well need to go back home and measure the thickness then. many thanks for the feedback

Only 3 wires so might not for Inverter. please double check.

If your coppers are too thin, then I think you can look at Daikin. I think Daikin advertises their as being able to work with normal copper piping. You can go double check.

The installer put in 3 wires, even if your copper is thick for inverter your selection of inverter a/c is limited. Cause some inverter use 5 wires, and some use 4 wires.

If the copper hose is for inverter, you can still use some of the inverter (4 wires) by using the copper hose as earth, the red = Live, Black = neutral, and green = Signal/communication.

sigh the contractor insists that it is a inverter wiring with thick copper. later go to sengheng to clarify more.

This post has been edited by Uzumaki NaruTo: Nov 29 2011, 05:32 PM

Is he expect you buy Daikin Inverter?

This post has been edited by Jo_da48: Nov 29 2011, 05:37 PM

Can daikin works with only 3 wire? I never knew that there's a specific condition. Is Daikin any good? if its the only way why not then. Rather than paying him to hack the wall again.

Dunno about how many wires Daikin uses but daikin power point is unique.
Daikin Power point, next to compressor (outside)
Others Power point, next to air cond (inside).

Daikin is supposedly the best. They also own OYL (York, Ascon, and others)

Here's a better photo. i notice there's a second copper host. can it be used for inverter?


What about this 3 wires that is outside the rubber hose? cannot use?

Have you brought the aircon already? Have you show the aircon or manual to the contractor what wiring and tube need to be use?

Best is to get the supplier/ installer of the aircon that you intend to get to take a look at the piping and wiring. He should be the best person to advice.

Go to the compressor area check how many cable. That is the best.

The cable outside the hose could be incoming power. Or maybe is signal control. If signal control it will terminate at the compressor area too.

thanks for all of the positive feedback. Will scout around legend / seng heng for good deal tomorrow.

the 2 cables outside is it just hanging there or connected?

Why not get the contractor who install the piping for you to install the air con too? better get the same guy to do the job end to end to prevent finger pointing in future.

This post has been edited by philipcs: Nov 29 2011, 10:08 PM

Agreed. And the best is asking him to confirm whether indeed for invester before you purcahse it...
because after you purchase and deliver, you on your own and your contractor could said is "Sorry, mistake"

the small copper pipe for liquid while the big one is for gas, these 2 copper pipe are for refrigeration cycle, Liquid+vapor (in small pipe) -> inlet(fan) to give cood air -> become vapor in big pipe -> outlet(compressor/condensor) -> liquid+vapor (in small pipe).

inverter and non-inverter also use these 2 copper pipes for refrigeration cycle, but inverter need more thicker copper pipe.

the 3 wires located outside the rubber hose is air-cond power point, to be connected to the inlet (fan), while the 3 wires wrapped together with the copper pipes are connected from the inlet (fan) to outlet(compressor) as power and signal.

if you have asked yr contractor for use inverter air cond, i think yr contractor wont con you to supply thicker copper pipe because yr air cond installer will know at the end.

This post has been edited by papaya2: Nov 30 2011, 10:27 AM

One is called high pressure another is called low pressure

Just found out that Panasonic is having a promotion where you can extend the warranty period for your Pana AC for another 2 years for RM50 per year. (for 1HP)
The 1.5 HP will be slightly more.

i installed Midea 2x 1hp basic and 1x1.5hp inverter. Looks n feel ok. let me comeback with feedback after few months.