[OpenTRV-dev] OpenTRV-dev Digest, Vol 11, Issue 22
Damon Hart-Davis
EMAIL ADDRESS HIDDEN
Wed Jan 29 20:56:12 GMT 2014
I think that Stuart’s solution almost certainly nails it.
I have ordered several to test.
Rgds
Damon
On 29 Jan 2014, at 20:47, Mark Hill <EMAIL ADDRESS HIDDEN> wrote:
> Hi Damon
>
> Here's the veroboard version:
>
> http://www.susa.net/wordpress/2012/06/raspberry-pi-relay-using-gpio/
>
> I'd guess you have suitable transistors, a diode, resistor. Then you'd only need to source the 5V 240AC relay but unfortunately Maplin doesn't appear to have one. Think that Stuart's suggestion is probably a better bet.
>
> M
>
>
> On 29 January 2014 19:38, <EMAIL ADDRESS HIDDEN> wrote:
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> Today's Topics:
>
> 1. Vaillant boiler issue (Damon Hart-Davis)
> 2. Re: Vaillant boiler issue (Stuart Poulton)
> 3. Re: Vaillant boiler issue (Damon Hart-Davis)
> 4. Re: Vaillant boiler issue (Stuart Poulton)
> 5. Re: Vaillant boiler issue (Damon Hart-Davis)
> 6. Re: Vaillant boiler issue (Stuart Poulton)
>
>
> ---------- Forwarded message ----------
> From: Damon Hart-Davis <EMAIL ADDRESS HIDDEN>
> To: Closed list for developer discussions <EMAIL ADDRESS HIDDEN>
> Cc:
> Date: Wed, 29 Jan 2014 17:15:02 +0000
> Subject: [OpenTRV-dev] Vaillant boiler issue
> Hi,
>
> Had a chat with Vaillent tech support this afternoon and the newer models of the ecoTEC plus 837 are different to the old in that the new one is not presenting a real load 240V, ie is fairly high impedance purely for sensing, and thus will probably NOT work property with an SSR (or indeed anything self-powered for a start).
>
> So, I have to find an alternative solution that should work for the problematic install. It might even have to be a little logic relay board.
>
> Small neat efficent 240VAC/DC 3V-in relay modules (mains powered) that I can sling in one of our SSR boxes (for example) would be welcome, and can then be used as an alternative in any similar situation. We should see what OEM is using.
>
> Rgds
>
> Damon
>
>
>
>
>
> ---------- Forwarded message ----------
> From: Stuart Poulton <EMAIL ADDRESS HIDDEN>
> To: Closed list for developer discussions <EMAIL ADDRESS HIDDEN>
> Cc:
> Date: Wed, 29 Jan 2014 17:34:00 +0000
> Subject: Re: [OpenTRV-dev] Vaillant boiler issue
> How about this from a nice UK based company
>
> http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/
>
> Stuart
>
> On 29 Jan 2014, at 17:15, Damon Hart-Davis wrote:
>
>> Hi,
>>
>> Had a chat with Vaillent tech support this afternoon and the newer models of the ecoTEC plus 837 are different to the old in that the new one is not presenting a real load 240V, ie is fairly high impedance purely for sensing, and thus will probably NOT work property with an SSR (or indeed anything self-powered for a start).
>>
>> So, I have to find an alternative solution that should work for the problematic install. It might even have to be a little logic relay board.
>>
>> Small neat efficent 240VAC/DC 3V-in relay modules (mains powered) that I can sling in one of our SSR boxes (for example) would be welcome, and can then be used as an alternative in any similar situation. We should see what OEM is using.
>>
>> Rgds
>>
>> Damon
>>
>>
>> _______________________________________________
>> OpenTRV-dev mailing list
>> EMAIL ADDRESS HIDDEN
>> http://lists.opentrv.org.uk/listinfo/opentrv-dev
>
>
>
> ---------- Forwarded message ----------
> From: Damon Hart-Davis <EMAIL ADDRESS HIDDEN>
> To: Closed list for developer discussions <EMAIL ADDRESS HIDDEN>
> Cc:
> Date: Wed, 29 Jan 2014 18:29:49 +0000
> Subject: Re: [OpenTRV-dev] Vaillant boiler issue
> That’s definitely on the right lines, thanks!
>
> Though I’d prefer not to have to assemble anything (time is pretty tight) or have another power supply, though again that can probably be worked around.
>
> Thanks again!
>
> Rgds
>
> Damon
>
> On 29 Jan 2014, at 17:34, Stuart Poulton <EMAIL ADDRESS HIDDEN> wrote:
>
> > How about this from a nice UK based company
> >
> > http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/
> >
> > Stuart
> >
> > On 29 Jan 2014, at 17:15, Damon Hart-Davis wrote:
> >
> >> Hi,
> >>
> >> Had a chat with Vaillent tech support this afternoon and the newer models of the ecoTEC plus 837 are different to the old in that the new one is not presenting a real load 240V, ie is fairly high impedance purely for sensing, and thus will probably NOT work property with an SSR (or indeed anything self-powered for a start).
> >>
> >> So, I have to find an alternative solution that should work for the problematic install. It might even have to be a little logic relay board.
> >>
> >> Small neat efficent 240VAC/DC 3V-in relay modules (mains powered) that I can sling in one of our SSR boxes (for example) would be welcome, and can then be used as an alternative in any similar situation. We should see what OEM is using.
> >>
> >> Rgds
> >>
> >> Damon
> >>
> >>
> >> _______________________________________________
> >> OpenTRV-dev mailing list
> >> EMAIL ADDRESS HIDDEN
> >> http://lists.opentrv.org.uk/listinfo/opentrv-dev
> >
> > _______________________________________________
> > OpenTRV-dev mailing list
> > EMAIL ADDRESS HIDDEN
> > http://lists.opentrv.org.uk/listinfo/opentrv-dev
>
>
>
>
> ---------- Forwarded message ----------
> From: Stuart Poulton <EMAIL ADDRESS HIDDEN>
> To: Closed list for developer discussions <EMAIL ADDRESS HIDDEN>
> Cc:
> Date: Wed, 29 Jan 2014 18:33:24 +0000
> Subject: Re: [OpenTRV-dev] Vaillant boiler issue
> Damon,
>
> Why do you need an additional PSU ?
>
> I'm happy to pitch in and solder them together, just get ciseco to ship them to me :) I'll ship them to you, how many are you talking ?
>
> Stuart
>
>
> On 29 Jan 2014, at 18:29, Damon Hart-Davis wrote:
>
> > That’s definitely on the right lines, thanks!
> >
> > Though I’d prefer not to have to assemble anything (time is pretty tight) or have another power supply, though again that can probably be worked around.
> >
> > Thanks again!
> >
> > Rgds
> >
> > Damon
> >
> > On 29 Jan 2014, at 17:34, Stuart Poulton <EMAIL ADDRESS HIDDEN> wrote:
> >
> >> How about this from a nice UK based company
> >>
> >> http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/
> >>
> >> Stuart
> >>
> >> On 29 Jan 2014, at 17:15, Damon Hart-Davis wrote:
> >>
> >>> Hi,
> >>>
> >>> Had a chat with Vaillent tech support this afternoon and the newer models of the ecoTEC plus 837 are different to the old in that the new one is not presenting a real load 240V, ie is fairly high impedance purely for sensing, and thus will probably NOT work property with an SSR (or indeed anything self-powered for a start).
> >>>
> >>> So, I have to find an alternative solution that should work for the problematic install. It might even have to be a little logic relay board.
> >>>
> >>> Small neat efficent 240VAC/DC 3V-in relay modules (mains powered) that I can sling in one of our SSR boxes (for example) would be welcome, and can then be used as an alternative in any similar situation. We should see what OEM is using.
> >>>
> >>> Rgds
> >>>
> >>> Damon
> >>>
> >>>
> >>> _______________________________________________
> >>> OpenTRV-dev mailing list
> >>> EMAIL ADDRESS HIDDEN
> >>> http://lists.opentrv.org.uk/listinfo/opentrv-dev
> >>
> >> _______________________________________________
> >> OpenTRV-dev mailing list
> >> EMAIL ADDRESS HIDDEN
> >> http://lists.opentrv.org.uk/listinfo/opentrv-dev
> >
> > _______________________________________________
> > OpenTRV-dev mailing list
> > EMAIL ADDRESS HIDDEN
> > http://lists.opentrv.org.uk/listinfo/opentrv-dev
>
>
>
>
> ---------- Forwarded message ----------
> From: Damon Hart-Davis <EMAIL ADDRESS HIDDEN>
> To: Closed list for developer discussions <EMAIL ADDRESS HIDDEN>
> Cc:
> Date: Wed, 29 Jan 2014 18:54:43 +0000
> Subject: Re: [OpenTRV-dev] Vaillant boiler issue
> Hi,
>
> I really need to try to get one done on Monday-ish and have one in reserve, and I’m in Brussels at FOSDEM all weekend.
>
> The board needs a 12V supply. I may not have a suitable one to hand, so I’ll need to get one, attach to the householder’s rather crowded wall, and plug in, such a supply. More mess and complication!
>
> Anyhow I’ll try to order a couple of these boards now and sort the rest as a I can.
>
> Rgds
>
> Damon
>
>
> On 29 Jan 2014, at 18:33, Stuart Poulton <EMAIL ADDRESS HIDDEN> wrote:
>
> > Damon,
> >
> > Why do you need an additional PSU ?
> >
> > I'm happy to pitch in and solder them together, just get ciseco to ship them to me :) I'll ship them to you, how many are you talking ?
> >
> > Stuart
> >
> >
> > On 29 Jan 2014, at 18:29, Damon Hart-Davis wrote:
> >
> >> That’s definitely on the right lines, thanks!
> >>
> >> Though I’d prefer not to have to assemble anything (time is pretty tight) or have another power supply, though again that can probably be worked around.
> >>
> >> Thanks again!
> >>
> >> Rgds
> >>
> >> Damon
> >>
> >> On 29 Jan 2014, at 17:34, Stuart Poulton <EMAIL ADDRESS HIDDEN> wrote:
> >>
> >>> How about this from a nice UK based company
> >>>
> >>> http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/
> >>>
> >>> Stuart
> >>>
> >>> On 29 Jan 2014, at 17:15, Damon Hart-Davis wrote:
> >>>
> >>>> Hi,
> >>>>
> >>>> Had a chat with Vaillent tech support this afternoon and the newer models of the ecoTEC plus 837 are different to the old in that the new one is not presenting a real load 240V, ie is fairly high impedance purely for sensing, and thus will probably NOT work property with an SSR (or indeed anything self-powered for a start).
> >>>>
> >>>> So, I have to find an alternative solution that should work for the problematic install. It might even have to be a little logic relay board.
> >>>>
> >>>> Small neat efficent 240VAC/DC 3V-in relay modules (mains powered) that I can sling in one of our SSR boxes (for example) would be welcome, and can then be used as an alternative in any similar situation. We should see what OEM is using.
> >>>>
> >>>> Rgds
> >>>>
> >>>> Damon
> >>>>
> >>>>
> >>>> _______________________________________________
> >>>> OpenTRV-dev mailing list
> >>>> EMAIL ADDRESS HIDDEN
> >>>> http://lists.opentrv.org.uk/listinfo/opentrv-dev
> >>>
> >>> _______________________________________________
> >>> OpenTRV-dev mailing list
> >>> EMAIL ADDRESS HIDDEN
> >>> http://lists.opentrv.org.uk/listinfo/opentrv-dev
> >>
> >> _______________________________________________
> >> OpenTRV-dev mailing list
> >> EMAIL ADDRESS HIDDEN
> >> http://lists.opentrv.org.uk/listinfo/opentrv-dev
> >
> > _______________________________________________
> > OpenTRV-dev mailing list
> > EMAIL ADDRESS HIDDEN
> > http://lists.opentrv.org.uk/listinfo/opentrv-dev
> >
>
>
>
>
> ---------- Forwarded message ----------
> From: Stuart Poulton <EMAIL ADDRESS HIDDEN>
> To: Closed list for developer discussions <EMAIL ADDRESS HIDDEN>
> Cc:
> Date: Wed, 29 Jan 2014 19:37:59 +0000
> Subject: Re: [OpenTRV-dev] Vaillant boiler issue
> Ok.
>
> Sorry missed the 12v bit try these
>
> http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-3v-operation-supports-logic-level-also/
>
> Stuart
>
> On 29 Jan 2014, at 18:54, Damon Hart-Davis wrote:
>
>> Hi,
>>
>> I really need to try to get one done on Monday-ish and have one in reserve, and I’m in Brussels at FOSDEM all weekend.
>>
>> The board needs a 12V supply. I may not have a suitable one to hand, so I’ll need to get one, attach to the householder’s rather crowded wall, and plug in, such a supply. More mess and complication!
>>
>> Anyhow I’ll try to order a couple of these boards now and sort the rest as a I can.
>>
>> Rgds
>>
>> Damon
>>
>>
>> On 29 Jan 2014, at 18:33, Stuart Poulton <EMAIL ADDRESS HIDDEN> wrote:
>>
>>> Damon,
>>>
>>> Why do you need an additional PSU ?
>>>
>>> I'm happy to pitch in and solder them together, just get ciseco to ship them to me :) I'll ship them to you, how many are you talking ?
>>>
>>> Stuart
>>>
>>>
>>> On 29 Jan 2014, at 18:29, Damon Hart-Davis wrote:
>>>
>>>> That’s definitely on the right lines, thanks!
>>>>
>>>> Though I’d prefer not to have to assemble anything (time is pretty tight) or have another power supply, though again that can probably be worked around.
>>>>
>>>> Thanks again!
>>>>
>>>> Rgds
>>>>
>>>> Damon
>>>>
>>>> On 29 Jan 2014, at 17:34, Stuart Poulton <EMAIL ADDRESS HIDDEN> wrote:
>>>>
>>>>> How about this from a nice UK based company
>>>>>
>>>>> http://shop.ciseco.co.uk/kit-relay-board-simple-to-use-12v-operation-supports-logic-level-also-10amp/
>>>>>
>>>>> Stuart
>>>>>
>>>>> On 29 Jan 2014, at 17:15, Damon Hart-Davis wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> Had a chat with Vaillent tech support this afternoon and the newer models of the ecoTEC plus 837 are different to the old in that the new one is not presenting a real load 240V, ie is fairly high impedance purely for sensing, and thus will probably NOT work property with an SSR (or indeed anything self-powered for a start).
>>>>>>
>>>>>> So, I have to find an alternative solution that should work for the problematic install. It might even have to be a little logic relay board.
>>>>>>
>>>>>> Small neat efficent 240VAC/DC 3V-in relay modules (mains powered) that I can sling in one of our SSR boxes (for example) would be welcome, and can then be used as an alternative in any similar situation. We should see what OEM is using.
>>>>>>
>>>>>> Rgds
>>>>>>
>>>>>> Damon
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> OpenTRV-dev mailing list
>>>>>> EMAIL ADDRESS HIDDEN
>>>>>> http://lists.opentrv.org.uk/listinfo/opentrv-dev
>>>>>
>>>>> _______________________________________________
>>>>> OpenTRV-dev mailing list
>>>>> EMAIL ADDRESS HIDDEN
>>>>> http://lists.opentrv.org.uk/listinfo/opentrv-dev
>>>>
>>>> _______________________________________________
>>>> OpenTRV-dev mailing list
>>>> EMAIL ADDRESS HIDDEN
>>>> http://lists.opentrv.org.uk/listinfo/opentrv-dev
>>>
>>> _______________________________________________
>>> OpenTRV-dev mailing list
>>> EMAIL ADDRESS HIDDEN
>>> http://lists.opentrv.org.uk/listinfo/opentrv-dev
>>>
>>
>> _______________________________________________
>> OpenTRV-dev mailing list
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>> http://lists.opentrv.org.uk/listinfo/opentrv-dev
>
>
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