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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.
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    mapj1:

    I re-iterate the papers and the kit do not match, we should not trust either at this stage. It may be that the no of SSRs was higher as the intention was to use some sort of always-on central 3 phase transformer, and secondary side switching, and given the no, of disparate secondary voltages involved, then there have to be that many switches,

    Clearly, like the rest of it, for a UK single phase supply, that is not going to work. . . 


    . . . It pains me to say it, but are you looking at legal routes/insurance to recover any of the loss on this ?




    I would have to agree with Mike - it does look like you have been “sold a pup” and only have a small percentage of what you actually need. Hopefully you have only paid for no more than you actually have. 


    The system as designed would appear to need a three phase supply, which you clearly haven’t got. Your supply from Scottish Power is likely to be no more than 80A. You said you have underfloor heating, with the architect’s drawing suggesting the is via an electric boiler. If this is the case, you are likely to have no spare capacity for cooking or an electric shower etc. The transformer you have sent the picture of appears to have a rating of 250VA and is clearly not up to the job. 


    You do at least have separate cables to each window position, so it may be salvageable, but before you move on, you need a thorough assessment of how much you have spent to date, along with a trues assessment of what you need to spend to resolve all the issues. You also need an independent survey of the design to resolve which of your drawings (if any) are correct, and indeed whether the system once completed will fulfil your requirements when you have finished spending money on it. 


    Regards,


    Alan. 

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  • 0

    mapj1:

    I re-iterate the papers and the kit do not match, we should not trust either at this stage. It may be that the no of SSRs was higher as the intention was to use some sort of always-on central 3 phase transformer, and secondary side switching, and given the no, of disparate secondary voltages involved, then there have to be that many switches,

    Clearly, like the rest of it, for a UK single phase supply, that is not going to work. . . 


    . . . It pains me to say it, but are you looking at legal routes/insurance to recover any of the loss on this ?




    I would have to agree with Mike - it does look like you have been “sold a pup” and only have a small percentage of what you actually need. Hopefully you have only paid for no more than you actually have. 


    The system as designed would appear to need a three phase supply, which you clearly haven’t got. Your supply from Scottish Power is likely to be no more than 80A. You said you have underfloor heating, with the architect’s drawing suggesting the is via an electric boiler. If this is the case, you are likely to have no spare capacity for cooking or an electric shower etc. The transformer you have sent the picture of appears to have a rating of 250VA and is clearly not up to the job. 


    You do at least have separate cables to each window position, so it may be salvageable, but before you move on, you need a thorough assessment of how much you have spent to date, along with a trues assessment of what you need to spend to resolve all the issues. You also need an independent survey of the design to resolve which of your drawings (if any) are correct, and indeed whether the system once completed will fulfil your requirements when you have finished spending money on it. 


    Regards,


    Alan. 

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