3.8 Terminal assignment / legend - I/O module 02 - WKF 130/170 Duo
Designation Input Output Signal Description
Power X Power supply I/O 230V
PP X Power supply primary pump, indoor unit
S01.2 X Not connected
S02.2 X Not connected
S03.2 X Not connected
S04.2 X Not connected
S05.2 X Not connected
S06.2 X 4th mixed heating cycle inlet probe
S07.2 X Probe refrigerant piping
S08.2 X Not connected
S09.2 X Not connected
S10.2 X Not connected
S11.2 X 3rd mixed heating cycle RF probe
S12.2 X 3rd mixed heating cycle inlet probe
S13.2 X Heat pump inlet
S14.2 X 4th mixed heating cycle inlet probe
S15.2 X Not connected
S16.2 X Not connected
S20.2 X Not connected
S21.2 X Not connected
S22.2 X Not connected
S23.2 X Not connected
S24.2 X Ultrasonic flow rate meter HP, impulse rate
S25.2 X Not connected
S26.2 X Not connected
S27.2 X Not connected
S28.2 X Not connected
S29.2 X Not connected
A01.2 X Not connected
A02.2 X 3rd mixed heating cycle pump (230V) switched
A03.2 X Not connected
A04.2 X Not connected
A10.2 X Not connected
A11.2 X Not connected
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