Portable air conditioner - can the exhaust pipe be connected to ventilation?

Question

Hello! I have a 3.5 kW portable air conditioner and I would like to connect it to the bathroom ventilation, but: - the outlet pipe has a diameter of 125mm, and the ventilation ducts 100mm - will such a reduction affect the operation of the air conditioner? can such a reduction be applied at all?...

Szybki Elektron · Answer

Hello. I advise against this solution. Connecting any forced circuits to a gravity ventilation system is incorrect - it changes the amount of air change for which the installation has been calculated, and even reverses the drafts in other circuits. What will happen to humid air after washing or bathing? Greetings.

luki8L · Answer

Thanks for the quick reply! I would probably not turn on the air conditioning during washing and it is not used all day, so probably a compromise would be possible ...
However, I have already carved a hole in the wall

, I made an exit from the 110mm sewer pipe and finished the outside with a grid.
Greetings!

kidu22 · Answer

It's about the neighbors. Not your laundry.

luki8L · Answer

I have my neighbors 30 meters behind the fence ...
Maybe I didn't explain it quite clearly - I live in a "one-family post-German" house on the 1st floor (a family downstairs). Some time ago I made a kitchen and a bathroom (previously it was only downstairs), of course with ventilation, to which I was going to connect the air conditioner.
My main point is that it will be necessary to reduce the exhaust pipe from 125mm to 100mm and the air conditioner will blow hot air through a much longer system. Hence my question, will it not affect the proper operation of the air conditioning?

kris_quattro · Answer

Hello,
despite the fact that the use of a portable air conditioner is not an ideal solution, I decided to use it.
I want to lead 110mm PVC pipes outside in several rooms, I have a question for an experienced person, should I install the pipes horizontally or with a slope in one (what?) Direction? Naturally, it is about condensation.

Please kindly advise me.
greetings
Krzysiek

Zbig30 · Answer

In DTRs of portable air conditioners, it is usually forbidden to extend the original pipe and its distance is max. 2-3m and the height of the outlet point is also usually small. So if you remake it with dimensions similar to the original ones.
The condensate is released on the evaporator in the air conditioner and is collected in a tank that must be emptied regularly or a tube is led outside. Hot air flows through the large pipe from the condenser cooling, so there is no condensate there.

kris_quattro · Answer

And is a lot of condensate coming out of the outlet pipe?
This pipe is only intended to be a wall thickness (40cm).
What do you think about this bleed?

"I want to lead the 110mm PVC pipes outside in several rooms, I have a question for an experienced person whether the pipes should be installed horizontally or with a slope in one (what?)"

Zbig30 · Answer

If it falls outside, the condensation from the air conditioner will not be there! Some traces of water may condense, but this is due to the difference in temperature inside and outside, but this is under specific conditions when the device is stopped, e.g. after a night. After that, it will be blown away with a large amount of hot air from the condenser cooling.

pkb1 · Answer

Hello, and can such a portable air conditioner be connected to a recuperation unit?

Portable air conditioner - can the exhaust pipe be connected to ventilation?

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