Application 2
EI.65.D4.02
47
Wiring Type 1/230 V
Wiring Type 1/24 V
Input Type 1
Name Pin Common Description
S1 3 12 Flow temperature, heat circuit. Must be connected
S2 4 12 Return temperature, heat circuit
S3 5 12 Outdoor temperature. Must be connected
S5 7 12 Optional. Can be installed to measure return temperature in
the hot-water circuit
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
Output Type 1
Name Pin Neutral Description
P1 18 13 Circulation pump, heat circuit
P2 19 13 Circulation pump, hot-water circuit
M
(ON/OFF)
20 13 Motor valve on primary side of hot-water circuit. Must be
of a type that opens/closes upon receiving a relay signal
M1 16, 17 13 Appl. 2A: Motor valve, primary side of heat circuit.
16: Close. 17: Open
Appl. 2B: Mixing valve in heat circuit
16: Reduce temperature. 17: Increase temperature
M2 23, 24 13 Appl. 2A: As an alternative to M
(ON/OFF)
, M2 can be used to
perform ON/OFF control of service water heating
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