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links control unit for heatingSave money with the climate control unit

The modulation of the temperature in the heating as a function of the outside temperature, is a practice used increasingly not only in new installations, but also in the upgrading of existing installations.

This type of management of the heating system could provide a significant increase in ignition timing, however, the average savings from a correct setting of the climatic compensation is estimated by 5 to 20%.

There are many advantages with the lowering of the flow temperature, and in particular:

  • Increase of performance (COP) of the heat pumps

  • Greater use of solar thermal energy for heating

  • Less dispersion of the distribution network and on the heating

  • Minor convection, less dust in motion, velocity lower

  • Temperature more homogeneous masses warmer, lower ambient temperature at constant comfort

Adjusting the climate control unit

The control climate, through the actuation of a motorized mixing valve, mixing the flow temperature with the return temperature, to obtain the temperature calculated by the control unit. How is this calculated temperature?

One thing to do a priori, is to set in the control unit the foot, ie the minimum operating temperature, and a head, which is the maximum operating temperature (for example, generally, to a radiator system, the minimum is set to 35-40 ° C and the highest in 70 ° C, for a radiant system is set to the minimum-25 30 ° C and the highest in-40 45 ° C).

However, what it does vary the temperature of discharge is calculated, the characteristic curve that is set. The correct choice of the curve, expected to already know the following values:

  • Maximum flow temperature (Eg. 60 ° C)

  • Minimum temperature of the project (Eg.-12 ° C)

Taking into account these temperatures assumed, we have the following situation:


By the intersection of the maximum temperature of flow (60 ° C) And the temperature minimum design (-12 ° C), will select a characteristic curve 1,2.

This will cause, for example, when the outdoor temperature will be at 0 ° C, the outlet temperature will be approximately 45 ° C. However, the flow temperature will never fall below the minimum we set foot.

If you want to do the insights on heating in the floor, you can find valuable information at the following links:


Rossato Group Srl
Via del Murillo, km 3.500, 04013 Sermoneta LT - Italy
Share capital € 200.000,00 fully paid up - no. REA LT-107494
VAT-CF IT01745300598

Working Time
From Monday to Friday
Morning 8: 30 - 12: 30
Afternoon 13: 30 - 17: 30