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westley0214
post Apr 29 2017, 02:10 PM

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QUOTE(syncomp @ Apr 29 2017, 12:43 PM)
Excluding installation. Installation another 180-200. You need to look for your own installer
westley0214
post Apr 29 2017, 06:46 PM

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QUOTE(syncomp @ Apr 29 2017, 05:14 PM)
thanks for the clarification. seems more hassle if buying this way. better go with seller with include installation
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Yup I also prefer to get from the same shop. This way if anything or need any service at least all covered within a year foc.
westley0214
post May 2 2017, 07:58 AM

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QUOTE(imoogi99 @ May 2 2017, 12:10 AM)
AirCon expert can help me here. Room size is 15ft by 13ft and height of ceiling is 10ft. Base on this site https://www.energystar.gov/products/heating...ers_product_tab cooling capacity needed is 6000 btu/hr and so 1hp aircond is sufficient.

But if I use this calculator http://www.dry-it-out.com/Index.aspx?Page=cooling-calculator cooling capacity is 11849 btu/hr and therefore 1.5hp aircond is needed.

So which is the right way to find the right size of aircond for the rooms?
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Generally 1 hp can only support up to 150 sqft (assuming all other factors like windows sealing, number of occupancy in the room around 2 persons etc.). Yours is 195 sqft, thus you will need 1.5 hp.
westley0214
post May 3 2017, 04:53 PM

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QUOTE(christy00 @ May 3 2017, 04:43 PM)
many of this model expensive..the installation cost must be pricey...
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Nowadays installation cost for non-inverter and inverter is the same. Both already using R410A environmental friendly gas, so both also need copper tube.
westley0214
post May 4 2017, 07:35 PM

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QUOTE(christy00 @ May 3 2017, 06:14 PM)
but the gas is different right?i heard that the cost for the gas also bit costly.
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The gas is the same. Both also r410a .

Previously non inverter used r22, nowadays non inverter also use r410a.

So there is no difference in gas cost.
westley0214
post May 15 2017, 04:26 PM

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QUOTE(ExCrIpT @ May 15 2017, 04:23 PM)
Hi, For those who as wall unit in their bedroom and uses it every night. how often do you call for cleaning services in a year? I have to do it every 3-4 months.
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Every 3-4 months is like too frequent. Normal frequency should be around once per year only.

Is your area very dusty?
westley0214
post May 15 2017, 04:34 PM

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QUOTE(ExCrIpT @ May 15 2017, 04:32 PM)
its a housing area where its away from any big main roads and there's not that many cars that passes by. Only one unit out of 5 others in my house needs servicing that frequently and I'm using an inverter unit.

after 5 months, the room will no longer be cold despite it being on low temp and full blast

Paying for cleaning service that frequently is rather expensive so Im still trying to find out the cause of it and I am contemplating buying a new non inverter unit all together. serving that unit 3-4 times a year for 2 years is enough to buy a new unit d for 1 HP sad.gif
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Is your air con correctly sized? Seemed to me either an undersized air con or faulty unit. Shouldn't need that frequent servicing.

Also did you clean the indoor filter regularly? Like every two weeks.
westley0214
post May 15 2017, 04:43 PM

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QUOTE(ExCrIpT @ May 15 2017, 04:40 PM)
its a small room and i have the air con unit blowing straight at my desk yet i'm still sweating under it  blink.gif
and yes I do clean the indoor filter regularly 3-4 weeks once but it doesn't solve my problem. It has been like this for more than year and I service my aircon every 4-5 months when i can't stand it anymore cuz its really really hot.

It will be cold for a month or so after cleaning with only low speed required. after a month i'll have to turn up the fan speed gradually .

you recon that the unit is faulty? should i just go ahead and buy a new one.
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Another possibility is the refrigerant is leaking somewhere. When the contractor came for servicing, did they mention about gas leak? Do they need to top up the gas for you every time they do servicing?

Is your drain pipe correct installed? Should be slightly slanted to drain the condensate to outdoor.

Buying a new one seemed like the last resort. I would recommend you to troubleshoot your current unit first.

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