Danfoss ECL Comfort 300 - C35 Operating instructions
- Type
- Operating instructions
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 ensures you of the following;
• Room and hot water 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 will guide 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 which are shown in the relevant sections of this
guide.
VI.7C.D1.02
Installation
Note!
System diagrams in this instruction are principal drawings
and do not contain all components which are necessary in
heating systems.
Identifying the system type
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.
10
Installation
Alternatives using the same settings:
• Heat exchanger or direct district heating
• 2-, 3-, or 4-way control valve
Alternatives which require different settings:
• Primary or secondary connected hot water circuit
• Charging pump or diverting valve in charging circuit
Heating system type 2
Line 51 Water pump / diverting valve
Setting
OFF
Line 52 Closed valve / PI-regulation
Setting
OFF
Line 53 PI reference when heating HW
Setting
OFF
Heating system type 1
Line 51 Water pump / diverting valve
Setting
ON
Line 52 Closed valve / PI-regulation
Setting
OFF
Line 53 PI reference when heating HW
Setting
OFF
Heating system type 3
Line 51 Water pump / diverting valve
Setting
ON
Line 52 Closed valve / PI-regulation
Setting
OFF
Line 53 PI reference when heating HW
Setting
ON
Heating system type 4
Line 51 Water pump / diverting valve
Setting
ON
Line 52 Closed valve / PI-regulation
Setting
OFF
Line 53 PI reference when heating HW
Setting
ON
Installation
Installation
Mounting the 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 on a wall
Socket for wall mounting: 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.
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 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.
Connecting the sensors
Installation
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
22 and 16 Hot-water sensor (S6) ESMU/ESMB
Terminal Description Type (recommended)
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).
Connecting the 230V a.c. units
12
Electrical connections -
230V a.c.
Installation
Establish these jumpers:
Jumper from 1 to 5
Jumper from 5 to 10
Jumper from 10 to 12
Jumper from 2 to common N-terminal
1 L Voltage supply
230V a.c.
2 N Voltage supply
230V a.c.
3 M1 Gear motor - open max 0.2 A 230V a.c.
4 M1 Gear motor - close
alt.: ABV thermo
actuator max 0.2 A 230V a.c.
5 M1 Phase for motor exit
9 P1 Circulation pump for
heating circuit max 4(2)A 230V a.c.
10 Phase for pump relay
11 P2 Loading pump/
mixing valve max 4(2)A 230V a.c.
12 Phase for pump relay
Terminal Description Max. load
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
14
Placing the temperature
sensor types
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:
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 or close
to radiators, windows or doors.
Outdoor temperature sensor
(ESMT type)
The outdoor sensor should be mounted on the north side of
the building where it is less likely to be exposed to direct
sunshine. It should not be placed close to doors or
windows.
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 element.
Return temperature sensor
(ESMU, ESMA or ESMC types)
The return sensor should always be placed max. 15 cm
from the mixing point. It should always be placed on a
pipe where the water flow never stops.
Hot water temperature sensor
(ESMU or ESMB types)
Place the hot water sensor according to
the manufacturer’s specification.
Installation
Installation
Understanding the ECL Card
The ECL Card contains factory settings for a standard
heating system. If the actual heating system differs from
the standard system, the ECL controller must be
adjusted accordingly. After the adjustment, the new
settings should be stored on the ECL Card.
For ECL Card copying and daily use including
adjustment of temperatures and time periods, insert the
ECL Card with the yellow side facing you.
For system set-up adjustments, the grey side of the
ECL Card - the installer’s side - must be facing you.
As a main rule, the ECL Card should always remain in
the controller during service, maintenance and
settings.
If the card is removed please note that:
• The controller settings are locked
• The card must not be exposed to direct heat or
sunshine
If several controllers are installed in the heating system
you may want to write a title on the ECL Card with a
permanent ink pen.
15
Inserting the ECL Card
The controller is now ready to be set to control your
heating system.
Installation
How to insert your ECL Card the first time
After the power has been switched on, open the lid on
the front side of the controller.
Place the ECL Card with the yellow side facing you. This
enables the controller to read the card data. The controller
immediately starts to copy the factory settings and heating
system type from the card. After copying, the display will
show the heating system type the controller is set to control.
After approx. 10 seconds the display will change to
display C.
Desired room
temperature
Line
Circuit
Time
Outdoor
temperature
C
C99
Y
0
P
C53
100 101
8
0 3 6 9 12 15 18 21 24
1
913
5
C
3
17
Setting the time and date -
Line A
Basic set-up
The grey side of the ECL Card.
In case of a power failure which lasts longer than 12 hours,
the time and the date have to be set again.
All other settings are stored as programmed.
Go to line A.
09
01
56019
5
A
3
Actual time
Month, day
Year
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 card to enter the day plan
settings.
See User’s Guide, section 4.
16
Adjusting the ECL Card
settings
General principles
When the copying is finished display C will appear
Basic set-up
When the controller is connected and operating you can
check and adjust all or some of the basic settings on the
grey side of the ECL Card.
CYp
0
O9C
8
0 3 6 9 12 15 18 21 24
1
913
5
C
3
Update of the ECL Card after maintenance and service
All new settings can be stored on the ECL Card. For details
about copying, see section 34. Insert the ECL Card with the
yellow side facing you
You can make other changes in the day plan, set time and
date or change settings
(see User’s Guide).
Use the arrow buttons to move from line to
line of the ECL Card, for example line 2:
0
1
1
ON
2
ON
094
2
Settings to
be adjusted
Value in
range indicator
Line
indicator
Circuit
Use the minus/plus buttons to adjust the settings
In some displays more than one setting or value
can be adjusted. Use the shift button to switch
between the possibilities
The circuit selector shifts between circuit 1and 2.
You can adjust all settings and service parameters
individually in both circuits.
Go to line 9
Accept to copy as indicated. No other keys are ac-
tive
19
Go to line B
Manual control - Line B
Basic set-up
Check the turning direction of the motorized valve either
by looking at it or by feeling whether the temperature of
the actual pipe changes as expected.
The grey side of the ECL Card.
Shift to manual mode
5
1
2
ON
036
B
1
ON
Controlled
units
Controller
mode
Select the unit you want to control. The
selected unit symbol will flash.
1
Valves close or open while the
relevant button is pressed.
Pumps are switched off or on when the
relevant button is pressed
1
The same operation can be carried out in either
circuit. Push button to select circuit II.
Monitoring temperatures and
system units - Line B
18
Basic set-up
The activity of the motorized valve is shown as arrows
below the valve symbol. When the circulation pump is
operating, it is indicated as ON 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 terminals.
Push button to select circuit II, see opposite
page.
The grey side of the ECL Card.
Go to line B
5
1
1
ON
2
ON
036
B
Controlled units
State indicator
Return temperature
Flow
temperature
Push the shift button to see calculated flow and
return temperature set points
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
Basic set-up
-20 -10 0 10 20-30
10
20
30
40
50
60
70
80
90
C
C
0,2
0,6
1,0
1,4 1,8 2,2 2,63,0 3,4
Setting the heat curve - Line C
20
Basic set-up
Circuit Setting range Factory setting
I 0.2 ... 3.4 1.8
Slope
Circuit Setting range Factory setting
I -9... +9 0
Parallel displacement
The grey side of the ECL Card.
Go to line C.
The symbol for the slope of the heat curve
will flash.
8
C
1
0
1
1
ON
2
ON
Slope
Displacement
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.
Make your adjustments.
Floor heating systems
This controller is factory set for radiator systems which typically
are high flow temperature systems.
To control floor heating, which typically is low flow temperature
systems, you need to change the heat curve according to your
type of system.
Circuit Setting range Typical setting
Slope
Circuit Setting range Typical setting
I -9 ... +9 0
Parallel displacement
I 0.2 ... 3.4 1.0
0
1
1
ON
2
ON
094
2
Flow temperature limits -
Line 2
22
Max. flow
temperature
Min. flow
temp.
Temperature
range for flow
temperature
Basic set-up
The grey side of the ECL Card.
Circuit Setting range Factory setting
I 10 ... 110 °C min. 40 °C max. 90 °C
2 Flow temperature min., max. limits
Go to line 2
Adjust the min. limit to your heating system. The
left end of the range indicator flashes
Select the max. limit. The right end of the range
indicator flashes
Adjust the max. limit
Heating cut-out - Line 1
21
Basic set-up
The grey side of the ECL Card.
1
2
ON
8
1
1
1
ON
Circuit Setting range Factory setting
I 10 ... 30 °C 18 °C
1 Limit for heating cut out
Go to line 1
This function can save energy by stopping the heating
system when the outdoor temperature reaches a set limit.
The heating system is reactivated when the actual outdoor and
the accumulated temperatures reach the set difference.
18°C
Temp
on
off
Heating
Actual T
out
Accumulated T
out
Set the outdoor temperature limit at which you
want the heating system to stop.
Basic set-up
B: Reference room control
Used if your heating system is not equipped with radiator
thermostats and you choose the room with room sensor as
a temperature reference for the rest of the rooms.
(However, should you have a few radiator thermostats
installed, make sure that they are fully open).
The room sensor in the reference room registers
the difference between the desired and the
actual room temperature. The flow temperature
reference will be corrected to eliminate this
difference.
Example
The actual room temperature is 2 °C too low.
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 20. Heat curve H is 1.8.
Result:
The flow temperature reference is increased
by 2 x 20 x 0.1 x H = 7.2 °C.
Set a positive value for min. influence and a
negative value for max. influence.
+
÷
T
ROOM
set
Influence
Min. limitation
Max. limitation
T
ROOM
Room temperature
influence - Line 3
23
Basic set-up
The grey side of the ECL Card.
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.
Select the max. influence.
The bar below the range indicator flashes in
the right side of the display.
Go to line 3.
The max. influence determines how much the
room temperature should influence the flow
temperature.
Circuit Setting range Factory setting
I 0 ... 99/-99 ... 0 min. 0 max. -40
3 Room temperature influence
1
2
ON
0-40
3
1
ON
Min.
influence
Max.
influence
Adjust the max. influence.
+
÷
T
ROOM
set
Influence
Max. limitation
T
ROOM
Example
The actual room temperature is 2°C 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 decreased
by 2 x -40 x 0.1 x H = -14.4°C.
Basic set-up
If you want to tune the PI-regulation precisely, you can
use the following method:
• Set the integration time (line 5) to its max. value (999 sec.).
• Decrease the value for the proportional band (Line 4) until
the system starts hunting with a constant amplitude (it might
be necessary to force the system by setting an extreme
value).
• Find the critical time period on the temperature recording or
use a stop watch.
This time period will be characteristic for the system, and you
can evaluate the settings from this critical period.
Integration time = 0.85 x critical time period
Proportional band = 2.2 x proportional band value in the
critical time period.
If the regulation seems to be too slow, you can decrease the
proportional band value by 10 %.
How to calculate the running time of the motorized valve
The running time of the motorized valve is calculated using the
following method:
Running time = Valve stroke (mm) x actuator speed (sec/mm)
Example:
5.0 mm x 15 sec/mm = 75 sec.
VS2 15 3.0 AMV 100 90 270
VS2 15...25, VM2 15...25, AMV(E)
VB2 15...20 5.0 10, 20 15 75
VS2 15...25, VM2 15...25,
VB2 15...20 5.0 AMV(E) 30 3 15
VM2 32, VB2 25 7.0 AMV(E) 20 15 105
VM2 32, VB2 25 7.0 AMV(E) 30 3 21
Valve type Valve Actuator Actuator Running
stroke type speed time
(mm) (sec./mm) (sec.)
Time
Temp
Critical time period
Setting the PI-regulation
Line 4 - 7
26
Go to line 4
Set the proportional band.
A higher value will result in a stable, but slow
regulation of the flow temperature
Go to line 5
Set a large integration constant to obtain a
slow but stable reaction to deviations.
A small integration constant will make the
controller react fast but with less stability
Basic set-up
The grey side of the ECL Card.
Go to line 6.
Set the running time of the motorized valve
according to the example on opposite page.
This is the time it takes the valve to move from
closed to fully open position.
Set the neutral zone to a high value, if you can
accept a large variation in flow temperature.
When the actual flow temperature lies within
the neutral zone, the controller does not
activate the motorized valve.
Go to line 7.
Circuit Setting range Factory setting
I 1 ... 250 K 80 K
4 Proportional band
Circuit Setting range Factory setting
I 5 ... 999 sec. 30 sec.
5 Integration constant
Circuit Setting range Factory setting
I 5 ... 250 sec. 35 sec.
6 Running time of the motorized valve
Circuit Setting range Factory setting
I 0 ... 9 K 3 K
7 Neutral zone
1
2
ON
4
80
1
ON
Setting to be adjusted
The bar shows you the
setting
Line
indicator
Select circuit II
Go to line 2
The difference between cut-in temperature and cut-out
temperature during hot water charging.
Basic set-up
1
1
ON
2
ON
6
2
Circuit Setting range Factory setting
II 1 ... 30 K 6 K
2 Hot water temperature difference
Set the hot water temperature difference.
Charging temperature difference
Hot water difference
Charging temperature
Desired hot water temperature
Hot water controller -
Line 1 and 2
27
Here you can set the difference between charging
temperature and desired hot water temperature.
Basic set-up
The grey side of the ECL Card.
Example:
Desired hot water temperature 60 °C
Charging temperature difference 15 K
Charging temperature
(60+15=) 75 °C
Circuit Setting range Factory setting
II 1 ... 30 K 15 K
1 Charging temperature difference
Select circuit II
Go to line 1
1
1
ON
2
ON
5
1
1
Line
Circuit
Set the difference. Set a high value if you want
the hot water system to reach the desired
temperature in a short period of time.
Note! A too high charging temperature might cause
deposits in the heat exchanger.
Adapting the ECL Comfort controller to the heating
system
29
Check list
Turn the ECL Card so that the grey side faces
you.
Set the time and the date (Line A).
See section 17
Setting time and date
Check all settings on the grey side of the
ECL Card.
See sections
20 to 25
✓
Control & overviews
Please check all settings in the extended
service parametres line
10 to 199.
29
Check list
✓
Is the ECL Comfort controller ready for use?
Make sure that the power supply is connected to
terminals 1 (Live) and 2 (Neutral).
See section 12
Electrical connections
Check that valves and pumps are connected
to the correct terminals.
See section 12
Electrical connections
Check that all sensors are connected to the
correct terminals.
Mount the controller, and switch on the power.
Insert the ECL Card with the yellow side facing
you.
See section 15
Inserting the ECL Card
Select manual operation in the controller mode.
See section 2
in the user’s guide.
Check that valves open and close, and that
pumps start and stop when operated manually.
See section 19
Manual control
Check that the temperatures shown in display
A and B match the actual sensors, both for
circuit I (heating) and circuit II (hot water).
See section 1
in the user’s guide.
Control & overviews
Control & overviews
ECL Card settings
(circuit II: Hot water service)
30
Charging temperature
1 ... 30 K 15 K
Set the temperature the system needs in
order to be able to reach the desired hot
water temperature, see section 27.
2
Hot water temperature difference
1 ... 30 K 6 K
Set the difference between the cut-in and
cut-out limits of the hot water temperature,
see section 27.
Setting range Factory setting Your settings
A Time and date
B System information
C
See sections 16 & 17
See sections 18 & 19
Control & overviews
1
ECL Card settings
(circuit I: Heating)
30
Slope
0.2 ... 3.4 1.8
Set the slope of the heat curve,
see section 20
Parallel displacement
-9 ... +9 0K
Set the parallel displacement of the
heat curve, see section 20
1
Limit for heating cut out
10 ... 30 °C 18 °C
Save energy by stopping the heating system
when the outdoor temperature reaches
a certain limit, see section 21.
2
Flow temperature min./max. limits
10 ... 110 °C min. 40, max. 90 °C
The limits for minimum and maximum
flow temperature, see section 22.
3
Room temperature influence
0 ... 99/-99 ... 0 min. 0, max. -40
The room temperature’s influence on the
flow temperature control, see section 23.
4
Proportional band
1 ... 250 K 80 K
Set the PI-regulation, see section 26.
5
Integration constant
5 ... 999 sec. 30 sec.
Set the PI-regulation, see section 26.
6
Motor / valve running time
5 ... 250 sec. 35 sec.
Set the PI-regulation, see section 26.
7
Neutral zone
0 ... 9 K 3 K
Set the PI-regulation, see section 26.
A Time and date
B System information
C Heat curve
Setting range Factory setting Your settings
See sections 16 & 17
See sections 18 & 19
See section 20
Control & overviews
circuit
Service parameters
31
Circuit II (hot water service)
Line Setting range Factory setting Your setting
51 Water pump / diverting valve
ON/OFF OFF
52 Closed valve / PI regulation
ON/OFF OFF
53 PI reference when heating hot water
ON/OFF OFF
circuit
Service parameters
31
10 Choice of time control unit
0 ... 5 0
11 Reduced temperature dependent
on outdoor temperature
OFF/-29 ... +10 °C -15 °C °C
12 Boost
0 ... 99% 0% %
14 Optimising constant
OFF/10 ... 59 OFF
15 Adaptive function of room
temperature
OFF/1 ... 30 OFF
20 Optimisation based on room/outdoor
temperature
ON/OFF OFF
21 Total stop
ON/OFF OFF
22 Pump motion
ON/OFF ON
23 Valve motion
ON/OFF OFF
24 Gear motor/thermo actuator
ON/OFF ON
30 Limitation of return temperature
10 ... 110 °C 50 °C °C
35 Return temperature influence - max.
-9.9 ... 0 ... +9.9 °C -2 °C °C
36 Return temperature influence - min.
-9.9 ... 0 ... +9.9 °C0 °C °C
37 Adaptive function of return limiter
OFF/1 ... 50 25
198 Summer time change
ON/OFF ON
199 Slave address
0 ... 9 15
Circuit I (heating)
Line Setting range Factory setting Your setting
1
Control & overviews
Extended Service
32
Service parameters
The grey
side of the
ECL Card.
Select between
Note! The time control of the hot water circuit is always
dedicated to the day plan of circuit II.
ECL Comfort controller - day plan circuit I
Room panel ECA 60 or remote control ECA
61 on address A
Room panel ECA 60 or remote control ECA
61 on address B
0
1
2
Limit of the outdoor temperature at which the reduced
temperature setting is switched off.
Circuit Setting range Factory setting
I OFF / -29 ... +10 °C -15 °C
11 Reduced temperature dependent on outdoor
temperature
-29 to +10 °C
The setting of reduced temperature depends on
the outdoor temperature, when the outdoor
temperature is above the set limit.
The lower the outdoor temperature the less the
temperature reduction. When the outdoor
temperature is below the set limit, there is no
temperature reduction.
OFF: The reduced temperature setting will be
constant at all outdoor temperatures.
100%
0%
-20 -10-29 0 10 2015
Reduction
Temp
o
C
Extended service
32
Adjusting the service
parameters
Extended service
In addition to the settings in line 1 to 7 on the grey side
of the ECL Card, there is an extended service menu
from line 10 and onwards.
When you have entered all your personal settings, turn
the ECL Card over so that the yellow side faces you.
If you want to copy the new settings to the ECL Card
(recommended by Danfoss), see section 34 “Copying
data with the ECL Card”.
Make a note of your new settings on the parameter list
in section 31.
Push repeatedly to reach the lines
numbered 10 and onwards.
Line
number
Value
Range indicator
0
01
Now you can move to any line of your choice.
Set the parameter value.
You can select any of the two circuits no
matter what line you are in. You will not
necessarily enter the same line number.
See the service parameters in section 31.
Dedicates the unit for the time control of the comfort and
reduced temperature periods
Circuit Setting range Factory setting
I 0 ... 5 0
10 Choice of time control unit
Extended service
The adaptive function will eliminate the difference
between the required and actual room temperature, by
integrating the difference and adjusting the reference for
the flow temperature.
OFF: No optimisation. The heating starts and stops
at the times set in the week plan
32
Service parameters
Optimises the start and stop times for the reduced temperature
period to obtain the best comfort at the lowest energy
consumption.
Circuit Setting range Factory setting
I OFF / 10 ... 59 OFF
14 Optimising constant
Controls how fast the room temperature adapts to the
desired temperature.
Circuit Setting range Factory setting
I OFF / 1 ... 30 OFF
15 Adaptive function of room temperature
41
25
Heat accumulation
of the building:
1 Light radiator system
2 Medium radiator system
3 Heavy radiator system
4 Medium floor heating system
5 Heavy floor heating system
Dimensioning
temperature:
0
1
•
•
9
-50 °C
-45 °C
•
•
-05 °C
The grey
side of the
ECL Card.
Adjust the optimising constant by choosing the
left as well as the right digit from the lists
below.
Note! The digit combinations will appear as
groups in numerical order
Dimensioning temperature: The lowest outdoor
temperature at which the heating system can obtain
the desired temperature.
OFF: The adaptive function is cancelled.
1 : The desired temperature is adapted
quickly
30 : The desired temperature is adapted
slowly
Extended service
Set the percentage at which you want the flow
temperature to be changed temporarily.
In order to shorten the heating period after a reduced
temperature period, the flow temperature can be
increased temporarily.
If a room sensor is installed, the boost stops when the
optimising period is over or the room temperature has
been reached.
32
Service parameters
Shortens the heating period by increasing the flow
temperature by the percentage you set.
Circuit Setting range Factory setting
I 0 ... 99% 0%
12 Boost
The grey
side of the
ECL Card.
Extended Service
Extended service
In district heating systems you have to switch off the valve
motion.
Set the anti-blocking function ON or OFF.
The valve motion is switched on.
The valve receives a signal to open
and close every third day.
The valve motion is switched off.
Gear motor
Thermo actuator
Here you can choose the actuator type.
Circuit Setting range Factory setting
I ON / OFF ON
24 Gear motor / thermo actuator
ON:
OFF:
The pump is switched on for 1
minute every third day.
The pump motion is switched off.
ON:
OFF:
Set the anti-blocking function ON or OFF.
ON:
OFF:
Select actuator type:
32
Service parameters
Exercises the valve to avoid blocking in periods when the
heating is off.
Circuit Setting range Factory setting
I ON / OFF OFF
23 Valve motion
The grey
side of the
ECL Card.
Extended service
Select ON or OFF for total stop function.
OFF: No total stop.
Select the calculation method:
ON: Total stop function is ON. At total stop the
flow temperature reference is lowered to
10 °C and the minimum setting of the flow
temperature limit of line 2 (see section
22) is overruled in the reduced
temperature period.
Calculation based on the room
temperature (only when a room
sensor is used).
Calculation based on the outdoor
temperature. Use this setting if you
have no room sensor.
ON:
OFF:
32
Service parameters
20 Optimisation based on room/outdoor temperature
The optimised start and stop time calculation can be based
on either the room temperature or on the outdoor temperature.
Circuit Setting range Factory setting
I ON / OFF OFF
The grey
side of the
ECL Card.
Ref. Temp
T
REF
T
MIN
10 °C
Time
T
REF
Time
Ref. Temp
T
MIN
10 °C
Circuit Setting range Factory setting
I ON / OFF OFF
Here you decide whether you want a total stop of reduced
temperature period.
21 Total stop
Exercises the pump in periods without heating to avoid
blocking.
Circuit Setting range Factory setting
I ON / OFF ON
22 Pump motion
Extended service
Set the influence of the min. return
temperature limitation.
If the displayed value does not equal 0, the
function prevents the return temperature from
falling below the limit set in line 30.
Influence larger than 0:
The reference for the
flow temperature is displaced upwards, when the
return temperature is below the setting in line
30.
Influence smaller than 0:
The reference for the
flow temperature is displaced downwards, when
the return temperature is below the setting in line
30.
Adjust the adaptive function of the return
limiter. The setting will eliminate the difference
between required and actual return temperature,
by integrating the difference and adjusting the
reference for the flow temperature.
0FF: The heating curve will not be adjusted
1 : The heating curve will be adjusted
quickly
50 : The heating curve will be adjusted
slowly
32
Service parameters
How much the flow temperature should be influenced.
Circuit Setting range Factory setting
I +/- 0 ... 9.9 0
36 Return temperature influence - min. limitation
Example
Return limit is set to 50 °C
Influence is set to 2
Actual return temperature is 2°C too low (48 °C)
Result:
The flow temperature reference is increased with 2 x 2 = 4 °C
Controls how fast the return temperature adapts to the desired
temperature.
Circuit Setting range Factory setting
I OFF / 1 ... 50 25
37 Adaptive function of return limiter
The grey
side of the
ECL Card.
+
0
÷
Min. limitation < 0
Influence
Return Temp.
Return limit
Min. limitation > 0
Extended service
When the limit of the return temperature is exceeded,
the controller automatically changes the flow tempera-
ture reference to obtain a set reference to the required
return temperature. The factors for the definite function
of the return limiter are set in lines 35 and 36.
Set the influence of the max. return
temperature limitation.
If the displayed value does not equal 0, the
function prevents the return temperature from
exceeding the limit set in line 30.
Influence larger than 0:
The reference for the
flow temperature is displaced upwards, when the
return temperature exceeds the limit set in line
30.
Influence smaller than 0:
The reference for the
flow temperature is displaced downwards, when
the return temperature exceeds the limit set in
line 30.
Set the acceptable return temperature limit.
32
Service parameters
Here you set which return temperature you accept for the heating
circuit.
Circuit Setting range Factory setting
I 10 ... 110 °C 50 °C
30 Return temperature limitation
How much the flow temperature reference should be influenced.
Circuit Setting range Factory setting
I +/- 0 ... 9.9 - 2
35 Return temperature influence - max. limitation
The grey
side of the
ECL Card.
+
0
÷
Max. limitation < 0
Influence
Return Temp.
Return limit
Max. limitation > 0
Example
Return limit is set to 50 °C.
Influence is set to - 2.
Actual return temperature is 2°C too high.
Result:
The flow temperature is lowered with 2 x - 2 = -4 °C.
Normally, the value set in line 35 is lower than 0 in district
heating systems and equals 0 in boiler systems.
Normally, the setting in line 36 is 0 in district heating systems
and lower than 0 in boiler systems.
With a normal return limitation you have to set a 0 in either line
35 or 36.
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Danfoss ECL Comfort 300 - C35 Operating instructions
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- Operating instructions
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