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Air conditioning - Any recommendations please??

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Old 20-02-2016, 12:50 PM   #6826
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Questions for all. Just installed a ME MXY4A28. The installer told me that they do not charge up refigerant after installation as the refigerant is already pre-stored at the condenser unit. Is this true?
The air coming out from the fcu does not seem to be cold even after setting 18degC and running it for 1 hour. Is this normal for a new unit? Thanks in advance.
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Old 20-02-2016, 12:53 PM   #6827
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This is an obsolete system running on R22. The shop who sold you this should be crucified, as R22 systems are not permitted to be sold in Singapore. Care to share who this irresponsible shop is?

Location of temperature sensor, as well as tolerance of the sensor plays a part. But what is important is the final temperature that you get out of the AC, and the power consumed. As an old model an non-inverter version, maybe cheap to buy out front, but high running cost. This applies to any other brands. Good luck.
There's nothing wrong with MA56EV1,an old tried and tested and reliable system. Sad to see them being phased out. My current place using MA56EV1 and Midea inverter. The daikin still more reliable and colder than the cheap inverter system. If you don't have the budget to go for an established brand inverter system or are not a heavy user, MA56EV1 still a good choice. Also many houses still have R22 pipes so MA56EV1 is their only choice. As for R22 phase out, R22 still widely available today and alternative gases such as R422D are available to replace R22 so there's nothing to worry about except bad installation when it comes to this system.
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Old 20-02-2016, 01:30 PM   #6828
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My installer did not vacuum the lines or check for leakage also. They do not even bring the gauges. They just release the valves and charge up the system.
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Old 21-02-2016, 12:10 PM   #6829
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York mostly do commercial unit. Those huge compressor install on the roof.
Most smokers will know. lol becoz smoke on the roof too often.
How is your York unit now?

Now York price for system 4 is very competitive.

I am looking for MHI or York.
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Old 21-02-2016, 04:09 PM   #6830
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Questions for all. Just installed a ME MXY4A28. The installer told me that they do not charge up refigerant after installation as the refigerant is already pre-stored at the condenser unit. Is this true?
The air coming out from the fcu does not seem to be cold even after setting 18degC and running it for 1 hour. Is this normal for a new unit? Thanks in advance.
Update.
The installer came back and found one of the fittings leaking. Did a refrigerant charge up and now fcu gives out cool air. Will monitor for awhile.
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Old 23-02-2016, 12:55 AM   #6831
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Hello guys, I am planning to get a Toshiba Sys4, any comments if this is a good choice. Because my current Mit Starmex CU having problem, according to tech, it says Fan motor spoilt, but still can't confirm if really motor spoilt or Board failure. Thanks in advance!
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Old 23-02-2016, 01:34 AM   #6832
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From their catalogue, MXY4A28 got total capacity of 7.5kw without current limit and 7.2kw with.
MXY4G28 posted 6.5kw with no elaboration on current limit. Go convert kW to btu and figure.
Is this catalogue online by any chance? When i loked at the coolserve site it showed both with 33066 btu/hr but that's a 3rd party so ...
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Old 23-02-2016, 07:53 AM   #6833
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Replaced with Mitsubishi Starmex Inverter system from existing Daikin non-Inverter System, purchased the 2 tick older system, house was a mess... took an entire working day started at 10:00am and ended at 6:00pm.

System is really quiet which is what my main criteria is, had to removed small portion of false ceiling and replaced everything, wiring, piping (copper and pvc), mounted bracket, wood panel, new sealing everything.

Very tired though but very happy that it went well and all done in one day.. will monitor.
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Old 23-02-2016, 08:29 AM   #6834
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Replaced with Mitsubishi Starmex Inverter system from existing Daikin non-Inverter System, purchased the 2 tick older system, house was a mess... took an entire working day started at 10:00am and ended at 6:00pm.

System is really quiet which is what my main criteria is, had to removed small portion of false ceiling and replaced everything, wiring, piping (copper and pvc), mounted bracket, wood panel, new sealing everything.

Very tired though but very happy that it went well and all done in one day.. will monitor.
How many system and how much total cost
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Old 23-02-2016, 09:41 AM   #6835
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Hello all.. i have looked through some pages of this thread and have some queries that will help in my decision making. I apologise if this question is repeated or too noob.

I have a 5rm bto and i am considering the pros and cons between a system 4 and system 2+3. Apart from the price, what are the pros and cons for each?

Seems like the post on compressor range between 28k to 30k. Is there an ideal size?

Am i right to say each room i should look at 9kbtu while for living room(if i take system 4) will be bigger e.g. 18k-24k? Whats the ideal spilt for living room and rooms for a 5room if its system 4?

I saw B** T** over the weekend and their prices are competitives but also read a few old bad revoews on them. They have this special pipes for the wires and the guy recommended LG.

What are the usual recommended brands for aircon that is cost saving in the long run (easy maintenance, energy saving)

Our aircon usage we believe will be a few hours for 1/2 bedrooms at night, occasional gathering on weekends so living will be on. On hot weathers maybe on living room for a few hours. Does the 2 ticks or 4 ticks make a difference? I understand it does if you are a heavy user.

Thanks in advance for your time! Much appreciated
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Old 23-02-2016, 10:16 AM   #6836
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To sharkles,

You can go with Starmex or Daikin.
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Old 23-02-2016, 10:17 AM   #6837
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To teck13,

The installers should do a vacuum before charging up the system.
Releasing gas into the gas into the system straight after installing will lead to air and other objects being thrown into the gas system and shortening the life of the system.
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Old 23-02-2016, 03:31 PM   #6838
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Thanks for that! Seems like more votes are for Starmex vs other brands.
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Old 24-02-2016, 03:13 PM   #6839
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Why I ask qns for over 2 weeks, nobody reply. I'm so sad. Just like to find a good aircon installation company to install 2 aircon for 2 bedrooms, anyone have any suggestions?

For online I found Jex Aircon and Cool World Aircon, anyone use their services b4, care to share? I saw good and bad reviews for gain city so I think its heng suay one.

Aircon I'm looking at:

Starmex(5 ticks)
MXY2G20VA
MSXY-FJ10VE x 2(9000)
Hi there! We just recently engaged Jex to install sys 4 for our new BTO. My hubs was the main person dealing with them, he chose them because they offered a very good price but above all, he was very detailed and patient explaining the details to my husband from the start. During the installation two guys in their 30s showed up, realised they are a 2nd generation family business and they were pretty helpful and willing to spend some time to share with us the pros and cons of the sites we wanted to install our Aircon units. They seemed pretty reliable and work was nicely done within the day. Only complain from my ID was that they didn't clean up properly before they left.. Which I felt was a small issue, just need to remind them on the day of installation. There is a warranty period for installation work done (can't remember how long but min. 1 year) and 5 years for the compressor.

Whether I would recommend them, I can't say until a year later? Cos some issues might only start showing up then? Also need to test out their after sales service before I feel comfortable recommending.

Last edited by LittleMissRedDot; 24-02-2016 at 03:16 PM..
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Old 24-02-2016, 08:57 PM   #6840
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I'm quoted by an a/c vendor the following for Starmex system 3 (9000 x 2 + 12000) btu

Option 1 - MXY-3A28VA (2-ticks), price $3150
Option 2 - MXY-3G28VA (5-ticks), price $3850

What's the differences between MXY-FJ10VA and MXY-FJ10VE?

Worth topping up another $700 for a more energy saving model?

Last edited by icekachang72; 24-02-2016 at 10:34 PM..
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