Danfoss ECL Comfort 296 controller Data sheet
Data sheet
ECL Comfort 296 controller,
Designed in Denmark
Remote Control Units ECA 30 / 31 and Application Keys
Description
ECL Comfort 296
controller series
ECL Comfort 296 controller:
The ECL Comfort 296 is an electronic weather
compensated temperature controller in the ECL
Comfort controller family for use in district
heating, central heating, cooling and ventilation
systems.
Energy savings can be achieved by correct control
of the flow temperature in heating and cooling
systems. The controller has 2 control circuits and
one additional thermostatic function.
The weather compensation function in the ECL
Comfort controllers measures the outdoor
temperature and controls the flow temperature
to the heating system accordingly. In case it is
available it also controls the domestic hotwater
installation.
The weather compensated heating system
increases the comfort level and saves energy.
The ECL Comfort 296 controller is configured with
a selected application by means of an ECL
Application Key.
The web-based ECL Portal communicates with
the ECL Comfort 296 controller for an effective
and easy-to-use turnkey SCADA (Supervisory
Control And Data Acquisition) tool for all users,
service personnel and at commissioning.
Service level can b e increased and/or service costs
reduced. The heating and/or cooling installation
is made accessible from vir tually anywhere at any
time via i.e. laptops or Smartphones which
increases service level and reduces response time
to alarms.
The ECL Tool software for ECL Comfort 296
controller offers possibilities for an alternative
remote control in relation to the ECL Portal and
OPC server software.
The ECL Comfort 296 controller is designed for
comfortable temperatures, optimum energy
consumption, easy installation by means of the
ECL Application Key (Plug-and-Play) and userfriendly 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 296 controller 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 296 controller has electronic
output for motorized valve control, relay output
for circulation pump / changeover valve control
among others, as well as alarm output.
Six Pt 1000 temperature se nsors can be connected.
In addition, two inputs are configured when
uploading the application. The configuration can
be Pt 1000 temperature sensor input, analogue
input (0 – 10 V) or digital input.
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ECL Comfort 296 controller, Remote Control Units ECA 30 / 31 and Application Keys
Description (continued)
The enclosure is designed for panel mounting, on
a wall and DIN rail.
The ECL Comfort 296 can work as a stand-alone
controller and communicate with up to two RCUs.
The ECL Comfort 296 can also work with other ECL
Comfort 296 / 210 / 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 296 hardware to run different
applications. The ECL Comfort 296 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.
The ECL Application Keys, series A2xx can be used
in the ECL Comfort 296.
Remote Control Unit (RCU):
The RCUs ECA 30 and ECA 31 are used for room
temperature control and override of the ECL
Comfort 296. The display has backlight. The RCUs
are connected to the ECL Comfort controllers by
means of 2 × twisted p air 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 substituting the built-in
temperature sensor.
Furthermore, the ECA 31 has a built-in humidity
sensor and the relative humidity 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).
ECL 296 controls 3-point based actuators:
If need for control of 0 - 10 Volt based actuators,
the ECL 310 and extension module ECA 32 or ECA
35 is recommended for dedicated applications.
Here the 0 - 10 Volt signal comes from the
extension module.
The application parameters are stored in the
controller and are not affected by power break.
The relevant ECL Application Keys for the ECL
Comfort 296 controller can be found in the
ordering section.
In addition to the above selected application keys
can run and log a temperature / time controlled
floor (screed) drying process for floor heating
applications.
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ECL Comfort 296 controller, Remote Control Units ECA 30 / 31 and Application Keys
Application keys,
overview
Key Subtypes usable in ECL Comfort 296:
A214 A214.1, A214.2, A 214. 3, A214.4, A214. 5, A214.6
A217 A217.1, A 217. 2 , A 217. 3
A230 A230.1 *, A230.2 *, A230.3 *, A230.4 *
A231 A231.1, A231. 2
A232 A232.1
A237 A 237.1, A 237. 2
A247 A247.1, A 247. 2, A247. 3
A260 A260.1
A266 A266.1 *, A266.2 **, A266.9 *, A266.10 *
A267 DEA267.1
A275 A275.1, A275.2, A275.3
*
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 which can work in the ECL Comfort 296.
The application keys can work in ECL Comfort 210 / 310 too.
Not all keys are marketed in all countries. Please contact your local Danfoss sales company.
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ECL Comfort 296 controller, Remote Control Units ECA 30 / 31 and Application Keys
Application examples All mentioned components (S = temperature sensor, P = pump, M = Motorized control valve) are
wired to the ECL Comfort controller.
A217.1:
DHW tank charging application
A230.1:
Indirectly connected heating system. Wind compensation as option
A230.2:
Indirectly connected cooling system (district cooling)
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A230.3:
Indirectly connected heating system. Compensation for too high Relative Humidity (measured by
ECA 31). Wind compensation as option.
A230.4:
Indirectly connected heating system. Static pressure measurement / alarm. Monitoring of DHW and DHW circulation return temperatures.
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A231. 2:
Indirectly connected heating system with 2-pump control and refill water function.
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ECL Comfort 296 controller, Remote Control Units ECA 30 / 31 and Application Keys
A237.1:
Typical heating and DHW system (district heating)
A247.1:
Typical heating and DHW storage tank system (district heating)
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