Danfoss C17, Installer'S Manual

Page: 13 / 65

Installa
tion
13b
Terminal Description Max. load
1 L1 Supply voltage 24 V a.c.
2 L2 Supply voltage 24 V a.c.
3 M1 Actuator - open 1 A / 24 V a.c.
4 M1 Actuator - close
alt. thermo actuator
1 A / 24 V a.c.
5 24 V a.c. supply voltage for M1
6
Not to be used.
Do not establish any
connections!
7
8
9 K1 Relay for circulation pump,
primary circuit
4 (2) A / 24 V a.c.
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
13 K3 Relay for DHW circulation
pump
4 (2) A / 24 V a.c.
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
2
Electrical connections
Max. 2 x 1.5 mm
2
wires can be inserted into each screw terminal.
Incorrect connection can damage the TRIAC outputs. Max. load
(terminals 3, 4, (6 and 7)) 1 A / 24 V a.c.!