Designation Input Output Signal Description
A12.1 X Not connected
A13.1 X 2nd mixed heating cycle pump (230V) switched
A14.1 X Changeover valve / pump cooling (230V)
A20.1 X 1st mixed heating cycle mixer open (230V)
A21.1 X 1st mixed heating cycle mixing valve closed (230V)
A22.1 X Bypass valve indoor unit closed (230V)
A23.1 X Bypass valve indoor unit open (230V)
A24.1 X 2nd mixed heating cycle mixing valve open (230V)
A25.1 X 2nd mixed heating cycle mixing valve closed (230V)
A30.1 X Non functional
A31.1 X Non functional
A32.1 X Enable 2nd WE booster heating or boiler
A33.1 X Non functional
A34.1 X Alarm codes
A40.1 X Speed setting solar pump PWM
A41.1 X Speed setting 1st mixed heating cycle (0-10V)
A42.1 X Speed setting unmixed heating cycle (0-10V)
A43.1 X Speed setting primary pump indoor unit (PWM)
A44.1 X Not connected
A45.1 X Not connected
A46.1 X Pump second mixed heating cycle
MI
Non functional
MO
CLK
nSS
GND
OT 1 (2x) Non functional
OT 2 (2x) Non functional
B1, A1
+12 V
olt,
GND
Operating mod. SMT 1 and communic. I/0 module 2
B2 / A2 Communication Com-Kit 1
B3 / A2 Non functional
RC.1 RC coding resistance WKF 130/170 Duo
35