Identifying The System Type - Danfoss ECL Comfort User Manual

10a

Identifying the system type

The ECL Comfort controller is a universal controller that can
be used for various systems. Based on the shown standard
systems, it is possible to configure additional systems.
In this section you find the most frequently used systems. If
your system is not quite as shown below, find the diagram
which has the best resemblance with your system and make
your own combinations.
The functions can only be realized with ECL Comfort 301 and as of
controller version 2.00.
10.1 Weather compensated 1-stage heat pump with
additional electric heater for heating and DHW
circuits (DHW priority)
System settings
Circuit Line Description
Closed valve / normal
I 52
operation
II 85 Application selection
II 140 Alarm input selection
The controller will not be active unless line 140 is set to 0.
System diagrams in this instruction are principal drawings and do
not contain all components which are necessary in your systems.
Connections of controlled units
Terminal Description
10
12
13 EH
Recomm.
14
setting
25 P2
ON
26
0
0
28 P3
29
Temperature sensor connections, see section 14a.
1 (L) Voltage supply 230 V a.c.
2 (N) Voltage supply 230 V a.c.
6 M2 Changeover valve
- open (DHW)
7 M2 Changeover valve
- close (heating)
8 230 V a.c. voltage supply
for M2
9 P1 Circulation pump
230 V a.c. voltage supply for
pump relay R1
11 C1 Compressor I, heat pump
230 V a.c. voltage supply for
compressor relay R2
Electric heater
230 V a.c. voltage supply for
relay R3 for the electric heater
Circulation pump, heat pump
230 V a.c. voltage supply for
pump relay R4
Ground coil (brine) pump
for heat pump
230 V a.c. voltage supply for
pump relay R5
10b
Max. load
0.2 A / 230 V a.c.
0.2 A / 230 V a.c.
4 (2) A / 230 V a.c.
4 (2) A / 230 V a.c.
4 (2) A / 230 V a.c.
4 (2) A / 230 V a.c.
4 (2) A / 230 V a.c.