Application 4
EI.65.D4.02
56
Wiring Type 2
Input Type 2
Name Pin Common Description
S1 3 12 Water temperature on secondary side of common heat ex-
changer. Must be connected
S2 4 12 Return temperature on primary side of common heat ex-
changer
S3 5 12 Outdoor temperature. Must be connected
S4 6 12 Flow temperature, heat circuit. Must be connected
S5 7 12 Optional: Can be installed to measure return temperature in
the heat circuit. If it is not installed, S2 measures the return
temperature
S6 8 12 Hot-water temperature. Must be connected
S7 9 12 Optional: Can be installed to measure lower tank tempera-
ture
S8 10 12 Default: Room temperature. Can be redefined
S9 11 12 Available
S10 23 12 Available
S11 24 12 Available
Output Type 2
Name Pin Neutral Description
P1 16 13 Circulation pump, heat circuit
P2 17 13 Charging pump on primary side of hot-water circuit
P3 18 13 Circulation pump, hot-water circuit. Can be redefined
M1 19 12 Motor valve on primary side of common heat exchanger
M2 20 12 Mixing valve controlling flow temperature, heat circuit
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