Danfoss ECL Comfort 296 Operating Manual page 6

Operating Guide ECL Comfort 210 / 296, application A267
Heating (circuit 2):
This circuit works after same principles as circuit 1.
The flow temperature sensor S4 is the most important sensor.
By means of a week schedule (up to 3 'Comfort' periods / day), the
heating circuit 2 can be in 'Comfort' or 'Saving' mode (two different
temperature values for desired room temperature). The motorized
control valve M2 controls the circuit.
The return temperature (S2) enables limitation as described
previously.
If the measured room temperature S7 does not equal the desired
room temperature, the desired flow temperature can be adjusted.
The circulation pump (P4) is ON at heat demand or at frost
protection.
The heating can be switched OFF when the outdoor temperature is
higher than a selectable value.
Heating circuit 2 can be connected after heating circuit 1. If so, the
desired flow temperature at S3 can be influenced by the desired
flow temperature at S4.
Heating circuits 1 and 2:
The heating circuits 1 and 2 can use the same room temperature
sensor (S7). However, each heating circuit can have an ECA 30,
Remote Control Unit, in order to have separate room temperature
signals. Another solution: Use S7 for one of the heating circuits and
ECA 30 for the other heating circuit.
6 | © Danfoss | 2018.01
A267.1 example a:
A267.1 example b:
A267.1 example c:
VI.GU.G2.02