Discuss RUN BACK TIMER for E7 CIRCUIT in the Central Heating Systems area at ElectriciansForums.net

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J

Jabbajaws

Hi All,

Firstly this is information l need for an economy 7 immersion heater circuit. My mother has been experiencing power cuts, resulting in her digital timer control circuit, that powers the immersion heater re-setting itself to default factory settings. Because of this she was unaware the programming had changed and has recieved a £650 electric bill. I need to ensure that this doesn't happen again.

She has economy 7 type storage heaters, which seem to be independently controlled by a YEB supply e7 device. There are 6*15A BS3036 semi-enclosed fuses in the E7 CU, yet only 5 heaters, so im assuming the 6th is for a lower element in the immersion ( havent confirmed this yet ).

Am l right in thinking that a run back timer is a device that will prevent, let's say the immersion heater from being switched on during on peak hours, in case of control timer reset?

Or is it a device that will allow a maximum load usage, should the on peak mode be powered accidentally or in case of control timer reset, to keep consumer costs lower?

This is a grey area for me as l am inexperienced in this subject, but learning fast.

All advice appreciated...

JJ... :bucktooth:
 
For the immersion, I would have a look at a "maxistore" type controller which has a battery back up in case of power cuts, which keeps the time and programming in memory, I think Horstmann make them.
 

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