Split System install

[SHELCO]

Does anyone know if the split systems can be installed inside a ceiling pointing down.
My issue is my home is a colonial and it is finished.. There is zero access to the first floor to install central ac, the cellar has a finished ceiling.
The attic is open
My question is can I put the reciever in between the rafters in the attic in a hall way aiming towards the floor. My issue is I don't want to hang a unit on my wall.
trying to be creative

 

[Highbeam]

Dude, they sell ceiling cassetes that are made to fit between joists. They look sorta like a ceiling AC unit in a travel trailer. All the majors make them. They also make ducted minisplits if you only want to see "normal" duct grilles.

I too hate the ghetto look of the standard wall units. I may grow to love them but anybody visiting my home will think it looks stupid.

 

[Highbeam]

https://www.acwholesalers.com/Ductl...Air/cat1029.ac?mainCat=cat1094&subCat=cat1033

Here's the selection. It's quite good.

 

[Highbeam]

My question is can I put the reciever in between the rafters in the attic in a hall way aiming towards the floor. My issue is I don't want to hang a unit on my wall.
trying to be creative

Putting a heater in a hallway will easily heat the hallway. To heat the living space you would be much better off putting the indoor unit in the living space. Imagine that heater cycling on and off every time the hallway reaches setpoint.

I say heating but cooling is the same thing.

 

[theoldwizard1]

Putting a air handler in a hallway will easily heat/cool the hallway. To heat the living space you would be much better off putting the indoor unit in the living space. Imagine that heater cycling on and off every time the hallway reaches setpoint.

They also sell units that are suspended from the ceiling, but they would have the same problem as just mentioned Ceiling Mounted Heat Pump

Better yet, you could get 2 of these air handlers, mount one at each end of the hall, pointing in opposite directions.

 

[Highbeam]

Ouch, those buggers are expensive.

 

[SHELCO]

As usual, I should have given more detail. When you walk u p the steps thre is a small landing with bathroom infront of you, bedroom to left and 2 bedrooms to right,

The air handlers are excatly what i need..thinking one in master bedroom and one in the other ''larger bedroom'' that will take care of the upstairs. 2 catridges off of 1 slim line?

Then I can purchase another unit for downstairs jus o take th edge off..
Thanks guys

 

[LS6 Tommy]

I've said this before-
Cassette units are problematic at best. They have very poor air flow, they sometimes drip condensation, the blower motor capacitors go bad & it requires taking almost the entire unit apart to get the electrical panel out to replace them.

Tommy

 

[theoldwizard1]

2 catridges off of 1 slim line?

It can be done with the proper compressor. Some will even go as high as 4.

 

[KoRNTERA]

It can be done with the proper compressor. Some will even go as high as 4.

You can actually go to 8 indoor wall heads or ducted slim air handlers or ceiling cassettes off one outdoor compressor bearing unit. Mitsubishi makes a 2,3,4,5,8 port outdoor heat pump and Daikin makes a 2,3,4,8 port system as well. In a commercial setting the possibilities are endless, my company just completed a 4 story building with 89 wall heads off a 60 ton outdoor Mitsubishi city multi heat pump

 

[SHELCO]

Do I have to run a drip line from the heads? That would be a ton of work. You mentioned they leak, would that be the condensation

 

[pseudorealityx]

Do I have to run a drip line from the heads? That would be a ton of work. You mentioned they leak, would that be the condensation

For the ceiling units, you need a condensate pump.

For the wall units, it's a gravity drain, unless you 'need' a condensate pump.

And yes, the dripping is condensate.

 

[Jackfre]

The cassette units are more difficult to service, but If you have good access from above you will be ok. I think the cassettes have a built-in condensate pump. You can block off up to two sides on them also, so you can make it a 2, 3 or 4 way blow. As far as the mini pumps go I have had good luck with the Aspen and Saurermann. I'm with Pseudo on preferring the high wall to cassettes.

I would suggest you buy a dual unit for the upstairs and a high efficiency single for downstairs. The cost of the dual vs triple is substantial. I bought the 16 seer dual for upstairs and a 25 seer unit for downstairs at very nearly the same price as a triple

 

[pseudorealityx]

The cassette units are more difficult to service, but If you have good access from above you will be ok. I think the cassettes have a built-in condensate pump. You can block off up to two sides on them also, so you can make it a 2, 3 or 4 way blow. As far as the mini pumps go I have had good luck with the Aspen and Saurermann. I'm with Pseudo on preferring the high wall to cassettes.

I would suggest you buy a dual unit for the upstairs and a high efficiency single for downstairs. The cost of the dual vs triple is substantial. I bought the 16 seer dual for upstairs and a 25 seer unit for downstairs at very nearly the same price as a triple

The ceiling cassettes do typically come with a built-in condensate pump. You'll want to buy an auxiliary one from my experience. Poor lift performance, and added reliability.

 

[Jackfre]

What I've done on those is to run my main drain line to the cassette and then make an indirect connection to it, so the pump is lifting only the 12-18" to the indirect drain. I avoid anything that needs pumping as best I can.

 

[monkeyspanners]

There is usually about a 600mm lift on a cassette for the condensate water. You don't need to use all the 600mm if its not needed for the fall, the drain needs to fall 1:100 so you can run it nearly 6m without an external pump.