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Economy 7 Supply Control.

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Evnin' All,

                   at today's first job I came upon a strange thing, well for me anyway. A house has economy 7 storage heaters, no gas present. The Economy 7 supply is controlled by a loud buzzing contactor that makes a big bang when it operates. It is situated near to the meter but is controlled by a simple 24 hour time switch that might as easily control an immersion heater. The time switch can be altered by the house owner, as well as being manually turned on and off.


Why this arrangement, and not a proper Economy 7 timer switch or teleswitch.?


Z.

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  • 0
    The majority of Smart Meters do not have a contactor for switching the E7 supply. Teleswitches are no longer in favour, as notice has been given by Arqiva that they no longer wish to provide the extra carrier signal from Droitwich and the two repeater sites. What you need is a contactor that is connectable to the “HAN” network of the smart meter. This can be configured to switch the E7 supply at the correct times. In time, I expect that new night storage heaters will come with a HAN interface built in. 


    One of the great advantages of smart meters is that tariffs can be modified, and the meter swapped between credit and prepayment operation with an over-network instruction. The customer does not need a visit from the Meter Operator, and the Meter itself does not need changing. 


    Regards,


    Alan.
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  • 0
    The majority of Smart Meters do not have a contactor for switching the E7 supply. Teleswitches are no longer in favour, as notice has been given by Arqiva that they no longer wish to provide the extra carrier signal from Droitwich and the two repeater sites. What you need is a contactor that is connectable to the “HAN” network of the smart meter. This can be configured to switch the E7 supply at the correct times. In time, I expect that new night storage heaters will come with a HAN interface built in. 


    One of the great advantages of smart meters is that tariffs can be modified, and the meter swapped between credit and prepayment operation with an over-network instruction. The customer does not need a visit from the Meter Operator, and the Meter itself does not need changing. 


    Regards,


    Alan.
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