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Pulsacoil set up for best use

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Post  djm99 Thu Apr 12, 2012 5:58 am

I have found your forum and it has proved extremely useful in helping me understand how things work. My son recently purchased a top floor flat built by Barratts in 2006. A PulsaCoil A class unit is installed. I was originally puzzled by the set up.

The flats do not appear to have an economy 7 meter, the one installed shows “Single Phase Watt Hour Meter” with a yellow sticker on it “Single rate”. Due to that it would appear that the heater is running constantly. Our requirement is for water for washing and showering of a weekday morning and a smaller quantity in the evenings, the weekends are less predictable with hot water needed late morning and afternoons when the washing machine also might get used once or twice, although not sure if that has a hot fill.

Any advice on the best use and configuration of the PulsaCoil will be appreciated.

From what I have read and understood I get the impression that getting a timer installed between the fused spur switch and the Pulsacoil, and set to come on twice a day may be the best option. It also appears that the timer may need an override option if water is needed outside the preset times.

Can you confirm that my understanding is correct and if it is not then the best alternative suggestions?

djm99

Posts : 2
Join date : 2012-04-12

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Post  mike Fri Apr 13, 2012 1:36 am

Hi
Have you the manual?
If not down load one for free from Gledhill.
That will give you all the options of wiring / connecting etc.
Mike
MGC/H2O
Norwich

mike

Posts : 1747
Join date : 2009-10-08
Age : 70
Location : Norwich

http://www.mgch20.co.uk

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Post  Ollie_247 Tue Apr 17, 2012 6:30 am

I also think my Girl friend has the same problem in her flat it seem to allways being heating the water.

I will look into this now.

Ollie_247

Posts : 2
Join date : 2012-04-17

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Post  djm99 Tue Apr 17, 2012 11:22 am

Thanks for the responses. I have downloaded a copy of the manual. I have also got a copy of the user instructions which do not offer any real help.

I’m afraid that having read the manual I am still no wiser as to the most efficient way to use the PulsaCoil in the circumstances that my son wants. The section in the manual that I understand applies says on page 12:

Wiring The Pulsacoil A-Class When Only An
On Peak Supply Is Available

With this arrangement the dwelling has no offpeak
tariff available. Because the appliance will
continuously sense the presence of a supply at
the bottom immersion heater (normally offpeak)
the controller will always use the bottom
immersion heater to charge the store and
boost will not be available unless the bottom
immersion heater fails.
To allow the appliance to operate successfully
with on peak only supplies, two separate 16A
230V 50Hz supplies MUST be provided with
one wired into the on peak connections in the
normal way and the other wired into the off
peak connections.
In all cases the two switches/isolators must be
clearly labelled for the householders use.

I find that this does not explain to me the most efficient way to use it, it does however tell me that the two switches should be clearly marked, there are 2 fuses in the fuse box marked IMM1 and IMM2 which I have identified with each switch..

My question is could/should a timer be fitted to the system to kid the system into thinking that it is an off peak supply or is this false economy and better left on all the time?

I never pretend to be a plumber or electrician, I would however call one in to do the job if I can establish the best way to use the PulsaCoil.

Many thanks for your help.

djm99

Posts : 2
Join date : 2012-04-12

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Post  mike Tue Apr 17, 2012 11:57 am

Right;
The best option would be E7 supply. Which you can ask your energy supplier for.
E 7 give you 7 hours at half price.
The bottom heater would be on E7.
The top heater ON peak (normal)
The top heater only heats up the top half or one third of the unit.
Where as the bottom heats the complete unit up.
Being a thermal store, it is better to have the unit fully charged with heat.
Ready to heat the hot water when demanded.
The water inside the thermal store is the same water from when the unit was filled.
Think of the unit as a battery. Charge it up fully for 7 hours on OFF peak ( although once the temperature has been reached it will switch off so may be only a few hours depending on the usage)
If you use the top heater only (ON peak) then the unit is only at the most half charged.
Remember these units are insulated inside so heat loss is minimal.
Mike
MGC/H2O
Norwich
Norfolk


mike

Posts : 1747
Join date : 2009-10-08
Age : 70
Location : Norwich

http://www.mgch20.co.uk

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Post  mike Tue Apr 17, 2012 12:02 pm

And just to add.
The A class has a boost button on the front (black)
So the unit is wired as in;
ON Peak supply which supplies the unit working as in ACB and pump drive etc.
And the black button for boost.

Next would be the OFF peak supply which goes just to the bottom heater.
Connected in the unit as per the book of course!
Mike
MGC/H2O
Norwich
Norfolk

mike

Posts : 1747
Join date : 2009-10-08
Age : 70
Location : Norwich

http://www.mgch20.co.uk

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