Installation Guide
ECL Comfort 210 / 310, application A214 / A314
The application
A314.3
is very flexible. These are the basic
principles:
Heating with room temperature control
Typically, the air duct temperature is adjusted according to your
requirements. The air duct 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 (controlling the heating
temperature) is opened gradually when the air duct emperature is
lower than the desired air duct temperature and vice versa.
Room temperature:
If the 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).
In 'Saving' mode the desired room temperature determines a
correction of the desired temperature at S3.
The fan F1 is ON / OFF controlled according to the schedule and
heating demand. The damper P2 is ON / OFF controlled according
to schedule. The circulation pump X3 is ON / OFF controlled
according to heating demand.
Variable fan speed (optional):
The fan V1 can be speed controlled in relation to the measured
wind speed S10. The fan speed control signal is a 0–10 volt signal,
generated by the internal input / output module ECA 32. A menu
in the ECL Comfort 310 contains settings for relationship between
actual wind speed and desired fan speed.
For a description of alarms, compensation temperature, return
temperature limitation (S5) and frost protection (S6 and S7), please
read the section ‘A214 and A314 in general’.
Typical A314.3 application:
ECL 310
S 3
P 2
S 5
M1
S 6
X3
S 7
F1 / V1
S 8
S 8
S 8
S 1
D
a
n
fo
s
s
8
7
H
2
1
3
1
.1
2
A1
S10
+ ECA 32
S 4
S 2
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 310 Electronic controller ECL Comfort 310
ECA 32 Built-in extension module
S1 Outdoor temperature sensor
S2 (Optional) Compensation temperature sensor
S3 Duct temperature sensor
S4 Room temperature sensor*
S5 (Optional) Return temperature sensor
S6 (Optional) Frost temperature sensor
S7 (Optional) Frost thermostat
S8 (Optional) Fire thermostat
S10 Wind speed signal (0 - 10 volt)
F1 Fan (ON / OFF)
P2 Damper (ON / OFF)
X3 Circulation pump, heating (ON / OFF)
M1 Motorized control valve, heating (3-point controlled)
M2 Motorized damper (0 - 10 volt controlled)
V1 Fan speed (0 - 10 volt controlled)
A1 Alarm
* Alternative: ECA 30
Danfoss District Energy
VI.GU.A2.02
DEN-SMT/DK
13