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Frese PV-SIGMA Compact Frese OPTIMA Compact Frese Application Guide

Radiator System

with DPCV and dynamic balancing


The room temperature is controlled by the radiator valve on each radiator.

The balance of the system is handled by the installation of a dynamic balancing valve on each riser/branch, controlling the flow rate through this section of the system.

The dynamic balancing valve is a flow limiter that prevents overflow in the part of the system controlled by the valve.

This will ensure that the design flow is always available in all parts of the system.

A DPCV controlling the differential pressure at each riser prevents from noise in the system and allows the radiator valves to regulate and close when required.

The temperature from the primary circuit is lowered to an optimal inlet temperature at the secondary side, with a heat PICV injection circuit connected to a controller.