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Help with installation / diagram

Former Community Member
Former Community Member
Hi,


I am after some help with a heated windows installation / diagram - grateful for any input.

Unfortunately, the company supplying the installion went bust and I have been left with a system that doesn't  work (incorrectly designed).

We had a local electrician do the first fix wiring based on the diagrams but he says what has been sent won't work in it's current state and he doesn't have the relevant expertise to adjust it.

We live in a rural area and electricians are not that common especially for something as complex as this.

Rather than post up the diagrams and go into too much detail initially, I just wanted to know if this is a place to ask for advice and if not could anyone point me in the right direction. e.g contact details for an electrical engineer.


Thanks.
Parents
  • 0
    If you know the type of the NTC sensors actually fitted or can measure them, then there may be hope of using them, at least as a simple overheat cut-off with a normal room stat in series for room temp control.

    With the right combinations of resistors the common NTC sensors can be configured to generate a voltage linear versus temperature over a respectable range perhaps 10-30 degrees with a bit of an S shape outside that - but that does not really matter that much for operation.

    (what you need is sensor resistance readings at a few temperatures, then a bit of curve fitting mathematics, which I can help with )
Reply
  • 0
    If you know the type of the NTC sensors actually fitted or can measure them, then there may be hope of using them, at least as a simple overheat cut-off with a normal room stat in series for room temp control.

    With the right combinations of resistors the common NTC sensors can be configured to generate a voltage linear versus temperature over a respectable range perhaps 10-30 degrees with a bit of an S shape outside that - but that does not really matter that much for operation.

    (what you need is sensor resistance readings at a few temperatures, then a bit of curve fitting mathematics, which I can help with )
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