guys,
will cassette ceiling consume more power?

Please check the spec. Look at the power input and starting amp. The lower it is the better. Cassettes has relatively higher price compared to normal room air cond.

No, but it's more expensive as it has a lower volume.

The design of the cassette is more complicated.

It is better to use wall mount as servicing is more easier.

What do you mean by lower volume?

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Added on July 3, 2012, 1:19 pmThe design is indeed more complicated, but it does not run away from fan, coil, filter. Outdoor units are the same. If you are doing a plaster celing, might as well get a ducted unit. Seal it and duct the discahrge can be at the front and at the end of the hall.

This post has been edited by lingleeyen: Jul 3 2012, 01:19 PM

any idea how much does Ceiling and ducted unit cost?

Number of units sold in a year.

Installation + unit might be 60 to 70% more than normal room aircond.

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Added on July 3, 2012, 2:00 pmNot true. What you do not see in SenQ or Harvey Norman does not mean that they are not selling. Cassettes are selling like hot cakes. Ducted units are more tedious in designs, there for people go cassettes. If designed properly, the ducted is seamless.

This post has been edited by lingleeyen: Jul 3 2012, 02:00 PM

design wise no comment but service its just as easy as wall unit, be it normal filter cleaning or chemical wash, as long you got the long ladder


ceiling conceal unit + ducting + liner = 200++% of normal wall unit, and the efficiency of ducted will be lower than wall unit, so the AC nunit must be 1 size up

Service will be messier as you need to access our ceiling.

Lower efficiency of units does not mean that you need to upsize your AC. Low efficiency means you need more input power to generate the same cooling capacity. Hence, if you use ducted units, you electrical bill will be higher. I have not checked this fact, but generally it is like that.

Pay more bill and take longer time and stress the compressor, or pay more, upsize it, get cool air faster… your choice

Initially I thought of installing 1 cassette air con in my living room, but i scrape the idea because the cassette needs 65inches plaster ceiling depth to have it installed. My ceiling would then be even lower

Another thing is because my neighbours house installed cassette aircon, but during installation, the guy damaged the plaster ceiling..he wasnt so skillful. So i realised that in future, just in case it is noisy or whatever or something, I may need to meddle with it and may crack the plaster ceiling a little, so I scrape the idea...also because I was told it will use more electricity since it is a large® unit but then again, I'm not cooling it to be like a storage room..dont know how true anyway

u must be kidding


350mm or 14" ceiling depth is more than enough to install ceiling cassete unit

Agreed.

It is difficult to take down the whole unit for service. Compare the wall mount.

Cassette also easier water leaking. See alot in mall. Dont no why.

And the ugly side is you need a hole beside the unit for easy service. So every cassette unit have a cut away hole on the plaster ceiling.

Why take down the whole unit if its not broken??

Normal filter cleaning just remove the clip n cover, wash the mesh filter, no difference with wall unit.
The cassette type fan blade is easier to clean than the wall type....

If want to do chemical wash, both wall or cassette type also need air con man to take down the indoor unit and pay $$￥ for the service.

Cassette use water pump to discharge the condensation water, if the pump spoil or the pipe clogged, the ac will stop functioning, most case leaking due to poor connection done by ac guy.

As for the access opening, is a must for cassette ac install between slab n ceiling, not that ugly lar…some ppl install wall unit above tv wall panel/ half sunken inside the ceiling/ cabinet lagi ugly lor

For upper floor with roof, no need access opening at every cassette unit, one access to the roof will do

LOL...sorry sorry..not inches..cm....thinking in ft and inches for too long..haha

Anyway i think he may not like such installation, so he tell me such things...i measured the cassette, only 37cm. Still wondering if I should. Is the aircon piping and wiring teh same with any regular 2.5hp?

Do you have any idea roughly how much a 2.5hp cassette type aircond costs?
i'm also considering between the cassette and wall type for the living room.
thanks

Nope. If it is cassette, i dont need to spend, there is an extra unit at my uncle's shop that i can take if i want, so I didnt survey on the pricing. if it is wall mount, i am considering between have 2 units of 1 or 1.5hp because of the layout and the location of the aircon..

still need to think mer, foc wor....2.5hp casstte basic rm3.xk, york rm3.1k if not wrong, i bot 2011 year end

must think because contractor say plaster ceiling will be lower than if it is wall mouted ma...and I'm not sure of the electricity consumption..will I be using more electricity?

If i have 2 unit, then i can just turn on living or dining. If one unit cassette, it will attempt to cool both area when I spend most of the time in living room..aircon point is RM180 and to conceal piping with copper pipe of 0.61mm with 4 col wiring for 2.5hp is RM600, for 1hp is RM400, 1.5hp is RM450

Or maybe just 1 unit of 1.5 at the living, dining fix later just do wiring...wiring work for the entire house cost a bomb

If you have minimal 10' ceiling height than is not that bad. Anything lower don't think of using cassettes.

Depend your living room, of you have large area better user 2hp, + 1hp. That is my current setup too.

You can do wiring and conceal piping first.

Hehe, entire house wiring for double stories minimal 10k if you want to do it proper. Mine already more that that.

Ceiling cassette should be considered only if:
1. Very high ceiling - needs 28-40cm clearance. High as in over 11'
Ceiling clearance of 9'-11' is good for heat stratification - the hot air needs to rise above our heads to give that comfortable feeling. Anything lower than 9 ft, we start to feel hot already. So in a sense I would not plaster if my ceiling is 9' but could if over 11'
2. Multiple area to cool which would do well with a centrally located unit.
eg. Dining and living in the same un-partitioned floor space

The Daikin SkyAire units are rounded means 360 degree cooling plus they have lower clearance.

This post has been edited by halcyon27: Jul 5 2012, 12:43 PM

Cassetes vs ducted? i thought it should be cassettes vs normal split air conds. I'm pretty sure the volume of normal split air cond will outnumber the number of cassetes sold easily.

Somebody was asking about cassette, so I suggested ducted units. Split AC outnumbered the cassettes, but they have a tough fight. I do not believe the ratio is 90/10. more to like 60/40.

I do not think it is because split is better. People installed it based on layout and usage, if you can place one in the middle to be shared by 2 why not? just thinking

Yeah. Depending on application and how you want it to turn out. I am using a ducted to run teh whole house.

Strong project base brand can easily sell more cassettes and ducted units than normal single split.

should we installed the casette-type air cond first, or the plaster ceiling first?

besides, is man hole a must for servicing? thanks

We call the normal split unit as wall mounted. Ceiling cassette is split unit type air conditioner too!

ya, but i think <lingleeyen> was saying ducted units aka ceiling conceal unit

i', m getting a cassette aircond for my house ...at first thinking of buying york but panasonic giving me a very good offer almost

rm3k for 2.5hp. Any comments for this 2 brands for cassette type?

Before u buy, ask your ac man what is the copper piping size and how many wire provided from indoor to out door.

I also choose Panasonic but because my ac points got 3 wire only from indoor to out door, no choice must use york or daikin.

I know. It is just that every one here is not refering the normal house using wall mount as single split wall mounted. So next time we have to go all the way to describe the connectivity? Multi split wall mounted, single split ducted, multi split cassettes?

Good to be specific! We seldom use multi split here cause seldom have constraint in the outdoor quantity...

I got quoted 2.5HP york cassette type for 2,200 without installation.

mind to share the contact here, i still need 2 more unit 2.0hp cassette

I got from LionMas in JB. All branches should have more or less same price.

Bro rm2.2k is very cheap . This shop is electrical shop ? I cannot find anywhere near klang valley.


Thanks for sharing btw

I'm in Johor... This shop is selling quite a lot of electrical items and have many branches in JB.
You can see their website www.lionmas.com

what is the advantage of the cassette type air cond? 1 cassette can use for 4-5 areas? noob here

Dear bro, anyone here uses samsung cassette unit before? Need some feedback. My living rea plus dining area about 450sqft. 2.5 hp cassette unit sufficient? Pls provide me some guide. Cheers...

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Added on November 20, 2012, 4:52 pmDear bro, anyone here uses samsung cassette unit before? Need some feedback. My living rea plus dining area about 450sqft. 2.5 hp cassette unit sufficient? Pls provide me some guide. Cheers...

This post has been edited by Samyck: Nov 20 2012, 04:52 PM

Would a casette type of AC be better for an open plan type of house?

Living, dining and kitchen all in one open space of around 500sf. I was thinking to install cassette type instead of buying 3 wall AC.

Will rarely use AC actually.

Yes, if cooling load sized appropriately for 500sqft and ceiling height min 11ft.

Thank you for your feedback.
The house is 1100sf.
I believe the space that I would like to use for 1 Aircon is 550sf based from the floor plan

Dining wall faces which direction? Ensure ceiling 11ft min. 550sqft will vary between just over 3.0 to slightly over 4.5HP depending on balcony orientation. If dining wall faces south or southwest, it will get hot...even through the night. Compressor will likely be place outside in the balcony.

This post has been edited by halcyon27: Jul 1 2019, 06:47 PM

Balcony is facing west. That place is not that hot fortunately. I always go there to renovate during the afternoon. Surprisingly not hot. I don’t even have fan installed yet. Very breezy as it’s Facing a lake and is totally unblocked.

My ceiling height from floor to plaster ceiling is 9.75feet. And then there is 40-45cm gap between the plaster ceiling and the beam.


I had 2 AC points last time. At the dining and living hall. I closed at the living hall and wanted to install at the dining hall (which was going to be my dining) because here it’ll cover more area including the kitchen whereas the other side won’t cover the kitchen.

But now due to this it limits my living room design. Can’t do much as the Aircon is there. Planning to do feature wall with melamine/laminate wall. But now it’ll look odd with the Aircon.

So now either transfer to back to the other side (new dining) or do on the ceiling but worried it’ll leak and ruin the plaster ceiling and also when they do servicing they’ll dirty the plaster ceiling.

This post has been edited by barca96: Oct 31 2020, 11:20 PM

After more than a year, still have not resolve the issues you are facing ?

This post has been edited by mini orchard: Oct 31 2020, 11:26 PM

Sorry. I just reread. Ok there is a 9.75ft net after plaster. The insulation on the piping, just have it individually wrapped/jacketed. The drainage piping too.

This post has been edited by halcyon27: Nov 1 2020, 11:51 AM

havent moved in. A lot of delays.

noted with thanks

If 10 ft can not use ?

house/office, low ceiling/high ceiling

Can but I rather not. Explained here way back. You potentially could lose more ceiling height than initially planned. Retain that height which is good for heat stratification. and just get an 72-84" ceiling fan if the space allows for it. Cool the space with 3HP AC and long throw etc.

If you require drop ceiling because of box / trough lighting, have it inset with a gap for curtain railing and an adequate set back where the wall mounted AC is located. Most of the ceiling area should retain the original height.

If original ceiling height is 11ft or more, then as long at least 9.5-10ft net clearance is there, you should be fine.

This post has been edited by halcyon27: Nov 2 2020, 06:41 PM

Daikin expected to launch new ceiling cassette product in 2021 designed by Malaysians that was named top 100 in the 2020 Good Design Award in Tokyo.

Source:
Cooling Post
G-Mark

From the description, it looks like it's designed to fully leverage coanda effect for indirect cooling. The panels are somewhat similar to the new Samsung Triangle with lots of holes except that this employeed in a ceiling cassette.

This post has been edited by halcyon27: Nov 3 2020, 03:34 PM

Thanks. I have to wrap the piping? With? I do this or the installer is supposed to do this?

Installer. Since the piping is already there, use Insulfelex or Superlon or equivalent. But jacket each pipe with one matching sleeve as long as they are in the ceiling. The drainage pipe also as the condensate will cause the pipe to sweat.

Otherwise if AC piping is not there yet, prejacketed piping from Inaba Denko ie Paircoil or the Korean version of it by Smartco. They are mentioned in this subforum. One example of its usage is by forumer here.

This post has been edited by halcyon27: Nov 7 2020, 10:18 AM

thank you very much for your advice.
unfortunately after measuring the compressor area, I won't have enough space for a slightly bigger cassette compressor. There is enough space but only if all 3 compressors are stacked on top of each other without any spacing.

cassette compressor = 875 w x 695 h x 320 d
split compressor 2x = 718 w x 525 h x 255 d




btw I already have piping in my condo done by the developer, can I change to this higher end piping?
or would it be too much work for the ac guy to change the piping?
i assume the piping will be more leakproof hence worth the extra few hundred investment.

thanks

On the right to the compressors, what is the grey thing from ceiling to floor ? Solid wall ?

yes a wall between my balcony and inside of the house.
forgot to mention, another problem for me is I installed a kitchen hood ventilation.
perhaps the installer should've installed it right at the top of the ceiling instead of lowering it.
at the top there is already bathroom ventilation and water pipe. so should've kept everything up top.
very troublesome designing this house due to the limited space.

there is not even a space for shoe cabinet, no window at the kitchen for ventilation.
but upside is that the location and view is nice
could be happier but still satisfied all things considered.

The compressors need to blow away the hot air to an open area and I think the direction is wrong. The compressors fan should face you when you look at it but then you have a problem using the wm when the ac is running.

sorry what is WM?

the developer actually point their fans towards the balcony as you mentioned but my aircon guy said we wont be able to ist at the balcony then and most of the owners here also point it outwards as per pic. It is partially blocked as there is a sort of grille design.

Washing machine.

I suggest you show the photo to the manufacturer and ask for their comments. If they say no issues, just let it be.

There is such a thing as a multi-split system where one large compressor services up to 4 locations depending upon the model. One compressor to one location is typically called single split. What's deployed at each location doesn't matter as long as it's within piping spec. It can be wall mounted in bedrooms and ceiling cassette in living / dining not exceeding total HP of the multi split compressor. These are common esp in SG typically referred to as system 2, 3 or 4 depending upon the number of AC locations.

The wall where the three AC compressor is located should be blowing out into the void with multiple thin pillar grille screening so that there's unrestricted air flow otherwise the compressors will die of heat stress.

This post has been edited by halcyon27: Nov 9 2020, 03:12 PM

Hi yes I heard about that but my aircon guy told me not to get it so I didn't. It would've saved me so much space.



Sorry. Is it correct as it is or it should be turned?

If it's blowing outwards it's correct. If it's blowing inwards, it will blow hot air into your balcony area. So where is it pointing?