Air conditioning - Any recommendations please?? - Part 2

durkheimian

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Hi bro, thank you

1) so it ok to switch if "OFF"(SEEM IT NOW SERVE NO PURPOSE)

2)You can test to find out from your main switch by switching off individual 20A or 32A MCB switch.

This test for what Purpose?


3) which better connect to isolator or 15 amp switch only( as might as my installer to rewired if it make a difference in long run)


thank again for the input ,appreciated

the isolator is supposed to serve a purpose, i.e. to isolate the power to the equipment when doing maintenance. when technicians do servicing of the ac, it is safer to isolate the power to the entire ac system as there will be spraying of water, opening of cover, etc. although you are probably not going to service the ac yourself, i'm sure it is in your interest that no mishap happens during servicing of ac.

cis2910 has answered your queries on why you need to know which breaker is controlling the power to the ac. so based on the para above, your breaker is sort of performing the role of the isolator. but in practice, it is located far from the cu itself. and it is actually not appropriate to use a breaker like an on/off switch.

you can isolate a 15amp supply with a 20amp isolator, but if your mcb is rated 20amps, you should be using at least a 20amp isolator as you might fry the conductor at the 15amp plug/socket.

back to your query on why your ac is still working when the isolator is in "off" position. it could be, as other forumer mentioned, that your ac is not wired via that isolator (for BTO, there's another 20amp heater point termination at the bathroom that the installer could have connected to). or in an extremely extremely extremely rare situation, the 'live' conductor is wired via the earth link, so switching off has no effect, and the installer should be shot if he does that.
 
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Xiuqing87

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How come your capacity is 29? I ordered the same compressor too. The sales person told me its 24 so once i turn on my living room air con (24k) i cannot on my room already. Either one of us is wrong haha

Update: sms my sales person, she say its 24k for this compressor

I have no idea...lol..i just called the sales person at gain city to reconfirm about the capacity and they said is 29. I also checked the LG website link unless my understanding is wrong...oops...lol
 

kaysee

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I have no idea...lol..i just called the sales person at gain city to reconfirm about the capacity and they said is 29. I also checked the LG website link unless my understanding is wrong...oops...lol

LOL. The compressor is 24k. Next level is 30 which is the very old one going to discontinue soon. Anyway i called and double check w my sales person. She said its 24k confirm. So who is right sia? Lol mine gain city amk outlet. The serial number u gave me is exactly the one in my invoice.

The website says its rated 24k but max 29k that one isit? But what does it actually mean?
 
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coldish

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Looks like LG is in vogue these few days. In fact I like the coolness of LG aircons experienced in the near by 7-11 store commercial aircon with large FCU. Very cooling.

Yea. I am looking for aircons but see many seems to go for mainstream brands like Mitsubishi so I am looking for otherr options.
So happened to see LG artcool and health plus series caught my eye. Any bros tested em?
 

xiangzeng

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Yea. I am looking for aircons but see many seems to go for mainstream brands like Mitsubishi so I am looking for otherr options.
So happened to see LG artcool and health plus series caught my eye. Any bros tested em?
Neh, your party should have at least one in the building, right or not? check it out.
 

bovi77

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Haha, I haven really tested it out now cos just installed today. Mine is the really old HDB where the dining area is in the kitchen. Will update again once I tested it out.

would greatly appreciate knowing how well your 24k unit cools the living areas. is your dining & tv area all in 1 square/rectangle or slightly offset? floor plan with location of aircon would be so helpful

thanks
 

nakitaro

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would greatly appreciate knowing how well your 24k unit cools the living areas. is your dining & tv area all in 1 square/rectangle or slightly offset? floor plan with location of aircon would be so helpful

thanks

rectangle. not as much cooler as when directly under unit or in front.
 

wwh5210

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Did my aircon upgrade with Cold Engine again on Wed after installing Daikin system 2 with them a year ago. Their engineer and technician were quite friendly and professional as far as I can tell lol. Although it was an upgrade from system 2 to system 3 but their engineer redo the whole trucking and piping in order to prevent "jelly" in the drainage pipe. I am pretty happy with their service and their quotation was pretty reasonable.

BTW, their technician told me Daikin and Mitsubishi are very popular and reliable for their aircons.
 

OwlJowl

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Got a question for ya'll. If 24000 BTUs ~ 7Kw, and 7Kw ~ 29Amps, how does one go about installing a unit of that size if we're limited to 40 Amps for the the whole flat. Also if the outdoor compressor is rated at 36000 BTUs how does that get installed as that works out to 43 Amps.

What am I missing here?

Cheers.
 

iichigoz

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would greatly appreciate knowing how well your 24k unit cools the living areas. is your dining & tv area all in 1 square/rectangle or slightly offset? floor plan with location of aircon would be so helpful

thanks

Oh I haven shifted in yet but going to test out soon.

Will try to take a picture and post it up later. Cheers!
 

turboo

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Anyone knows when the new starmex 5 ticks will be launched? Otherwise is LG artcool a good alternative?
 

Airconreplacement

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I am looking for replacing all the 6 aircon using existing pilping - have been given the below quotations by contractor of my id - any comments whether is it reasonable ?

MItsubishi Electric inverter

MUY GE13
MSY GE13

MXY 3A28
MSY GE18 x 1
MSY GE10 x 1

MXY 3A28
MSY GE13 x 1
MSY GE10 x 2

Used back pipeline $6600
New pipeline $8400
 

xiangzeng

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Buy LG air con better to buy a fan.......Korea air con many problem .
I asked a salesman of the aircon company many years ago of LG aircons. He said the circuit boards of aircons always give users many problems. Don't know if this is still valid statement as of now.

Thinking of buying standing electric fans, I recommend ME brand for its reliable continuous operation 24/7. Brand new at $125 only. Used them to support aircons now.
 

xiangzeng

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Got a question for ya'll. If 24000 BTUs ~ 7Kw, and 7Kw ~ 29Amps, how does one go about installing a unit of that size if we're limited to 40 Amps for the the whole flat. Also if the outdoor compressor is rated at 36000 BTUs how does that get installed as that works out to 43 Amps.

What am I missing here?

Cheers.
Curious to know what is the brand name of the aircons.

I read many specifications of aircons for HDB and mostly the amperes in use max out below 20 amperes. Look at the specs again to see if you refer the numbers correctly. Not possible to get 43 amperes unless you are living in private estate where power supply is 3 phases 400V.
 

jtwone

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Hi, I'm on an urgent look out for system 2 for my 3-rm. I'm seeing Mitsubishi or Daikin as the recommended brands here. Can anyone give me some opinions on which model I should get?

Also, any aircon shops I can go to for better deals? Or should I head to Gain City? Pls advise thanks!!
 

GBC

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I am looking for replacing all the 6 aircon using existing pilping - have been given the below quotations by contractor of my id - any comments whether is it reasonable ?

MItsubishi Electric inverter

MUY GE13
MSY GE13

MXY 3A28
MSY GE18 x 1
MSY GE10 x 1

MXY 3A28
MSY GE13 x 1
MSY GE10 x 2

Used back pipeline $6600
New pipeline $8400

You never mention which contractor is doing your aircon installation as there are some contractors to avoid ? Cheap and good don't go together.

You should get another 2 reputable aircon companies to quote and compare the price. It's always good to change new insulation and piping.
 
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damahome8084

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Hi all, I'm looking at aircon also. Going to move house and wanted to install 2 sets of system 3 for my EM, but when I was at Gain City, the sales person told me my estate does not have the high power to support. So I can only install 1 system. So he recommended Toshiba system 5. Any reviews on that? He told me Toshiba system 4 is made in Japan but system 5 is made in Thailand. Will that mean the quality is more inferior?
 
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