Danfoss ECL Comfort 310 Data sheet

Data sheet

ECL Comfort 310 controller,

Designed in Denmark

Remote Control Units ECA 30 / 31 and Application keys

Description

ECL Comfort 310 controller
series

ECL 310

The ECL Comfort 310 is an electronic weather
compensated temperature controller in the ECL
Comfort controller family for use in district
heating, central heating and cooling systems.
Energy savings can be achieved by correct control
of the flow temperature in heating and cooling
systems. Up to 4 circuits can be controlled.

The weather compensation function in the ECL
Comfort controllers measures the outdoor
temperature and controls the flow temperature
to the heating system accordingly. The weather
compensated heating system increases the
comfort level and saves energy.

The ECL Comfort 310 controller is configured with
a selected application by means of an ECL
Application Key.

The web-based ECL Portal communicates with
the ECL Comfort 310 for an effective and easy-to­use turnkey SCADA (Supervisor y Control And Data
Acquisition) tool for all users, service personnel
and at commissioning. Service level can be
increased and/or service costs reduced. The
heating and/or cooling installation is made
accessible from virtually anywhere at any time via
laptops or Smartphones which increases service
level and reduces response time to alarms.

The ECL Tool software for ECL Comfort 310 offers
possibilities for an alternative remote control in
relation to ECL Portal and OPC server software.

ECL Comfort 310 is designed for comfortable
temperatures, optimum energy consumption,
easy installation by means of the ECL Application
Key (Plug-and-Play) and user-friendly operation.

Improved energy savings are facilitated by
weather compensation, adjustment of
temperature according to schedule, optimization
as well as limitation of return temperature, flow
and power.

The ECL Comfort 310 is easily operated by means
of a dial (multi-functional knob) or a Remote
Control Unit (RCU). The dial and the backlighted
display guide the user through the text menus in
the selected language.

The ECL Comfort 310 controller has electronic
output for motorized valve control, relay output
for circulation pump / changeover valve control
among others, as well as alarm output.

6 Pt 1000 temperature sensors can be connected.
In addition, 4 inputs are configured when
uploading the application. The configuration can
be Pt 1000 temperature sensor input, analogue
input (0 – 10 V) or digital input.

Depending on application, one of the internal
extension modules ECA 32 or ECA 35 (inserted into
the controller’s base part) can give additional input
and output signals.

© Danfoss | 2020.01

AI155886473192en-000602| 1

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

Description (continued) The enclosure is designed for mounting on wall

and DIN rail. A variant ECL Comfort 310B (without
display and dial) is available. It can be used for
mounting inside a panel and is operated by means
of the RCU ECA 30 / 31 which can be placed in
front of the panel.

The ECL Comfort 310 can work as a stand-alone
controller and communicate with up to two RCUs
and an extension module ECA 32 or ECA 35 with
additional inputs / outputs.

The ECL Comfort 310 can also work with up to 2 x
RCUs, ECA 32 / 35 and other ECL Comfort 210 / 296
/ 310 controllers via the ECL 485 communication
bus.

Ethernet connec tion is integrated in the controller.
Furthermore, Modbus communication to SCADA
systems (Supervisory Control and Data
Acquisition) and M-bus communication to heat
meters are integrated.

ECL Application Key
and applications:

Different ECL Application Keys make it easy for
the ECL Comfort 310 hardware to run different
applications. The ECL Comfort 310 controller is
loaded with the desired application by means of
the ECL Application Key, which contains
information about applications (basic application
sketches are shown in the display), languages,
factory settings and firmware.

Remote Control Unit (RCU):

The RCUs ECA 30 and ECA 31 are used for room
temperature control and override of the ECL
Comfort 310. The display has backlight. The RCUs
are connected to the ECL Comfort controllers by
means of 2 × twisted pair cable for communication
and power supply (ECL 485 communication bus).

The ECA 30 / 31 has a built-in room temperature
sensor. An external room temperature sensor can
be connected substitutin g the built-in temperature
sensor.

Furthermore, the ECA 31 has a built-in relative
humidity sensor and the signal is used in relevant
applications. It is possible to connect up to 2 RCUs
on the ECL 485 communication bus. One RCU can
monitor max. 10 ECL Comfort controllers (master/
slave system).

The ECL Application Keys, series A2xx can b e used
in ECL Comfort 210, ECL Comfort 296 and ECL
Comfort 310. Most of the A2xx application keys
give extended functionalities when used in ECL
Comfort 310, such as additional temperature
sensors and M-bus communication.
The ECL Application Keys, series 3xx can be used
in ECL Comfort 310 only.

The application parameters are stored in the
controller and are not affected by power break.
The relevant ECL Application Keys for the ECL
Comfort 210 / 296 / 310 controller can be found
in the ordering section.

2 | © Danfoss | 2020.01

AI155886473192en-000602

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

Application keys, overview,
sub-types included

ECL Comfort 210 / 296 ECL Comfort 310

Key

A214 A214.1, A214.2, A214.3, A214.4, A214.5,

A214.6

A217 A217.1, A217. 2, A 217.3 A217.1, A217. 2, A 217.3

A230 A230.1, A230.2, A230.3, A230.4 A230.1 *, A230.2 *, A230.3 *, A230.4 *

A231 A231.1, A 231.2 A231.1, A231.2

A232 A232.1 A2 32 .1

A237 A 2 37.1, A237. 2 A237.1, A2 37.2

A247 A 247.1, A247. 2, A3 47.3 A247.1, A 247. 2, A247. 3

A260 A26 0.1 A26 0.1

A266 A266.1, A266.2, A266.9, A266.10 A266.1 *, A266.2 **, A266.9 *, A266.10 *

A275 A275.1, A275.2, A275.3 A275.1, A275.2, A275.3

A319 A319.1, A319.2

A333 A333.1, A333.2, A333.3

A361 A361.1, A 361.2

A362 A3 62.1

A367 A 367.1, A367. 2

A368 A368.1, A368.2, A368.3, A368.4, A368.5,

A376 A376.1, A376.2, A376.3 *, A376.9, A376.10

A377 A 377.1, A377.2, A377.3

A390 A390.1, A390.2 *, A390.3, A390.11 *, A390.12 *,

A214.1, A214. 2, A214.3, A214 .4, A214. 5, A214.6
A314.1, A314.2, A314.3, A314.4, A314.5, A314.6,
A314.7, A314.9

A317.1, A317. 2

A331.1, A331. 2

A332.1, A332.2, A332.3, A332.4

A337.1, A 337. 2

A347.1, A3 47.2, A 3 47. 3

A375.1, A375.2, A375.3, A375.4, A375.5

A368.6

A390.13 *

*
When used in ECL 310 + ECA 32 / 35, 0 - 10 Volt controlled actuators can be used alternatively.

**
When used in ECL 310 + ECA 32 / 35 a 0 - 10 Volt controlled actuator can, alternatively, be used for the
heating circuit.

This is an overview of currently available application keys for the ECL Comfort controllers.
Not all keys are for sale in your country. Please contact your local Danfoss sales company.

AI155886473192en-000602

© Danfoss | 2020.01 | 3

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

Application examples All mentioned components (S = temperature sensor, P = pump, M = Motorized control valve and so

on) are wired to the ECL Comfort ECL 210 / 296 / 310.

All applications from ECL Comfort 210 / 296 can run in ECL Comfort 310. Extra functions and
communication facilities are enabled.

A214.1, ex. a:
Cooling application, duct temperature based on room temperature.

S1

ECL 210 / 296 / 310

A1

M2

S5

X3

P2

F1

S3

S8S8S8

A214.2, ex. a:
Heating application, heating temperature based on duct temperature.

S1

ECL 210 / 296 / 310

A1

S4

Danfoss

87H2113.13

Danfoss

87H2118.12

P2

S3

X3

S6

S7

S5

M1

F1

S4

S8S8S8

4 | © Danfoss | 2020.01

AI155886473192en-000602

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

A214.3, ex. a:
Heating application, duct temperature based on room temperature.

S1

ECL 210 / 296 / 310

A1

M1

X3

S5

P2

S6

S7

F1

S3

S8S8S8

A214.5, ex. a:
Heating / cooling application, duct temperature based on room temperature.

S4

Danfoss

87H2120.12

S1

P2

X3

ECL 210 / 296 / 310

M1

S5

S6

S7

A1

F1

M2

S8S8S8

S3

S4

Danfoss

87H2124.12

AI155886473192en-000602

© Danfoss | 2020.01 | 5

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

A314.1, ex. a:
Ventilation system with heating, passive cooling (outside air) and constant duct temperature
control. Analogue controlled passive cooling stage (M2).

S1

P2

M2

A

ECL 310

+ ECA 32

S3

X3

S6

A1

M1

S5

F1

S7

A314.1, ex. b:
Ventilation system with heating, cooling and duct temperature control.
Analogue controlled cooling stage (M2).

S1

ECL 310

+ ECA 32

A1

S4

S8S8S8

S2

S2

Danfoss

87H2133.12

Danfoss

87H2128.12

P2

S3

X3

S6

S7

S5

M1

F1

M2

A

S4

S8S8S8

6 | © Danfoss | 2020.01

AI155886473192en-000602

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

A314.2, ex. b:
Ventilation system with heating, cooling and room temperature control. Analogue controlled
cooling stage (M2).

S1

X3

ECL 310

+ ECA 32

M1

S5

A1

M2

A

S2

P2

S6

S7

F1

S8S8S8

S3

S4

A314.3, ex. a:
Ventilation system with heating and room temperature control. Speed controlled fan.

S1

ECL 310

S2

+ ECA 32

A1

Danfoss

87H2135.12

Danfoss

87H2131.12

S10

P2

X3

S6

S7

M1

S5

F1 / V1

S3

S4

S8S8S8

AI155886473192en-000602

© Danfoss | 2020.01 | 7

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

A217.1, ex. a:
DHW tank charging application.

A217.1, ex. b:
DHW tank heating application.

S1

ECL 210 / 296 / 310

S2

M1

S5

A217.2, ex. a:
DHW tank charging with preheating circuit.

S1

S2 S3

S3

P1

ECL 210 / 296 / 310

S4

A1

A1

S6

S6

S8

P3

Danfoss

87H2068.13

Danfoss

87H2071.13

8 | © Danfoss | 2020.01

M1

S5

P1

A

S8

B

P2

P3

AI155886473192en-000602

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

A217.3, ex. a:
DHW heating.

A217.3, ex. c:
DHW heating on demand (flow switch). With or without circulation.

A230.1, ex. a:
Indirectly connected heating system. Wind compensation as option.

AI155886473192en-000602

© Danfoss | 2020.01 | 9

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

A230.2, ex. a:
Indirectly connected cooling system (district cooling).

A230.3:
Indirectly connected heating system. Compensation for too high relative humidity (measured by
ECA 31). Wind compensation as option.

10 | © Danfoss | 2020.01

A230.4:
Indirectly connected heating system. Static pressure measurement / alarm.
Monitoring of DHW - and DHW circulation return temperatures.

AI155886473192en-000602

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

A231.2:
Indirectly connected heating system with 2-pump control and refill water function.

A331.2, ex. a:
Heating system with two-pump control and refill water function.
Supply temperature dependent flow temperature control.

AI155886473192en-000602

A232.1, ex. a:
Control of flow temperature (heating in floor / cooling in ceiling) in relation to outdoor, room
and dew point temperature.

© Danfoss | 2020.01 | 11

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

A332.1, ex. a:
Control of flow temperature (heating in floor / cooling in ceiling) in relation to outdoor, room and
dew point temperature. Optional return temperature limitation.

A332.2, ex. a:
Separated control of flow temperatures for heating / cooling in relation to outdoor, room and dew
point temperature. Optional return temperature limitations.

A332.3:
Separated control of flow temperatures for heating / cooling in relation to outdoor, room and dew
point temperature. Optional return temperature limitations. Advanced instantaneous DHW
temperature control.

12 | © Danfoss | 2020.01

AI155886473192en-000602

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

A332.4:
Control of flow temperature (heating in floor / cooling in ceiling) in relation to outdoor, room and
dew point temperature. External override of heating / cooling mode. Optional return temperature
limitation.

ECL 310

A1

S8

S7

S9

DanfossS187H1496.10

S6

M1

S3

X3

X2

S10

A237.1 / A337.1, ex. a:
Indirectly connected heating and DHW system.

S2

P1

S5

M2

AI155886473192en-000602

A237.2 / A337.2, ex. a:
Indirectly connected heating and DHW charging system.

© Danfoss | 2020.01 | 13

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

A247.1, ex. a:
Indirectly connected heating and DHW tank charging system. Parallel mode or DHW priority.

A247.2, ex. a:
Indirectly connected heating and DHW tank charging system with preheating circuit.
Parallel mode or DHW priority.

14 | © Danfoss | 2020.01

AI155886473192en-000602

Data sheet ECL Comfort 310 controller, Remote Control Units ECA 30 / 31 and Application keys

A247.3, ex. a:
Indirectly connected heating and advanced DHW tank charging system with preheating circuit.
Parallel mode or DHW priority.

A347.1, ex. a:
Indirectly connected heating and DHW tank charging system. Parallel mode or DHW priority.

S1

M2

M1

S5

S2

S3

S4

ECL 310

B

A1

P1

S6

S8

P2

S7

A

P3

Danfoss

87H2057.11

AI155886473192en-000602

© Danfoss | 2020.01 | 15