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Control Systems

Air Temperature Control

Thermostat is positioned in the room that is being heated, once that room gets up to temperature the thermostat will send a signal to the control centre which will close the actuator fitted to the manifold, this will stop the flow of water around the Underfloor Heating circuit until there is a further heat demand from the thermostat.  To offer ultimate comfort Maincor advise the use of multiple thermostats since the heat demands and losses will different throughout the property depending on usage and external conditions.


Water Temperature Control

A range of factors will determine the water temperature required for your Underfloor Heating system, these will include

  • The floor construction
  • The heat requirement of the space
  • The floor coverings
  • The pipe diameter and pipe centres that are used.

 

Generally Underfloor Heating systems will run at temperatures from 35 – 50oC, if the boiler or heat source cannot supply the water at the required temperature either thermostatic or actuated blending controls can be supplied.  Generally a secondary circulating pump would also be required where there is blending control on the system.

As previously mentioned the Underfloor Heating requires a low flow temperature, at design conditions there will be approximately a 7oC temperature drop across the Underfloor Heating circuits.  Maincor supply 3-port thermostatic blending valve to blend the primary flow from the boiler to mix with the Underfloor Heating return water to maintain the required temperature for the Underfloor Heating system.  Maincor can supply a pre-assembled thermostatic mixing valve and pumping unit which fits directly onto the Maincor Underfloor Heating manifold.


An alternative method of blending the water is to use an actuated blending valve and weather compensation controller, this is generally a slightly more expensive way of controlling your Underfloor Heating system however it does offer a more efficient way of controlling the water temperature.  As the outside temperature decreases the heatflow of the building will increase hence the amount of energy we have to put back into the building will also increase, if comfort conditions are to be maintained.