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Replacement of Immersion

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Replacement of Immersion Empty Replacement of Immersion

Post  Mukul Jain Tue Nov 20, 2012 12:39 pm

Hi

I need to get both the peak and off peak immersion replaced for my Pulsacoil 2000 boiler.
Can someone please let me know if it is easy to replace it on our own or should we get it done by a specialist?

Also, any rough ideas on the charges so that I can negotiate accordingly with my local plumber.

Thanks

Mukul Jain

Posts : 17
Join date : 2010-10-09

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Replacement of Immersion Empty Re: Replacement of Immersion

Post  mike Wed Nov 21, 2012 2:43 pm

Yes Drain unit.
If the drain off is not blocked.
Remove heaters, Loosen before unit is empty.
May need to tap them with a hammer and chisel first to loosen.
Get the new heaters ready, fit them.
Connect them.
Fill unit and ensure no airlocks or leaks.
Bleed pump
Add 1 litre of inhibitor to every 100 litres of water in the unit or part of.
EG; 140 litres 1.4 litres.
EG 125 litres 1.2 litres
As for price shop around varies area to area.
Mike
MGC/H2O
Norfolk

mike

Posts : 1747
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Age : 70
Location : Norwich

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Replacement of Immersion Empty Re: Replacement of Immersion

Post  Mukul Jain Thu Nov 22, 2012 4:36 pm

Thanks for the reply Mike.

Couple of questions (might be very basic but just want to be clear):

I suppose the inhibitor is being used to protect against corrosion etc. Is it fine to purchase it from any local shop or should we go for Gledhill only as well for this?

Secondly, Removing water from the overhead tank is easy but how can I drain off the entire unit?

Any pointers will be really helpful.

Thanks again
Mukul

Mukul Jain

Posts : 17
Join date : 2010-10-09

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Post  mike Fri Nov 23, 2012 9:44 am

2 drain offs inside unit.
Do not drip onto pump though!
Heaters can be obtained from
http://shop.segel.co.uk/index.php?main_page=product_info&cPath=19_66_70&products_id=216.
Any plumbing shop, B &Q etc for the inhibitor
Mike
MGC/H2O
Norfolk

mike

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Replacement of Immersion Empty Re: Replacement of Immersion

Post  Mukul Jain Sat Nov 24, 2012 6:03 am

thanks Mike.
I have purchased the immersion now.

Next steps, once I drain down all the water from the unit, and replace the old immersion with the new one, how do I add the inhibitor with the water?
If I add it in the overhead tank, will that work, or do I need to add it via some other location.
Also, any other precautions we might need to take during the process.

Really appreciate all your help. I am doing this for the first time, hence so many basic questions.

cheers
Mukul

Mukul Jain

Posts : 17
Join date : 2010-10-09

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Replacement of Immersion Empty Re: Replacement of Immersion

Post  mike Sat Nov 24, 2012 6:14 am

Add it to the top tank when filling the unit.
After ensuring no leaks etc.
If not it will be wasted if draining down a 2nd time.
I do it all week. So it is easy for myself.
You have to read what I have told you.
And decide can you do it!
The correct heater?
Mike
MGC/H20
Norfolk

mike

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Replacement of Immersion Empty Re: Replacement of Immersion

Post  Mukul Jain Sat Nov 24, 2012 1:51 pm

yes, I have purchased the original parts.

I am planning to work on it tomorrow.
On some other post, you have mentioned that while draining off the unit, loosen the heaters first. Not sure what exactly we need to do for this, and if I just drain out all of the water, will that impact anything?

Just had another thought, is it possible that only the thermostat or the relay might have gone wrong in both the heaters and the immersion is actually working fine? Have you seen any such case?

Basically the problem I am having is that the water is not getting heated at all. One of the heaters / thermostat had gone bad couple of months back and the second one seems to have gone bad now. Since I do not have any off peak supply in my flat, I am not sure which one was working.

If this is a problem with thermostat, I should be able to just replace that without having the need to empty the entire unit and will save a lot of time and effort.
Let me know your thoughts?

Thanks
Mukul

Mukul Jain

Posts : 17
Join date : 2010-10-09

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Replacement of Immersion Empty You can replace thermostat without draining the system

Post  sunny.sahdev Wed Sep 11, 2013 5:18 am

Hi Mukul,

You can replace the thermostat rod without draining the system.

sunny.sahdev

Posts : 383
Join date : 2013-08-21
Age : 38
Location : Vedhas Limited, 960 Capability Green

http://www.vedhas.co.uk/vedhas-what-we-do/pulsacoil-repair/#

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