Overhaul of heating pumps Most of the three-phase pumps for central heating has a winding with 2 or 3 speeds, with 9 or 12 leads, realized in a specific way and not always easy to determine which external wiring should be applied. In such a case you can contact us.
We will help you determine which wiring is suitable for the number of turns and wire size that you managed to capture. The required data are: - Data of the old winding: number of coils and turns per coil, wire size, the pitch .. - The dimensions of the stator core as shown below:
