how it should works for gas refill? isn't it needed to be filled in on each service? chemical wash will dismantle the whole AC unit..

Thanks for the clarification, i was looking at Midea Daikin & Mitsubishi.
Seems not much place selling Mitsubishi and i heard the spare parts are exp.
For Daikin is abit pricey than Midea but the it's cooling is faster, am i correct?
Some salesman say avoid LG as always got issue. In dilemma of choosing AC, it's harder than choosing TV

as what mentioned by ozak at post #5916, indoor unit should be taken down to wash.. wonder how it can harm (the unit or compressor) in long run?

Dear Sifu and Pros,

May i know what the fuss with Daikin? is it still the same with Acson?
i see the remote control still the same.
And they are introducing latest tech R32 inverter.. urusara.. premium.. infinity.. standard.. too many series and confusing.
standard Q series price still low.. but infinity the price is higher than Mitsubishi.. i think R32 inverter will be more costly.
I just chatted with Mitsubishi CS.. they said R32 inverter is new tech.. more energy saving and environmental friendly.. they said their new model is coming out soon.

Dear Sifu and Pros..
is R32 inverter worth investing? and what's the big deal about it??
kindly advise..

hi, if the aircon copper routing until 51ft for 1.0 HP. Will it take more energy to cool and take longer time to cool also? tq for noob question.

hi sifus,

any advice on Acson aircond?

regarding daikin aircond, or general aircond per say...
does inverter aircond uses r410a or r32 as refrigerant?
any difference, been reading some news, but find it confusing

generally R32 cost more, as in Daikin inverter 1hp with R32 cost around rm12++
where as daikin inverter 1hp with r410a cost around rm10++

any advise?

Hello guys,

If I want to know whether my new apartment provides the aircond piping is inverter copper, can I know through the piping they provide? Coz its 0.61 type piping but when i asked the management they just told me its 0.61 and im planning to put Panasonic AERO series aircond.

Or I must insist that to find out whether its inverter copper?

Here is my case,
I bought a house which came with aircon, but that unit has been empty for 2to 3 years( and the  aircon are also never  being used before), so it no need require to service before using it?

Dear Sifu and Pros!!

PLEASE HELP!!

My aircond keep on blowing the air which have the smell of smoke at night!!
Because some bastard keep on burn dry leave at night!!

I thought my aircond piping at the wall didn't seal properly..
and i re position my aircond and make sure the wall seal properly..
but the smoke smell still come from the aircond at night..

i call the aircond dealer.. they said the compressor suck the air from outside and blow into the room..

is that true?? i call Mitsubishi CS.. they said not true.. only use the air in the room..

previously i use LG non inverter.. then change to PANASONIC inverter.. then the problem came.. then i change to Mitsubishi inverter the problem still persist..

if compressor suck the air from outside.. how come the aircond at my living room and my another bedroom don't have problem.. all compressor install using the same wall.. same height..

master bedroom: Mitsubishi standard inverter  = smoke smell
living room: Mitsubishi deluxe NON inverter = clean air
another bedroom: LG standard NON inverter = clean air

If it suck the air from outside then:
1. Mitsubishi DELUXE NON inverter compresor has better filter?
2. But my LG standard NON inverter compressor also provide clean air

OR NON inverter aircond have better filter??!!

Sifu and Pros pleas HELP!!

1. They usually burn dry leave to keep the mosquito away.. those who do it.. SIGH.. i really doubt the local authority integrity to handle it..

2. The pipe that go through i already re position and seal properly.. paid RM200 just to make sure.. SHIT..

3. The coil is clean.. It only happen when there is burning.. can see clearly the smoke and suffocate by it when open window..

Living room.. another bedroom.. and master bedroom using the same design of window.. no smoke come in..

I'm living at an apartment.. when there is smoke.. the aircond will blow out air with smoke smell..

1. i will off it..

2. turn on ceiling fan..

3. turn on the aircond at another bedroom and living room.. switch to powerful mode and blast it all night..

then there is no smoke smell..

i have to put my nose very near to the window like tepek the window and breath in only to notice the smoke smell..
but it also the same with the living room and another bedroom..

if it coming from the window.. why the living room and another bedroom don't have smoke smell when i switch on the aircond??

Hi all any advice ? my current condo existing using R22 piping, but I can't find any new aircon running on R22. It is rented unit, don't think can do hacking.

Any air con R410 that's backward compatible ?

thanks for sharing on this. 
Never thought about this before, my contractor initially proposed me to hack around 26 feet along my wall for drain pipe.
With this method, can save my cost & my wall...lol.
So power connection for this pump will share with a.cond or separate?

feedback from usual AC guys, nowadays newer AC unit the coil is too thin, and so not recommended anymore to perform chemical wash.. he now only use heat-stim to wash the oil. unless the dirts are super stubborn then no choice to use mild chemical, but usually heat stim is more than good enough.. what's ur view?

AFAIK. Electricity is AC power. It have to be converted to DC power to work with Inverter. There is always some lost of power when you do conversion, may be 5 to 10%. Correct me if I am wrong.

Under-sized Invertor. Invertor will only save power if there are frequent stop-start operation. Same as car with frequent stop-start will waste petrol. If you have an under-sized Invertor air cond, it will be working full power all the time with no stop-start happening....so no power saving. And the AC to DC conversion will simply waste more money.

As a normal consumer, let me give unbias comment.

Mitsubishi aircon is the top aircon as the gas pipe is  huge, and with bigger blower fan and queit, powerful and bill saving. The con is the component is very expensive. U may need to change a total new aircon after 4-6 years.

Daikin compressor is "Rough" and noiser.. even worse than gree.. I suggest that you go and compare these aircon in hospitals where hospitals will have multiple brand of aircons. I have experience using these aircons. Most of the brand in Malaysia is designed for Malaysia, except ACSON... they looks queit powerful.. but more expensive.. please compare them in hospitals.. Daikin, after 1 year, most will give "jiiiii" sound (looks like capacitor problem small problem but anoying), the most noisy is Morgan.

Daikin compressor is damn small.. in fact the modern compressors are damn small with higher consumption of "bills". Morgan is powerful and very noisy compressor, and cheap.  Hitachi looks quality in built, but takes long time to cool a room down. Inverter theoretically "save money" and "queit", but the old traditional split units are even save money, faster cooling and quieter without inverter. Believe me, "inverter" nowadays is merely commercially term, and they weak in cooling in order to get more "stars".

My old Panasonic aircon can cool a room within 20 minutes, 24 degree set is sufficient.. my new inverter needs 8 hours to cool the same room with the need of 16 degree temperature set. Then you tell me, which saves more money?

How they are changing the gas from 410 to 32? Any problem with 410? I find 410 inverter works badly in cooling, at least for my hitashi and Daikin. My old 1.5 panasonic inverter works perfectly well, and all my 3 2.5hp new panasonic inverter, 1.5hp hitachi, 2.0hp Daikin inverter works badly. So.. something wrong with the new "inverter" aircon nowadays..

If i am you, i will compare the a) blower fan diameter which determines the internal noise in db b) the dimension of compressor which determines the efficiency of energy / cooling capability. The larger they are, the better. And also the pipe diameter. Get larger unit than you need to reduce dryness to nose and eyes, and save money. And learn how to clean your own aircon, for both internal and external units. It is damn easy where i clean weekly myself.
Before you buy,

a) What is your room size in ft.
b) Is your room facing west ?
c) How many side of walls have windows?
d) How many ppl and "hot" machine will usually stay in the room?
e) What is the temperature of your room now, and what temperature you are targetting?
f) How fast you want to bring down the targetted temperature?
g) Do you think moisture content of your room is critical to you? any nose problem? eye dryness?
The way i calculate the HP needs for me. Assume f=1.4 for extreme hot west room

HP = [65( 1.4 X size in ft + 100 X (number of ppl and hot machines) /] 8000 = ?hp.

f=1.4 will enable you to cool ur room 10 degree down within 1/2 - 1 hour time
f=0.6 for room that is shaded and facing east with no expose of sunlight
f=2.0 for kitchen, set n= 2 X number of kitchen devices that produce heat
f=0.9 for south and north facing.

these calculation is for 410 inverter only. Non-inverter please use normal calculation.
etc etc..

Agreed with your point on gas recharging. Have consulted with my installer that the cost of recharging R410A will be higher. If the pressure falls below 100psi, the entire system's gas has to be discharged fully before refilling. If it is above 100psi, can still top up. Where else R32 can be topped up at any pressure level.

I kind of suspect Acson and Daikin airconds are from the same manufacturer because I noticed that some aircond models have same specifications.

Looking for 1HP, 1.5HP and 2HP R22 air conditioners in Klang Valley. Any recommendation where I can find? Preferably with inverter.