Pressurised hot water system

[beerboy]

Ive been asked to replace a faulty element in a pressurised system and have no experience with domestic . That being said ive spent over 25 years repairing pressurised commercial catering equipment using steam,gas and electric.
Does this method seem correct.
Isolate electrics and water,run hot water to reduce pressure and then drain the tank.
Replace the element and leave electrics off , turn the water back on and run all hot water taps to ensure flow, once water is present reconnect the electrics and test system.

Thanks in advance

 

[CountryFan]

If you’re not G3 registered then you might not be able to work on it.

 

[beerboy]

Thanks will check out there requirements

 

[beerboy]

Found this

 

[Razor900]

Officially you should be qualified.

Mind you a qualified person would do it pretty much exactly as you said although they would check the expansion vessel as well if its external...

 

[beerboy]

Is that a visual inspection or a test nipple that needs the pressure checking.