Danfoss ECL Comfort 210 Installation Manual page 10

Installation Guide
The application A214.6 is very flexible. These are the basic
principles:
Heating with room temperature control:
Typically, the flow temperature is adjusted according to your
requirements. The flow temperature sensor S3 is the most
important sensor. The desired temperature at S3 is set in the ECL
Comfort controller as the 'Desired balance temperature'.
The motorized control valve M1 is opened gradually when the
flow temperature is lower than the desired flow temperature and
vice versa.
Room temperature:
If the measured room temperature (S4 or ECA 30) does not equal
the desired room temperature, the desired temperature at S3 can
be adjusted.
By means of a week schedule (up to 3 'Comfort' periods / day),
the heating circuit can be in 'Comfort' or 'Saving' mode (two
different temperature values for desired room temperature). The
desired room temperature determines a correction of the desired
temperature at S3.
The circulation pump (F1) is ON / OFF controlled according to the
Schedule 1. The accessory (P2) is ON / OFF controlled according
to Schedule 1 or 2.
For a description of alarms, compensation temperature, return
temperature limitation (S5), frost protection (S6 and S7) and fire
alarm please read the section 'A214 and A314 in general' .
10 DEN-SMT/DK
ECL Comfort 210 / 310, application A214 / A314
Typical A214.6 application:
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 210 / 310 Electronic controller ECL Comfort 210 or 310
S1
Outdoor temperature sensor
S2
(Optional) Compensation temperature sensor
S3
Flow temperature sensor
S4 Room temperature sensor*
S5 (Optional) Return temperature sensor
S6 (Optional) Frost temperature sensor (not illustrated)
S7 (Optional) Frost thermostat (not illustrated)
S8
(Optional) Fire thermostat (not illustrated)
F1
Circulation pump (ON / OFF)
P2 Accessory output (ON / OFF)
X3 Optional output (ON / OFF)
M1 Motorized control valve, heating (3-point controlled)
A1
Alarm
* Alternative: ECA 30
VI.GU.A2.02
Danfoss District Energy