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How many m3/h must I extract mechanicaly from a normal bathroom insde a house ? thanx !

I dont understand what does the automatic or manual change over thermostat mounted on the FCU ! What does he change over ? On winter on the innlet I have hot water and on the summer I have cold water !

I have a problem that I don't understand !!! I am useing a FCU (vertical cabinet) to cool the air in the summer and to make it hot in the winter ! The FCU I am useing is in the 2 pipe chage over system, so the coil is used by the cold water (7-12 grdC) and by the hot water (80-70 grdC) ! Here...

Thank you ! Yes it helps a lot !!!

Thanks a lot ! Your info helped a lot !

I have two simple questions : 1. Is there a simple way to determin the volume of water witch is put in a heating installation (installation that contains copper pipes, aluminium radiators and some FCU) ? Are there any values like : 20 liters of water per 1000W of instaled heating, or something...

Thank you !!! But it must be someone who tried this system !!! I don't see why it won't work ?!?

I have a simple question ! Is it a problem if put the copper pipes coated with mineral wadding directly in the concrete floor? The copper pipes are used for a heating instalation .

Who can provide me a VRV functioning scheme ? Thanks a lot !!!

I would like to know the diference between VRV systems and multispilt systems. Is one better then the other, or there is a better system then those two ? Thank you very much !