Technical data

Installation, user and maintenance manual – GAHP-GS/WS
69
Figure 6.22 – Electrical wiring diagram
Example of pump/appliance electrical connection with 230 Vac pump, controlled directly by the appliance through a relay and a SELV safety
transformer
LEGEND
SCH electronic board
SCH2 W10 electronic board
SCH3 MOD10 electronic board
J1 J10 - 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
PMY Cold side water pump
KPW Hot side pump control relay
KPY Cold side pump control relay
PTR SELV safety transformer
IP bipolar pump switch
Variable flow pumps WILO STRATOS PARA can also be used (see Section 8 ACCESSO-
RIES → 81). In this case, for the electrical wiring of the pumps, please refer to Figure
6.14 Wiring diagram for connection of Wilo variable rate pumps → 59 and the relevant
paragraph.