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> [Home Appliances] Air-con Household

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Kiding
post Sep 1 2010, 05:42 PM

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QUOTE(Greenfingers @ Aug 29 2010, 05:49 PM)
Hi
1. May I ask your opinion whether the air conditioners above are suitable and which is/are most suitable in terms of durability and efficiency? Any other recommendations? Any knowledge of whether any other shops are giving a better price? My house is in Puchong.
2. Normally, no transportation is provided and the shop will recommend the installer so that the installer will transport the air conditioner to the house. May I ask what are the necessary technical procedures  on the installation that I need to check and confirm with the installer before I appoint the installer?
3. Please advise on the proper wiring and electricity connection as there is no ready air conditioner point ( I understand that there would be serious complications if the wiring is not done properly). Thank you.
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1. Your rooms are not big, so 1HP is good enough. if you intend to turn on the air con for more than 8 hours every day, and not setting temperature below 25 degree, then you should go for inverter air cond, it can save a lot in the long run. currently the hitachi inverter air cond is the most efficient one, but also is the most costly. I'm using the Hitachi air cond to cool down my master room (250 square feet), set the temperature at 26 and turn on 8-9 hours every day, it used around 2.5KWh per day, which is around 80 cents only.

2. Get the air cond from the air cond shop, they will do everything for you, and the price is cheaper than sengheng. normal installation costs RM150 to RM250, depending on inverter type or normal type.

3. The air cond shop standard installation including hacking your wall, install air cond pipes, but do a little bit conceal, if you want to have nice conceal and paint, you will need to pay extra. inverter air cond pipe is different than normal air cond, it's thicker and bigger, and also you need to check whether your existing wires can be used for high current appliance, you may need to lay another wire from the DB box for aircond.

This post has been edited by Kiding: Sep 2 2010, 02:00 PM
Kiding
post Dec 29 2010, 01:01 AM

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QUOTE(well @ Dec 29 2010, 12:27 AM)
if 16X30,how much hp ineed for my room?? notworthy.gif
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http://www.inspectapedia.com/aircond/AirConditionerChart.htm
Kiding
post Oct 18 2011, 08:50 PM

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QUOTE(papaya2 @ Oct 18 2011, 03:41 PM)
hi all

my pana inverter air-cond bought on last year Oct, it had econavi.
now i notice air flow come out only half side of the louver, means just right side got air & no air from left side.

is this econavi fail function? or need a service maintenance?

if a lot dust inside, there should less air flow, but can not be 1 side got air only....really no idea...can any ppl help?
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My Hitachi AC had the same problem as yours, I just cleaned the blower and it back to normal.
Kiding
post Oct 24 2011, 01:05 AM

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Both are the inverter aircon, but the RAS-SX10HY is fully imported from Japan and I think it has heater as well, so should be very pricy.

RAS-X10CZ has one of the highest EER 1HP airconds, which means more energy saving and it has 10000BTU capability, so in a small room, it should have fast cooling effect.

If you turn on the air-cond more than 8 hours daily and willing to set the temperature at 25 degree, get the RAS-X10CZ because it is pretty good in energy saving.

This post has been edited by Kiding: Oct 24 2011, 01:19 AM
Kiding
post Oct 24 2011, 01:15 AM

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QUOTE(lazzy_dogg @ Oct 24 2011, 01:10 AM)
one of the aircond guy told me that hitachi is not only more expensive for the air cond compared to the others but also spare parts prices are also more expensive.... can anyone here comment on this?
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I think their parts should be expensive, but Hitachi air-conds offer two years parts and labor warranty, and compressor is 7 years warranty. which is not really bad at all.
Kiding
post Oct 24 2011, 12:49 PM

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QUOTE(ongLAI @ Oct 24 2011, 10:41 AM)
Wao, thanks for the sharing.
Do you know how much it cost for the one you recommend?
I found it from Jusco was RM 1599, kinda pricey....
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The hitachi air-cond price is pretty steep, and difficult to see discount, the lowest I saw last time was 1499 but I forgot where I found it.

Anyway, in the long run, it still save your money by using inverter air-cond, so I don't really mind the higher initial cost of inverter air-cond.

BTW, Mitsubishi is as good as Hitachi, and a bit cheaper, although the EER is slightly lower than Hitachi. it also offer two years parts warranty and 7 years compressor warranty.

This post has been edited by Kiding: Oct 24 2011, 12:51 PM
Kiding
post Feb 7 2012, 08:44 PM

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QUOTE(weikee @ Feb 7 2012, 07:02 PM)

Assume 1hp = 1kw, 2.5hp =2.5kw
Monthly running bill = (3kw x 8 x 30) + (2.5 x 8 x 3) = 720 + 60 = 780 Kw / month * 0.40 (using 40 cent per watt) = RM 312

If run for 24 months = 312 x 24 + 4563 = RM 12051.00
For Inverter
3x 1hp, + 1x 2.5hp
Total investment = 6503

Assume 1hp = 1kw, 2.5hp =2.5kw 
Monthly running bill = (3kw x 8 x 30) + (2.5 x 8 x 3) = 720 + 60 = 780 Kw / month * 0.40 (using 40 cent per watt) = RM 312
(Say 30% saving based on Panasonic website) = RM 312 - 30% = 218.4

If run for 24 months = 218.4 x 24 + 6503 = RM 11744.6
So the saving for 24 months is 306.4

Here some of the things to consider
- Inverter piping are more expensive to install,
- Don't forget, this is as per claim by manufacture, at maximum saving. Which when you set temperature to 23c the saving may not be that much.


So the real saving is maybe after >30 months
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I have 1HP non-inverter Panasonic aircond, use in 10' x 17' room, turn on 8 hours and set to 26 degree, it consumes around 5-6KW
I have another 1HP Hitachi inverter aircond, use in 12' x 18', turn on 8 hours and set to 25 degree, it consumes around 2-3KW

so my Hitachi inverter aircon can really save around 50% which fit Hitachi claim that able to save up to 56%.

Imaging I turn on aircond daily for 8 hours, which use 5.5KW x 365 (non-inverter) = 2007.5 for a year, by using inverter, it can save 50% which is 1003KW which translate to around 1003 x RM0.3 = RM301, hence I can save RM301 per year per aircond, within two years, my ROI is RM600 which offset the premium price, and the rest of the years, I'm keep saving money which translate to lower cost of ownership.


Kiding
post Feb 14 2012, 10:17 PM

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QUOTE(weikee @ Feb 14 2012, 07:02 PM)
22c non inverter will flipper around + 2c (maybe more not too sure).

25c for inverter will flipper but less than non inverter.  But 25c is still 25c is not same as 22c.

E.g. If i go get myself a inverter fridge, and set it to 1c, ice still melt because is not 0c.  You cannot say inverter 1c = non inverter 0c
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When one set the temp to 22c, does it mean the aircon will make the whole room at 22c? perhaps yes, perhaps no, it depends on your aircond power, room size, number of windows, number of persons, location, the room temperature may not reach 22c even the compressor running all the time.

Human sense temperature differently, there is a term call windchill effect, if you set the temperature at 25c but you are directly facing the aircond blower, you will feel the temperature below 25c probably like 22c, but if your position is quite away from the aircond fan, you will feel it is much hotter.


Kiding
post Feb 19 2012, 09:08 PM

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QUOTE(spdboyz @ Feb 19 2012, 08:08 PM)
My room exposed to the sun in the morning until afternoon. It's very hot and ceiling fan alone is not enough. That's why I opted for air cond. 26c is fine for me biggrin.gif

Btw, how come inverter air cond compressor also will stop spinning like non inverter? Shouldn't it spinning at variable speed without stopping?
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Hitachi inverter aircon also does the same thing if the temperature is set to higher such as 26c, when the aircon sense the ambient temperature is lower than your room and the aircon doesn't need to cool the room anymore, hence it shutdown to further reduce the energy use, when it start back again, it still under partial load not like traditional aircon which does full load running.
Kiding
post Mar 26 2012, 11:41 PM

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QUOTE(kimsim @ Mar 26 2012, 08:50 AM)
Yes my hitachi inverter 1hp at level 1 fan speed is already consider to hear to airfall noise.
The sound is something like si si si..
If used on quiet mode ke ke won't feel my room temp can cooling down at all.
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My Hitachi inverter 1HP is also quite noisy when at full fan speed, is as noisy as York!

Normally I will run at the max FAN speed for 1 hours to cool down the room, then before sleep, just turn on the sleep timer, the fan speed will go down to min speed and it is pretty quiet, but sometimes it still have some high frequency sound for a few minutes, quite irritating.


Kiding
post Apr 2 2012, 10:27 PM

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QUOTE(weikee @ Apr 2 2012, 09:04 PM)
Not enough. Minimal 1.5, best will be 2hp.
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1HP is good enough, my master room even bigger than 14x17, I just use 1HP hitachi inverter.

Unless the room windows are facing west, and it needs to be turned on during daytime, then may consider to use 1.5HP
Kiding
post Apr 2 2012, 11:01 PM

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Use this calculator to choose your aircond

http://www.goodhousekeeping.com/home/air-c...oner-calculator
Kiding
post Apr 3 2012, 05:26 PM

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Hitachi and Mitsubishi Mr Slim inverter aircond have higher EER, and provides 2 years part warranty and 7 years compressor warranty. although they are expensive than others, it is good to invest it in long run.
Kiding
post Apr 3 2012, 06:42 PM

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QUOTE(slackinux @ Apr 3 2012, 05:58 PM)
Panasonic Inverter 1.75HP has the highest EER among all the Panasonic models, i.e. 12.7
How about Hitachi and Mitsubishi?
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Hitachi RAS-X13CY (1.5HP) has EER of 12.7, BTU is 12,630
Mitsubishi Mr Slim MSY-GE15VA (1.5HP) BTU is 14,330, EER is 11.3

I have Hitachi RAS-X10CZ, it has highest EER of 13.4 among all 1HP airconds, really energy saver, only drawback is kinda noisy sometime in quiet mode.

if you want to have faster cooling, mr slim has better rating, although it might not as energy efficient as Hitachi.
Kiding
post Apr 3 2012, 08:07 PM

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QUOTE(slackinux @ Apr 3 2012, 07:58 PM)
Are you sure Mitsubishi Mr Slim MSY-GE15VA (1.5HP) BTU is 14,330? I think it should be 11943.
http://www.coolserve.com.sg/htmdocs/produc...ils.asp?id=2398

It is as powerful as Panasonic 1.75HP version
Kiding
post Nov 30 2012, 06:35 AM

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QUOTE(dani_irwan @ Nov 29 2012, 12:27 AM)
Guys, I'm planning to get a new aircond for my bedroom, which has a 9ft ceiling height & non-insulated celing (hot air from top of roof goes down to our room..phew!). My bedroom size is approx 19ft x 12ft or roughly 21 metres square.

I'm currently using a Panasonic 1HP aircond unit (model CS-C9HKH). This unit is 4 years old already and not quite powerful anymore. Now when I set the temperature on the remote to 16C, my ambient room temperature goes down to only 25C (measured by thermometer)! Panas la!

Now should I get a 1.5HP aircond or a 2HP aircond? What spec should I look for...i.e what BTU and what kW rating should be enough to cool my room to about 18C at night?

I see that now Electrolux 1.5HP aircond is quite cheap..RM1.3k or so. And Sharp 1.5HP is not bad too, about RM1.2k.

And can anyone vouch for Electrolux aircond? I know their other appliances such as vacuums are good, but airconds ok or not?

Would appreciate any help!
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227 square feet room with poor heat insulation should get at least 1.5HP air cond

BTW, how come the roof air can circulate to your room? the ceiling is not concealed?

If I were you, I will fix the ceiling issue first, otherwise, you electric bill will be more expensive than a new ceiling installation in the long run.
Kiding
post Nov 30 2012, 08:53 PM

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QUOTE(Titan_Gunners @ Nov 30 2012, 09:11 AM)
Mitsubishi Mr Slim non inverter..ard 1.3k exclude installation..
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Just install Mitsubishi inverter MSY-GE13VA today, the compressor and indoor unit are damn quiet compare to my previous Hitachi inverter aicond, I'm regret and should have got it earlier.

Mitsubishi Electric inverter aircond is now called Starmex , no longer Mr Slim.
Kiding
post Apr 2 2013, 04:10 PM

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QUOTE(kadajawi @ Apr 2 2013, 03:07 PM)
I believe Mitsubishi Heavy Industries enjoys a great reputation together with Daikin. After that Panasonic. Then all the lesser brands. At least that's what I read when I was researching.
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I have York, Panasonic, Hitachi inverter, Mitsubishi inverter aircond, in term of queitness, energy saving, cooling capacity, Mitsubishi inverter outperform the three.

Hitachi inverter is not bad either with pretty good energy saving, it just not as quiet as Mitsubishi.

York cooling pretty good, but noisy and not power saving.

Panasonic is the average player, not the best but also not the worst in all aspect.
Kiding
post Apr 15 2013, 10:01 AM

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QUOTE(~Curious~ @ Apr 14 2013, 11:15 PM)
i tot mr slim is mitsubishi,now got two companies known for mr slim?
i was told rite,tht mitsubishi air-con wont cool as much as they claim wor (eg 1.5 hp,u'll feel llike 1.2 hp coolness nia wor)
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My Mitsubishi Electric 1.5 hp inverter aircon cool down my room temperature to 24 when I set the aircond temperature to 26.

Kiding
post May 13 2013, 06:28 PM

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QUOTE(DemonTweakZ @ May 13 2013, 06:03 PM)
Guys,
I just bought an aircond from a shop in USJ.
Carrier brand. The fella say BTU very high but when i check back, its not very high la. its ok.
Problem is i've been trying to get some info off the net regarding this aircond unit. But nothing lar.
Why can't I find any info? The model is KCS312703

Also,
Something weird about their website. Read the write up:

» Click to show Spoiler - click again to hide... «


Is there something fishy?
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Carrier was one of the leading and best aircond manufacturer many years ago, nowadays I hardly see this brand in the market, I think they can't compete with Japan companies.

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