Operating principle

The passive dividing circuit controls the net thermal power passing through the circuit by vary the flow in the end unit. This means that the flow on the secondary side is variable and on the primary side is constant. In full load operation the right through inlet gate of  the 3-way mixing valve is completely opened whereas in partial load conditions the 3-way mixing valves is positioned in function of the process value (measured room temperature) and set point (room temperature). 

Individual components and parameters

1. 3-way mixing valve
2. Balance valve for primary balancing
3. Balance valve on the 3-way valve bypass

System check 

As this dividing circuit is a so called 'passive' circuit, the circuit needs a primary pump to extract hot water from the primary side. If the software encounters a missing pump on the primary side of the passive dividing circuit, it will report this as a problem while running the system check. 

Related models:

•  TOKEN  - NjQwfG9mUEF2bzla - Passive circuit without primary pump