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Two fan wiring

Discussion in 'Electrics UK' started by sha256, 24 Dec 2015.

  1. ban-all-sheds

    ban-all-sheds

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    A trivial bit of logic control.
     
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  3. ban-all-sheds

    ban-all-sheds

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    I know what the the symbol for the SI derived unit of pressure is.

    I also know that dynamic pressure is also measured in Pascals, and that Pascals are NOT synonymous with static pressure.
     
  4. ericmark

    ericmark

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    I am not using a PLC to control a window opener or fan I have better uses for them. As to why not made that way to start with I don't know? In a bathroom you don't want a draft while in bath or shower but do want to remove moisture after you have finished. I have noted does not really matter what speed the air is changed it takes about the same time for the bathroom to dry out. Faster fan means colder bathroom so fan really needs to be quite slow but maybe run for 30 minutes not 15.

    I think the regulations are daft. Every bathroom is different and to try and regulate how many litres per minute and how long it should run for is daft. In hind sight and hind sight is easy before tiling my bathroom I should have insulated the outside walls better and may be put some heating in the walls to dry the tiles. One can see all interior walls are clear of mould but if window not opened after a shower do get some mould on outside walls. Clearly as left wet too long.

    Again in hind sight a myson radiator would have worked better in the bathroom need something to move the air around. But I find major problem is wife who will insist in closing the bathroom door. Leave the door open and you know when the room is free and it also dries out quicker. Landing where the door open out to is 41% humidity which is quite low really. So no real problem in my house letting water enter the other rooms.

    As to pressure it is dropping now at 1000 pa but how that alters mould build up in bathroom I don't know?
     
  5. DIYnot Local

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