Technical data

68
Figure 6.21 – Electrical wiring diagram
Connection of plant water circulation pumps (power absorption equal or more than 700W), controlled directly by the appliance.
LEGEND
SCH electronic board
SCH2 electronic board
J10 J1 - jumper open
N.O. CONTACT clean exit normally open
MA Unit terminal block
L phase
N neutral
Components NOT SUPPLIED
PMW Hot side water pump ≥700W
PMY Cold side water pump ≥700W
KPW Hot side pump control relay
KPY Cold side pump control relay
If several appliances are connected on the same hydraulic circuit, it is always necessary
to provide a safety transformer (secondary SELV) and a respective control relay; make the
connections according to the diagram in Figure 6.22 Electrical wiring diagram → 69.