Step 2 – Setting Multi-Flow Adaptation on the primary circuit pump

After termination and addressing of all pumps, set the control function “Multi-Flow Adaptation” on the primary circuit pump.

This control function can be selected via the menu:

1. “Settings” menu ➜ Set control mode ➜ Setting assistant ➜ Heating ➜ Hydraulic shunt or heat exchanger ➜ Multi-Flow Adaptation.
2. “Settings” menu ➜ Set control mode ➜ Setting assistant ➜ Cooling ➜ Hydraulic shunt or heat exchanger ➜ Multi-Flow Adaptation.
3. “Settings” menu ➜ Set control mode ➜ Setting assistant ➜ Heating or cooling ➜ Basic control modes ➜ Multi-Flow Adaptation.
4. “Settings” menu ➜ Set control mode ➜ Setting assistant ➜ Basic control modes ➜ Multi-Flow Adaptation.

Setting additional control function “Multi-Flow Adaptation mixer”

The additional control function “Multi-Flow Adaptation mixer” is used to calculate the mixed volume flow in secondary loops with integrated 3-way mixers. As a result, the primary circuit pump takes the actual demand of the secondary pumps into account.

The following must be taken into account when installing and setting the pump for the calculation of the required thermal energy or mass flow for the secondary loop: To be able to use the function, the “Multi-Flow Adaptation mixer” function must be activated on the feeder pump and the temperatures must be recorded:

• in the secondary feed downstream of the hydraulic shunt
• in the primary feed upstream of the hydraulic shunt

For the secondary feed, connect the temperature sensor to either analogue input AI1 or AI2. The internal temperature sensor can be used for the primary feed.

NOTICE

In order to determine the mixed volume flow, the “heat quantity measurement” function with a connected temperature sensor in the secondary feed and secondary return must always be activated on the secondary pumps with mixer.

In the “Set control mode” menu ➜ “Multi-Flow Adaptation mixer”, turn the control knob to select “Switched on” and press to confirm.

The temperature sensors T1 and T2 on the feeder pump must then be configured to the correct sensor input (internal, AI1 or AI2) and the type of use.
In the factory setting, temperature sensor T1 is preset to “Analogue input 1” and temperature sensor T2 is preset to “Internal sensor”. The type of use of the temperature sensor T1 must then be set to the “temperature sensor” and the appropriate “Signal type – Analogue input (AI1)” e.g. PT1000.

After these adjustments, Multi-Flow Adaptation is activated with the additional control function “Multi-Flow Adaptation mixer”.

Temperature sensors must be fitted to the secondary pumps in the feed and return of the secondary loop and connected to the analogue inputs. The type of use must be selected and the setpoint source coupled to the analogue inputs. In addition, the heating or cooling quantity measurement must be activated on the respective pump.