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Air Con Recommendations

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stament    363
On 10 December 2016 at 3:58 PM, RPCVguy said:

Glad to read this - mine will be installed tomorrow - 12K BTU

 

Where did you buy it from out of interest and how much was it? I need to get one for a 30sq m room although that size will clearly be insufficient for me.

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RPCVguy    216
7 hours ago, stament said:

Where did you buy it from out of interest and how much was it? I need to get one for a 30sq m room although that size will clearly be insufficient for me.

I'm in a small town (though far bigger than when I moved here in 2007)
I looked at what the two local shops offered, asked installation questions - and met the installer before making an offer at either store. Best to work with what the local people KNOW how to work with - has been my mantra all along. So I bought from the local installer directly, got a discount instead of the "gift" options one of the 2 stores offered. Looking at his work, watching him step by step, I was very pleased with the installation.... for 21K THB installed.
Below is how I shared it with friends in another post.
InstallationOfAirConditioner.jpg

 

Unlike many installations I have seen, he saw and connected to the ground wiring we have in our home.

Edited by RPCVguy
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HeyNow    14
On 7/6/2016 at 8:23 PM, GOLDBUGGY said:

I have had 2 Mitsubishi AC Units for years now and never and problems. Quiet to. But I think I also bought them as I got the best price for them and they were cheap to start with. Cheap compared to the other that is.

We have a Panasonic and two Samsungs. The Samsungs have had all kinds of problems: creaking louvers, leaks caused by clogged drainage tubes and busted thermostats. The Panasonic has never once given us a single problem in 8 years. 

 

I've owned many Panasonic products and can't think of a single one that's ever been a disappointment. 

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xylophone    2,327
3 hours ago, HeyNow said:

The Samsungs have had all kinds of problems: creaking louvers, leaks caused by clogged drainage tubes

 

Same here with two Samsung units and now I get a rhythmic "whooshing noise" which can be annoying in the night (and yes, filters et al cleaned).........I have a suspicion that this is because the drain pipe is clogged (yet again) and the fan 'skims" of the top layer of water residing in the thing.

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Dante99    1,713
5 minutes ago, xylophone said:

 

Same here with two Samsung units and now I get a rhythmic "whooshing noise" which can be annoying in the night (and yes, filters et al cleaned).........I have a suspicion that this is because the drain pipe is clogged (yet again) and the fan 'skims" of the top layer of water residing in the thing.

Clean the drain  pipe with a piece of wire, easy to do.

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xylophone    2,327
1 hour ago, Dante99 said:

Clean the drain  pipe with a piece of wire, easy to do.

 

 Sure but have to take the front off and then flush it out........not something I should have to do every two months or so.

 

Then of course I've had to insert a plastic washer at the end of the vanes because of the squeaking/creaking noise. After after 2.5 yrs the outside unit has rust and drips water. Then there's.......

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Genericnic    1,031
On 7/7/2016 at 4:09 PM, KhonKaenKowboy said:

Your unit is too small or has a leak....now your compressor is nearly shot. 12K is enough for a good size bedroom but not a studio. 17K is a bit too much for my studio, but If I was west facing and/or top floor; it would barely be enough on the hottest days. Also, most don't know how to set the differential on their thermostats...some are .5-1.5..others are 1-3...the higher will prevent short cycling, but there can be a loss of comfort. The most obvious problem is if they don't turn on, next would be blowing warm air, and the next would be the compressor running all the time....often the most serious. You can "top off the gas," but you obviously have a leak (if it is low), and the compressor has already been damaged.

KKK,

 

The air con in the condo I live in has just died - compressor. I I have a question about the right BTU rating to choose.

 

The condo is about 38 sqm and is 3.85 m x 9. 86 m with a separate, enclosed toilet. It is on the 12th floor of a 14 floor building and is not on an end. The windows are north facing so I don't get much direct sun even in the hot season. I have tried 5 or 6 of the online BTU calculators and they generally agree that after adjustments for things like sunny side, etc. a BTU rating of about 12000-14,000. In talking to repairmen and salesmen, they generally are talking about 18,000. Quite a nice price jump goes along with the move from 14,000 to 18,000 BTU especially in the Daiken and Mitsu inverter models I am interested in. 

 

So can I get your thoughts on BTU ratings? Any suggestions appreciated.

 

David

 

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xylophone    2,327
58 minutes ago, Genericnic said:

KKK,

 

The air con in the condo I live in has just died - compressor. I I have a question about the right BTU rating to choose.

 

The condo is about 38 sqm and is 3.85 m x 9. 86 m with a separate, enclosed toilet. It is on the 12th floor of a 14 floor building and is not on an end. The windows are north facing so I don't get much direct sun even in the hot season. I have tried 5 or 6 of the online BTU calculators and they generally agree that after adjustments for things like sunny side, etc. a BTU rating of about 12000-14,000. In talking to repairmen and salesmen, they generally are talking about 18,000. Quite a nice price jump goes along with the move from 14,000 to 18,000 BTU especially in the Daiken and Mitsu inverter models I am interested in. 

 

So can I get your thoughts on BTU ratings? Any suggestions appreciated.

 

David

 

Installed a Mitsubishi Mr Slim Inverter 14000 btus for my apt which is about 42 sq m..........cost on special was around 23,000 baht and it is great.

 

I set it on 23 degrees at night and I sleep well. During the day I put it on dehumidify for a few hours if it is hot.

 

Looked around and it was the best buy esp as Mitsi has a good reputation. Had 2 Samsungs and didn't rate them.

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KhonKaenKowboy    786

18k inverter........the outside part is much heavier duty....notice the weight difference.  If you go smaller, you won't be able to turn it off on the hottest days, because you will have to run the heck out of it to catch up.  This year was mild, 2016 was a beast.  You should get what will work on the hottest days, not the average days.....same with the hot water heaters and the coldest days..3500 watts only works most of the time.  Also, don't let a technician near it with a pressure washer and/or chemicals...it will score the aluminum and ruin the electrolytic connection between the copper tubes and the aluminum coil.

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Genericnic    1,031
On 7/6/2016 at 2:42 PM, Deepinthailand said:

We have both daikin and LG both exellent none are inverter type to many power cuts here for inverters. Both very very quite but dakin the quietest of them. Shops will tell you anything so you buy the ones they recommend as they will get commission. Go for a good family firm where are you based???? Ask locals where they bought there's.

@Deepinthailand

 

I'm curious about what the problem would be having inverters when there are power cuts. Is it a technical issue? We have a few here but not many. 

 

I did a web search and didn't really find any information on problems.

 

Thanks

 

David

 

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xylophone    2,327
1 hour ago, Genericnic said:

@Deepinthailand

 

I'm curious about what the problem would be having inverters when there are power cuts. Is it a technical issue? We have a few here but not many. 

 

I did a web search and didn't really find any information on problems.

 

Thanks

 

David

 

I did a bit of research on the same thing and it appears that in the early days of inverters there were a few problems because there is quite a bit of circuitry (printed circuit boards etc) to help with the variable frequency used to control the speed of the compressor and these seemed to be suspect in power outages/surges.

 

Not so in the newer models apparently and I have experienced several outages and power fluctuations but the inverter aircon is still working well (lets hope that this is not the "kiss of death" for it!).

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Dellboy218    148
On 08/11/2017 at 8:29 PM, xylophone said:

Installed a Mitsubishi Mr Slim Inverter 14000 btus for my apt which is about 42 sq m..........cost on special was around 23,000 baht and it is great.

 

I set it on 23 degrees at night and I sleep well. During the day I put it on dehumidify for a few hours if it is hot.

 

Looked around and it was the best buy esp as Mitsi has a good reputation. Had 2 Samsungs and didn't rate them.

There are numerous calculators to guide you as to what size air con.  http://www.calculator.net/btu-calculator.html 

Just one of many.  Just tried this one and if you have a 3m ceiling and desire 25c then you will needa 24k BTU, according to this.

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Genericnic    1,031

Just an update a a thank you to@KhonKaenKowboy for his input.

Ended up with a Daikin 18000 BTU inverter. Bought from Home Pro in Chiang Mai. The posted price was 35,400 baht but after all the discounts and promotions it came to just at 24,000 baht. That included delivery, parts and labor for installation, and unistalling and hauling off the old unit.

After having the noisy old Carrier unit, the quietness of the new unit is taking a bit of getting used to. My computer is about 6 meters away from the inside unit and if it were not for the small green light being visible I would not know it was on. And just in case that is not quiet enough for you, it actually has a quiet mode.

The 3 guys that came did an excellent and very professional job. They took about 3 hours total. They really paid attention to details. Even as they were leaving they were above average for Thailand. As they were taking the old unit down to the elevator, some of the rust colored water leaked out on the floor just in front of the elevator. Wasn't a lot and from my experience here most would have just left it for housekeeping. These guys took the time to clean it up. Overall great experience.

David

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