Danfoss ECL Comfort 310 Operating Manual page 11

Operating Guide ECL Comfort 310, application P330
Application P330.1 – P330.5:
Heating circuits 2, 3, 4 and DHW circuits can be connected after
heating circuit 1. Circuit 1 acts as master and can react on the
sub-circuits demand. If so, the desired flow temperature at S3 can
be influenced by the desired flow temperature at S4, S9, S10 and
DHW charging temperature respectively.
The desired flow temperature of heating circuit 1 can, via S8, be
controlled by means of an external voltage in the range 0 - 10 volt.
Application P330.6 – P330.15:
Heating circuits and DHW circuits are typically connected
after the master controlled circuit (M). When so, the desired
flow temperature at S3 can be influenced by the desired flow
temperature at S4, S9, S10 and DHW charging temperatures.
The desired flow temperature of the master circuit can, via S8, be
controlled by means of an external voltage in the range 0 - 10 volt.
Application P330 in general:
Up to two Remote Control Units, the ECA 30 (one for each heating
circuit) can be connected to one ECL controller in order to measure
the room temperature and control the ECL controller remotely.
When the DHW circuit is active during the charging procedure,
selected heating circuits can be closed in order to give higher
priority to the DHW charging.
One or more connected flow or energy meters (based on M-bus
signal) can limit the flow or energy to a set maximum (DHW
circuits) and in relation to the outdoor temperature (heating and
master circuits).
Unused input can, by means of an override switch, be used to
override the schedule to a fixed 'Comfort' or 'Saving' mode.
Input S8 can be used to control the desired flow temperature of
heating circuit 1 or the master circuit. The applied voltage signal in
the range 0-10 volt is converted in the ECL controller to the desired
flow temperature.
Modbus communication to a SCADA system can be established.
The M-bus data can furthermore be transferred to the Modbus
communication.
Alarm relay (R6) can be activated:
• if the actual flow temperature differs from the desired flow
temperature.
• if a temperature sensor or its connection disconnects / short
circuits. (See: Common controller settings > System > Raw
input overview).
VI.GU.O3.02
The controller is pre-programmed with factory settings that are shown
in the 'Parameter ID overview' appendix.
© Danfoss | 2017.08 | 11