Installing Kair MVHR help

azk404 · Post by **azk404** » Tue Jan 21, 2025 11:31 am

Hello

I want to install a Kair MVHR to help with humidity in the kitchen and want to run through a potential installation method please.

I have an inside dimmer switch (that can be changed to a permanently on module??) which leads to an outside junction box. Could I use that to power the fan and control box as per the diagram? I can also add a exterior fused spur between the junction box and fan/control unit.

Would that be acceptable?

https://www.kair.co.uk/product/kair-hea ... entilator/

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Cheers
E

Neelix · Post by **Neelix** » Tue Jan 21, 2025 1:53 pm

Do you have a neutral at the dimmer switch ?

What is the “control box” you refer to?

azk404 · Post by **azk404** » Tue Jan 21, 2025 3:07 pm

The control box is a humidity sensor that controls the fan and ideally it shout be place further away from the fan.

https://www.kair.co.uk/product/kair-hea ... entilator/

Yes there is a N.

The far left module is the one that leads outside.

I believe the right dimmer module I actually already made hard power a while back as that goes to a 2-gang plug above the fridge.

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Neelix · Post by **Neelix** » Tue Jan 21, 2025 5:09 pm

I very much doubt the power for that lot comes from a socket circuit

azk404 · Post by **azk404** » Tue Jan 21, 2025 8:18 pm

Ah thats not what I mean, that all comes from the mains box under the floor.

I have one of the modules powering a socket thats all.