Can't get my head round a TMV in reverse!!!

[sunnday]

Hello

Reading some posts, some people sometimes use a TMV 'in reverse' to 'wire' a system to combi's.  I can't get my head round that one. Can anyone explain?  I can understand HOT in, COLD in, MIX out, but how does the thing work, feeding hot into the mix? What comes out of the Hot/Cold???

Please free to say if I'm being completely stupid 

Thanks


Confused

[dhaslam]

They just open  all ways when  the set temperature is reached.   Normally this lets cold water into the  mix.   Mine was installed without a  one way valve so  if  it opens hot water comes out of the cold taps.     To feed warm water to a combi you need two.       One feeds  hot water  to   the taps if it is hot enough     i.e.   works like my hot cold taps,  otherwise it just goes to the combi feed,  the second one  mixes the water down to the  max feed temperature for  the combi.     The output from the combi has to  join the original flow to the taps  with non return valves on both supplies at the point of intersection.       There is a commercial version of the system called the Combisol. 

[Brandon]

as do ESBE

[sunnday]

Great. Thanks.

I think I understand now!

Sunnday

[mistadave]

Sorry for old thread digging (again) but if it is fine to use TMV in reverse as a diverter valve, why is it that esbe produce specific thermostatic diverting valves with non adjustable diverting temperatures?

[dimengineer]

Damn - and there was I hoping that a reverse TMV would split warm water into cold and hot - now that would be something!! 

[baker]

Hi
its not that bad
a designed water source heat pump will split warm water into  hot and cold
baker