When are TMV's required by law?

[nines]

Can anyone clarify the regs regarding TMV’s please, in England, since 2010 they are required on new builds and refurbishments.
How would you define a refurbishment? If a suite is simply replaced like for like would it be a legal requirement?
Thank you

 

[Guest123]

Here's a link to the TMV website. All your legal questions can be answered there:

[DLMURL="http://www.beama.org.uk/en/energy/thermostatic-mixing-valves/"]Thermostatic Mixing Valves[/DLMURL]