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Air conditioning - Any recommendations please??

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Old 03-03-2013, 09:08 AM   #3256
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Hi Terumo Guru..

i am thinking of changing my air con cause it has been with me for close to 10 years..
want to retire it already..

i changed the trunking like 6 years ago..

i am looking to install for 3 bedroom units..
and one hall.. which is about the size of about 2.5 times the size of a bedroom..

any recommendations for aircon?..
and do i have to do the trunking again?..
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Old 03-03-2013, 12:29 PM   #3257
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hi, what would you guys choose between mitsubishi electric and mitsubishi heavy industries?
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Old 03-03-2013, 01:49 PM   #3258
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Cool

@ xaHshenGx

All brand of air-conditioning systems nowadays are just abt the same.... Their lifespan are abt 5-7 years... regular maintenance is really important to know ur air con unit's performance and electrical consumption.
Personally, i've been using Mitsubishi Electric for 7 years plus... everything seem ok....
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Old 04-03-2013, 12:41 AM   #3259
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to yan4yan4,
I think u r referring to the drain pan or drip tray.
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Old 04-03-2013, 12:43 AM   #3260
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To k3ong5,

U replaced all ur piping 6 yrs ago together with all the wiring & trunking? or trunking alone?
I think ur living room requires min 12k or 18k btu.
Whats the square area?

Last edited by terumo; 04-03-2013 at 12:50 AM.. Reason: Typo
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Old 04-03-2013, 12:45 AM   #3261
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The_King,

I suggest 1 aircon unit to 1 isolater.
This is to prevent the isolater from tripping if both outdoor units are running and the wiring might get too hot due to high current drawn.
Safety reasons here.

For the heater issue, i duh think the models in Sg have this function.
Standby power is very min, i think you do not need to worry abt the consumption for the standby power.

Last edited by terumo; 04-03-2013 at 12:51 AM..
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Old 04-03-2013, 12:47 AM   #3262
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to happykapy,

I suggest a invertor 9k for your bedroom which is used daily and a non inverter sys 3 for ur hall and the 2 bedrooms which is seldom being used.
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Old 04-03-2013, 12:49 AM   #3263
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to kleric,

This setup u mentioned.
If u on one unit, the Ftkd35 will perform like a 12k btu fcu.

If you on both @ the same time, they will perform like a 9k btu fcu.
Similar to Ftkd25.
No issue to undersize it as u use one unit only most of the time.

Pricing wise, you can consider Mit Electric.
They have a 2e20 outdoor unit. You can couple with Ge13.
More value for $, just my views...
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Old 04-03-2013, 04:30 PM   #3264
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aircon recommendation

Hi Mr Terumo

Can you recommend a system 4 for my flat, usage is about 8 hours from night till morning everyday

MBR - 2 persons
Common room 1 - 2 persons
Common room 2 - 2 persons
Study room (used as bedroom)- 1 person

I am worried that the 27k-28k btu compressors are not enough to cool the rooms, the switching on of the aircons are not at the same time though. thanks
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Old 04-03-2013, 07:52 PM   #3265
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to zer08ight,

Average hdb bedrooms requires ard 6-7k btu.
so 27k btu compressor should serve you well.

27k compressor, u on all 4 fcu. Each fcu ~ 6.5k btu. Still ok.

If you require ur room to be very cold like 20-22 degrees, u can consider the 36k btu compressor option to be safe.
If 36k btu, u on all 4 fcu, they still have 9k btu worth of cooling.
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Old 04-03-2013, 11:25 PM   #3266
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To k3ong5,

U replaced all ur piping 6 yrs ago together with all the wiring & trunking? or trunking alone?
I think ur living room requires min 12k or 18k btu.
Whats the square area?
hi Terumo..

if i am not wrong all wiring and trunking changed..

my living square area is around 44 sq meter..

got any recommendation?.. or do i have to change trunking and wiring again?
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Old 05-03-2013, 12:17 AM   #3267
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to happykapy,

I suggest a invertor 9k for your bedroom which is used daily and a non inverter sys 3 for ur hall and the 2 bedrooms which is seldom being used.
Thank you for your advice!

The aircon man trying to sell me Daikin, because he says it has special promo now.

However I checked the price, Mitsubitshi Electric is 1.3k cheaper for same setup.

Sys 2 - 18 / 12
Sys 2 - 9 / 9

What are your comments on Daikin vs M.E?
Any advice?
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Old 05-03-2013, 01:54 AM   #3268
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To happykapy,

If $1.3k difference, get ME.
More value for money.
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Old 05-03-2013, 01:55 AM   #3269
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to k3ong5,

If u seldom top up gas over the last 6 years, can consider using back the piping.

If they are exposed and can be changed, if price difference not a lot, then u change will be better.

44 sq meter, u require a 24k btu fancoil to cool it down.
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Old 05-03-2013, 11:10 PM   #3270
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Hi,

Thinking of getting a new aircon for my 4rm HDB. Been using the old National ones for years and years, they've been leaking and all for about 4 years now and I finally buay tahan liao, got my parents on board to change.

Thinking of getting a ME Sys 3 Inverter, the MXY-3A28VA + 3 x MSY-GE10VA, for all 3 bedrooms. 1 room aircon is on about 10-12hr daily, MBR usage quite low, maybe once a week, the other room we plan to rent out so depends on the person renting it lor.

Q1) Do I need a replacement steel bracket?

Q2) What is the standard materials that most dealers offer, and what is the recommended material? Like 0.61mm copper pipe, 3/8 insulation, 16mm drainage pipe, etc.

Q3) What are some of the dealers that are consistently good in their worksmanship? Don't mind paying a bit more. Other than the big ones like GC, courts, Best Denki, HN, Coolserve, etc, are there any smaller companies offering good worksmanship and aftersales service?

Tks for the help
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