Substation set up for the accounting of thermal energy consumption (heating and cooling), with instantaneous production of domestic hot water, for each real estate unit, assembled in a metal box for masonry installation.
Operation:
The Energy Combibox Floor module can work in 3 different conditions:
1 - Operation in heating mode: the priority valve is diverted normally to the heating side and the zone valve, powered by the room thermostat, is open and conveys the heat carrier fluid into the user system.
2 - Operation in domestic hot water production mode: when domestic hot water is requested by the user system, the flow switch (ref. n. 8 introductory figure) switches the position of the priority valve, diverting the heat carrier fluid into the primary circuit of the plate exchanger. When the domestic hot water request ends, the flow switch returns to its original position (contact open) and the priority valve directs the heat carrier fluid normally to the heating circuit.
3 - Operation in by-pass mode: in the case in which neither domestic hot water nor thermal energy for heating the rooms is requested, the priority valve is diverted normally to the heating circuit, while the zone valve is in the by-pass position; in this manner the heat carrier fluid coming from the central heating plant is not directed to either the user heating system or the plate exchanger, but is redirected to the central heating plant once again.