Installation Guide
ECL Comfort 210 / 310, application A214 / A314
The applications
A214.2
and
A214.3
are very flexible and almost
identical. These are the basic principles:
A214.2: Heating with duct temperature control
A214.3: Heating with room temperature control
Typically, the heating temperature is adjusted according to your
requirements. The 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 supply
temperature) is opened gradually when the S3 temperature is
lower than the desired S3 temperature and vice versa.
S4 temperature:
If the measured S4 temperature does not equal the desired S4
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 S4 temperature). The desired S4
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.
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 A214.2 application:
S 4
P 2
S 5
M1
S 6
X3
S 3
S 7
F1
S 8
S 8
S 8
S 1
D
a
n
fo
s
s
8
7
H
2
1
1
8
.1
1
ECL 210 / 310
A1
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 (not
illustrated)
S3
Flow temperature sensor
S4
Duct temperature sensor
S5
(Optional) Return temperature sensor
S6
(Optional) Frost temperature sensor
S7
(Optional) Frost thermostat
S8
(Optional) Fire thermostat
F1
Fan (ON / OFF)
P2
Damper (ON / OFF)
X3
Circulation pump (ON / OFF)
M1
Motorized control valve, heating (3-point controlled)
A1
Alarm
6
DEN-SMT/DK
VI.GU.A2.02
Danfoss District Energy