portable airconditioner
Discussion
all, interested in thoughts...
Our bedroom is in the eaves of our house and as such gets v warm.
The velux windows if open do help but then of course let light in when sun comes up.
I had a cupboard big enough to fit a portable aircon unit in so fitted one and then cut hole through back of cupboard to vent exhaust into the void behind cupboards (which isnt connected to the room). this exhaust hose will eventually be vented to outside once my mate brings his big drill/core cutter over.
Now, I fitted a grill to the cupboard door and a vent pipe from the aircon blower to this grill. I have also boxed in the aircon unit so the cool air can only escape through the vent.
BUT.. without the cupboard door open it just doesnt cool the room enough. With door open it does cool the room, not to ice cold but to a decent temp. With door open though its not ideal as it cuts off the room.
its a 9000btu unit that covers 235 cubic ft/minute. The room is about 15ft x 12 ft but has a dressing area about the same size linked by corridor which is effectively all one room.
Is it just that the room is too big or have I missed something with where the unit is situated?
Our bedroom is in the eaves of our house and as such gets v warm.
The velux windows if open do help but then of course let light in when sun comes up.
I had a cupboard big enough to fit a portable aircon unit in so fitted one and then cut hole through back of cupboard to vent exhaust into the void behind cupboards (which isnt connected to the room). this exhaust hose will eventually be vented to outside once my mate brings his big drill/core cutter over.
Now, I fitted a grill to the cupboard door and a vent pipe from the aircon blower to this grill. I have also boxed in the aircon unit so the cool air can only escape through the vent.
BUT.. without the cupboard door open it just doesnt cool the room enough. With door open it does cool the room, not to ice cold but to a decent temp. With door open though its not ideal as it cuts off the room.
its a 9000btu unit that covers 235 cubic ft/minute. The room is about 15ft x 12 ft but has a dressing area about the same size linked by corridor which is effectively all one room.
Is it just that the room is too big or have I missed something with where the unit is situated?
illmonkey said:
Is it cutting off? The sensor will be on the AC unit, and you're locking it in a small hot cupboard.
In which case it would be a small cold cupboard, seeing as it is an air conditioner......;)If it can't blow air all around the place it'll just cool the cupboard and then click off.
I really think it needs to be able to breathe, as it won't cool by conduction, but needs to be able to circulate air freely around the room.
King Herald said:
illmonkey said:
Is it cutting off? The sensor will be on the AC unit, and you're locking it in a small hot cupboard.
In which case it would be a small cold cupboard, seeing as it is an air conditioner......;)If it can't blow air all around the place it'll just cool the cupboard and then click off.
I really think it needs to be able to breathe, as it won't cool by conduction, but needs to be able to circulate air freely around the room.
CraigVmax said:
Now, I fitted a grill to the cupboard door and a vent pipe from the aircon blower to this grill. I have also boxed in the aircon unit so the cool air can only escape through the vent.
BUT.. without the cupboard door open it just doesnt cool the room enough. With door open it does cool the room, not to ice cold but to a decent temp. With door open though its not ideal as it cuts off the room.
You tell us how the air gets from the air con unit to the room, but how does the air from the room get into the air con unit?BUT.. without the cupboard door open it just doesnt cool the room enough. With door open it does cool the room, not to ice cold but to a decent temp. With door open though its not ideal as it cuts off the room.
good point, I'm not sure where on the aircon unit it sucks in the hot air, I'll have a look, its this one btw..
http://www.pixmania.co.uk/uk/uk/6181455/art/royal-...
http://www.pixmania.co.uk/uk/uk/6181455/art/royal-...
illmonkey said:
King Herald said:
illmonkey said:
Is it cutting off? The sensor will be on the AC unit, and you're locking it in a small hot cupboard.
In which case it would be a small cold cupboard, seeing as it is an air conditioner......;)If it can't blow air all around the place it'll just cool the cupboard and then click off.
I really think it needs to be able to breathe, as it won't cool by conduction, but needs to be able to circulate air freely around the room.
dibbers006 said:
In my experience, the rating is complete BS...
This unit is really amazing. Specs say it uses 890W but gets 9000btus of cooling out of it.890W is only about 3000btus....
I wonder what BTU Booster technology is? Evaporate water as well?
Craig, as you're chopping your whole house up, might as well make sure the inlet is a low as possible in the room and outlet as high as it can be.
CraigVmax said:
yup thx mate, the outlet is as high as can be but I'll put the inlet low down now. Hopefully it makes some more difference then
Well the cold air pooling around the floor might as well get pumped around. Less chance of the air just popping out of one vent and straight back into the other too! 
ThatPhilBrettGuy said:
This unit is really amazing. Specs say it uses 890W but gets 9000btus of cooling out of it.
890W is only about 3000btus....
I presume it draws 890 watts when running, and the cooling performance is 9000 btu's or 2.63Kw.890W is only about 3000btus....
ThatPhilBrettGuy said:
Evaporate water as well?
Yes the condesate water will be "evaporated" in the condenser air outlet, similar principle to most domestic or commercial fridges.JM said:
Yes the condesate water will be "evaporated" in the condenser air outlet, similar principle to most domestic or commercial fridges.
Pity they can't sort that out on other air-con units, to save having that dripping everywhere, or drain pipes running hither and yon.We'll be using two split units on our new house, but running that drain is going to be a bit of pain, unless we just drip it into space. How about a home made evaporative tray, seeing as the sun shines red hot most days?

King Herald said:
JM said:
Yes the condesate water will be "evaporated" in the condenser air outlet, similar principle to most domestic or commercial fridges.
Pity they can't sort that out on other air-con units, to save having that dripping everywhere, or drain pipes running hither and yon.We'll be using two split units on our new house, but running that drain is going to be a bit of pain, unless we just drip it into space. How about a home made evaporative tray, seeing as the sun shines red hot most days?

What about using a mini pump and small 1/4 hose?
JM said:
King Herald said:
JM said:
Yes the condesate water will be "evaporated" in the condenser air outlet, similar principle to most domestic or commercial fridges.
Pity they can't sort that out on other air-con units, to save having that dripping everywhere, or drain pipes running hither and yon.We'll be using two split units on our new house, but running that drain is going to be a bit of pain, unless we just drip it into space. How about a home made evaporative tray, seeing as the sun shines red hot most days?

What about using a mini pump and small 1/4 hose?
so the advice ref venting to the inlet was golden, all working great. i have also fixed a vent pipe to the blower so everything goes into the pipe and out into my room through the vent.
Question though, v occasionally I can feel slight moisture in the air coming out, if any of this runs back down into the unit could it damage it or cause fire?
Question though, v occasionally I can feel slight moisture in the air coming out, if any of this runs back down into the unit could it damage it or cause fire?
CraigVmax said:
so the advice ref venting to the inlet was golden, all working great. i have also fixed a vent pipe to the blower so everything goes into the pipe and out into my room through the vent.
Question though, v occasionally I can feel slight moisture in the air coming out, if any of this runs back down into the unit could it damage it or cause fire?
Glad to hear it's working.Question though, v occasionally I can feel slight moisture in the air coming out, if any of this runs back down into the unit could it damage it or cause fire?
The moisture is coming into the room? There is a drip tray to collect the condesate which will probably drain to a sump where it will be 'vaporised', so if any moisture droplets are condensing/collecting on the tube into the room, they should just run back into the evaporater and down into the drip tray.
But there shouldn't be moisture coming out into the room in the first place, unless maybe the drip try is full and not draining away properly.
well originally, the filters and air intake were butted right up to wall stupidly, it was then that I felt moisture coming into the room from the blower.
I havent felt that since I turned it round and put a vent on the door so the inlet can suck air from the room.
Afaik, on this model moisture is sent out through the exhaust pipe?
I havent felt that since I turned it round and put a vent on the door so the inlet can suck air from the room.
Afaik, on this model moisture is sent out through the exhaust pipe?
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