Danfoss ECL Comfort 310 Operating Manual page 6

Operating Guide
A368.3, A368.4 and A368.5 only:
The refill pumps P4 and P7 are operated alternately. The alternation
time can be set as a number of days.
A solution with a single refill pump can also be selected.
In case of not reached pressure at S10 within a set time an alarm
will be generated.
A368.2 and A368.4 only:
The supply temperature S2 can determine the desired flow
temperature.
A368.3 and A368 only:
S11 is used for monitoring the pressure in the flow to the heating
circuit.
A368.5 only:
A flow meter F1 (pulse signal) measures the injected refill water.
S11 is used for monitoring the return temperature from the heating
circuit.
A368.6 only:
S2 is used for monitoring the return temperature from the heating
circuit.
Heating in general:
Exercise of circulation pumps and control valve in periods without
heating demand can be arranged.
Modbus communication to a SCADA system can be established.
A connected flow or energy meter based on M-bus signal can
limit the flow or power to a set maximum value. Furthermore, the
limitation can be in relation to the outdoor temperature. Typically,
the lower the outdoor temperature, the higher the accepted flow /
power.
M-bus data can be transferred to the Modbus communication.
Override function:
By means of an external switch or a relay contact the schedule of
the heating circuit can be overridden to
• constant Comfort mode
• constant Saving mode
• constant desired flow temperature
• constant Frost protection mode
6 DEN-SMT/DK
ECL Comfort 310, application A368
Typical A368.1 application:
VI.LG.J3.02
Danfoss District Energy