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Topic Title: Element change in a pressurised HW system.
Topic Summary: Any special precautions.
Created On: 24 August 2012 07:50 PM
Status: Post and Reply
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 24 August 2012 07:50 PM
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breaker

Posts: 280
Joined: 05 October 2006

Hi

The title of the post says it all are there any special precautions or routines to adhere to?

Thanks
 24 August 2012 07:56 PM
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Grumpy

Posts: 405
Joined: 09 January 2009

Do you mean a standard domestic unvented cylinder? If so, then no. Turn off the cold feed to the cylinder, open some hot taps, stick a hose on the drain off cock (which will operate seamlessly and definitely won't be stuck closed) open the t&p relief valve to let the air in and away you go.
 26 August 2012 07:46 PM
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aligarjon

Posts: 2802
Joined: 09 September 2005

i would recommend loosening the element before you drain the tank.

Gary

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Specialised Subject. The Bleedin Obvious. John Cleese
 27 August 2012 03:25 PM
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baldelectrician

Posts: 311
Joined: 11 June 2005

You need a ticket to work on uvented cylinders, most plumbers run a mile as the possible repercusstions if something were to go wrong are grim

http://www.youtube.com/watch?v...a60Ypg&feature=related

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