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Before you start
How to use this guide
This guide is divided into two parts:
• Daily Use (turn the guide over)
Yellow sections 01 - 09
• Installation and maintenance:
Grey sections 10 and onwards
Save energy - save money - improve your comfort
temperature
The ECL Comfort controller is designed by Danfoss for
temperature control of heating systems.
The ECL Comfort controller ensures you of the following;
• Room temperatures will be adjusted to your personal
settings
.
• Lower temperatures and lower energy consumption
reduce costs and ensure optimum use of energy
resources.
• The automatic pump motion program protects the
circulation pump against blocking.
Sketch an outline of your heating system
The ECL Comfort controller is designed for a wide range of
heating systems with different configurations and
capacities.
If your heating system differs from the diagrams shown in
section 10, you may want to sketch an outline of the system
about to be installed. This makes it easier to use the
Installer’s Guide, which guides you step-by-step from
installation to the final adjustments before the end-user
takes over.
Note! The controller is pre-programmed with factory
settings that are shown in the relevant sections of this
guide.
Operating the ECL Controller and the ECL Card
The ECL Card has a yellow side for the daily use and a
grey side for the installation and maintenance.
Both sides of the ECL Card are divided into lines
representing the different options of control and
programming.
Select the side of the ECL Card you want to
operate.
The light diode below the inserted ECL Card
indicates the chosen side, ie. left light for daily use
and right light for the installation and maintenance.
(See sections 15 and 16).
VI.7B.C2.02
Installation
Identifying the system type
10
Heating system type 2
District heating circuit - direct connection
Heating system type 1
District heating circuit with heat exchanger
In this section you find the most frequently used systems.
If your system is not quite as shown below, find the diagram
which has the best resemblance to your system and make
your own combinations.
Alternatives using the same settings:
• Heat exchanger or direct district heating
• 2-, 3-, or 4-way control valve
Installation
Heating system type 3
Heating circuit with boiler and 3-way valve
Heating system type 4
Heating circuit with boiler and 4-way valve
Note!
System diagrams in this instruction are principal drawings
and do not necessarily contain all components for heating
systems.
Installation
Mounting the ECL Comfort
controller
11
For easy access, you should mount the ECL Comfort
controller near the heating unit. Select one of the three
following methods:
• Mounting on a wall
• Mounting on a DIN rail
• Mounting in a panel
Screws and rawlplugs are not supplied.
Mounting in a panel
Connector set: Order code No. 087B1148.
The panel plate thickness must not exceed 3 mm.
Prepare a cut-out with the dimensions 92 x 138 mm. Pull off
the right side of the lid by means of a screwdriver.
Insert the controller into the panel cut-out and fix it with the
two locks which are placed diagonally in two corners of the
controller.
Mounting on a DIN rail
Mounting kit: Order code No. 087B1145.
A mounting kit is necessary to mount the box with the
controller on a DIN rail.
Mounting on a wall
Socket for mounting on wall: Order code No. 087B1149.
Mount the terminal box on a wall with a smooth surface.
Establish the electrical connections and position the
controller in the box. Secure the controller with the fixing
screw.
Installation
Connecting the 230 V a.c. units
12
Electrical connections -
230 V a.c.
Installation
Cable cross section for voltage conductor: 0.75 - 1.5 mm
2
Cable length: Max. 50 m
Electrical connections
Max. 2 x 1.5 mm
2
cables can be inserted in each screw terminal.
Establish these jumpers:
Jumper from 1 to 5
Jumper from 5 to 10
Jumper from 2 to common N-terminal
1 L Supply voltage 230 V a.c.
(Phase)
2 N Supply voltage 230 V a.c.
(Neutral)
3 M1 Gear motor - open 0.2A 230 V a.c.
4 M1 Gear motor - close
alt.: ABV thermo actuator 0.2A 230 V a.c.
5 Phase for M1
9 P1 Circulation pump 4(2)A 230 V a.c.
10 Phase for pump relay
Terminal Description Max. load
Connecting the sensors
Installation
Cable cross section for sensor connections: Min. 0.4 mm
2
Total cable length: Max. 50 m (sensors and bus).
NOTE! Cable lengths above 100 m may cause noise sensibility
(EMC).
Establish the jumper from 16 to common terminal.
15 and 16 System device bus
17 and 16 Outdoor sensor (S1) ESMT
18 and 16 Room sensor (S2) ESMR
19 and 16 Flow sensor (S3) ESMU/ESMA/ESMC
20 and 16 Return sensor (S4) ESMU/ESMA/ESMC
Terminal Description Type (recommended)
Connecting the 24 V a.c. and 230 V a.c. units
13
Electrical connections -
24 V a.c
Cable cross section for voltage conductor: 0.75 - 1.5 mm
2
Cable length: Max. 50 m
Electrical connections
Max. 2 x 1.5 mm
2
cables can be inserted in each screw terminal.
Installation
Establish these jumpers:
Jumper from 1 to 5
Jumper from 5 to 10
Jumper from 2 to common N-terminal
1 L Supply voltage 24 V a.c.
2 N Supply voltage 24 V a.c.
3 M1 Gear motor - open 1A 24 V a.c.
4 M1 Gear motor - close
alt.: ABV thermo actuator 1A 24 V a.c.
5 24 V a.c. supply for M1
9 K1* Relay for circulation pump P1
10 24 V a.c. supply for relay
Terminal Description Max. load
* K1 auxiliary relay
Coil: 24 V a.c.
Contacts: 4A 230 V a.c.
Connecting the sensors
Installation
Cable cross section for sensor connections: Min. 0.4 mm
2
Total cable length: Max. 50 m (sensors and bus).
NOTE! Cable lengths above 100 m may cause noise sensibility
(EMC).
Establish the jumper from 16 to common terminal.
15 and 16 System device bus
17 and 16 Outdoor sensor (S1) ESMT
18 and 16 Room sensor (S2) ESMR
19 and 16 Flow sensor (S3) ESMU/ESMA/ESMC
20 and 16 Return sensor (S4) ESMU/ESMA/ESMC
Terminal Description Type (recommended)
14
Placing the temperature
sensors
Room temperature sensor
(ESMR, ECA 60 and 61 remote control)
Place the room sensor in the room where the temperature
is to be controlled. Do not place it on outside walls nor
close to radiators, windows or doors.
It is important that the sensors are mounted in the correct
position in your heating system.
Special attention should be paid to the following sensors.
Outdoor temperature sensor
(ESMT type)
The outdoor sensor should be mounted on that side of the
building where it is less likely to be exposed to direct
sunshine. It should not be placed close to doors, windows
or air outlets.
Return temperature sensor
(ESMU, ESMA or ESMC types)
The return sensor should always be placed in/on a pipe
with return water flow.
Installation
Flow temperature sensor
(ESMU, ESMA or ESMC types)
Place the sensor max. 15 cm from the mixing point. In
systems with heat exchanger, Danfoss recommends the
ESMU-type to be inserted into the exchanger flow outlet.
Make sure that the surface of the pipe is clean where the
sensor is mounted.Do not move the sensor after it has
been fastened in order to avoid damage to the sensor ele-
ment.
15
Adapting the ECL Comfort
controller
While the set-up is in operation, the data transfer-display
will appear.
After initialising, the display will return to the standard dis-
play line C of the yellow side of the ECL Card.
The controller is now ready to control the selected
heating system. You can make your own adjustments/
settings for daily use in the basic set-up and change the
extended service settings.
Installation
Open the lid and switch on the controller. The display
shows the heating system type and the software version.
P
10
03
1
P03
8
0 3 6 9 12 15 18 21 24
1
3
5
C
3
19
Accept to set up the selected system.
Select the heating system type printed on your
ECL Card.
Insert the ECL Card with the grey side facing you.
See section 16 for general principles of operation and
section 17 for setting the time and date.
Select the grey side of the ECL Card for the
basic set-up and the extended service
parameters.
Basic set-up
16
Adjusting the ECL Card
settings
If several controllers are installed in the heating system you
can write a title on the ECL Card with a permanent ink pen.
Changing from one side of the ECL Card to the other
When changing from the grey side of the ECL Card to the
yellow side, you will always enter line C and the standard
display.
Changing from the yellow side to the grey side, you will al-
ways enter line A - Time and date.
See opposite page.
General principles
When the controller is connected and operating you can
check and adjust all or some of the basic settings
referring to the grey side of the ECL Card. Select the grey
side of the ECL Card.
Use the arrow buttons to move from line to line
of the ECL Card, for example line 2:
Use the minus/plus buttons to adjust the
setting(s).
In some displays more than one setting or
value can be adjusted. Use the shift button to
switch between the options. The chosen value
flashes in the range indicator.
8
0 3 6 9 12 15 18 21 24
1
3
5
C
3
19
Line
indicator
Settings to
be adjusted
Value in
range indicator
0
1
094
2
1
ON
17
Setting the time and date -
Line A
Basic set-up
In case of a power failure which lasts longer than 12 hours,
the time and date have to be set again.
All other settings are stored when programmed.
Go to line A.
Use the shift button to switch between hours,
minutes, year, month and day
Set the correct time and date
Use the yellow side of the ECL Card to enter the day
plan settings.
See User’s Guide, section 4.
The grey side of the ECL Card.
09
01
5609
5
A
3
1
Actual time
Month, day
Year
Basic set-up
Monitoring temperatures and
system units - Line B
18
When the circulation pump is operating, the activation
direction of the valve is indicated with arrows below the
pump symbol.
If a sensor is not mounted or is disconnected, the display
will indicate it as “
- -”.
If the sensor is short-circuited, the display will indicate it as
“
- - - “.
If you are in doubt, remove the controller and check the
ohmic value between the relevant sensor terminals.
Go to line B.
Push the shift button to see:
- the calculated flow temperature
- the return temperature set point
The grey side of the ECL Card.
5
1
1
ON
036
B
Controlled units
Return temperature
Flow
temperature
State indicator
Relationship between temperature and ohmic value
-10°C 961 Ohm
0°C 1000 Ohm
10°C 1039 Ohm
20°C 1078 Ohm
30°C 1117 Ohm
40°C 1156 Ohm
50°C 1195 Ohm
60°C 1234 Ohm
70°C 1273 Ohm
-50
800
900
1000
1100
1200
1300
1400
1500
1600
-25 0 25 50 75 100 125 150
Temperature
Ohm
19
Manual control - Line B
Basic set-up
Go to line B.
Shift to manual mode
Select the unit you want to control. The
selected unit symbol flashes.
The grey side of the ECL Card.
Check the activation direction of the motorized valve either
by looking at it or by feeling whether the temperature of the
actual pipe changes as expected.
Valves close or open when the
relevant button is pressed.
Pump is switched off or on
1
ON
when the
relevant button is pressed.
1
1
Controlled
units
Controller mode
5
1
1
ON
036
B
Shift away from manual mode
Basic set-up
Setting the heat curve - Line C
20
Go to line C.
The symbol for the slope of the heat curve will
flash.
Adjust the slope of the heat curve, if required.
If you want to adjust the parallel displacement of
the heat curve, push the shift button. The symbol
for the parallel displacement will flash.
Setting range Factory setting
-9 ... +9 0
Parallel displacement
Make your adjustment
The grey side of the ECL Card.
Setting range Factory setting
0.2 ... 3.4 1.8
Slope
1
1
ON
8
C
1
0
Slope
Displacement
Basic set-up
-20 -10 0 10 20-30
10
20
30
40
50
60
70
80
90
1,4 1,8
1,0
0,6
0,2
2,2
C
C
Floor heating systems
This controller is factory set for radiator systems which are
typically high flow temperature systems.
To control floor heating systems, which are typically low flow
temperature systems, you need to change the heat curve
according to your system type.
Setting range Typical setting
Slope
0.2 ... 3.4 1.0
Setting range Typical setting
-9 ... +9 0
Parallel displacement
Basic set-up
Heating cut-out - Line 1
21
Setting range Factory setting
10 ... 30 °C 18°C
1
1
ON
8
1
1
1 Limit for heating cut-out (based on high outdoor
temperature)
Go to line 1.
The grey side of the ECL Card.
Set the value for outdoor temperature at which
you want the heating system to stop.
This function can save energy by stopping the heating
system when the outdoor temperature gets above a set limit.
The heating system is activated again when the actual
outdoor and the accumulated temperatures get below the set
limit.
The accumulated Tout symbolises the heat stored in the
building.
18°C
Temp
Actual T
out
Accumulated T
out
Time
Heating Heating off Heating
Flow temperature limits -
Line 2
22
Basic set-up
Setting range Factory setting
10 ... 110 °C min. 40 °C max. 90 °C
2 Flow temperature min.-, max. limits
Go to line 2.
The left end of the range indicator flashes. Adjust
the min. limit of your heating system.
Select the max. limit. The right end of the range
indicator will flash.
Adjust the max. limit.
The grey side of the ECL Card.
0
1
094
2
1
ON
Max. flow
temperature
Min. flow
tempera-
ture
Temperature
range for flow
temperature
Basic set-up
Room temperature influence -
Line 3
23
This section is only relevant if you have installed a room
sensor. There are two basic principles for control of the
room temperature influence:
A: Max. room temperature limitation
Use this limitation if your heating system is fully equipped
with radiator thermostats and you also want to obtain a
max. limitation of the room temperature. The controller will
allow for free heat gains, i.e. solar radiation or heat from a
fire place, etc.
The max. influence determines how much the
room temperature should influence the flow
temperature.
Go to line 3.
Select the max. influence.
The bar below the range indicator flashes in
the right side of the display.
Adjust the max. influence.
+
÷
Influence
Max. limitation
T
ROOM
The grey side of the ECL Card.
Setting range Factory setting
0 ... 99/-99 ... 0 min. 0 max. -40
3 Room temperature influence
Set
Example
The actual room temperature is 2 degrees too high.
The influence at max. limitation (right corner of the display) is
set to -40.
The influence at min. limitation (left corner of the display) is
set to 0.
Heat curve H is 1.8.
Result:
The flow temperature reference is changed by
2 x -40 x 0.1 x H = -14.4 degrees.
1
1
ON
-040
3
Min.
influence
Max.
influence
/