Danfoss ECL Comfort 310 Operating Manual page 9

Operating Guide
Danfoss District Energy
ECL Comfort 310, application P318
P318.1, ex. c, application with control pump and internal DHW circulation:
The shown diagram is a fundamental and simplified example and does
not contain all components that are necessary in a system.
All named components are connected to the ECL Comfort controller.
List of components:
ECL 310
ECL Comfort 310 controller
ECA 32 Built-in extension module, 0 - 10 V outputs
ECA 35 Built-in extension module, 0 - 10 V outputs and
PWM outputs
S2
(mandatory) Supply temperature sensor
S3 (mandatory) Charging temperature sensor
S5 Return temperature sensor
S6 (mandatory) Buffer temperature sensor
S8 (mandatory) Lower buffer temperature sensor
S9 DHW circulation return temperature sensor
S12
0 - 10 V input for desired temperature at S6
P1
Control pump (ON-OFF controlled)
V1
Speed control of control pump (0 – 10 V or PWM)
P2 Charging pump (ON-OFF controlled)
V2
Speed control of charging pump (0 - 10 V or PWM)
P3
Circulation pump (ON-OFF controlled)
V3
Speed control of circulation pump (0 - 10 V or
PWM)
X1 Heat demand signal
A1 Alarm
VI.JM.Q3.02
DEN-SMT/DK 9