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Air conditioning - Any recommendations please??

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Old 26-05-2009, 12:14 AM   #286
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Ma56ev16, u 0n 3 x 9k btu fcu @ the same time, its also powerful enough to cool the 3 rooms down. So no worries.
yeah..u're rite. actually for bedroom, 9000btu is more than enough. so if u were on 3 at the same time, each 6755btu. which is the correct btu for bedroom.
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Old 26-05-2009, 09:31 AM   #287
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hi guys.. i am done with my shiftings and i am very happy with the results. i managed to shift both my computer and bed just directly opp the aircon .. and it seems tat i managed to contain the cold air ard my bed area as i notice that the area behind the wardrobe is slightly warmer which is alright for me.. my setting is, temp to 28degree and fan speed at 3bar and it will be cold throughout the nite.. woO~
wa sia... you really used the wardrobe to 'partition' the room to contain the coldness arh?

i dunno what's the size of your room but at 8000k BTU (should be enough for a bedrm bah), i dunno if that's really necessary.

How about the are behind the wardrobe? wouldn't it be wasted and the room becoming smaller?
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Old 26-05-2009, 09:40 AM   #288
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but from wat i tink, after a few hours, behind wardrobe wil eventually get cold.
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Old 26-05-2009, 09:56 AM   #289
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but from wat i tink, after a few hours, behind wardrobe wil eventually get cold.
wahahaha... you know what? You're right, most definitely!

i suppose the wardrobe 'partition' probably help to 'concentrate' the coldness directly at the bed during start up. How much is everybody's guess. Would it have made a significant difference? Who knows?
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Old 26-05-2009, 09:57 AM   #290
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How long does the piping actually last? My aircon recently broke down and I am changing a new set but I am thinking of not changing the pipings since mine is concealed. Would that be a problem? The piping should be around 7 years old.
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Old 26-05-2009, 10:05 AM   #291
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How long does the piping actually last? My aircon recently broke down and I am changing a new set but I am thinking of not changing the pipings since mine is concealed. Would that be a problem? The piping should be around 7 years old.
i dun know the answer to your question but i do know this... that if you were using the old R22 refridgerant before then you should only use R22 back. Almost all non-inverter uses R22, a few inverter system also uses R22.

If your new system is inverter, then high chance it is using the new R410a refridgerant. In that case, there may be a problem.

Also, the new R410a has a higher working pressure than the old R22. Thus R410a needs thicker Cu pipes (not larger, but thicker Cu wall). So chances are the R22 refridgerant would be using Cu pipes that may not withstand the higher pressured R410a, this leads to periodic topping up of gas due to leaks.
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Old 26-05-2009, 10:15 AM   #292
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How long does the piping actually last? My aircon recently broke down and I am changing a new set but I am thinking of not changing the pipings since mine is concealed. Would that be a problem? The piping should be around 7 years old.
Don't fix what ain't broken

Especially since the pipes are concealed.
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Old 26-05-2009, 10:27 AM   #293
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Anyone who wants to know more about the insulation, piping etc can refer to this http://singapore-aircon.blogspot.com/
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Old 26-05-2009, 11:25 AM   #294
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actually is recommeded to change the piping to new one. but since u dont wan to change, than u hav to use back new aircon wit R22 refrigerant. as R410A hav 2 times higher pressure.
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Old 26-05-2009, 01:01 PM   #295
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wa sia... you really used the wardrobe to 'partition' the room to contain the coldness arh?

i dunno what's the size of your room but at 8000k BTU (should be enough for a bedrm bah), i dunno if that's really necessary.

How about the are behind the wardrobe? wouldn't it be wasted and the room becoming smaller?
that floor plan is not drawn to scale.. jus arga arga draw one.
currently using the room alone so dun have "not enough space" issue. no space was wasted =), cos i place all my barang barang, army stuff etcs behind dere too.. it feels like my room is slowly becoming a storeroom lo.. sigh.. -_-

i personally quite like the changes la.. cos staying in that HDB since birth.. so many years le den the arrangement of the furniture didn't change much.. it feels great to decorate and design yr own room, gives me a sense of accomplishment.. ok.. this one maybe i tink too much.. lOlx..

yes behind the wardrobe gets cooler as time goes by but not cold. my body did notice some diff in temp.. duno if it is becos of the windows over there. cos my windows aren't customized for aircons and the cold air might escape through dere.. it is those old type one..
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Old 26-05-2009, 06:17 PM   #296
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Just go quote toshiba sys 4 inverter from GC at $3697, Mitsubish $3750,

which all included already, copper 22, armaflex insulation 1/2, 16mm drainage pipe, stainless steel

bracket, power point, old aircon dismantle.

If extend warranty, 439 apply.

Hi guys, is this price fair enuff? heard from you soon, need to get order by this Thursday, very hot recently, my old aircon can not serve me liao.
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Old 26-05-2009, 08:00 PM   #297
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Hi all,

went to hong tar and best tech for mitsubishi electric aircon

Shop 1, Hong Tar
a) Brand, model and thickness of the insulation.
thermoflex, class 0, 1/2 inch thick.
b) Brand and thickness of the copper pipe.
gauge 23
c) Installation warranty period where labour, transportation and parts
are inclusive.
1 Year warranty for parts and workmanship, compressor got 5 years warranty.
d) Brand and model of the air conditioner.
Mitsubishi Electric, MXY4A28 / MSXYGA10(3units) / MSXY6A26 (9K+9K+9K+26K)
e) Price quoted.
$4070
f) Any other services they are providing or you have requested.
dismantling of 3 old window units, they insist to take the old
air-cons with them.

Shop 2, BestTech
a) Brand, model and thickness of the insulation.
K-flex, class 1, 3/8 inch thick.
b) Brand and thickness of the copper pipe.
gauge 23
c) Installation warranty period where labour, transportation and parts
are inclusive.
1 Year warranty for parts and workmanship, compressor got 5 years
warranty, plus $160 bucks servicing voucher.
d) Brand and model of the air conditioner.
Mitsubishi Electric, MXY4A28 (9K+9K+9K+18K)
e) Price quoted.
$3947
f) Any other services they are providing or you have requested.
dismantling of 3 old window units, they did not insist to take the old
air-cons with them.

which would be a better bet? both refuse to change any specs of thier installation. I live in bukit batok street 21, 4-room A. Please advice as i am quite clueless.

Thanks in Advance!
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Old 26-05-2009, 09:30 PM   #298
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Hi all,

went to hong tar and best tech for mitsubishi electric aircon

Shop 1, Hong Tar
a) Brand, model and thickness of the insulation.
thermoflex, class 0, 1/2 inch thick.
b) Brand and thickness of the copper pipe.
gauge 23
c) Installation warranty period where labour, transportation and parts
are inclusive.
1 Year warranty for parts and workmanship, compressor got 5 years warranty.
d) Brand and model of the air conditioner.
Mitsubishi Electric, MXY4A28 / MSXYGA10(3units) / MSXY6A26 (9K+9K+9K+26K)
e) Price quoted.
$4070
f) Any other services they are providing or you have requested.
dismantling of 3 old window units, they insist to take the old
air-cons with them.

Shop 2, BestTech
a) Brand, model and thickness of the insulation.
K-flex, class 1, 3/8 inch thick.
b) Brand and thickness of the copper pipe.
gauge 23
c) Installation warranty period where labour, transportation and parts
are inclusive.
1 Year warranty for parts and workmanship, compressor got 5 years
warranty, plus $160 bucks servicing voucher.
d) Brand and model of the air conditioner.
Mitsubishi Electric, MXY4A28 (9K+9K+9K+18K)
e) Price quoted.
$3947
f) Any other services they are providing or you have requested.
dismantling of 3 old window units, they did not insist to take the old
air-cons with them.

which would be a better bet? both refuse to change any specs of thier installation. I live in bukit batok street 21, 4-room A. Please advice as i am quite clueless.

Thanks in Advance!
Try Natural Cool.
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Old 26-05-2009, 11:02 PM   #299
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Try Natural Cool.
wat is that? a shop? or a kind of air con?
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Old 26-05-2009, 11:16 PM   #300
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wat is that? a shop? or a kind of air con?
is a company ba... as u search natural cool in google or yahoo.
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