotary /swing and etc may i know what's the difference?

1) which better? or latest technology
2) apply to which brand using swing or rotary? ( im interested to know york / daikin and mitsubishi using which type)

thanks =)

All compressor can last over 10yrs. Unless have some quality parts issue. I even have a reciporating compressor (fridge type) convert using for generate air that last 25yrs till now.

But as age goes by, the compression will be lower and lower. As the part will wear and tear and cause some air leak over. All this part inside is metal grinding metal when turn. It use oil to lubricate. As a result, the compressor take longer time to run and cost more for bill.

Rotary have a higher eer compare reciporating type. Which now all the aircon is using it. But abit expensive than reciporating type as the manufacturing it a bit difficult. But probably better now I guess.

Swing type is improving type from rotary. But generally still a rotary type. Just tha vane side is modify.

LG have a linear type of compressor. But use for fridge. Not sure about their aircon.

Any hr also can discuss lah.

So hardcore meh till specific what kind compressor inside  aircon before can buy. As long as it have better BTU and last long. For the whole aircon, compressor is the most expensive part.

Most of the sound is come from the blower fan. Compressor itself is run very quite. Specially rotary type. Recipor type have more vibration due to the way it design. While rotary is run in eccentric way which less vibrate. But all this require a good quality compressor. It can further reduce the vibrate with the rubber damper at the compressor leg. I don't no what brand that make good compressor now. The pioneer and best is Panasonic for their rotary. Hitachi also produce compressor at their bangi factory.

For how a compressor vibrate and noise.... ehh... lazy to explain. It very technical and long explain. Boring to read also for ppl here. 

Not sure which brand have actual DC rotary compressor. But most of the so call DC rotary is actually a AC compressor with DC inverter. The inverter is convert AC to DC to variable frequency than back to AC.

I won't place the outdoor unit opposite the wall. It
1) damage the look of the house. Freaking ugly pipe and wire spoil the house design and look like a factory.
2) noise and vibration that transfer through the wall an window. I can't sleep with it. Even how low the outdoor unit noise.
I place it far away at the water tank roof top side.

Bro from this, i found out Daikin / York / Mitsubishi for 1 HP

Daikin is at 10.38 EER
York at 11.41 EER
Mitsubishi at 12.79 EER

which means Mitsubishi power consumption lower... and will save more am i right??

I don't no inverter or non inverter have any loud sound coming out or not. Cause all the while, the outdoor unit place far away back from my room. It superb peace without the noise.

My house is not big really. About 1000sqf.  I hate big house and am poor guy.

It is about how creative you hide and place something. If you know about the "character" of the aircon.

It depends, it is prejudice on non-inverter.

My company has 2 non-inverter, after 5-6 years usage, just outside of the office wall, just operate normally, little noise.

Variable speed is not guaranteed to have longer life than non-inverter as well.

Inverter is good, but it doesn't means non-inverter out there are easily spoil, whimming produce lot of noise

Non-inverter fanboyism also can say, inverter PCB may easily spoil as well, while non-inverter doesn't have this part... 

I have never heard of any inverter manufacturers claim
1. inverter compressor won't produce whinning sound on compressor, although yes, variable speed could make the whinning sound minimal.
2. Non-inverter compressor after using 1.5 years must hear sound. It depends.
3. Inverter lower fan motor won't easily create much than non-inverter unit

In actual fact, replace 6 years from now, is a good option.
As parts generally worn out over the time, be it bearing, mounting etc, also fungus growth inside blower, drainage etc.
Replace it every 6 years, ensure peach of mind the air-cond always working and in good condition.

It is needless to blast non-inverter until they are like not worth the money at all even though we know inverter has its advantage like 1
1. Less possibility of humming sound, but if part does wear out, it also can produce sound
2. Save electricity, but how much save, depends on the math
3. Potential durable than non-inverter, possible due to not running at full load all the time, but it doesn't mean a must, depended on quality built, as well as many factors.

If non-inverter is really so not worth to get it, by that time, then it will phase out itself, consumer won't buy it already. 

quite confusing about their catalogue..

there's power consumption and some of them didnt list out the power consumption..

im still in dilemma which 1 to choose, daikin or mitsubishi or york..  ~.~

problem is the electrical shop only sell Mitsubishi Heavy Industry Air cond