Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 7 replies
  • Subscribers 32 subscribers
  • Views 745 views
  • Users 0 members are here
Options
You may also be interested in
This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

Humidistat controlled fans

whjohnson
Fitted a 100mm SELV Xpelair Silavent fan a month or two ago. Client says it is running all the time. I said I think it is designed to do so but am now not so sure.

I thought initially that the fan would sit there awaiting a rise in hunidity before kicking in and doing its thing until the levels returned to below the humidistat trigger threshold, then I looked again and it seems that the fan runs all the time on a slow speed until a higher humidity level triggers the sensor and then the fan speeds up.

She's annoyed with the noise of the fan running all the time and is switching it off at the isolator until needed.

So, just how are these things supposed to actually work?
Parents
  • 0
    Am now led to understand that fitting humidistat controlled fans in the UK is not necessarily a good idea

    Humidistats can work perfectly well in the UK - I used to have one in my old bathroom and it kicked in most reliably every time I had a shower (that was a stand-alone humidistat I think from RS - rather than anything built into a fan). In my 'new' house the ventilation system runs at a low level constantly but the main fan unit has a humidistat built in so to boost the speed - and again that seems to work perfectly well.


       - Andy.
Reply
  • 0
    Am now led to understand that fitting humidistat controlled fans in the UK is not necessarily a good idea

    Humidistats can work perfectly well in the UK - I used to have one in my old bathroom and it kicked in most reliably every time I had a shower (that was a stand-alone humidistat I think from RS - rather than anything built into a fan). In my 'new' house the ventilation system runs at a low level constantly but the main fan unit has a humidistat built in so to boost the speed - and again that seems to work perfectly well.


       - Andy.
Children
No Data

Join us to get the best from IET EngX.

Joining EngX lets you personalise your experience so you stay up to date on the topics that interest you, plus you’ll be able to make connections who are looking to collaborate, exchange ideas and more.

Join us Not now

Community Rules & Guidelines