Danfoss ECL Comfort 210 Installation Manual page 7

Installation Guide
A260, in general:
Up to two Remote Control Units, ECA 30 / 31, can be connected to
one ECL controller in order to control the ECL controller remotely.
Exercise of circulation pumps and control valve in periods without
heating demand can be arranged.
Additional ECL Comfort controllers can be connected via the ECL
485 bus in order to utilize common outdoor temperature signal,
time and date signals. The ECL controllers in the ECL 485 system
can work in a master - slave system.
Circuit 1 can act as a master circuit and circuit 2 can act as a slave.
Heat demand in slave circuit(s) can be transferred to the master
circuit in order to fulfill the demand from slave(s). Slaves can also
be other ECL controllers on the same ECL 485 system.
Unused input can, by means of an override switch, be used
to override the schedule to a fixed 'Comfort', 'Saving', 'Frost
protection' or 'Constant temperature' mode.
Modbus communication to a SCADA system can be established.
The M-bus data (ECL Comfort 310) can furthermore be transferred
to the Modbus communication.
Alarm A1 (= relay 4) can be activated if:
• the actual flow temperature differs from the desired flow
temperature.
• a temperature sensor or its connection disconnects / short
circuits. (See: Common controller settings > System > Raw
input overview).
Holiday programs are present for both heating circuits. Besides, a
holiday program is present for the entire controller.
When the subtype A260.1 has been uploaded, the ECL Comfort
controller starts in manual mode. This can be used for checking the
controlled components for correct functionality.
Danfoss District Energy
ECL Comfort 210 / 310, application A260
The controller is pre-programmed with factory settings that are shown
in the 'Parameter ID overview' appendix.
VI.LG.F2.02 DEN-SMT/DK 7