Choice of intelligent switches ?

danesol

mickyduck wrote: »

I think it does brighten when on full power divert..... maybe its my old eyes playing up, that would explain how I missed the decimal point on my meter reading highlighted in response to another post of mine :rotfl:

Just so we are crystal here - your wiring should be as follows;

1. No change at CU ie. your fused spur for the immersion heater goes directly from the CU to the switch point within or near the airing cupboard where the HWC is ?

2. The wire which was connected PREVIOUSLY between this switched point and the immersion heater element is NOW wired to feed Solar Immersion ( SI ) device instead and left switched on 24 x 7 ?

3. New feed from SI device now feeds the HWC immersion element ??

mickyduck

Unlike your system mine is wired near the CU. so the feed to the immersion heater goes from the Immersun device through the original wiring / switch to the heater element. This switch is left in the on position.
The power for the Immersun is from the MCB in the CU that used to be connected to the Immersion heater.
I had thought that when there was no power being diverted through that circuit to the immersion heater the light on the switch would be off?
Anyway whatever it is doing I have plenty of hot water and am using only 3 units of electricity a day............... in fact today my import from the grid is zero.

Update: at 11 pm last night the indicator was still on at 3 am this morning it was off.

John_Pierpoint

A know it all qualified electrician will now explain the deadly effects of one wiring over the other ?
[By the way - "because the regulations say so" is funking this challenge]

danesol

mickyduck wrote: »

Unlike your system mine is wired near the CU. so the feed to the immersion heater goes from the Immersun device through the original wiring / switch to the heater element. This switch is left in the on position.
The power for the Immersun is from the MCB in the CU that used to be connected to the Immersion heater.
I had thought that when there was no power being diverted through that circuit to the immersion heater the light on the switch would be off?
Anyway whatever it is doing I have plenty of hot water and am using only 3 units of electricity a day............... in fact today my import from the grid is zero.

Update: at 11 pm last night the indicator was still on at 3 am this morning it was off.

That sounds fine - if this is possible with Immersun wiring internally on the connector block? - please ensure you have connected the immersion heater element spur ( wiring to your airing cupboard ) to the proportional supply and not another live supply etc ???

AS this is possible on other units .............

hth

fionaflute

Have had solar immersion III installed a few months ago, and well it sort of works but im wondering if its either not been installed properly or its just not very good.
We have a small pv system of 1.1kw and a boiler pellet stove with thermal store.
The idea was to have solar immersion installed to utilise the excess electric to heat our hoy water in the summer months.
Well, it is heating the water but weirdly when I run the shower it starts off boiling hot and then within 2 minutes it very rapidly gets cold. This is the even stranger bit - if I wait a couple of minutes and turn the shower back on the water is again hot but only again for about 2 minutes then gets rapidly cold.
What is going wrong? did this solar immersion switch get put in right? im wondering should there be some adjustment in the thermal store?
Finally - why does my solar immersion switch clock keep going out of time - ive changed it several times and within days the clock is wrong by a few hours.???????

sly_dog_jonah

fionaflute wrote: »

Have had solar immersion III installed a few months ago, and well it sort of works but im wondering if its either not been installed properly or its just not very good.
We have a small pv system of 1.1kw and a boiler pellet stove with thermal store.
The idea was to have solar immersion installed to utilise the excess electric to heat our hoy water in the summer months.
Well, it is heating the water but weirdly when I run the shower it starts off boiling hot and then within 2 minutes it very rapidly gets cold. This is the even stranger bit - if I wait a couple of minutes and turn the shower back on the water is again hot but only again for about 2 minutes then gets rapidly cold.
What is going wrong? did this solar immersion switch get put in right? im wondering should there be some adjustment in the thermal store?
Finally - why does my solar immersion switch clock keep going out of time - ive changed it several times and within days the clock is wrong by a few hours.???????

Is your immersion element at the top or bottom of the cylinder? If the former you may need a destratification pump to circulate the water.

fionaflute

sly_dog_jonah wrote: »

Is your immersion element at the top or bottom of the cylinder? If the former you may need a destratification pump to circulate the water.

Thanks Sly dog Jonah!
I have emailed my thermal store installer to ask, and am awaiting response.
Don't suppose you know approx. how much a destratification pump would cost to install approx. and can any plumber install it or do you think its best if I get the people who installed the thermal store in the first place to come and do it?

sly_dog_jonah

fionaflute wrote: »

Thanks Sly dog Jonah!
I have emailed my thermal store installer to ask, and am awaiting response.
Don't suppose you know approx. how much a destratification pump would cost to install approx. and can any plumber install it or do you think its best if I get the people who installed the thermal store in the first place to come and do it?

I'm afraid I've no idea - googling might be the answer for the thermal store's type or model number? I may of course have been wrong in my previous response!

EricMears

sly_dog_jonah wrote: »

I'm afraid I've no idea - googling might be the answer for the thermal store's type or model number? I may of course have been wrong in my previous response!

I would have thought a simple central heating pump would have done the job. A quick search on B&Q and Wickes suggested that would cost around £80 but I'm sure you could do better than that. I would consider fitting one to be a DIY job but a couple of hours work by a plumber might push that up to £150

The_Debt_Monkey

I am looking at fitting a solarimmersion III switch to my system which is a 2.9kw system.

My question is i have a standard 3KW immersion heater in my hotwater tank. The solarimmersion websit says that with this switch there is no requirement to change my element. Is this correct? What has everyone else done? I was under the impression i'd need to change the element to a 1KW one?

Thanks in advance
Regards
Jon