Unvented system - hot water not very hot.

[teecee90]

It was previously 500mm D1 maximum length to tundish, but recent years was changed to 600mm.
The instructions and regulations description and drawings can be a bit confusing I must admit.

This was the original wording: "..The tundish shall be located not more than 500mm horizontally from any valve discharging to it" which taken together with the diagram makes me think it was installed correctly at the time.

The wording has now changed to: "..with no more than 600mm of pipe between the valve outlet and the tundish"

 

[teecee90]

I am intrigued, how have you done that ?

With a pressure gauge on the shraeder valve on top of the vessel in the loft.

 

[townfanjon]

With a pressure gauge on the shraeder valve on top of the vessel in the loft.

So thats how you do it is it !!

 

[teecee90]

So thats how you do it is it !!

It's how I did it. Why, what have I done wrong?

 

[townfanjon]

It's how I did it. Why, what have I done wrong?

Cant say , its a secret

 

[teecee90]

Cant say , its a secret

That's helpful. Thanks for your contribution.

 

[ShaunCorbs]

Yea you done it wrong and will give a false reading

 

[townfanjon]

My contribution is very simple my friend , working on an unvented cylinder requires a qualification that we have to pay for , it maybe your cylinder but you are not qualified to work on it , do you touch your boiler when you are not qualified to work on it ? , I hope not

Thats why its a secret

 

[teecee90]

My contribution is very simple my friend , working on an unvented cylinder requires a qualification that we have to pay for , it maybe your cylinder but you are not qualified to work on it , do you touch your boiler when you are not qualified to work on it ? , I hope not

Thats why its a secret

Nice attitude....

 

[teecee90]

Yea you done it wrong and will give a false reading

All I said was that I had checked it was pressurised, not that the reading was correct. I checked it was pressurised the day before the engineer came to service it. He did go into the loft so I assume he checked the reading, although presumably he wouldn't have been able to get an entirely accurate reading himself with it still in situ?

Anyway, its obvious this thread isn't going anywhere so this will be my last post.