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Air conditioning - Any recommendations please??

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Old 18-04-2010, 03:29 PM   #1246
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Does anyone know of a compressor (inverter unit) that is very quiet..

I stay in an old 3 room HDB flat and the compressor is just outside my master bedroom. My neighbour downstair complained my compressor noisy
yr current one is inverter too?
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Old 19-04-2010, 07:25 PM   #1247
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Does anyone know of a compressor (inverter unit) that is very quiet..

I stay in an old 3 room HDB flat and the compressor is just outside my master bedroom. My neighbour downstair complained my compressor noisy
Old unit sure have noise that where wear and tear occur, if you need low noise than you need to have regular maint or maybe change ur unit every 3 year.
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Old 19-04-2010, 07:52 PM   #1248
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Hi everybody seem like going for inverter? OK inverter is the latest trend now, but think twice before you decide on inveter unless you using your air-con more than 8 hrs a day then you can see significant saving in energy consumption. Other than that do all you know the gas R410 is expensive to replace everytime if need to servicing all gas should throw away and replace with new expensive gas, wheresle R22 is dirt cheap and no need to throw all away when servicing as this gas does not breakdown when there is a leak like R410. Do you know how much to replace a DC control card or the compressor in the inverter system if it breakdown, much more expensive with the existing non-inveter type of air-con parts and compressor. OK next insulation i notice there is a lot of mention of upgrading of copper pipe and insulation, wow if the salemen tell me to upgrade from 3/8' to 1/2' insulation then i will ask him is it i upgrade to 1/2' he can make sure that my trunking do not sweating wait long long. As for copper pipe all depend on the workmenship and attitude of the installer, if he is those type bo-chap type you upgrade to 1' thick also useless. As brand go for the more reliable brand like panasonic, sanyo and dakin, there make their own compressor so there can design to suit for their own use. Wheresle alot of the other brand there just buy off the shelve to assemble into their unit. Worst some oem without spending a single cent in R&D, so how to justify it performance and efficiency. Hope this help guy and gal here decide what is your need
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Old 19-04-2010, 08:53 PM   #1249
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R410A is Greener and more friendly to the environment and inverter compressor is quieter and having longer compressor life span than a non inverter unit.

i see the reason most people opt for R22 and non inverter is the higher cost of R410A and inverter.
if you got the extra budget just for R410A and inverter.



http://www.daikin.com.sg/svc_charges.asp

Daikin website got the charges of R22 and R410A
their price diff is not that ridiculously expensive.
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Old 19-04-2010, 09:10 PM   #1250
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R410A is Greener and more friendly to the environment and inverter compressor is quieter and having longer compressor life span than a non inverter unit.

i see the reason most people opt for R22 and non inverter is the higher cost of R410A and inverter.
if you got the extra budget just for R410A and inverter.



http://www.daikin.com.sg/svc_charges.asp

Daikin website got the charges of R22 and R410A
their price diff is not that ridiculously expensive.
Do you know the the efficiency of cooling capacity of R410 is somewhat lower than R22 and Compressor using R410 it need to use ether oil which absorb moisture much more faster than R22 therefore your system is more likely to breakdown in a sub standard technician. So you think 350% is not a ridiculously price?????, do you know how a dc compressor work when it kick in it is spinning in extreme high speed to speed up the cooling efficency therefore part inside of the comp tend to worn out much faster than non inveter comp which only spinning at max of 50hz our local supply and when run at high speed the temp inside the comp will be extreme high and when the ether oil is so easy to absorb moisture therefore oxidize then rust follow you need to pay for replacement.
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Old 19-04-2010, 09:20 PM   #1251
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Do you know the the efficiency of cooling capacity of R410 is somewhat lower than R22 and Compressor using R410 it need to use ether oil which absorb moisture much more faster than R22 therefore your system is more likely to breakdown in a sub standard technician. So you think 350% is not a ridiculously price?????, do you know how a dc compressor work when it kick in it is spinning in extreme high speed to speed up the cooling efficency therefore part inside of the comp tend to worn out much faster than non inveter comp which only spinning at max of 50hz our local supply and when run at high speed the temp inside the comp will be extreme high and when the ether oil is so easy to absorb moisture therefore oxidize then rust follow you need to pay for replacement.
provided compressor warranty is 5 years warranty. so shouldnt be a problem when it needs a replacement of compressor.

for mine, additional 1 year warranty from installer.

IMO, yup, r410 is more cold than r22, of cos anything u can say inverter is gd. but there is 1 thing u cannot do, which is the price different between a non-inverter n inverter.

of cos if got $$, than no problem to go for inverter.. if anything spoilt, got $$ also no problem. rite?

Last edited by chunlianghere; 19-04-2010 at 09:33 PM..
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Old 19-04-2010, 09:43 PM   #1252
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provided compressor warranty is 5 years warranty. so shouldnt be a problem when it needs a replacement of compressor.

for mine, additional 1 year warranty from installer.

IMO, yup, r410 is more cold than r22, of cos anything u can say inverter is gd. but there is 1 thing u cannot do, which is the price different between a non-inverter n inverter.

of cos if got $$, than no problem to go for inverter.. if anything spoilt, got $$ also no problem. rite?
Bro do you notice some manufacturer in the market promise of 5 yrs warranty of compessor but must replace by their own technician and then they charge you only the workmanship. Do you know the cost of the workmanship cost more or same when you give a third party contractor do the same job with a same brand new comp. I do not want to mention the brand of the Air-Con.
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Old 19-04-2010, 09:55 PM   #1253
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Do you know the the efficiency of cooling capacity of R410 is somewhat lower than R22 and Compressor using R410 it need to use ether oil which absorb moisture much more faster than R22 therefore your system is more likely to breakdown in a sub standard technician. So you think 350% is not a ridiculously price?????, do you know how a dc compressor work when it kick in it is spinning in extreme high speed to speed up the cooling efficency therefore part inside of the comp tend to worn out much faster than non inveter comp which only spinning at max of 50hz our local supply and when run at high speed the temp inside the comp will be extreme high and when the ether oil is so easy to absorb moisture therefore oxidize then rust follow you need to pay for replacement.
a sub standard technician will cause problem to a R22 non inverter aircon too, it not apply only to R410A inverter unit.
non inverter have the frequent start and stop problem, it also likely to cause the unit to have a shorter life span.
inverter aircon is not something new in the market. they had been in the market for years. if the reliability is an issue we should see mass failures and users complaining around. there inverter units running for years without problem.

like it or not R22 will be phase out and get replaced by R410A. R22 might be more expensive than R410A down the road once majority switch to R410A.
yes, for me i willing to fork out the extra 350% or $25 now for a greener environment and i dont see how often user will need a gas refill with a proper installation..
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Old 19-04-2010, 09:59 PM   #1254
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Talking

Does anyone know of a compressor (inverter unit) that is very quiet..

I stay in an old 3 room HDB flat and the compressor is just outside my master bedroom. My neighbour downstair complained my compressor noisy
mitsubishi electric inverter aircon FTW..........

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Old 19-04-2010, 10:00 PM   #1255
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Bro do you notice some manufacturer in the market promise of 5 yrs warranty of compessor but must replace by their own technician and then they charge you only the workmanship. Do you know the cost of the workmanship cost more or same when you give a third party contractor do the same job with a same brand new comp. I do not want to mention the brand of the Air-Con.
the same warranty policy apply to their non inverter unit rite? in the event their non inverter compressor fail, user still need to pay the workmanship for non inverter compressor replacement?
so this issue become a brand issue and not an inverter vs non inverter issue any more?
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Old 19-04-2010, 10:07 PM   #1256
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let put prices aside.
just purely base on spec and performance to make a selection.
non-inverter, inverter, R22, R410A all same prices.
how many people will still opt for the R22 + non inverter combo?
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Old 19-04-2010, 10:11 PM   #1257
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a sub standard technician will cause problem to a R22 non inverter aircon too, it not apply only to R410A inverter unit.
non inverter have the frequent start and stop problem, it also likely to cause the unit to have a shorter life span.
inverter aircon is not something new in the market. they had been in the market for years. if the reliability is an issue we should see mass failures and users complaining around. there inverter units running for years without problem.

like it or not R22 will be phase out and get replaced by R410A. R22 might be more expensive than R410A down the road once majority switch to R410A.
yes, for me i willing to fork out the extra 350% or $25 now for a greener environment and i dont see how often user will need a gas refill with a proper installation..
FYI R22 will stop production in year 2020 where now plant in china and south america is piling up the R22 stock conservative say it can last another ten year therefore by 2030 then maybe R22 will totally phase out.
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Old 19-04-2010, 10:17 PM   #1258
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the same warranty policy apply to their non inverter unit rite? in the event their non inverter compressor fail, user still need to pay the workmanship for non inverter compressor replacement?
so this issue become a brand issue and not an inverter vs non inverter issue any more?
Yes, but non inverter comp is so much easiler to replace i no need to go back to the manufacturer there is so many on the shelve to choose. You cannot simply get any off the shelve inverter comp to replace as each design is not the same and it may not work with their DC control card.
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Old 19-04-2010, 10:18 PM   #1259
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Hi everybody seem like going for inverter? OK inverter is the latest trend now, but think twice before you decide on inveter unless you using your air-con more than 8 hrs a day then you can see significant saving in energy consumption. Other than that do all you know the gas R410 is expensive to replace everytime if need to servicing all gas should throw away and replace with new expensive gas, wheresle R22 is dirt cheap and no need to throw all away when servicing as this gas does not breakdown when there is a leak like R410. Do you know how much to replace a DC control card or the compressor in the inverter system if it breakdown, much more expensive with the existing non-inveter type of air-con parts and compressor. OK next insulation i notice there is a lot of mention of upgrading of copper pipe and insulation, wow if the salemen tell me to upgrade from 3/8' to 1/2' insulation then i will ask him is it i upgrade to 1/2' he can make sure that my trunking do not sweating wait long long. As for copper pipe all depend on the workmenship and attitude of the installer, if he is those type bo-chap type you upgrade to 1' thick also useless. As brand go for the more reliable brand like panasonic, sanyo and dakin, there make their own compressor so there can design to suit for their own use. Wheresle alot of the other brand there just buy off the shelve to assemble into their unit. Worst some oem without spending a single cent in R&D, so how to justify it performance and efficiency. Hope this help guy and gal here decide what is your need
i think ur comments are purely constraint by ur budget, that's why no way for u to agree that u will agree inverter air-con is good, becos u simply cannot afford.........

Inverter Advantages Compared to Non-Inverter


Energy saving

After the indoor temperature approaches the set temperature, Inverter Control adjusts to low capacity operation to maintain this temperature. This makes inverter models more energy-saving than non-inverter models, which must repeatedly start or stop their compressors to maintain the room temperature.
Powerful

Inverter air conditioners operate at maximum capacity as soon as they start up. As a result, the set temperature can be reached more quickly.
Comfortable

Inverter air conditioners finely adjust capacity according to changes in the air-conditioning load and the difference between the indoor temperature and set temperature is small. These give higher comfort levels than with non-inverter air conditioners.



u have not considered that the huge raises of electricity bill in sg.....in 2-3 years times u cannot imagine how much the electricity bill will increase, u must take note sg electricity tariff revised quarterly......meaning max can increase 4 times per year.......

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Old 19-04-2010, 10:19 PM   #1260
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the main issue with R22 are not the cost and supply. it is their Ozone depletion problem.
if we able have a choice to adapt a more friendly gas why dont we just go for it earlier?
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