HHR Storage Heaters - Dimplex Quantum etc

coffeehound

From the 'net, it looks that the 100A LED indicates the off-peak period as that is when the contactor is closed

Gerry1

It should all be straightforward.

Your Quantum is probably connected to the 5th terminal (fat brown cable on the right) which will be the switched E7 supply.

If your electrician rewires it to the 4th terminal (24h) and you program the Quantum correctly then all should be well.

But do take great care that you know your meter's exact switching times and that you are familiar with the Quantum's programming !

OffshoreKiteFlyer

Reed_Richards said:

OffshoreKiteFlyer said:

Yep that's T and there are P1 and P2 when you cycle through... also day and time

And (sanity check) P1 + P2 = T ?

yes...

OffshoreKiteFlyer

Gerry1 said:

It should all be straightforward.

Your Quantum is probably connected to the 5th terminal (fat brown cable on the right) which will be the switched E7 supply.

If your electrician rewires it to the 4th terminal (24h) and you program the Quantum correctly then all should be well.

But do take great care that you know your meter's exact switching times and that you are familiar with the Quantum's programming !

I have phoned this morning and the person on the other end said... "Economy 7 let me check the gate on your meter" "11pm to 6am" and the 24hr gets the night rate during those times... 

OffshoreKiteFlyer

coffeehound said:

From the 'net, it looks that the 100A LED indicates the off-peak period as that is when the contactor is closed

Thanks - Need to set the alarm to look see... 

EssexHebridean

Definitely worth staying up to check that timing - it may be right, but electric companies aren’t always the best at knowing when E7 rates apply so… 😆 You might hear a distinct click as it switches over, otherwise though watch the LED in the switched spur for either the storage heater or immersion - it should illuminate when the power switches over to it. 

Remember too - when the clocks change in March the timing will change by an hour! 

OffshoreKiteFlyer

@EssexHebridean @Gerry1 thanks for the advice here... we now have four Quantums working well... and a bit of a plus from the electric supplier in June this year when they admitted the original E7 meter (inherited with the house) was incorrectly charging us and they wrote one of the zones off and installed a new meter... it was a year of complaining and a lot of heartache! 

However that is behind and we have got a Dimplex hub and the app... what I'd like to know is there a way of switching them off via the app so they are not drawing juice from the grid? My basic understanding is that frost and away just reduce the draw from the grid or is that incorrect? 

Thanks in advance 

Gerry1

I've never had a Quantum so @EssexHebridean will be more knowledgeable.

However, if you tell the units that you are away and only want frost protection then I'd expect the standby consumption to be negligible, only enough to power the programmer, a bit like a TV on standby.

As with anything clever and automated, it crucial to understand how the system works and that everything is correctly programmed, especially if operated from a single 24-hour supply.  Mistakes can be expensive, e.g. if it turns out that a unit is charging at daytime rates or the 'real-time' auxiliary heater is doing much of the hard work !

OffshoreKiteFlyer

Gerry1 said:

I've never had a Quantum so @EssexHebridean will be more knowledgeable.

However, if you tell the units that you are away and only want frost protection then I'd expect the standby consumption to be negligible, only enough to power the programmer, a bit like a TV on standby.

As with anything clever and automated, it crucial to understand how the system works and that everything is correctly programmed, especially if operated from a single 24-hour supply.  Mistakes can be expensive, e.g. if it turns out that a unit is charging at daytime rates or the 'real-time' auxiliary heater is doing much of the hard work !

Thanks for your response... The units have been programmed for 5 off peak hours... which is great... I just want to ensure that if I'm away working the draw isn't 5 hrs a night that I'm away

worlestone

We don't have Quantum heaters just yet, though that is in our longer term plan.  However, it's interesting to note that with our app from Scottish Electric we can monitor half hourly usage and can see that virtually all the charge is in the first 3 hours each night, between 12:30 and 3:30, then dropping off significantly.  In which case has me wondering whether we could use the clever low usage (agile ?) to charge when it was cheapest?