![]() ![]() The expansion tank contains a diaphragm in contact, on one side, with the system water and, on the other side, with the air under pressure (pre-loaded to 1 bar) inside the tank.įor the valve to work correctly, it is necessary for the pressure upstream from it to be stable and suited to the type of gas being used, while the valve will supply a regular pressure to the nozzles. ![]() PRODUCT FRAMEWORK AND INTERNAL COMPONENTS 2.1 Hydraulic circuit heating Hydraulic diagram for heating When there is a call for heat, the room thermostat or control system make the burners ignite and the circulation pump come into operation. In particular, this unit complies with the following EU directives.
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June 2023
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