Danfoss C17 Installer's Manual page 13

Terminal Description
1 L1 Supply voltage 24 V a.c.
2 L2 Supply voltage 24 V a.c.
3 M1 Actuator - open
Actuator - close
4 M1
alt. thermo actuator
5 24 V a.c. supply voltage for M1
6
Not to be used.
7 Do not establish any
connections!
8
Relay for circulation pump,
9 K1
primary circuit
10 24 V a.c. supply for K1
11 K2 Relay for DHW charging pump 4 (2) A / 24 V a.c.
12 24 V a.c. supply for K2
Relay for DHW circulation
13 K3
pump
14 24 V a.c. supply for K3
Option:
Relay module ECA 80 (contacts: max. load 4 (2) A / 24 V a.c.)
25 (R4) Alarm relay output
Wire cross section: 0.75 - 1.5 mm
Electrical connections
Max. 2 x 1.5 mm
Incorrect connection can damage the TRIAC outputs. Max. load
(terminals 3, 4, (6 and 7)) 1 A / 24 V a.c.!
2
2
wires can be inserted into each screw terminal.
13b
Max. load
1 A / 24 V a.c.
1 A / 24 V a.c.
4 (2) A / 24 V a.c.
4 (2) A / 24 V a.c.