Solar sensitive controls

[Liam Norman]

Hi All,

I have a client who wants to know if I can supply controls that will turn on the electric coil in her immersion heater only when her PV system is generating. Whilst I know a controls engineer who could make something up for me it seems a bit OTT to bring him in on a domestic job. Other than connecting her normal immersion switch to a photocell I can't think of an 'off the shelf' option. Obviously the photocell would be a poor choice as it would only react to the lux level, which mightn't mean that the PV system is generating (particularly if it became faulty). So really I need an 'in-line' device of some sort. Any ideas?

Best regards,

Liam

 

[TonyL]

Hi All,

I have a client who wants to know if I can supply controls that will turn on the electric coil in her immersion heater only when her PV system is generating. Whilst I know a controls engineer who could make something up for me it seems a bit OTT to bring him in on a domestic job. Other than connecting her normal immersion switch to a photocell I can't think of an 'off the shelf' option. Obviously the photocell would be a poor choice as it would only react to the lux level, which mightn't mean that the PV system is generating (particularly if it became faulty). So really I need an 'in-line' device of some sort. Any ideas?

Best regards,

Liam

It's on another thread here http://www.electriciansforums.net/central-heating-systems/23969-immersion-heater-pv-electricity.html

 

[Liam Norman]

How didn't I see that? Thanks Tony

 

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