From the United States of America? - Checkout our specific plumbing forum for you:USA Plumbing Forum

Discuss Help me understand the specifications of an UFH mixing group in the Water Underfloor Heating Installations area at PlumbersForums.net

Hello everyone,

I have installed in my house an UFH system that consists of:
  • Condensing boiler
  • Hydraulic separator 4.5m3/hr
  • UFH mixing group - TECEfloor – 7745 00 00
  • Manifold TECEfloor – 7731 00 xx

The circuits are laid as follows:
Zone 1
  • 3 circuits 80m each
  • 10 cm spacing
Zone 2
  • 1 circuit 85m
  • 1 circuit 96m
  • 10 cm spacing
Zone 3
  • 1 circuit 100m
  • 10 cm spacing
Zone 4
  • 1 circuit 52m
  • 5 cm spacing

I need your help to figure out how to setup the mixing valve and balancing valve. Right now it is set to 35°C with a 1500l/h set to the balancing valve. I don't know it this is right...

Can someone explain how to find out the optimum adjustments?
Also, is there any way i can find out the pressure drop of the UFH mixing group and distributor? I don't know how to interpret the Thermostat Kvs value and the Return valve Kvs value.

Below are the technical details of the Mixing and pumping unit.
Operating modes:
  • Constant pressure 300 mbar <-- pump is set to this
  • Constant pressure 400 mbar
  • Proportional and
  • Variably adjustable
Output approx. 10 kW,
Primary flow max. 90 °C, primary return max. 55 °C,
Pmax = 6 bar,
Thermostat valve Kvs value 4.0,
Return valve Kvs value 2.7


Many thanks!
 

Attachments

Uheat – Jake

Official Sponsor
There isn't really any technical calculations that need doing to determine the flow temperature.

The recommended mixing valve temperature for inscreed should be 45 degrees.
 
There isn't really any technical calculations that need doing to determine the flow temperature.

The recommended mixing valve temperature for inscreed should be 45 degrees.
So, it really doesn't matter if i completely close or fully open the balance valve for example?
 
Is it possible to give me further details?
I am seeing that the balance valve can be set to a different value meaning different flow rates.
I don't understand how it balances itself.
Thank you!
 
uHeat Forum Sponsor - PlumbersForums.net - Electric and Water Underfloor Heating Systems
This official sponsor may provide discounts for members

Reply to Help me understand the specifications of an UFH mixing group in the Water Underfloor Heating Installations area at PlumbersForums.net. Plumbing questions, answers, tips and tricks.

CorgiDirect - Discounted Corgi Related Documentation and Plumbing Supplies
This official sponsor may provide discounts for members

Plumbing and Plumbers

Plumbing Workwear

Shower Power Booster

Plumbase Spares - Plumbing Supplies and Spare Parts

Water Underfloor Heating

CORGI Direct for Plumbers

The Wetroom Store

Plumbase Spares

New Posts Threads Members

Top