How a valve is recorded depends primarily on the type of valve. Here's how to differentiate and enter the correct data:
Pressure-dependent valve
A pressure-dependent valve adjusts the flow rate according to the system pressure and requires regular hydraulic balancing when pressure conditions change.
Examples: IMI Heimeier V-Exact II, Danfoss RA-N
In the autarc software, for pressure-dependent valves, the following information must be entered:
Distance to the heating room:
Measure the total distance from the highest point of the heating surface all the way to the heat generator (e.g., boiler or heat pump).
→ Refer to the image showing how this distance should be measured.Pipe material:
Required as a basis for pressure loss calculation.
Pressure-independent valve (AFC valve)A pressure-independent AFC valve (e.g., Oventrop AQ, Resideo Kombi-TRV) keeps the flow rate constant by automatically compensating for pressure fluctuations — no manual adjustments are needed.
In the autarc software, simply enter the following:
Manufacturer
Model
Nominal size (DN)
Valve design (type of connection and regulation)