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Air conditioning - Any recommendations please??

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Old 21-02-2017, 06:55 PM   #9346
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My config for 4rm BTO, 2 x 9k for 2 common bedroom, 1 x 13btu for 1 MBR, 1 x 24btu for living room etc. 320sqf for living/dining, 170sqf for MBR, 115sqf for common bedroom. So BTU/sqf are about the same for all, my logic.
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Old 21-02-2017, 07:38 PM   #9347
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150 sq ft requires around 7.5k btu.
When all 3 all on, the individual fcu BTU will auto decrease.
Whats the sq ft of the other 2 rooms?
Master bed room - 173 sqft

Bedroom 2 - 165 sqft

Bedroom 3 - 150 sqft

Shd I get the 3mks71fsg instead?
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Old 21-02-2017, 08:32 PM   #9348
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Any comments on Aircon 101? Planning to engage them to install my aircon
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Old 21-02-2017, 09:18 PM   #9349
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If you use all three rooms at the same time usually, get 3mks71fsg will be better.


Master bed room - 173 sqft

Bedroom 2 - 165 sqft

Bedroom 3 - 150 sqft

Shd I get the 3mks71fsg instead?
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Old 23-02-2017, 10:53 AM   #9350
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Found another contractor who came and installed the FCU above the room entrance with proper insulation done..
Can you PM the contractor info to me? I intend to change my home air-cond as well. Thanks.
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Old 23-02-2017, 09:53 PM   #9351
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mitsubishi still best...
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Old 24-02-2017, 05:56 AM   #9352
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I just done my aircon works. here is something i can share with you:

the minimum standard of copper pipe is G23, normally upgrade to G22 is good enough I think. my husband said no point to use even more thicker copper pipe if the installer didn't do well. for my new house design, almost all trunking are hide inside cabinet and ceiling. so we decide to use G22 and 1/2" thickness Armaflex to minimize the future problems.

as my aircon contractor told me, there's different Class for Armaflex. and she show me the difference when they come down for site check.

if you decided go with 1/2" armaflex, just get Class 0 grade, and make sure the installers do the proper work. i saw some of my neighbour piping, works been short cut by installers, didn't give what they have promise at first.
How do I make sure the installer will do a good job? Has anyone's aircon been installed by Vision Air or NAT Aire Builder (aka DIY Appliances) before? Or do you guys have any other recommendations?
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Old 25-02-2017, 02:36 AM   #9353
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Hi All,

I am seeking help from aircon experts here as I am out of ideas already. I am having problems with my 6 years MHI aircon.

All 3 fancoils shut down together after 1-2 hours. Error light blinking. Switch it on again and it switches off again after 1-2 hours. Keeps repeating.

Is it the fuse or fan or motor or pcb?

Any suggestions from anyone? Any clues to the problem, please? Thanks!!!
I have a MHI aircon too. It is nearly 7 years now. You can see the codes here:

http://acerrorcode.com/mitsubishi-he...ror-codes.html
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Old 25-02-2017, 10:27 PM   #9354
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I'm looking ard for air con to replace current system.

9k + 18k BTU. was quoted by Gain City, $2300+. MIT starmex. Compressor is system 3 compressor.

Cheap?

Gain City gave the best quote, comparing to other companies like All Best, Best Tech, Courts, Best Denki.

Gain City promise to use good material like 1/2 armaflex, made in Singapore wire, etc.

Any other companies to recommend?
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Old 25-02-2017, 11:07 PM   #9355
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I'm looking ard for air con to replace current system.

9k + 18k BTU. was quoted by Gain City, $2300+. MIT starmex. Compressor is system 3 compressor.

Cheap?

Gain City gave the best quote, comparing to other companies like All Best, Best Tech, Courts, Best Denki.

Gain City promise to use good material like 1/2 armaflex, made in Singapore wire, etc.

Any other companies to recommend?
Try Cold Engine. They have good price for Starmex.
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Old 25-02-2017, 11:19 PM   #9356
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Any feedback on Midea air conditioning system?
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Old 27-02-2017, 04:02 AM   #9357
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Hi,

My home already have starmex invertor unit installed, and I have problem with my compressor. Now I intend to replace the current units, 3x9 + 1x18.

I rarely use the 1x18 but I intend to connect it with the new compressor. Can I get the MXY3A28VA and connect the old 1x18 and 3x9 with it? Not sure if this is possible with the new compressor. Hope to hear some insights. Thanks in advance!
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Old 27-02-2017, 12:06 PM   #9358
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I'm looking ard for air con to replace current system.

9k + 18k BTU. was quoted by Gain City, $2300+. MIT starmex. Compressor is system 3 compressor.

Cheap?

Gain City gave the best quote, comparing to other companies like All Best, Best Tech, Courts, Best Denki.

Gain City promise to use good material like 1/2 armaflex, made in Singapore wire, etc.

Any other companies to recommend?
Tried Newway? I was recommended to them previously and have been using them for a couple of years now.

They installed my new MHI Sys 3 and so far everything is working perfectly. Did up a few maintenance session with them as well.

Responsible service with quality workmanship. Not too sure if they are the cheapest though. U can try asking.
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Old 27-02-2017, 01:56 PM   #9359
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Yes, You should be able to use back your existing fancoil units.
The outdoor model should be MXY-4A28VA.

Hi,

My home already have starmex invertor unit installed, and I have problem with my compressor. Now I intend to replace the current units, 3x9 + 1x18.

I rarely use the 1x18 but I intend to connect it with the new compressor. Can I get the MXY3A28VA and connect the old 1x18 and 3x9 with it? Not sure if this is possible with the new compressor. Hope to hear some insights. Thanks in advance!
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Old 27-02-2017, 01:59 PM   #9360
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Your $2300+ quote is with new piping or using back existing?

I'm looking ard for air con to replace current system.

9k + 18k BTU. was quoted by Gain City, $2300+. MIT starmex. Compressor is system 3 compressor.

Cheap?

Gain City gave the best quote, comparing to other companies like All Best, Best Tech, Courts, Best Denki.

Gain City promise to use good material like 1/2 armaflex, made in Singapore wire, etc.

Any other companies to recommend?
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