3 T rule hot water cylinder

[Old Account]

Hi I was wondering what does the 3 T rule mean when you install a hot water cylinder ? I'm guessing it has something to do with the pump : I mean where the pump has to be installed.

Looking forward for an answer as I have never heard about it before.

regards ronny

 

[Billy Bob Bob]

its not 3 t,the rule is last t piece on the return to go back to the boiler,that way rads wont warm up in other words no returns to rads dhw only on the last t back to the boiler

 

[Old Account]

Aight, appreciate mate thanks a lot.

Was just curious as I heard so often 3 T rule.

 

[AWheating]

http://heating.danfoss.co.uk/PCMPDF/Introducing Controls.pdf

 

[Old Account]

Thx a lot mate appreciate it a lot