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This post has been edited by halcyon27: Oct 23 2017, 12:20 PM

Get them to check as they do pressure leak test. Then ask them the pipe sizes. Write it down and post it back here.

How far do these piping run to the outside?

This post has been edited by halcyon27: Oct 23 2017, 12:23 PM

Thanks.

Very likely I will get a R32 Air Cond , daikin (R32 Inverter), I don't see any other brands available in R32

2HP perhaps for now, only Daikin. Sharp has it up to 1.5HP (AHXPnnUXD). If going that route the pipes better be good as it's mildly flammable. They removed the flame retardant blend combined with it from R410a.

hi, how do they do leak test actually (for 2 weeks), and is this normal practice for AC pipe installers after they install?

They will just fill it with gas probably nitrogen and seal the pipe under pressure on both ends as it should be when charged with refrigerant and take a reading. Then after two weeks take a reading to compare with the previous.

Not all would do. I only specified for it on existing embedded piping during renovation.

This post has been edited by halcyon27: Oct 24 2017, 11:18 AM

hi sifu,
my living room and dining is combine. no wall one.
size 36x16x9. Plan to get cassette, but dunno how to calculate.
Thank for guidance. TQ

9ft ceiling too low for cassette unless it's net height? 10 ft minimum so that when plaster 1ft there's 9ft of net ceiling height. For 9ft after plaster net 8ft left. Ideal is 11ft ceiling height.

Is dining and kitchen combined also or separated by a wall and door? Is this landed or condo? Use this post as a guideline. You may need two wall mounted split units. At least 2.5hp in living and at least 1.5hp in dining assuming living room is about 60% of the space. More if factors suggest higher cooling load required.

This post has been edited by halcyon27: Oct 27 2017, 07:26 AM

Thanks for replied. thumbs up. Ya net living 9' 10", dining net 9ft. dining and living combine no wall no door.
Kitchen and dining is separated by wall/door. Ya correct around 67% is for living.

so 2.5hp in living and dining 1.5hp ya?

If alternative i plan to put fan only in dining. and one air con in living need use how many HP aircon?
coz dining only eating twice a day only. Thank you sifu

Ceiling AC clearance within the ceiling dictates how low the plaster ceiling should cover. Older models usually 11" but newer ones could be 9-10". It depends on the model. Even after that, there should be 1" gap from ceiling.

If you live in condo and there's no balcony or door accessible AC ledge to place the compressors, but rely on the space outside through the window, that window if it has a divider will limit how wide a compressor can fit through. In such cases, perhaps 2 or 3 units of 1 or 1.5hp or even possibly 2hp may fit through. The width of the gap determines what compressors can fit through. Not a problem with landed.

Alternatively, dining can be 1hp living can be 1.5hp but it all depends. Calculate and see based on the link given. If that space chun chun W,SW,NW facing, cooling load will be 20-30% higher. The calculation will give a rough estimate.

This post has been edited by halcyon27: Oct 28 2017, 08:54 AM

Hi Sifus,

Walk around HomeDec today and hunting for aircond. Comparing Daikin, Panasonic and LG (all 1.0HP inverter models), which brand will b the most reliable and low power consumption?

Thanks in advance.

Got Homedec today? where bro?

Daikin & LG.

KLCC. i think midvalley also got something today. then next month got another home living something. i think ever month also got nowadays.

hi, have you gotten a contractor?

hi, chances are the Pipe will be good for most 1hp AC in the market, for 1.5hp, you want to play safe you can go for Mitsubishi Electric MSY-GJ13VA it uses same piping as 1hp. if you want 2hp you have no choice but use 12.7mm (1/2") on gas pipe. but you should do a leak test just to make sure Sandarby did a good job on the installation.

No, not yet. I got my air cond guy to come and have a look at the room. He suggested adding an awning to cover the walls that are exposed to direct sunlight.

do you have existing pipe or laying new? what brand & spec are you going for? are you considering those branded ones with individual insulation sleeves?

yea if direct to sunlight it will lower the AC efficiency and also insulation. but still, even with a hood it will still be hot, just not as hot as direct.

No existing piping. Still undecided on the brand & specs, but leaning towards 1hp.

KLCC Convention Center