By the way, not really leaking. The main problem is when the pipe surface temperature lower than the dew point of surrounding air in ceiling, condensation will happen at the pipe surface. This problem can be solved using pipe insulation.

Thanks your advise. I think inside plaster ceiling better than conceal wall because conceal wall also will leaking. Later need hack those wall. If plaster ceiling more easier.

Any contact? How much costs?

Thanks for the details. So you think if I go for the inverter unit would be better? My hall area is like 18' x 25'.

Definitely is better... more cooling and more reliable for comfort air.

Below are quotation i get from contractor.

1) To conceal Air Con Water Pipe & Copper Pipe - RM250

2) Installation Charges for 2.0HP PANASONIC Inverted Air Con - RM250

3) Installation Charges for 1.0HP PANASONIC Inverted Air Con - RM200

4) To supply 2.0HP Air Con Copper Pipe - RM18

5) To supply 1.0hp Air Con Copper Pipe - RM16

Are this price reasonable?

looking to install a 2.0hp MHI for my living room. any good shop/installer to recommend? around PJ area

Seems reasonable. My friend got quoted rm450 to conceal pipes only. I think the distance was less than 10 feet also.

Btw, anyone can recommend a good installer to install air cond around kepong?

Guys..

i understand that 10 feet copper piping is usually provided for free, but that is only when the installer comes from the same shop that we bought the come..

if I buy aircond from different shop, and ask different installer to install the aircond, does the installation price (~rm200) still includes free 10' copper piping or not?

Mostly the installer won't discount for u unless aircon and installation is same party.
I think the best way to buy an aircon is buy from aircon man, mostly they got lower cost because they don't have shoplot.
and if added up installation mostly it is slightly cheaper.
but you might not get warranty service like electrical shop.

If you are planning to install aircon with 25-30 feets, I think it is better to engage with aircon man or contractor.
because you pay 3 things to the same party : 25-30 feets copper pipe and outlet conceal, aircon itself, and installation fees.
A lum sum there you might get discount.

So have to choose a trusted aircon installer. at least he will come to have a look if got any problem.

This post has been edited by sovietmah: Nov 8 2013, 10:17 AM

It has some truth.

As large area without proper insulation means the area may hard to achieve the pre-set temperature in the remote control. (if one set at 18~22).
As in this situation, both inverter and non-inverter also need to run a full blast condition, aka 100% motor running.

At 100% running, the difference between inverter and non-inverter won't be too significant.

Thanks for yr advice. I've just spoken to a dealer and was told the wiring for the inverter and non is different, so need to prepare properly otherwise installing an inverter set in a normal wiring system will not render the inverter mode effective. Also need to check the piping, for Daikin, whether R22 or R410 system, so need to ensure before buying. Most of the time, installers will just do a R22 system, but wiring for both these systems is still the same. Just found out that the price for the new R410 system is the same as the old R22, why? Because normally, users would want to buy this new one, but because piping done is not prepared for this system, so need to change back to old R22, therefore R22 is selling very well. Which thus cause Daikin to drop price for the R410. As R410 uses enviro friendly system, now I pening whether my installer have already embedded this new system for me, otherwise I can only use the R22.

As for the issue of choosing between an inverter or non, I'll decide for the bigger Hp inverter, so the motor will not be overworked to achieve the preset temp. In the long run, there will be more savings, but in my case, may take a longer time period coz I don't use it often . Now is to check for the piping to decide betw the R22 or the R410.

I want to install an air cond in my room - 14ft x 10ft. Does 1hp sufficient or do I need to install 1.5hp?

only inverter 1hp can sufficient, if non-inverter just good luck and go for 1.5hp.

R410 is the newer and future gas to be used.
R22 is going to be obsolete. It will be not allowed to be manufactured around 2020, if not mistaken (I forget which year).

Most inverter out there are using R410.

Since R410 need a different piping compared to R22, as R410 being run at higher pressure, which need a thicker piping.
R410 may incur a higher installation cost due to piping/wiring cost + gas itself more expensive than R22.

So if with concealed piping and wiring, please check whether the piping and wiring is suit to inverter.
If not, a replacement of piping/wiring may needed before hand if one intend to install inverter.

Yes, it is important to check the room need how much Hp, an underpowered inverter air-cond won't able to save the electricity that inverter is designed for.

This post has been edited by cherroy: Nov 9 2013, 12:18 PM

wiring for daikin inverter is same as non-inverter?

as mitsubishi inverter needed diff wiring...

Wiring different for both. Piping for r22 & r410 are different. Both these are inverter, but different types of gas. Most installers use the normal piping, which can suit non-inverter and the inverter R22. Whereas for R410 inverter, piping is different fr the other 2. This is what I gather fr the dealer and my installer.

if wan inverter then ned to told wireman to pull the cable to correct place...else will end up like normal one ..... cos for them is to pull standard, some even duno..

I would like to know my contractor install like this in future have problem or not. Thanks advise.


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