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Installation Guide
ECL Comfort 210 / 310, application A231 / A331
1.0 Table of Contents
1.0 Table of Contents ............................................... 1
Important safety and product information. . . . . . . . . . . . . . . . . . . . . 2
2.0 Installation ........................................................ 4
Placing the temperature sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Inserting the ECL Application Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Navigation, ECL Application Key A231 / A331 . . . . . . . . . . . . . . . . 40
6.0 Common controller settings.............................. 85
Introduction to ‘Common controller settings’ . . . . . . . . . . . . . . . . 85
7.0 Miscellaneous .................................................. 95
3.0 Daily use ......................................................... 46
Understanding the controller display . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.0 Settings overview ............................................ 53
5.0 Settings, circuit 1 ............................................. 55
Danfoss District Energy VI.LG.P1.02
DEN-SMT/DK 1
Installation Guide ECL Comfort 210 / 310, application A231 / A331
1.1 Important safety and product information
1.1.1 Important safety and product information
This Installation Guide is associated with ECL Application Key A231
(order code no. 087H3805).
The A231 Key contains two sets of applications: one set (A231.1 /
A231.2) and another set (A331.1 / A331.2).
The functions can be realized in:
ECL Comfort 210 (A231) for simple solutions or
ECL Comfort 310 (A231 / A331) for e.g. M-bus and other communication as well as primary pressure measurement.
The applications A231 / A331 comply with ECL Comfort controllers
210 / 310 as of software version 1.10 (visible at start-up of the controller and in ‘Common controller settings’ in ‘System’).
Additional documentation for ECL Comfort 210 and 310, modules and accessories is available on http://den.danfoss.com/.
Safety Note
To avoid injury of persons and damages to the device, it is absolutely necessary to read and observe these instructions carefully.
Necessary assembly, start-up, and maintenance work must be performed by qualified and authorized personnel only.
The warning sign is used to emphasize special conditions that should be taken into consideration.
This symbol indicates that this particular piece of information should be read with special attention.
As this Installation Guide covers several system types, special system settings will be marked with a system type. All system types are shown in the chapter: 'Identifying your system type'.
°C (degrees Celsius) is a measured temperature value whereas K
(Kelvin) is a number of degrees.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
The ID no. is unique for the selected parameter.
Example
11174
12174
First digit
1
-
1
-
Second digit
1
Circuit 1
2
Circuit 2
Last three digits
174
Parameter no.
174
Parameter no.
If an ID description is mentioned more than once, it means that there are special settings for one or more system types. It will be marked with the system type in question (e.g. 12174 - A266.9).
Disposal Note
This product should be dismantled and its components sorted, if possible, in various groups before recycling or disposal.
Always follow the local disposal regulations.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.0 Installation
2.1 Before you start
The application A231.1 is very flexible. These are the basic principles:
Heating:
Typically, the flow temperature is adjusted according to your requirements. The flow temperature sensor S3 is the most important sensor. The desired flow temperature at S3 is calculated in the ECL controller, based on the outdoor temperature (S1).
The lower the outdoor temperature, the higher the desired flow temperature.
By means of a week schedule, the heating circuit can be in
‘Comfort’ or ‘Saving’ mode (two different temperature values for desired room temperature).
The motorized control valves M1 is opened gradually when the flow temperature is lower than the desired flow temperature and vice versa.
The return temperature S5 to the district heating supply should not be too high. If so, the desired flow temperature can be adjusted
(typically to a lower value), thus resulting in a gradual closing of the motorized control valve.
In boiler-based heating supply the return temperature should not be too low (same adjustment procedure as above).
Furthermore, the return temperature limitation can be dependent of the outdoor temperature. Typically, the lower the outdoor temperature, the higher the accepted return temperature.
The circulation pump in question is ON at heat demand or at frost protection.
The heating can be switched OFF when the outdoor temperature is higher than a selectable value.
The static pressure on the secondary side (consumer side) can 1) be measured as a 0 - 10 V signal (from a pressure transmitter) or
2) be a switch signal from a pressure switch. In case of a too low pressure, the refill water function will supplement with water from the supply side.
When the ECL Comfort controller operates as a slave, only the refill water valve is controlled. The master controls a common refill water pump for the entire system.
Typical A231.1 application:
S 1 ECL 210
R4
M1
P 3
S 5
V1
S 3
P 1
P 2
S 8
P S 7
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.
M1
V1
R4
S7
S8
P1
List of components:
S1 Outdoor temperature sensor
S3
S5
Flow temperature sensor
Return temperature sensor
P2
P3
Differential pressure switch
Pressure transmitter or pressure switch
Circulation pump
Circulation pump
Refill water pump
Motorized control valve
Solenoid valve, refill water valve
Relay output, alarm
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Danfoss District Energy
Installation Guide ECL Comfort 210 / 310, application A231 / A331
Application A231.1 in general:
The circulation pumps P1 and P2 work in shift according to a schedule. One pump is used as spare pump and the other pump is working. In case of malfunction (missing differential pressure) of one pump, the other pump will take over. An alarm will be generated and the defective pump can be inspected / repaired.
Alarm (relay 4) can be activated if:
• The actual flow temperature differs from the desired flow temperature.
• The activated circulation pump does not generate a pressure difference.
• The refill water function does not generate a pressure within a preset time.
Typical A231.1 application:
S 1 ECL 210
R4
M1
P 3
S 5
V1
S 3
P 1
P 2
S 8
P S 7
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
The application A231.2 is very flexible. These are the basic principles:
Heating:
Typically, the flow temperature is adjusted according to your requirements. The flow temperature sensor S3 is the most important sensor. The desired flow temperature at S3 is calculated in the ECL controller, based on the outdoor temperature (S1).
The lower the outdoor temperature, the higher the desired flow temperature.
The supply temperature (S2) is used to 1) control the S3 temperature in relation to the S2 temperature or 2) maximize the limit of the desired flow temperature.
The factory setting, where the supply temperature (S2) determines the desired flow temperature, does not change the desired flow temperature according to ‘Comfort’ or ‘Saving’ mode.
However, if the supply temperature (S2) determines a max.
limitation of the desired flow temperature, the ‘Comfort’ and
‘Saving’ mode will have two different temperature values for desired room temperature.
The motorized control valve M1 is opened gradually when the flow temperature is lower than the desired flow temperature and vice versa.
The return temperature S5 to the district heating supply should not be too high. If so, the desired flow temperature can be adjusted
(typically to a lower value), thus resulting in a gradual closing of the motorized control valve.
In boiler-based heating supply the return temperature should not be too low (same adjustment procedure as above).
Furthermore, the return temperature limitation can be dependent of the outdoor temperature. Typically, the lower the outdoor temperature, the higher the accepted return temperature.
The circulation pump in question is ON at heat demand or at frost protection.
The heating can be switched OFF when the outdoor temperature is higher than a selectable value.
The static pressure on the secondary side (consumer side) can 1) be measured as a 0 - 10 V signal (from a pressure transmitter) or
2) be a switch signal from a pressure switch. In case of a too low pressure, the refill water function will supplement with water from the supply side.
When the ECL Comfort controller operates as a slave, only the refill water valve is controlled. The master controls a common refill water pump for the entire system.
Typical A231.2 application:
S 1 ECL 210
R4
S 2
M1
P 3
S 5
V1
S 3
P 1
P 2
S 8
P S 7
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.
M1
V1
R4
P1
P2
P3
List of components:
S1 Outdoor temperature sensor
S2
S3
S5
Supply flow temperature sensor
Flow temperature sensor
Return temperature sensor
S7
S8
Differential pressure switch
Pressure transmitter or pressure switch
Circulation pump
Circulation pump
Refill water pump
Motorized control valve
Solenoid valve, refill water valve
Relay output, alarm
6 DEN-SMT/DK VI.LG.P1.02
Danfoss District Energy
Installation Guide ECL Comfort 210 / 310, application A231 / A331
Application A231.2 in general:
The circulation pumps P1 and P2 work in shift according to a schedule. One pump is used as spare pump and the other pump is working. In case of malfunction (missing differential pressure) of one pump, the other pump will take over. An alarm will be generated and the defective pump can be inspected / repaired.
Alarm (relay 4) can be activated if:
• The actual flow temperature differs from the desired flow temperature.
• The activated circulation pump does not generate a pressure difference.
• The refill water function does not generate a pressure within a preset time.
Typical A231.2 application:
S 1 ECL 210
R4
S 2
M1
P 3
S 5
V1
S 3
P 1
P 2
S 8
P S 7
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
The application A331.1 is very flexible. These are the basic principles:
Heating:
Typically, the flow temperature is adjusted according to your requirements. The flow temperature sensor S3 is the most important sensor. The desired flow temperature at S3 is calculated in the ECL controller, based on the outdoor temperature (S1).
The lower the outdoor temperature, the higher the desired flow temperature.
By means of a week schedule, the heating circuit can be in
‘Comfort’ or ‘Saving’ mode (two different temperature values for desired room temperature).
The motorized control valves M1 is opened gradually when the flow temperature is lower than the desired flow temperature and vice versa.
The return temperature S5 to the district heating supply should not be too high. If so, the desired flow temperature can be adjusted
(typically to a lower value), thus resulting in a gradual closing of the motorized control valve.
In boiler-based heating supply the return temperature should not be too low (same adjustment procedure as above).
Furthermore, the return temperature limitation can be dependent of the outdoor temperature. Typically, the lower the outdoor temperature, the higher the accepted return temperature.
The circulation pump in question is ON at heat demand or at frost protection.
The heating can be switched OFF when the outdoor temperature is higher than a selectable value.
The static pressure on the secondary side (consumer side) can 1) be measured as a 0 - 10 V signal (from a pressure transmitter) or 2) be a switch signal from a pressure switch. In case of a too low pressure, the refill water function will supplement with water from the supply side. The two refill water pumps are operated alternately.
When the ECL Comfort controller operates as a slave, only the refill water valve is controlled. The master controls a common refill water pump for the entire system.
Typical A331.1 application:
S 1
S 10
ECL 310
R6
S 3
P 1
P 2
S 9
P S 7
M1 S 5 S 8
V1
P 3
P 5
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:
S1 Outdoor temperature sensor
S3
S5
Flow temperature sensor
Return temperature sensor
S7
S8
S9
V1
Differential pressure switch
Pressure transmitter or pressure switch
Alarm input
S10 Pressure transmitter (for monitoring only)
P1 Circulation pump
P2
P3
P5
M1
Circulation pump
Refill water pump
Refill water pump
Motorized control valve
Solenoid valve, refill water valve
R6 Relay output, alarm
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Danfoss District Energy
Installation Guide ECL Comfort 210 / 310, application A231 / A331
Application A331.1 in general:
The circulation pumps P1 and P2 work in shift according to a schedule. One pump is used as spare pump and the other pump is working. In case of malfunction (missing differential pressure) of one pump, the other pump will take over. An alarm will be generated and the defective pump can be inspected / repaired.
Alarm (relay 6) can be activated if:
• The actual flow temperature differs from the desired flow temperature.
• The activated circulation pump does not generate a pressure difference.
• The refill water function does not generate a pressure within a preset time.
• The universal alarm inputs S9 is activated.
Modbus communication to a SCADA system can be established.
M-bus communication enables connection to flow or energy meter.
The controller can limit the flow or energy to a set maximum but also in relation to the outdoor temperature.
Furthermore, the M-bus data can be transferred to the Modbus communication.
Typical A331.1 application:
S 1
S 10
ECL 310
R6
S 9
P S 7
S 3
P 1
P 2
M1 S 5 S 8
V1
P 3
P 5
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
The application A331.2 is very flexible. These are the basic principles:
Heating:
Typically, the flow temperature is adjusted according to your requirements. The flow temperature sensor S3 is the most important sensor. The desired flow temperature at S3 is calculated in the ECL controller, based on the outdoor temperature (S1).
The lower the outdoor temperature, the higher the desired flow temperature.
The supply temperature (S2) is used to 1) control the S3 temperature in relation to the S2 temperature or 2) maximize the limit of the desired flow temperature.
The factory setting, where the supply temperature (S2) determines the desired flow temperature, does not change the desired flow temperature according to ‘Comfort’ or ‘Saving’ mode.
However, if the supply temperature (S2) determines a max.
limitation of the desired flow temperature, the ‘Comfort’ and
‘Saving’ mode will have two different temperature values for desired room temperature.
The motorized control valves M1 is opened gradually when the flow temperature is lower than the desired flow temperature and vice versa.
The return temperature S5 to the district heating supply should not be too high. If so, the desired flow temperature can be adjusted
(typically to a lower value), thus resulting in a gradual closing of the motorized control valve.
In boiler-based heating supply the return temperature should not be too low (same adjustment procedure as above).
Furthermore, the return temperature limitation can be dependent of the outdoor temperature. Typically, the lower the outdoor temperature, the higher the accepted return temperature.
The circulation pump in question is ON at heat demand or at frost protection.
The heating can be switched OFF when the outdoor temperature is higher than a selectable value.
The static pressure on the secondary side (consumer side) can 1) be measured as a 0 - 10 V signal (from a pressure transmitter) or 2) be a switch signal from a pressure switch. In case of a too low pressure, the refill water function will supplement with water from the supply side. The two refill water pumps are operated alternately.
When the ECL Comfort controller operates as a slave, only the refill water valve is controlled. The master controls a common refill water pump for the entire system.
Typical A331.2 application:
S 1
S 2
M1
P 3
P 5
S 10
S 5
ECL 310
R6
S 3
P 1
P 2
S 9
P S 7
S 8
V1
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:
S1 Outdoor temperature sensor
S2
S3
Supply flow temperature sensor
Flow temperature sensor
S5
S7
S8
S9
Return temperature sensor
Differential pressure switch
Pressure transmitter or pressure switch
Alarm input
S10 Pressure transmitter (for monitoring only)
P1
P2
P3
P5
M1
Circulation pump
Circulation pump
Refill water pump
Refill water pump
Motorized control valve
V1
R6
Solenoid valve, refill water valve
Relay output, alarm
10 DEN-SMT/DK VI.LG.P1.02
Danfoss District Energy
Installation Guide ECL Comfort 210 / 310, application A231 / A331
Application A331.2 in general:
The circulation pumps P1 and P2 work in shift according to a schedule. One pump is used as spare pump and the other pump is working. In case of malfunction (missing differential pressure) of one pump, the other pump will take over. An alarm will be generated and the defective pump can be inspected / repaired.
Alarm (relay 6) can be activated if:
• The actual flow temperature differs from the desired flow temperature.
• The activated circulation pump does not generate a pressure difference.
• The refill water function does not generate a pressure within a preset time.
• The universal alarm inputs S9 is activated.
Modbus communication to a SCADA system can be established.
M-bus communication enables connection to flow or energy meter.
The controller can limit the flow or energy to a set maximum but also in relation to the outdoor temperature.
Furthermore, the M-bus data can be transferred to the Modbus communication.
Typical A331.2 application:
S 1
S 2 S 10
ECL 310
R6
S 9
P S 7
S 3
P 1
P 2
M1 S 5 S 8
V1
P 3
P 5
The controller is pre-programmed with factory settings that are shown in the relevant chapters of this guide.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.2 Identifying the system type
Sketch your application
The ECL Comfort controller series is designed for a wide range of heating, domestic hot-water (DHW) and cooling systems with different configurations and capacities. If your system differs from the diagrams shown here, you may want to make a sketch of the system about to be installed. This makes it easier to use the Installation Guide, which will guide you step-by-step from installation to final adjustments before the end-user takes over.
The ECL Comfort controller is a universal controller that can be used for various systems. Based on the shown standard systems, it is possible to configure additional systems. In this chapter you find the most frequently used systems. If your system is not quite as shown below, find the diagram which has the best resemblance with your system and make your own combinations.
The circulation pump(s) in heating circuit(s) can be placed in the flow as well as the return. Place the pump according to the manufacturer’s specification.
A231.1
Indirectly connected heating system with two-pump control and refill water function:
S 1 ECL 210
R4
P S 7
S 3
P 1
P 2
M1 S 5 S 8
P 3
V1
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
A231.2
Indirectly connected heating system with two-pump control and refill water function (supply temperature measurement gives further control / limitation possibilities):
S 1 ECL 210
R4
P S 7
S 2 S 3
P 1
P 2
M1 S 5 S 8
P 3
V1
A331.1
Indirectly connected heating system with two-pump control and refill water function:
S 1
S 10
ECL 310
R6
S 9
P S 7
S 3
P 1
P 2
M1 S 5 S 8
V1
P 3
P 5
A331.2
Indirectly connected heating system with two-pump control and refill water function (supply temperature measurement gives further control / limitation possibilities):
S 1
S 2 S 10
ECL 310
R6
S 9
P S 7
S 3
P 1
P 2
M1 S 5 S 8
V1
P 3
P 5
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.3 Mounting
2.3.1 Mounting the ECL Comfort controller
For easy access, you should mount the ECL Comfort controller near the system. Select one of the following methods using the same base part (code no. 087H3220):
• Mounting on a wall
• Mounting on a DIN rail (35 mm)
The ECL Comfort 310 is to be mounted in the ECL Comfort 310 base part.
Screws, PG cable glands and rawlplugs are not supplied.
Locking the ECL Comfort controller
In order to fasten the ECL Comfort controller to its base part, secure the controller with the locking pin.
Mounting on a wall
Mount the base part on a wall with a smooth surface. Establish the electrical connections and position the controller in the base part.
Secure the controller with the locking pin.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Mounting on a DIN rail (35 mm)
Mount the base part on a DIN rail. Establish the electrical connections and position the controller in the base part. Secure the controller with the locking pin.
Dismounting the ECL Comfort controller
In order to remove the controller from the base part, pull out the locking pin by means of a screwdriver. The controller can now be removed from the base part.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.3.2 Mounting the Remote Control Units ECA 30/31
Select one of the following methods:
• Mounting on a wall, ECA 30 / 31
• Mounting in a panel, ECA 30
Screws and rawlplugs are not supplied.
Mounting on a wall
Mount the base part of the ECA 30 / 31 on a wall with a smooth surface. Establish the electrical connections. Place the ECA 30 /
31 in the base part.
Mounting in a panel
Mount the ECA 30 in a panel using the ECA 30 frame kit (order code no. 087H3236). Establish the electrical connections. Secure the frame with the clamp. Place the ECA 30 in the base part. The ECA
30 can be connected to an external room temperature sensor.
The ECA 31 must not be mounted in a panel if the humidity function is to be used.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.4 Placing the temperature sensors
2.4.1 Placing the temperature sensors
It is important that the sensors are mounted in the correct position in your system.
The temperature sensor mentioned below are sensors used for the ECL Comfort 210 and 310 series which not all will be needed for your application!
Outdoor temperature sensor (ESMT)
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.
Flow temperature sensor (ESMU, ESM-11 or ESMC)
Place the sensor max. 15 cm from the mixing point. In systems with heat exchanger, Danfoss recommends that the ESMU-type to be inserted into the exchanger flow outlet.
Make sure that the surface of the pipe is clean and even where the sensor is mounted.
Return temperature sensor (ESMU, ESM-11 or ESMC)
The return temperature sensor should always be placed so that it measures a representative return temperature.
Room temperature sensor (ESM-10, ECA 30 / 31 Remote Control
Unit)
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.
Boiler temperature sensor (ESMU, ESM-11 or ESMC)
Place the sensor according to the boiler manufacturer’s specification.
Air duct temperature sensor (ESMB-12 or ESMU types)
Place the sensor so that it measures a representative temperature.
DHW temperature sensor (ESMU or ESMB-12)
Place the DHW temperature sensor according to the manufacturer’s specification.
Slab temperature sensor (ESMB-12)
Place the sensor in a protection tube in the slab.
ESM-11: Do not move the sensor after it has been fastened in order to avoid damage to the sensor element.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Pt 1000 temperature sensor (IEC 751B, 1000 Ω / 0 °C) Relationship between temperature and ohmic value:
°C Ω
1271
1309
1347
1385
1423
1461
1498
1535
1573
803
843
882
922
961
1000
1039
1078
1117
1155
1194
1232
70
80
90
100
110
120
130
140
150
0
10
20
30
40
50
60
-50
-40
-30
-20
-10
1600
Ω
1500
1400
1300
1200
1100
1000
900
800
-50 -25 0 25 50 75 100 125 150
° C
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.5 Electrical connections
2.5.1 Electrical connections 230 V a.c. in general
The common ground terminal is used for connection of relevant components (pumps, motorized control valves).
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.5.2 Electrical connections, 230 V a.c., power supply, pumps, motorized control valves etc.
Application A231.1 / A231.2
Terminal
16
15
14
Description
Alarm
Phase for circulation pumps and refill water pump
13
12
11
10
9
8
7
6
5
4
3
P3
P2
P1
Refill water pump ON / OFF
Circulation pump ON / OFF
Circulation pump ON / OFF
Supply voltage 230 V a.c. - neutral (N)
Supply voltage 230 V a.c. - live (L)
M1 Phase for motorized control valve output
M1 Actuator - opening
M1 Actuator - closing
Do not use
V1 Solenoid valve, refill water function
Do not use
* Relay contacts: 4 A for ohmic load, 2 A for inductive load
Factory established jumpers:
5 to 8, 9 to 14, L to 5 and L to 9, N to 10
Max. load
4 (2) A / 230 V a.c.*
4 (2) A / 230 V a.c.*
4 (2) A / 230 V a.c.*
4 (2) A / 230 V a.c.*
0.2 A / 230 V a.c.
0.2 A / 230 V a.c.
0.2 A / 230 V a.c.
Wire cross section: 0.5 - 1.5 mm²
Incorrect connection can damage the electronic outputs.
Max. 2 x 1.5 mm² wires can be inserted into each screw terminal.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Application A331.1 / A331.2
Terminal
19
Description
Phase for refill water pump and alarm
18 Alarm
17
16
15
14
P5 Refill water pump ON / OFF
Do not use
Do not use
Phase for circulation pumps
13
12
11
10
P3
P2
P1
Refill water pump ON / OFF
Circulation pump ON / OFF
Circulation pump ON / OFF
Supply voltage 230 V a.c. - neutral (N)
Supply voltage 230 V a.c. - live (L) 9
8
7
6
3
2
5
4
1
M1
M1
M1
Phase for motorized control valve output
Actuator - opening
Actuator - closing
Do not use
V1 Solenoid valve, refill water function
Do not use
Do not use
Do not use
* Relay contacts: 4 A for ohmic load, 2 A for inductive load
Factory established jumpers:
5 to 8, 9 to 14, 14 to 16, 16 to 19, L to 5 and L to 9, N to 10
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Max. load
4 (2) A / 230 V a.c.*
4 (2) A / 230 V a.c.*
4 (2) A / 230 V a.c.*
4 (2) A / 230 V a.c.*
4 (2) A / 230 V a.c.*
0.2 A / 230 V a.c.
0.2 A / 230 V a.c.
0.2 A / 230 V a.c.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Wire cross section: 0.5 - 1.5 mm²
Incorrect connection can damage the electronic outputs.
Max. 2 x 1.5 mm² wires can be inserted into each screw terminal.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.5.3 Electrical connections, safety thermostats, 230 V a.c. or 24 V a.c.
With safety thermostat, ECL Comfort 210:
With safety thermostat, ECL Comfort 310:
Wire cross section: 0.5 - 1.5 mm²
Incorrect connection can damage the electronic outputs.
Max. 2 x 1.5 mm² wires can be inserted into each screw terminal.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.5.4 Electrical connections, 24 V a.c., power supply, pumps, motorized valves etc.
Application A231.1 / A231.2
Terminal
16
15
14
13 K3
Description
Alarm
Phase for circulation pumps and refill water pump
Refill water pump ON / OFF
12
11
K2
K1
Circulation pump ON / OFF
Circulation pump ON / OFF
8
7
10
9
Supply voltage 24 V a.c. - neutral (N)
Supply voltage 24 V a.c. - live (L)
M1 Phase for motorized control valve output
M1 Actuator - opening
M1 Actuator - closing 6
5
4
3
K4
Do not use
Solenoid valve, V1, refill water function
Do not use
* Relay contacts: 4 A for ohmic load, 2 A for inductive load
Factory established jumpers:
5 to 8, 9 to 14, L to 5 and L to 9, N to 10
24 DEN-SMT/DK
Max. load
4 (2) A / 24 V a.c.*
4 (2) A / 24 V a.c.*
4 (2) A / 24 V a.c.*
4 (2) A / 24 V a.c.*
1 A / 24 V a.c.
1 A / 24 V a.c.
1 A / 24 V a.c.
VI.LG.P1.02
Wire cross section: 0.5 - 1.5 mm²
Incorrect connection can damage the electronic outputs.
Max. 2 x 1.5 mm² wires can be inserted into each screw terminal.
Danfoss District Energy
Installation Guide ECL Comfort 210 / 310, application A231 / A331
Do not connect 230 V a.c. powered components to a 24 V a.c. power supplied controller directly. Use auxilliary relays (K) to seperate 230
V a.c. from 24 V a.c.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Application A331.1 / A331.2
Terminal
19
Description
Phase for refill water pump and alarm
18
17
16
15
14
13
K5
Alarm
Refill water pump ON / OFF
Do not use
Do not use
12
11
K3
K2
K1
Phase for circulation pumps
Refill water pump ON / OFF
Circulation pump ON / OFF
Circulation pump ON / OFF
9
8
10 Supply voltage 24 V a.c. - neutral (N)
Supply voltage 24 V a.c. - live (L)
M1 Phase for motorized control valve output
M1 Actuator - opening
5
4
7
6 M1 Actuator - closing
Do not use
K4 Solenoid valve, V1, refill water function
Do not use 3
2 Do not use
1 Do not use
* Relay contacts: 4 A for ohmic load, 2 A for inductive load
Factory established jumpers:
5 to 8, 9 to 14, 14 to 16, 16 to 19, L to 5 and L to 9, N to 10
26 DEN-SMT/DK VI.LG.P1.02
Max. load
4 (2) A / 24 V a.c.*
4 (2) A / 24 V a.c.*
4 (2) A / 24 V a.c.*
4 (2) A / 24 V a.c.*
4 (2) A / 24 V a.c.*
1 A / 24 V a.c.
1 A / 24 V a.c.
1 A / 24 V a.c.
Danfoss District Energy
Installation Guide ECL Comfort 210 / 310, application A231 / A331
Wire cross section: 0.5 - 1.5 mm²
Incorrect connection can damage the electronic outputs.
Max. 2 x 1.5 mm² wires can be inserted into each screw terminal.
Do not connect 230 V a.c. powered components to a 24 V a.c. power supplied controller directly. Use auxilliary relays (K) to seperate 230
V a.c. from 24 V a.c.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.5.5 Electrical connections, Pt 1000 temperature sensors and signals
A231.1 / A231.2:
Terminal Sensor / description Type
(recomm.)
ESMT 29 and 30 S1 Outdoor temperature sensor*
28 and 30 S2 Supply flow temperature sensor**
27 and 30 S3 Flow temperature sensor*** ESM-11 / ESMB /
ESMC / ESMU
25 and 30 S5 Return temperature sensor ESM-11 / ESMB /
ESMC / ESMU
23 and 30 S7 Differential pressure switch
ESM-11 / ESMB /
ESMC / ESMU
22 and 30 S8 Pressure transmitter
(0–10 V or 4–20 mA) or pressure switch
* If the outdoor temperature sensor is not connected or the cable is short-circuited, the controller assumes that the outdoor temperature is 0 (zero) °C.
** Only for application A231.2.
*** The flow temperature sensor must always be connected in order to have the desired functionality. If the sensor is not connected or the cable is short-circuited, the motorized control valve closes (safety function).
Factory established jumper:
30 to common terminal.
Connection of differential pressure switch
Connection of a pressure transmitter with 0-10 V output
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Connection of a pressure transmitter with 4-20 mA output
The 4-20 mA signal is converted to a 2-10 V signal by means of the
500 ohm resistor.
Connection of a pressure switch
P
A331.1 / A331.2:
Terminal Sensor / description Type
(recomm.)
ESMT 29 and 30 S1 Outdoor temperature sensor*
28 and 30 S2 Supply flow temperature sensor**
ESM-11 / ESMB /
ESMC / ESMU
27 and 30 S3 Flow temperature sensor*** ESM-11 / ESMB /
ESMC / ESMU
25 and 30 S5 Return temperature sensor ESM-11 / ESMB /
ESMC / ESMU
23 and 30 S7 Differential pressure switch
22 and 30 S8 Pressure transmitter
(0–10 V or 4–20 mA) or pressure switch
21 and 30 S9 Alarm switch
20 and 30 S10 Pressure transmitter
(0–10 V or 4–20 mA) or pressure switch
* If the outdoor temperature sensor is not connected or the cable is short-circuited, the controller assumes that the outdoor temperature is 0 (zero) °C.
** Only for application A331.2.
*** The flow temperature sensor must always be connected in order to have the desired functionality. If the sensor is not connected or the cable is short-circuited, the motorized control valve closes (safety function).
Factory established jumper:
30 to common terminal.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Connection of differential pressure switch
Connection of a pressure transmitter with 0-10 V output
Example of a pressure transmitter connection to S10. Pressure transmitter can be connected in the same way to S8.
Connection of a pressure transmitter with 4-20 mA output
The 4-20 mA signal is converted to a 2-10 V signal by means of the
500 ohm resistor.
Example of a pressure transmitter connection to S10. Pressure transmitter can be connected in the same way to S8.
Connection of a pressure switch
Connection of alarm switch
P
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Danfoss District Energy
Installation Guide ECL Comfort 210 / 310, application A231 / A331
Wire cross section for sensor connections: Min. 0.4 mm².
Total cable length: Max. 200 m (all sensors incl. internal ECL 485 communication bus)
Cable lengths of more than 200 m may cause noise sensibility (EMC).
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.5.6 Electrical connections, ECA 30 / 31
Terminal
ECL 310
30
31
32
33
Terminal
ECA 30 /
31
4
1
4
5
2
3
Description
Twisted pair
Twisted pair
Ext. room temperature sensor*
Type
(recomm.)
Cable 2 x twisted pair
ESM-10
* After an external room temperature sensor has been connected,
ECA 30 / 31 must be repowered.
The communication to the ECA 30 / 31 must be set up in the ECL
Comfort controller in 'ECA addr.'
The ECA 30 /31 must be set up accordingly.
After application setup the ECA 30 / 31 is ready after 2–5 min. A progress bar in the ECA 30 / 31 is displayed.
ECA information message:
‘Application req. newer ECA’:
The software of your ECA does not comply with the software of your
ECL Comfort controller. Please contact your Danfoss sales office.
Some applications do not contain functions related to actual room temperature. The connected ECA 30 / 31 will only function as remote control.
Total cable length: Max. 200 m (all sensors incl. internal ECL 485 communication bus).
Cable lengths of more than 200 m may cause noise sensibility (EMC).
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.5.7 Electrical connections, master / slave systems
The controller can be used as master or slave in master / slave systems via the internal ECL 485 communication bus (2 x twisted pair cable).
The ECL 485 communication bus is not compatible with the ECL bus in ECL Comfort 110, 200, 300 and 301!
Terminal Description Type
(recomm.)
30
31*
32
Common terminal
+12 V*, ECL 485 communication bus
33
A, ECL 485 communication bus
B, ECL 485 communication bus
Cable 2 x twisted pair
* Only for ECA 30 / 31 and master / slave communication
Total cable length: Max. 200 m (all sensors incl. internal ECL 485 communication bus).
Cable lengths of more than 200 m may cause noise sensibility (EMC).
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.6 Inserting the ECL Application Key
2.6.1 Inserting the ECL Application Key
The ECL Application Key contains
• the application and its subtypes,
• currently available languages,
• factory settings: e.g. schedules, desired temperatures, limitation values etc. It is always possible to recover the factory settings,
• memory for user settings: special user / system settings.
After having powered-up the controller, different situations might be existing:
1. The controller is new from the factory, the ECL Application Key is not inserted.
2. The controller already runs an application. The ECL Application
Key is inserted, but the application needs to be changed.
3. A copy of the controllers settings is needed for configuring another controller.
34 DEN-SMT/DK
User settings are, among others, desired room temperature, desired
DHW temperature, schedules, heat curve, limitation values etc.
System settings are, among others, communication set-up, display brightness etc.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Application Key: Situation 1
The controller is new from the factory, the ECL Application Key is not inserted.
An animation for the ECL Application Key insertion is displayed.
Insert the Application Key .
Application Key name and Version is indicated (example: A266
Ver. 1.03).
If the ECL Application Key is not suitable for the controller, a "cross" is displayed over the ECL Application Key-symbol.
Action: Purpose:
Select language
Confirm
Select application
Confirm with ‘Yes’
Set 'Time & Date'
Turn and push the dial to select and change 'Hours', 'Minutes', 'Date',
'Month' and 'Year'.
Choose ''Next'
Confirm with ‘Yes’
Go to ‘Aut. daylight’
Choose whether ‘Aut. daylight´ * should be active or not
Examples:
YES or NO
* ‘Aut. daylight’ is the automatic changeover between summer and winter time.
Depending on the contents of the ECL Application Key, procedure
A or B is taking place:
A
The ECL Application key contains factory settings:
The controller reads / transfers data from the ECL Application Key to ECL controller.
The application is installed, and the controller resets and starts up.
B
The ECL Application key contains changed system settings:
Push the dial repeatedly.
’NO’: Only factory settings from the ECL Application Key will be copied to the controller.
’YES*: Special system settings (differing from the factory settings) will be copied to the controller.
If the key contains user settings:
Push the dial repeatedly.
‘NO: Only factory settings from the ECL Application Key will be copied to the controller.
‘YES*: Special user settings (differing from the factory settings) will be copied to the controller.
* If ‘YES’ cannot be chosen, the ECL Application Key does not contain any special settings.
Choose ‘Start copying’ and confirm with 'Yes'.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Application Key: Situation 2
The controller already runs an application. The ECL Application
Key is inserted, but the application needs to be changed.
To change to another application on the ECL Application Key, the current application in the controller must be erased (deleted).
Be aware that the Application Key must be inserted.
Action: Purpose:
Choose ‘MENU’ in any circuit
Confirm
Choose the circuit selector at the top right corner in the display
Confirm
Choose ‘Common controller settings’
Confirm
Choose ‘Key functions’
Confirm
Choose ‘Erase application’
Examples:
Confirm with ‘Yes’
The controller resets and is ready to be configured.
Follow the procedure described in situation 1.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Application Key: Situation 3
A copy of the controllers settings is needed for configuring another controller.
This function is used
• for saving (backup) of special user and system settings
• when another ECL Comfort controller of the same type (210 or
310) must be configured with the same application but user / system settings differ from the factory settings.
How to copy to another ECL Comfort controller:
*
‘ECL’:
‘KEY’:
Action: Purpose:
Choose ‘MENU’
Confirm
Choose the circuit selector at the top right corner in the display
Confirm
Choose 'Common controller settings'
Confirm
Go to ‘Key functions’
Examples:
Confirm
Choose ‘Copy’
Confirm
Choose ‘To’.
‘ECL’ or ‘KEY’ will be indicated. Choose
’ECL’ or KEY’
Push the dial repeatedly to choose copy direction
Choose ‘System settings’ or ‘User settings’
Push the dial repeatedly to choose
‘Yes’ or ‘No’ in ‘Copy’. Push to confirm.
*
’ECL’ or ‘KEY’.
**
‘NO’ or ‘YES’
Choose ‘Start copying’
The Application Key or the controller is updated with special system or user settings.
Data will be copied from the Application Key to the
ECL Controller.
Data will be copied from the ECL Controller to the
Application Key.
**
‘NO’:
‘YES’:
The settings from the ECL controller will not be copied to the Application Key or to the ECL Comfort controller.
Special settings (differing from the factory settings) will be copied to the Application Key or to the ECL Comfort controller. If YES can not be chosen, there are no special settings to be copied.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.6.2 ECL Application Key, copying data
General principles
When the controller is connected and operating, you can check and adjust all or some of the basic settings. The new settings can be stored on the Key.
How to update the ECL Application Key after settings have been changed?
All new settings can be stored on the ECL Application Key.
How to store factory setting in the controller from the
Application Key?
Please read the paragraph concerning Application Key, Situation
1: The controller is new from the factory, the ECL Application Key is not inserted.
How to store personal settings from the controller to the Key?
Please read the paragraph concerning Application Key, Situation 3:
A copy of the controllers settings is needed for configuring another controller
As a main rule, the ECL Application Key should always remain in the controller. If the Key is removed, it is not possible to change settings.
Factory settings can always be restored.
Make a note of new settings in the 'Settings overview' table.
Do not remove the ECL Application Key while copying. The data on the ECL Application Key can be damaged!
It is possible to copy settings from one ECL Comfort controller to another controller provided that the two controllers are from the same series (210 or 310).
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.7 Check list
Is the ECL Comfort controller ready for use?
Make sure that the correct power supply is connected to terminals 9 (Live) and 10 (Neutral).
Check that the required controlled components (actuator, pump etc.) are connected to the correct terminals.
Check that all sensors / signals are connected to the correct terminals (see 'Electrical connections').
Mount the controller and switch on the power.
Is the ECL Application Key inserted (see 'Inserting the Application Key').
Is the correct language chosen (see 'Language' in 'Common controller settings').
Is the time & date set correctly (see 'Time & Date' in 'Common controller settings').
Is the right application chosen (see 'Identifying the system type').
Check that all settings in the controller (see 'Settings overview') are set or that the factory settings comply with your requirements.
Choose manual operation (see 'Manual control'). Check that valves open and close, and that required controlled components (pump etc.) start and stop when operated manually.
Check that the temperatures / signals shown in the display match the actual connected components.
Having completed the manual operation check, choose controller mode (scheduled, comfort, saving or frost protection).
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
2.8 Navigation, ECL Application Key A231 / A331
Navigation, application A231.1 / A331.1
Home
MENU
Schedule
Settings Flow temperature
Return limit
Flow / power limit
Optimization
Control par.
11178
11177
11031
11032
11033
11034
11035
11036
11037
11085
11011
11012
11013
11014
11026
11021
11179
11174
11119
11117
11118
11116
11112
11113
11109
11115
11184
11185
11186
11187
ID no.
Function
Heating
Selectable
Heat curve
Temp. max.
Temp. min.
High T out X1
Low limit Y1
Low T out X2
High limit Y2
Infl. - max.
Infl. - min.
Adapt. time
Priority
Actual
Limit
High T out X1
Low limit Y1
Low T out X2
High limit Y2
Adapt. time
Filter constant
Input type
Units
Auto saving
Boost
Ramp
Optimizer
Pre stop
Total stop
Cut-out
Motor pr.
Xp
Tn
M run
Nz
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Danfoss District Energy
Installation Guide ECL Comfort 210 / 310, application A231 / A331
Navigation, applications A231.1 / A331.1, continued
Home
MENU
Settings Pump control
Holiday
Alarm
Influence overview
Refill water
Application
Temp. monitor.
Clear alarm
Alarm overview
Des. flow T
11017
11023
11052
11077
11078
11093
11141
11142
11189
11327
11323
11321
11322
11320
11325
11326
11147
11148
11149
11150
11315
11324
ID no.
11314
11310
11313
11311
11312
11022
Heating
Function
Chan.-over time
Retry time
Stab. time
Change, duration
Change time
P exercise
Pressure
Input type
Time-out
Pressure, des.
Pressure, diff.
P exercise
Valve delay
No. of pumps
Demand offset
M exercise
DHW priority
P frost T
P heat T
Frost pr. T
Ext. input
Ext. mode
Min. act. time
Selectable
Upper difference
Lower difference
Delay
Lowest temp.
Circ. pumps
Refill water
Selectable
Return lim.
Flow / power lim.
Holiday
Ext. override
Boost
Ramp
Slave, demand
Heating cut-out
DHW priority
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Navigation, application A231.1 / A331.1, Common controller settings (* application A331.1 only)
Home
MENU
Time & Date
Settings*
Input overview
Log (sensors)
Output override
Key functions
Supply pressure*
Outdoor T
Heating flow & des.
Heat return T & limit
Static pressure
New application
Application
Factory setting
Copy
ID no.
Common controller settings
Function
Selectable
Pressure*
Outdoor T
Heat flow T
Heat return T
Static pressure
S7 status
S9 status*
Log today
Log yesterday
Log 2 days
Log 4 days
M1, P1, P2, P3, P5*, V1, A1
Erase application
System settings
User settings
Go to factory
To
System settings
User settings
Start copying
System
Key overview
ECL version Code no.
Hardware
Software
Build no.
Serial no.
MAC
Production week
Extension
Ethernet
M-bus config
Energy Meters
Display
Communication
Language
Selectable
Selectable
60058 Backlight
60059 Contrast
38 Modbus addr.
2048 ECL 485 addr.
2150 Service pin
2151 Ext. reset
2050 Language
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Navigation, application A231.2 / A331.2
Home
MENU
Schedule
Settings Flow temperature
Return limit
Flow / power limit
Optimization
Control par.
11033
11034
11035
11036
11037
11085
11177
11300
11301
11302
11303
11031
11032
11115
11011
11012
11013
11014
11026
11021
11119
11117
11118
11116
11112
11113
11109
11179
11174
11184
11185
11186
11187
ID no.
Function
Heating
Selectable
Heat curve
Temp. max.
Temp. min.
High supp. T X2
High T max Y2
Low supply T X1
Low T max Y1
High T out X1
Low limit Y1
Low T out X2
High limit Y2
Infl. - max.
Infl. - min.
Adapt. time
Priority
Actual
Ramp
Optimizer
Pre stop
Total stop
Cut-out
Motor pr.
Xp
Tn
M run
Nz
Limit
High T out X1
Low limit Y1
Low T out X2
High limit Y2
Adapt. time
Filter constant
Input type
Units
Auto saving
Boost
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Navigation, application A231.2 / A331.2, continued
Home
MENU
Settings Pump control
Holiday
Alarm
Influence overview
Refill water
Application
Temp. monitor.
Clear alarm
Alarm overview
Des. flow T
11017
11023
11052
11077
11078
11093
11141
11142
11189
11327
11323
11321
11322
11320
11325
11326
11147
11148
11149
11150
11315
11324
ID no.
11314
11310
11313
11311
11312
11022
Heating
Function
Chan.-over time
Retry time
Stab. time
Change, duration
Change time
P exercise
Pressure
Input type
Time-out
Pressure, des.
Pressure, diff.
P exercise
Valve delay
No. of pumps
Demand offset
M exercise
DHW priority
P frost T
P heat T
Frost pr. T
Ext. input
Ext. mode
Min. act. time
Selectable
Upper difference
Lower difference
Delay
Lowest temp.
Circ. pumps
Refill water
Selectable
Return lim.
Flow / power lim.
Holiday
Ext. override
Boost
Ramp
Slave, demand
Heating cut-out
DHW priority
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Navigation, application A231.2 / A331.2, Common controller settings (* application A331.2 only)
Home
MENU
Time & Date
Settings*
Input overview
Log (sensors)
Supply pressure*
Outdoor T
Supply T
Heating flow & des.
Heat return T & limit
Static pressure
Supply pressure*
ID no.
Common controller settings
Function
Selectable
Pressure*
Outdoor T
Heat flow T
Heat return T
Static pressure
S7 status
S9 status*
Log today
Log yesterday
Log 2 days
Log 4 days
Output override
Key functions
M1, P1, P2, P3, P5*, V1, A1
Erase application New application
Application
Factory setting
Copy
System settings
User settings
Go to factory
To
System settings
User settings
Start copying
System
Key overview
ECL version Code no.
Hardware
Software
Build no.
Serial no.
MAC
Production week
Extension
Ethernet
M-bus config
Energy Meters
Display
Communication
Language
Selectable
Selectable
60058 Backlight
60059 Contrast
38 Modbus addr.
2048 ECL 485 addr.
2150 Service pin
2151 Ext. reset
2050 Language
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
3.0 Daily use
3.1 How to navigate
You navigate in the controller by turning the dial left or right to the desired position ( ).
The dial has a built-in accellerator. The faster you turn the dial, the faster it reaches the limits of any wide setting range.
The position indicator in the display ( ) will always show you where you are.
Push the dial to confirm your choices ( ).
The display examples are from a two-circuit application: One heating circuit ( ) and one domestic hot-water (DHW) circuit ( ).
The examples might differ from your application.
Heating circuit ( ): DHW circuit ( );
Some general settings which apply to the entire controller are located in a specific part of the controller.
To enter ‘Common controller settings’:
Action: Purpose:
Choose ‘MENU’ in any circuit
Examples:
Confirm
Choose the circuit selector at the top right corner in the display
Confirm
Choose ‘Common controller settings’
Confirm
Circuit selector
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
3.2 Understanding the controller display
Choosing a favorite display
Your favorite display is the display you have chosen as the default display. The favorite display will give you a quick overview of the temperatures or units that you want to monitor in general.
If the dial has not been activated for 20 min., the controller will revert to the overview display you have chosen as favorite.
Change between displays by turning the dial until you reach the display selector ( ) at bottom right side of the display. Turn the dial and push to choose your favorite overview display.
Heating circuit
Overview display 1 informs about: actual outdoor temperature, controller mode, actual room temperature, desired room temperature.
Overview display 2 informs about: actual outdoor temperature, trend in outdoor temperature, controller mode, max. and min. outdoor temperatures since midnight as well as desired room temperature.
Overview display 1:
Overview display 3 informs about: date, actual outdoor temperature, controller mode, time, desired room temperature as well as shows the comfort schedule of the current day.
Overview display 4 informs about: state of the controlled components, actual flow temperature,
(desired flow temperature), controller mode, return temperature
(limitation value).
Dependent on the chosen display, the overview displays for the heating circuit inform you about:
• actual outdoor temperature (-0.5)
• controller mode ( )
• actual room temperature (24.5)
• desired room temperature (20.7 °C)
• trend in outdoor temperature ( )
• min. and max. outdoor temperatures since midnight ( )
• date (23.02.2010)
• time (7:43)
• comfort schedule of the current day (0 - 12 - 24)
• state of the controlled components (M2, P2)
• actual flow temperature (49 °C), (desired flow temperature (31))
• return temperature (24 °C) (limitation temperature (50))
Overview display 3:
Overview display 2:
Overview display 4:
The setting of the desired room temperature is important even if a room temperature sensor / Remote Control Unit is not connected.
Danfoss District Energy VI.LG.P1.02
If the temperature value is displayed as
"- -" the sensor in question is not connected.
"- - -" the sensor connection is short-circuited.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Setting the desired temperature
Depending on the chosen circuit and mode, it is possible to enter all daily settings directly from the overview displays (see also the next page concerning symbols).
Setting the desired room temperature
The desired room temperature can easily be adjusted in the overview displays for the heating circuit.
Action: Purpose:
Desired room temperature
Confirm
Adjust the desired room temperature
Confirm
Examples:
20.5
21.0
This overview display informs about outdoor temperature, actual room temperature as well as desired room temperature.
The display example is for comfort mode. If you want to change the desired room temperature for saving mode, choose the mode selector and select saving.
The setting of the desired room temperature is important even if a room temperature sensor / Remote Control Unit is not connected.
Setting the desired room temperature, ECA 30 / ECA 31
The room desired temperature can be set exactly as in the controller. However, other symbols can be present in the display
(please see 'What do the symbols mean?').
With the ECA 30 / ECA 31 you can override the desired room temperature set in the controller temporarily by means of the override functions:
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3.3 What do the symbols mean?
Symbol Description
Outdoor temp.
Room temp.
DHW temp.
Position indicator
Scheduled mode
Temperature
Comfort mode
Saving mode
Mode
Frost protection mode
Manual mode
Heating
DHW
Common controller settings
Circuit
Pump ON
Pump OFF
Actuator opens
Actuator closes
Alarm
Display selector
Max. and min. value
Trend in outdoor temperature
Wind speed sensor
Controlled component
Symbol
7 -23
Description
Sensor not connected or not used
Sensor connection short-circuited
Fixed comfort day (holiday)
Active influence
No influence
Additional symbols, ECA 30 / 31:
Symbol Description
ECA Remote Control Unit
Relative humidity indoor
Day off
Holiday
Relaxing (extended comfort period)
Going out (extended saving period)
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
3.4 Monitoring temperatures and system components
Heating circuit
The overview display in the heating circuit ensures a quick overview of the actual and (desired) temperatures as well as the actual state of the system components.
Display example:
49 °C Flow temperature
(31) Desired flow temperature
24 °C Return temperature
(50) Return temperature limitation
Input overview
Another option to get a quick overview of measured temperatures is the 'Input overview' which is visible in the common controller settings (how to enter the common controller settings, see
‘Introduction to common controller settings’.)
As this overview (see display example) only states the measured actual temperatures, it is read-only.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
3.5 Manual control
It is possible to manually control the installed components.
Manual control can only be selected in favorite displays in which the symbols for the controlled components (valve, pump etc.) are visible.
Action: Purpose:
Choose mode selector
Examples:
Confirm
Choose manual mode
Confirm
Choose pump
Confirm
Switch ON the pump
Switch OFF the pump.
Confirm pump mode
Choose motorized control valve
Confirm
Open the valve
Stop opening the valve
Close the valve
Stop closing the valve
Confirm valve mode
To leave manual control, use the mode selector to select the desired mode. Push the dial.
Manual control is typically used when commisioning the installation. The controlled components, valve, pump etc., can be controlled for correct function.
Controlled components Circuit selector
During manual operation, all control functions are deactivated. Frost protection is not active.
When manual control is selected for one circuit, it is automatically selected for all circuits!
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3.6 Schedule
3.6.1 Set your schedule
The schedule consists of a 7-day week:
M = Monday
T = Tuesday
W = Wednesday
T = Thursday
F = Friday
S = Saturday
S = Sunday
The schedule will day-by-day show you the start and stop times of your comfort periods (heating / DHW circuits).
Changing your schedule:
Action: Purpose:
Choose 'MENU' in any of the overview displays
Confirm
Examples:
Confirm the choice 'Schedule'
Choose the day to change
Confirm*
Go to Start1
Confirm
Adjust the time
Confirm
Go to Stop1, Start2 etc. etc.
Return to 'MENU'
Confirm
Choose 'Yes' or 'No' in 'Save'
Confirm
T
* Several days can be marked
The chosen start and stop times will be valid for all the chosen days
(in this example Thursday and Saturday).
You can set max. 3 comfort periods a day. You can delete a comfort period by setting start and stop times to the same value.
Each circuit has its own schedule. To change to another circuit, go to
'Home', turn the dial and choose the desired circuit.
The start and stop times can be set in half-hourly (30 min. ) intervals.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
4.0 Settings overview
It is recommendable to make a note of any changed settings in the empty columns.
Setting ID Page
1
Heat curve
Temp. max. (flow temp. limit, max.) — A231.1 / A331.1
11178
90 °C
Temp. min. (flow temp. limit, min.)
Heat curve
Temp. max. (flow temp. limit, max.) — A231.2 / A331.2
Temp. min. (flow temp. limit, min.)
11177
11177
10 °C
10 °C
High supp. T X2 (high value of supply temp.) — A231.2 / A331.2 11300
150 °C
High T max Y2 (high value of max limitation) — A231.2 / A331.2 11301
95 °C
Low supply T X1(low value of supply temp.) — A231.2 / A331.2
11302
70 °C
Low T max Y1 (low value of max limitation) — A231.2 / A331.2
11303
High T out X1 (return temp. limitation, high limit, X-axis) 11031
Low limit Y1 (return temp. limitation, low limit, Y-axis)
Low T out X2 (return temp. limitation, low limit, X-axis)
High limit Y2 (return temp. limitation, high limit, Y-axis)
11032
11033
-15 °C
11034
50 °C
15 °C
40 °C
60 °C
Infl. - max. (return temp. limitation - max. influence)
Infl. - min. (return temp. limitation - min. influence)
Adapt. time (adaptation time)
11035
11036
0.0
0.0
Priority (priority for return temp. limitation)
High T out X1 (flow / power limitation, high limit, X-axis)
Low limit Y1 (flow / power limitation, low limit, Y-axis)
Low T out X2 (flow / power limitation, low limit, X-axis)
High limit Y2 (flow / power limitation, high limit, Y-axis)
Adapt. time (adaptation time)
11037
11085
25 s
OFF
11119
11117
15 °C
999.9
l/h
11118
-15 °C
11116
11112
999.9
l/h
OFF
Filter constant
Input type, A231
Input type — A331
Units — A231
Units — A331
Auto saving (saving temp. dependent on outdoor temp.)
Boost
Ramp (reference ramping)
Optimizer (optimizing time constant)
Pre-stop (optimized stop time)
Total stop
Cut-out (limit for heating cut-out)
Motor pr. (motor protection)
Xp (proportional band)
Tn (integration time constant)
M run (running time of the motorized control valve)
Nz (neutral zone)
Chan.-over time (change-over time)
11113
11109
10
OFF
11109
11115
11115
OFF l/h l/h
11011
-15 °C
11012
OFF
11013
11014
11026
OFF
OFF
11021
11179
ON
OFF
20 °C
11174
11184
11185
11186
11187
11314
OFF
80 K
30 s
50 s
3 K
5 s
2
Factory settings in circuit(s)
3
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Setting
Retry time
Stab. time (stabilization time)
Change, duration
Change time (changeover time)
P exercise (pump exercise)
Pressure
Input type
Time-out
Pressure, des. (desired pressure)
Pressure, diff. (switching difference)
P exercise (pump exercise)
Valve delay
No. of pumps
Demand offset
M exercise (valve exercise)
DHW priority (closed valve / normal operation)
P frost T
P heat T (heat demand)
Frost pr. T (frost protection temperature)
Ext. input (external override) — A231
Ext. input (external override) — A331
Ext. mode (external override mode)
Min. act. time (min. activation time gear motor)
Upper difference
Lower difference
Delay
Lowest temp.
Circ. pumps
Refill water
Backlight (display brightness)
Contrast (display contrast)
Modbus addr.
ECL 485 addr. (master / slave address)
Service Pin
Ext. reset
Language
Installation Guide ECL Comfort 210 / 310, application A231 / A331
11078
11093
20 °C
10 °C
11141
11141
OFF
OFF
11142
SAVING
11189
11147
11148
10
OFF
11149
11150
11315
11324
OFF
10 m
30 °C
60058
60059
38
2048
2150
2151
2050
ID Page
11310
11313
11311
11312
11022
11327
11323
OFF
20 s
11321
3.0 bar
11322
1.5 bar
11320
11325
11326
OFF
1 s
1
OFF 11017
11023
11052
11077
OFF
OFF
2 °C
1
20 m
15 s
2
12
OFF
2
Factory settings in circuit(s)
3
5
3
1
15
0
0
English
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
5.0 Settings, circuit 1
5.1 Flow temperature
5.1.1 A231.1 / A331.1
The ECL Comfort controller determines and controls the flow temperature related to the outdoor temperature. This relationship is called the heat curve.
The heat curve is set by means of 6 coordinate points. The desired flow temperature is set at 6 pre-defined outdoor temperature values.
The shown value for the heat curve is an average value (slope), based on the actual settings.
Desired flow temperature
° C
110
100
80
60
40
20
C
B
A
-50 -40 -30 -20 -10 0 10 20
Outdoor temp.
-30 °C
-15 °C
-5 °C
0 °C
5 °C
15 °C
A
45 °C
40 °C
35 °C
32 °C
30 °C
25 °C
Desired flow temp.
B
75 °C
60 °C
50 °C
45 °C
40 °C
28 °C
C
95 °C
90 °C
80 °C
70 °C
60 °C
35 °C
Your settings
Adjust the desired flow temperature at -30, -15, -5, 0, 5, and 15 °C, if required.
A: Example for floor heating
B: Factory settings
C: Example for radiator heating (high demand)
Heat curve
Circuit
1
Setting range
Read-out only
Factory setting
Push the dial to enter / change the coordinates of the heat curve.
The heat curve represents the desired flow temperatures at different outdoor temperature and at a desired room temperature of 20 °C.
If the desired room temperature is changed, the desired flow temperature also changes:
(Desired room T - 20) × HC × 2.5
where "HC" is the Heat Curve slope and "2.5" is a constant.
The calculated flow temperature can be influenced by the ‘Boost’ and
‘Ramp’ functions etc.
Example:
Heat curve: 1.0
Desired flow temp.:
Desired room temp.:
50 °C
22 °C
Calculation (22–20) × 1.0 × 2.5 = 5
Result:
The desired flow temperature will be corrected from 50 °C to 55 °C.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Max. limitation of the desired flow temperature:
In the applications A231.1 and A331.1 the max. limitation value is selectable in ‘Temp. max.’.
Temp. max. (flow temp. limit, max.) — A231.1 / A331.1
Circuit Setting range
11178
Factory setting
1 10 ... 150 °C 90 °C
Set the max. flow temperature for the system. The desired flow temperature will not be higher than this setting. Adjust the factory setting, if required.
The setting for ‘Temp. max.’ has higher priority than ‘Temp. min.’.
Temp. min. (flow temp. limit, min.)
Circuit
1
Setting range
10 ... 150 °C
11177
Factory setting
10 °C
Set the min. flow temperature for the system. The desired flow temperature will not be lower than this setting. Adjust the factory setting, if required.
‘Temp. min.’ is overruled if 'Total stop' is active in Saving mode or
'Cut-out' is active.
‘Temp. min.’ can be overruled by the influence from the return temperature limitation (see 'Priority').
The setting for ‘Temp. max.’ has higher priority than ‘Temp. min.’.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
5.1.2 A231.2 / A331.2
The ECL Comfort controller determines and controls the flow temperature related to the supply temperature (S2). This relationship is set in the controller.
The heat curve is set in all coordinate points to the max. desired flow temperature (150 °C). The desired flow temperature will always be in relation to the supply temperature (S2).
The shown value for the heat curve is an average value (slope), based on the actual settings.
Outdoor temp.
-30 °C
-15 °C
-5 °C
0 °C
5 °C
15 °C
Factory setting
150 °C
150 °C
150 °C
150 °C
150 °C
150 °C
Your settings
Adjust the desired flow temperature at -30, -15, -5, 0, 5, and 15 °C, if required.
Heat curve
Circuit
1
Setting range
Read-out only
Factory setting
Desired flow temperature
°C
Y 2
Y1
X1
The factory setting (a general desired flow temperature of 150 °C) is limited to a max. value based on the supply temperature (S2) and the settings in parameters ‘High supp. T X2’, ‘High T max Y2’, ‘Low supply T X1’ and ‘Low T max Y1’.
X2
°C Supply temp. (S2)
Desired flow temperature
°C
9 5
50
58
70
85
150
°C Supply temp. (S2)
Danfoss District Energy VI.LG.P1.02
The above heat curve is an example of a supply temperature (S2) of
85 °C. The desired flow temperature (58 °C) is based on the set-up of the relationship between the supply temperature (S2) and the desired flow temperature.
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Max. limitation of the desired flow temperature:
In the application A231.2 / A331.2 the desired flow temperature or max. limitation value depends on the supply temperature (S2). The relationship is set in the four settings ‘High supp. T X2’, ‘High T max
Y2’, ‘Low supply T X1’ and ‘Low T max Y1’.
When setting the heat curve coordinates as described in the section 'A231.1 / A331.1’, the desired flow temperature can be limited to a maximum according to the supply temperature (S2).
Temp. max. (flow temp. limit, max.) — A231.2 / A331.2
Circuit Setting range Factory setting
1 Read-out only
The supply temperature (S2) determines the desired flow temperature. The value is calculated on basis of the settings in the following parameters: 'High supp. T X2', 'High T max Y2', 'Low supply T X1' and 'Low T max Y1'.
Temp. min. (flow temp. limit, min.)
Circuit
1
Setting range
10 ... 150 °C
11177
Factory setting
10 °C
Set the min. flow temperature for the system. The desired flow temperature will not be lower than this setting. Adjust the factory setting, if required.
‘Temp. min.’ is overruled if 'Total stop' is active in Saving mode or
'Cut-out' is active.
‘Temp. min.’ can be overruled by the influence from the return temperature limitation (see 'Priority').
The setting for ‘Temp. max.’ has higher priority than ‘Temp. min.’.
High supp. T X2 (high value of supply temp.) — A231.2
/ A331.2
Circuit
1
Setting range
10 ... 150 °C
11300
Factory setting
150 °C
Set the high value for the supply temperature in relation to the desired max. flow temperature. When the supply temperature is above the set value, the max. limitation of the flow temperature is the Y2 value. When the supply temperature is below the set value, the max. limitation of the flow temperature will be lower.
High T max Y2 (high value of max limitation) — A231.2
/ A331.2
Circuit
1
Setting range
10 ... 150 °C
11301
Factory setting
95 °C
Set the high value for the max. limitation of the desired flow temperature.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Low supply T X1(low value of supply temp.) — A231.2
/ A331.2
Circuit
1
Setting range
10 ... 150 °C
11302
Factory setting
70 °C
Set the low value for the supply temperature in relation to the desired max. flow temperature. When the supply temperature is below the set value, the max. limitation of the flow temperature is the Y1 value. When the supply temperature is above the set value, the max. limitation of the flow temperature will be higher.
Low T max Y1 (low value of max limitation) — A231.2
/ A331.2
Circuit
1
Setting range
10 ... 150 °C
11303
Factory setting
50 °C
Set the low value for the max. limitation of the desired flow temperature.
Set-up procedure when the supply temperature (S2) has to limit the desired flow temperature to a maximum:
1. Choose ‘Heat curve’.
2. Set the desired flow temperature in all 6 coordinates (-30 °C, -15
°C etc.) to the desired values.
Result:
The desired flow temperature will be in relation to the outdoor temperature but will be limited to a maximum according the settings in ‘High supp. T X2’, ‘High T max Y2’, ‘Low supply T X1’ and
‘Low T max Y1’.
The example shows the max. limitation of the desired flow temperature when the supply temperature (S2) is 105 °C.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
5.2 Return limit
The return temperature limitation is based on the outdoor temperature. Typically in district heating systems a higher return temperature is accepted at a decrease in outdoor temperature. The relationship between the return temperature limits and outdoor temperature is set in two coordinates.
The outdoor temperature coordinates are set in 'High T out X1' and 'Low T out X2'. The return temperature coordinates are set in
'High limit Y2' and 'Low limit Y1'.
The controller automatically changes the desired flow temperature to obtain an acceptable return temperature when the return temperature falls below or gets higher than the calculated limit.
This limitation is based on a PI regulation where P ('Infl.' factor) responds quickly to deviations and I ('Adapt. time') responds slower and over time removes the small offsets between the desired and actual values. This is done by changing the desired flow temperature.
Influence
Return temperature limitation
° C
High limit Y2
60
Low limit Y1
40
-15 15
Low T out X2 High T out X1
° C
Outdoor temp.
‘Infl. - min.’ > 0
‘Limit’
‘Infl. - max.’ > 0
Return temperature
‘Infl. - max.’ < 0
‘Infl. - min.’ < 0
High T out X1 (return temp. limitation, high limit, X-axis)
Circuit
1
Setting range
-60 ... 20 °C
11031
Factory setting
15 °C
Set the outdoor temperature for the low return temperature limitation.
The corresponding Y coordinate is set in 'Low limit Y1'.
Low limit Y1 (return temp. limitation, low limit, Y-axis)
Circuit Setting range
11032
Factory setting
1 10 ... 150 °C 40 °C
Set the return temperature limitation referring to the outdoor temperature set in 'High T out X1'.
The corresponding X coordinate is set in 'High T out X1'.
Low T out X2 (return temp. limitation, low limit, X-axis)
Circuit Setting range
11033
Factory setting
1 -60 ... 20 °C -15 °C
Set the outdoor temperature for the high return temperature limitation.
The corresponding Y coordinate is set in 'High limit Y2'.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
High limit Y2 (return temp. limitation, high limit, Y-axis)
Circuit
1
Setting range
10 ... 150 °C
11034
Factory setting
60 °C
Set the return temperature limitation referring to the outdoor temperature set in 'Low T out X2'.
The corresponding X coordinate is set in 'Low T out X2'.
Infl. - max. (return temp. limitation - max. influence)
Circuit
1
Setting range
-9.9 ... 9.9
11035
Factory setting
0.0
Determines how much the desired flow temperature will be influenced if the return temperature is higher than the calculated limit.
Influence higher than 0:
The desired flow temperature is increased, when the return temperature gets higher than the calculated limit.
Influence lower than 0:
The desired flow temperature is decreased, when the return temperature gets higher than the calculated limit.
Example
The return limit is active above 50 °C.
The influence is set to -2.0.
The actual return temperature is 2 degrees too high.
Result:
The desired flow temperature is changed by -2.0 x 2 = -4.0 degrees.
Normally, this setting is lower than 0 in district heating systems to avoid a too high return temperature.
Typically, this setting is 0 in boiler systems because a higher return temperature is acceptable (see also 'Infl. - min.').
Infl. - min. (return temp. limitation - min. influence)
Circuit
1
Setting range
-9.9 ... 9.9
11036
Factory setting
0.0
Determines how much the desired flow temperature will be influenced if the return temperature is lower than the calculated limit.
Influence higher than 0:
The desired flow temperature is increased, when the return temperature gets below the calculated limit.
Influence lower than 0:
The desired flow temperature is decreased, when the return temperature gets below the calculated limit.
Example
The return limit is active below 50 °C.
The influence is set to -3.0.
The actual return temperature is 2 degrees too low.
Result:
The desired flow temperature is changed by -3.0 x 2 = -6.0 degrees.
Normally, this setting is 0 in district heating systems because a lower return temperature is acceptable.
Typically, this setting is higher than 0 in boiler systems to avoid a too low return temperature (see also 'Infl. - max.').
Adapt. time (adaptation time)
Circuit Setting range
11037
Factory setting
1 OFF / 1 ... 50 s
Controls how fast the return temperature adapts to the desired return temperature limit (I control).
25 s
OFF: The control function is not influenced by the ‘Adapt.
time’.
1: The desired temperature is adapted quickly.
50: The desired temperature is adapted slowly.
The adaptation function can correct the desired flow temperature with max. 8 K.
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Priority (priority for return temp. limitation)
Circuit
1
Setting range
OFF / ON
11085
Factory setting
OFF
Choose whether the return temperature limitation should overrule the set min. flow temperature ‘Temp. min.’ .
ON: The min. flow temperature limit is overruled.
OFF: The min. flow temperature limit is not overruled.
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5.3 Flow / power limit
A flow or energy meter can be connected to the ECL controller in order to limit the flow or consumed power. The signal from the flow or energy meter is based on M-bus signal.
The flow / power limitation can be based on the outdoor temperature. Typically, in district heating systems a higher flow or power is accepted at lower outdoor temperatures.
The relationship between the flow or power limits and the outdoor temperature is set in two coordinates.
The outdoor temperature coordinates are set in 'High T out X1' and 'Low T out X2'.
The flow or power coordinates are set in 'Low limit Y1' and 'High limit Y2'. Based on these settings, the controller calculates the limitation value.
When the flow / power gets higher than the calculated limit, the controller gradually reduces the desired flow temperature to obtain an acceptable max. flow or power consumption.
High limit Y2
Low limit Y1
Flow / power limitation
Flow / power limitation
-15 15
Low T out X2 High T out X1
° C
Outdoor temp.
Limit
Desired flow temp.
° C
Time
Actual (actual flow or power)
Circuit
1
Setting range
Read-out only
11110
Factory setting
The value is the actual flow or power based on the signal from flow / energy meter, converted in the controller.
Limit (limitation value)
Circuit
1
Setting range
Read-out only
The value is the calculated limitation value.
11111
Factory setting
High T out X1 (flow / power limitation, high limit, X-axis)
Circuit Setting range
11119
Factory setting
1 -60 ... 20 °C 15 °C
Set the outdoor temperature for the low flow / power limitation.
The corresponding Y coordinate is set in 'Low limit Y1'.
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Installation Guide ECL Comfort 210 / 310, application A231 / A331
Low limit Y1 (flow / power limitation, low limit, Y-axis)
Circuit
1
Setting range
0.0 ... 999.9 l/h
11117
Factory setting
999.9 l/h
Set the flow / power limitation referring to the outdoor temperature set in
'High T out X1'.
The corresponding X coordinate is set in 'High T out X1'.
The limitation function can overrule the set 'Temp. min' of the desired flow temperature.
Low T out X2 (flow / power limitation, low limit, X-axis)
Circuit Setting range
11118
Factory setting
1 -60 ... 20 °C -15 °C
Set the outdoor temperature for the high flow / power limitation.
The corresponding Y coordinate is set in 'High limit Y2'.
High limit Y2 (flow / power limitation, high limit, Y-axis)
Circuit Setting range
11116
Factory setting
1 0.0 ... 999.9 l/h 999.9 l/h
Set the flow / power limitation referring to the outdoor temperature set in 'Low T out X2'.
The corresponding X coordinate is set in 'Low T out X2'.
Adapt. time (adaptation time)
Circuit
1
Setting range
OFF / 1 ... 50 s
11112
Factory setting
Controls how fast the flow / power limitation adapts to the desired limitation.
OFF
OFF: The control function is not influenced by the ‘Adapt.
time’.
1: The desired temperature is adapted slowly.
50: The desired temperature is adapted quickly.
1:
2:
50:
Filter constant
Circuit
1
Setting range
1 ... 50
11113
Factory setting
The actual filter dampens the flow / power input data by the set factor.
10
No filtering.
Fast (low filter constant)
Slow (high filter constant)
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Input type, A231
Circuit
1
Possible in ECL Comfort 310 only.
Setting range
OFF / EM1 ... EM5
OFF: No input.
EM1: Pulse.
11109
Factory setting
OFF
Flow or power limitation is possible in ECL Comfort 310 only.
Input type — A331
Circuit
1
Setting range
OFF / EM1 ... EM5
Choice of M-bus signal from energy meter number 1 ... 5.
11109
Factory setting
OFF
OFF: No M-bus signal acquired.
EM1 ... EM5: Energy meter number.
Flow or power limitation is possible in ECL Comfort 310 only.
Units — A231
Circuit
1
Setting range
See the list
11115
Factory setting
Choice of units for measured values. Possible in ECL Comfort 310 only.
l/h
Flow values are expressed as l/h or m³/h
Power values are expressed as kW, MW or GW.
List for setting range of 'Units': l/h m³/h kW
MW
GW
Flow or power limitation is possible in ECL Comfort 310 only.
Units — A331
Circuit
1
Choice of units for measured values.
Setting range
See the list
Flow values are expressed as l/h or m³/h
Power values are expressed as kW, MW or GW.
11115
Factory setting l/h
List for setting range of 'Units': l/h m³/h kW
MW
GW
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5.4 Optimization
Auto saving (saving temp. dependent on outdoor temp.)
Circuit
1
Setting range
OFF / -29 ... 10 °C
11011
Factory setting
-15 °C
Below the set value for the outdoor temperature, the saving temperature setting has no influence. Above the set value for the outdoor temperature, the saving temperature relates to the actual outdoor temperature. The function is relevant in district heating installations in order to avoid a big change in the desired flow temperature after a saving period.
OFF: The saving temperature does not depend on the outdoor temperature.
-29 ... 10: The saving temperature depends on the outdoor temperature. When the outdoor temperature is above
10 °C, the reduction is 100%. The lower the outdoor temperature, the less the temperature reduction. When the outdoor temperature is below the set limit, there is no temperature reduction.
The comfort and the saving temperatures are set in the display overviews. The difference between the comfort and the saving temperature is considered to be 100%. Depending on the outdoor temperature, the percentage value can be lower according to the set value in ‘Auto saving’.
Reduction
100%
0%
-29 -20 -10 0 10 20
Auto saving
Outdoor temp. °C
Example:
Outdoor temp.: –5 °C
Desired room temp. in Comfort mode: 22 °C
Desired room temp. in Saving mode: 16 °C
Setting in ‘Auto saving’: –15 °C
The drawing above illustrates that the reduction percentage at an outdoor temperature of –5 °C is 40%.
The difference between Comfort and Saving temperature is (22–16)
= 6 degrees.
40% of 6 degrees = 2.4 degrees
The ‘Auto saving’ temperature is corrected to (22–2.4) = 19.6 °C.
Boost
Circuit
1
Setting range
OFF / 1 ... 99%
11012
Factory setting
OFF
Shortens the heating-up period by increasing the desired flow temperature by the percentage you set.
OFF: The boost function is not active.
1-99%: The desired flow temperature is increased temporarily with the set percentage.
In order to shorten the heating-up period after a saving temperature period, the desired flow temperature can be increased temporarily (max. 1 hour). At optimizing the boost is active in the optimization period ('Optimizer').
If a room temperature sensor or an ECA 30 / 31 is connected, the boost stops when the room temperature is reached.
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Temp. °C
Ramp (reference ramping)
Circuit
1
Setting range
OFF / 1 ... 99 m
11013
Factory setting
The time (minutes) in which the desired flow temperature increases gradually to avoid load peaks in the heat supply.
OFF
OFF: The ramping function is not active.
1-99 m: The desired flow temperature is increased gradually with the set minutes.
In order to avoid load peaks in the supply network, the flow temperature can be set to increase gradually after a period with saving temperature. This causes the valve to open gradually.
Ramping time
Time (min.)
Optimizer (optimizing time constant)
Circuit
1
Setting range
OFF / 10 ... 59
11014
Factory setting
OFF
Optimizes the start and stop times for the comfort temperature period to obtain the best comfort at the lowest energy consumption.
The lower the outdoor temperature, the earlier the heating cut-in. The lower the outdoor temperature, the later the heating cut-out.
The optimized heating cut-out time can be automatic or disabled. The calculated start and stop times are based on the setting of the optimizing time constant.
Adjust the optimizing time constant.
The value consists of a two digit number. The two digits have the following meaning (digit 1 = Table I, digit 2 = Table II).
OFF: No optimization. The heating starts and stops at the times set in the schedule.
10 ... 59: See tables I and II.
Table I:
Left digit
1-
2-
3-
4-
5-
Table II:
Right digit
-0
-1
·
-5
·
-9
Heat accumulation of the building light medium heavy medium heavy
System type
Radiator systems
Floor heating systems
Dimensioning temperature
-50 °C
-45 °C
·
-25 °C
·
-5 °C
Capacity large
·
· normal
· small
Dimensioning temperature:
The lowest outdoor temperature (usually determined by your system designer in connection with the design of the heating system) at which the heating system can maintain the designed room temperature.
Example
The system type is radiator, and the heat accumulation of the building is medium.
The left digit is 2.
The dimensioning temperature is -25 °C, and the capacity is normal.
The right digit is 5.
Result:
The setting is to be changed to 25.
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Pre-stop (optimized stop time)
Circuit
1
Disable the optimized stop time.
OFF:
ON:
Setting range
OFF / ON
The optimized stop time is disabled.
The optimized stop time is enabled.
11026
Factory setting
ON
Example: Optimization of Comfort from 07:00 - 22:00
07:00 22:00
Schedule
Pre-stop OFF
Pre-stop ON
Optimization stop Optimization start
Total stop
Circuit
1
Setting range
OFF / ON
11021
Factory setting
OFF
Decide whether you want a total stop during the saving temperature period.
OFF: No total stop. The desired flow temperature is reduced according to:
• desired room temperature in saving mode
• auto saving
ON: The desired flow temperature is lowered to the set value in ‘Frost pr.’ The circulation pump is stopped but frost protection is still active, see 'P frost T'.
Desired flow temp. °C
Desired flow temp. °C
Total stop = ON
‘Frost pr.’
Time
Total stop = OFF
‘Frost pr.’
Time
The min. flow temperature limitation ('Temp. min.') is overruled when
'Total stop' is ON.
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Cut-out (limit for heating cut-out)
Circuit
1
Setting range
OFF / 1 ... 50 °C
11179
Factory setting
20 °C
The heating can be switched OFF when the outdoor temperature is higher than the set value. The valve closes and after the post-run time, the heating circulation pump stops. ‘Temp. min.’ will be overruled.
The heating system switches ON again when the outdoor temperature and the accumulated (filtered) outdoor temperature become lower than the set limit.
This function can save energy.
Set the value for outdoor temperature at which you want the heating system to switch OFF.
Temp.
1 8 °C
Actual outdoor temp.
Accumulated outdoor temp.
Heating ON Heating OFF Heating ON
Time
The heating cut-out is only active when the controller mode is in scheduled operation. When the cut-out value is set to OFF, there is no heating cut-out.
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5.5 Control parameters
Motor pr. (motor protection)
Circuit Setting range
11174
Factory setting
1 OFF / 10 ... 59 m OFF
Prevents the controller from unstable temperature control (and resulting actuator oscillations). This can occur at very low load. The motor protection increases the lifetime of all involved components.
OFF: Motor protection is not activated.
10 ... 59: Motor protection is activated after the set activation delay in minutes.
Recommended for heating systems with variable load.
Xp (proportional band)
Circuit
1
Setting range
5 ... 250 K
11184
Factory setting
80 K
Set the proportional band. A higher value will result in a stable but slow control of the flow temperature.
Tn (integration time constant)
Circuit
1
Setting range
1 ... 999 s
11185
Factory setting
30 s
Set a high integration time constant (in seconds) to obtain a slow but stable reaction to deviations.
A low integration time constant will make the controller react fast but with less stability.
M run (running time of the motorized control valve)
Circuit
1
Setting range
5 ... 250 s
11186
Factory setting
50 s
‘M run’ is the time in seconds it takes the controlled component to move from fully closed to fully open position. Set the ‘M run’ according to the examples or measure the running time by means of a stop watch.
How to calculate the running time of a motorized control valve
The running time of the motorized control valve is calculated using the following methods:
Seated valves
Running time = Valve stroke (mm) x actuator speed (sec. / mm)
Example: 5.0 mm x 15 sec. / mm = 75 sec.
Rotating valves
Running time = Turning degrees x actuator speed (sec. / degr.)
Example: 90 degr. x 2 sec. / degr. = 180 sec.
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Nz (neutral zone)
Circuit
1
Setting range
1 ... 9 K
11187
Factory setting
3 K
Set the acceptable flow temperature deviation.
Set the neutral zone to a high value if you can accept a high variation in flow temperature. When the actual flow temperature is within the neutral zone, the controller does not activate the motorized control valve.
The neutral zone is symmetrical around the desired flow temperature value, i.e. half the value is above and half the value is below this temperature.
If you want to tune the PI regulation precisely, you can use the following method:
• Set the ‘Tn’ (integration time constant) to its max. value (999 sec.).
• Decrease the value for the ‘Xp’ (proportional band) until the system starts hunting (i.e. gets unstable) with a constant amplitude (it might be necessary to force the system by setting an extreme low value).
• Find the critical time period on the temperature recorder or use a stop watch.
Temp.
Critical time period
Time
This critical time period will be characteristic for the system, and you can evaluate the settings from this critical period.
‘Tn’ = 0.85 x critical time period
‘Xp’ = 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%. Make sure there is a consumption when you set the parameters.
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5.6 Pump control
This application can operate with one or two circulation pumps.
When operating with two circulation pumps, the pumps are controlled alternately, according to a time set-up. When a pump is switched ON the controller is waiting for differential pressure
(S7) to build up. If differential pressure is not achieved, an alarm is generated and the ECL Comfort controller switches ON the other pump.
If none of the pumps can come into operation (detected by means of the differential pressure switch), the alarm is activated and the motorized control valve closes (a safety function).
Chan.-over time (change-over time)
Circuit Setting range
1 OFF / 1 ... 99 s
11314
Factory setting
5 s
Setting of time to elapse between the pump stop command for one pump and the start command for the other pump.
The change-over time can ensure that a pump is stopped efficiently before the other pump starts.
OFF: One circulation pump in the application.
1 ... 99: Time for change-over.
ON
OFF
P
P
3
5
‘Chan.-over time’
P5
P3
Seconds (s)
‘Chan.-over time’ has to be chosen in systems with two pumps.
Retry time
Circuit
1
Setting range
OFF / 1... 99 m
11310
Factory setting
20 m
If an alarm has been generated for the pump or alarms have been generated for both pumps, this setting will determine the time between the time of the alarm and the retry time for repeated pump start.
OFF: No retry time required after an alarm. The pump or pumps in question will not be restarted.
1 ... 99: After an alarm, the pump or pumps will be restarted after the set time.
Stab. time (stabilization time)
Circuit Setting range
11313
Factory setting
1 1... 99 s 15 s
Setting of max. time to elapse between pump start command and feedback from differential pressure switch.
If the differential pressure switch does not give feedback within the set time, the alarm will be activated and the other pump will get a start command.
If the chosen stabilization time (‘Stab. time’) is too short, the active pump will stop immediately after the stabilization time has elapsed.
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Change, duration
Circuit Setting range
11311
Factory setting
1 1 ... 10 2
The number of days between shift of circulation pumps. The shift takes place at the time set in 'Change time'.
ON
OFF
ON
OFF
P 3
P 5
P3
P5
P3
P 3
P5
P5
Days
Change time (changeover time)
Circuit Setting range
11312
Factory setting
1 0 ... 23 12
The exact time of the day, where the shift must take place. The day is divided into 24 hours. The factory setting here is 12 which means 12:00 (noon).
ON
OFF
ON
OFF
P 3
P 5
P 3
P5
Time
1 day
P exercise (pump exercise)
Circuit
1
Setting range
OFF / 1 ... 200 s
11022
Factory setting
OFF
The time the pump is activated during exercise. Exercise takes place every day (at 12:20) when no heat demand has been present.
OFF: No pump exercise.
1 ... 200: Activation time during exercise.
The feedback from the differential pressure switch is active and will activate the alarm in case that the pump does not start.
The status of the differential pressure switch is shown in 'Input overview'.
Example:
S7 status . . . OFF / ON
OFF: The differential pressure switch is closed (differential pressure is OK)
ON: The differential pressure switch is open (differential pressure is not OK)
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5.7 Refill water
Leaks on the consumers side will result in falling static pressure and thereby a poor supply of heating. A refill water function can inject water to increase the static pressure.
This application can monitor the static pressure and enable the refill water function when the pressure is too low.
The pressure is measured by means of a pressure transmitter
(giving a 0 - 10 volt signal in relation to the measured pressure) or a pressure switch.
When a pressure transmitter signal is used, two settings in the controller represent pressure setpoint and difference.
When a pressure switch signal is used, the setpoint and (maybe) the switching difference is set on the pressure switch.
When a too low pressure is detected the refill water pump is switched ON and, after a set time, the ON-OFF valve is activated.
If the pressure is not achieved within a set time, an alarm is generated. The ECL Comfort controller switches OFF the circulation pumps after 60 seconds and the control valve closes (a safety function).
Pressure
Circuit
1
Example: Relationship between input voltage and displayed pressure (in bar)
Bar
Setting range
Read-out only
Factory setting
30.0
The read-out can be a value (in bar):
• The pressure is measured by means of a pressure transmitter.
The transmitter sends the measured pressure as a 0-10 V or a
4-20 mA signal. The voltage signal can be applied directly to input S10. A current signal is converted by means of a resistor to a voltage and then applied to input S10. The measured voltage on input S10 must be converted to a pressure value by the controller. This procedure sets up the scaling.
Push the dial to see the graph and enter the value sets for the input voltage (1 and 10 volt) and displayed pressure (in bar).
Pressure: 0.0 ... 30.0 bar
Fixed voltage settings: 1 V and 10 V
Factory settings: (1.0,0) and (10,20.0)
This means that the ‘Pressure' is 0.0 bar at 1 V and 20.0 bar at
10 V.
Typically, the higher the voltage, the higher the displayed pressure.
Or the read-out can be OFF or ON:
• The pressure is measured by means of a pressure switch. The pressure switch has an open contact when measuring a too low pressure (shown as OFF). When measured pressure is OK, the contact is closed (shown as ON).
The pressure switch contact (potential free) is connected directly to input S10.
0.0
Volt
1 1 0
This example shows that 1 volt correspond to 0.0 bar and 10 volt correspond to 20.0 bar
This scaling menu is always shown, regardless whether a pressure transmitter or a pressure switch is used.
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Input type
Circuit
1
Choice of pressure input signal.
Setting range
OFF / AI / DI
11327
Factory setting
OFF
OFF: Pressure signal is not required. The refill water function is disabled.
AI: The input signal is an analog signal (0 - 10 V).
DI: The input signal is a digital signal (switch OFF or ON).
When selecting ‘OFF’, the refill water system could be self-acting.
Time-out
Circuit
1
Setting range
0 ... 1000 s
11323
Factory setting
20 s
Setting of the max. time for refill. The pressure, measured by S10, must be
OK within the set time. If not, the refill water function stops and an alarm is activated.
Pressure
Refill
OK
Not OK
ON
OFF
Seconds
(s)
Time-out
Pressure
Refill
OK
Not OK
ON
OFF
Alarm ON
OFF Seconds
(s)
Time-out
Pressure, des. (desired pressure)
Circuit
1
Setting range
0.0 ... 25.0 bar
11321
Factory setting
3.0 bar
Setting of the desired static pressure on the radiator (consumer) side. See also 'Pressure diff.'
Desired pressure
Pressure (bar)
Pressure difference
Pressure
Refill ON
OFF
Time
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Pressure, diff. (switching difference)
Circuit
1
Setting range
0.1 ... 5.0 bar
11322
Factory setting
1.5 bar
Setting of the switching difference for measured static pressure (pressure transmitter). The difference is symmetrical around the 'Pressure des.' See also 'Pressure des.'
The settings in 'Pressure, des.' and 'Pressure, diff.' have no influence when a pressure switch is used.
P exercise (pump exercise)
Circuit
1
Setting range
OFF / 1 ... 200 s
11320
Factory setting
OFF
The time the pump is activated during exercise. Exercise takes place every day (at 12:00).
OFF: No pump exercise.
1 ... 200: Activation time during exercise.
Valve delay
Circuit
1
Setting range
0 ... 30 s
11325
Factory setting
1 s
Setting of the time for activation of the ON/OFF valve after start of the refill water pump.
Refill pump ON
OFF
Refill valve ON
OFF
Time
‘Valve delay’
No. of pumps
Circuit
1
Setting range
OFF / 1 ... 2
Setting of the number of pumps in the refill water circuit.
11326
Factory setting
1
OFF: The refill water pump function is controlled by the master controller.
1 ... 2: The refill water function has one or two pumps.
Refill water pump
Refill water valve
ECL 485 communication bus
When selecting OFF and a demand for refill occurs, the controller for the actual circuit sends the requirement via the ECL 485 communication bus to the master controller.
The master must be running an application with refill water function.
The master starts the refill water pump and sends, via the ECL 485 communication bus, a message that the refill water pump is started.
The refill water valve then opens.
The slave must have an address 1 ... 9.
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The static pressure is shown in 'Input overview' as a value in bar or
OFF / ON.
Example:
OFF: The pressure switch is open (pressure is not OK)
ON: The pressure switch is closed (pressure is OK)
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5.8 Application
Demand offset
Circuit
1
Setting range
OFF / 1 ... 20 K
11017
Factory setting
OFF
The desired flow temperature in heating circuit 1 can be influenced by the demand for a desired flow temperature from another controller (slave) or another circuit.
OFF: The desired flow temperature in circuit 1 is not influenced by the demand of any other controller (slave or circuit 2).
1 ... 20: The desired flow temperature is increased by the set value in ‘Demand offset’, if the demand of the slave / circuit 2 is higher.
Temp.
Setting in
‘Demand offset’
Des. flow temp., circuit 1
Des. flow temp., circuit 2
Time
The function of ‘Demand offset’ can compensate for heat losses between master and slave controlled systems.
M exercise (valve exercise)
Circuit
1
Setting range
OFF / ON
Exercises the valve to avoid blocking in periods without heat demand.
11023
Factory setting
OFF
OFF: The valve exercise is not active.
ON: The valve opens for 7 minutes and closes for 7 minutes every third day at noon (12:00 hours).
DHW priority (closed valve / normal operation)
Circuit
1
Setting range
OFF / ON
11052
Factory setting
OFF
The heating circuit can be closed when the controller acts as slave and when
DHW charging is active in the master.
OFF: The flow temperature control remains unchanged during active DHW charging in the master controller.
ON: The valve in the heating circuit is closed* during active
DHW charging in the master controller.
* The desired flow temperature is set to the value set in
‘Frost pr. T’
This setting must be considered if this controller is a slave.
P frost T
Circuit
1
Setting range
OFF / -10 ... 20 °C
11077
Factory setting
2 °C
When the outdoor temperature is below the set temperature in ‘P frost T’, the controller automatically switches ON the circulation pump to protect the system.
OFF: No frost protection.
-10 ... 20: The circulation pump is ON when the outdoor temperature is below the set value.
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Under normal conditions, your system is not frost protected if your setting is below 0 °C or OFF.
For water-based systems, a setting of 2 °C is recommended.
Danfoss District Energy
Installation Guide ECL Comfort 210 / 310, application A231 / A331
P heat T (heat demand)
Circuit
1
Setting range
5 ... 40 °C
11078
Factory setting
20 °C
When the desired flow temperature is above the set temperature in ‘P heat T’, the controller automatically switches ON the circulation pump.
5 ... 40: The circulation pump is switched ON when the desired flow temperature is above the set value.
The valve is fully closed as long as the pump is not switched on.
Frost pr. T (frost protection temperature)
Circuit Setting range
11093
Factory setting
1 5 ... 40 °C 10 °C
Set the desired flow temperature for example at heating cut-out, total stop etc. to protect the system against frost.
5 ... 40: Desired frost protection temperature.
Ext. input (external override) — A231
Circuit
1
Setting range
OFF / S1 ... S8
11141
Factory setting
OFF
Choose the input for 'Ext. input' (external override). By means of a switch the controller can be overridden to Comfort or Saving mode.
OFF: No inputs have been selected for external override.
S1 ... S8: Input selected for external override.
If S1...S6 is chosen as override input, the override switch must have gold-plated contacts.
If S7 or S8 is chosen as override input, the override switch can be a standard contact.
See the drawing for a connection example of an override switch to input S7.
Choose only an unused input for override. If an already used input is applied for override, the functionality of this input is also neglected.
See also ‘Ext. mode’.
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Ext. input (external override) — A331
Circuit
1
Setting range
OFF / S1 ... S10
11141
Factory setting
OFF
Choose the input for 'Ext. input' (external override). By means of a switch the controller can be overridden to ‘Comfort’ or ‘Saving’ mode.
OFF: No inputs have been selected for external override.
S1 ... S10: Input selected for external override.
If S1... S6 is chosen as override input, the override switch must have gold-plated contacts.
If S7 ... S10 is chosen as override input, the override switch can be a standard contact.
See the drawing for a connection example of an override switch to input S9.
Choose only an unused input for override. If an already used input is applied for override, the functionality of this input is also neglected.
The two drawings (override to comfort mode and override to saving mode) show the functionality.
See also ‘Ext. mode’.
Override to ‘Comfort’ mode
Time
Override to ‘Saving’ mode
Time
The result of override to 'Saving' mode depends on the setting in
'Total stop'.
Total stop = OFF: Heating reduced
Total stop = ON: Heating stopped
Ext. mode (external override mode)
Circuit Setting range
1 COMFORT / SAVING
Choose external override mode.
11142
Factory setting
SAVING
The mode override can be activated for saving or comfort mode.
For override, the controller mode must be scheduled mode.
SAVING: The controller is in saving mode when the override switch is closed.
COMFORT: The controller is in comfort mode when the override switch is closed.
See also ‘Ext. input’.
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Min. act. time (min. activation time gear motor)
Circuit Setting range
1 2 ... 50
11189
Factory setting
The min. pulse period of 20 ms (milliseconds ) for activation of the gear motor.
10
Setting example
2
10
50
Value x 20 ms
40 ms
200 ms
1000 ms
The setting should be kept as high as acceptable to increase the lifetime of the actuator (gear motor).
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5.9 Alarm
Many applications in the ECL Comfort 210 and 310 series have an alarm function. The alarm function typically activates relay 4 (ECL
Comfort 210) or relay 6 (ECL Comfort 310).
The alarm relay can activate a lamp, a horn, an input to an alarm transmitting device etc. etc.
The relay in question is activated as long as the alarm condition is present.
Typical alarms:
• Actual flow temperature differs from the desired flow temperature.
• An activated circulation pump does not generate a pressure difference.
• The refill water function does not generate a pressure within a preset time.
• A universal alarm input (application dependent) is activated.
5.9.1 Temp. monitor.
Upper difference
Circuit
1
Setting range
OFF / 1 ... 30 K
11147
Factory setting
OFF
The alarm is activated if the actual flow temperature increases more than the set difference (acceptable temperature difference above the desired flow temperature). See also 'Delay'.
OFF: The alarm function is not active.
1 ... 30 K: The alarm function is active if the actual temperature gets above the acceptable difference.
Flow temp. °C
Upper difference (set value)
Desired flow temp.
° C Outdoor temp.
Lower difference
Circuit
1
Setting range
OFF / 1 ... 30 K
11148
Factory setting
OFF
The alarm is activated if the actual flow temperature decreases more than the set difference (acceptable temperature difference below the desired flow temperature). See also 'Delay'.
OFF: The alarm function is not active.
1 ... 30 K: The alarm function is active if the actual temperature gets below the acceptable difference.
Flow temp. °C
Lower difference (set value)
Desired flow temp.
° C
Outdoor temp.
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Delay
Circuit
1
Setting range
1 ... 99 m
11149
Factory setting
10 m
If an alarm condition from either 'Upper difference' or 'Lower difference' is present for a longer time than the set delay (in min.), the alarm function is activated.
1 ... 99 m: The alarm function will be activated if the alarm condition remains after the set delay.
Temp.
Flow temp.
Alarm limit
Time
Delay
Lowest temp.
Circuit
1
Setting range
10 ... 50 °C
11150
Factory setting
30 °C
The alarm function will not be activated if the desired flow temperature is lower than the set value.
If the cause of the alarm disappears, the alarm indication and output also disappear.
5.9.2 Clear alarm
If an alarm has been generated, a bell is shown in one of the favorite display (see ‘Monitoring temperatures and system components’) or in an overview display (see ‘Understanding the controller display’). The following menus are used to locate the alarm cause and reset (clear) the alarm signal. Even when the cause of the alarm has disappeared, the indication will still be active until the clear alarm procedure has been carried out.
Circ. pumps
Circuit
1
Setting range
OFF / ON
Choose whether the alarm should be cleared or not.
11315
Factory setting
OFF:
ON:
The alarm has not been activated.
The alarm has been activated.
Clear alarm procedure:
If the status is ‘ON’: Change ‘ON’ to ‘OFF’.
If the status is ‘OFF’: It is not possible to change it to ‘ON’.
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Refill water
Circuit
1
Setting range
OFF / ON
Choose whether the alarm should be cleared or not.
11324
Factory setting
OFF:
ON:
The alarm has not been activated.
The alarm has been activated.
Clear alarm procedure:
If the status is ‘ON’: Change ‘ON’ to ‘OFF’.
If the status is ‘OFF’: It is not possible to change it to ‘ON’.
5.9.3 Alarm overview
The alarm overview lists the components or functions that could cause an alarm.
The number to the left (i.e. 1, 5, 6, 7) relates to the alarm number which is sent by Modbus communication to a SCADA system.
Two alarm types can be present, ie. the alarms that are logged and the alarms that are not logged.
Example:
The alarm type for ‘Refill water’, ‘Pump 3’ and ‘Pump 5’ are logged alarms. This means that the alarm symbol will remain until the alarm has been cleared even if the cause of the alarm has disappeared.
The alarm type for ‘Temp. monitor’ e.g. is not a logged alarm which means that the alarm symbol will only be present as long as the alarm cause exists.
Example:
’Pump P5’ has caused an alarm.
The alarm overview will only list components or functions that could cause an alarm.
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6.0 Common controller settings
6.1 Introduction to ‘Common controller settings’
Some general settings which apply to the entire controller are located in a specific part of the controller.
To enter ‘Common controller settings’:
Action: Purpose:
Choose ‘MENU’ in any circuit
Confirm
Choose the circuit selector at the top right corner in the display
Confirm
Choose ‘Common controller settings’
Confirm
Examples:
Circuit selector
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6.2 Time & Date
It is only necessary to set the correct date and time in connection with the first use of the ECL Comfort controller or after a power break of more than 72 hours.
The controller has a 24 hour clock.
Aut. daylight (Daylight saving time changeover)
YES: The controller’s built-in clock automatically changes + /
- one hour on the standardized days for daylight saving time changeover for Central Europe.
NO: You change manually between summer and winter time by setting the clock backward or forward.
When controllers are connected as slaves in a master / slave system
(via ECL 485 communication bus), they will receive ‘Time & Date’ from the master.
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6.3 Holiday
There is a holiday program for each circuit and a holiday program for the common controller.
Each holiday program contains one or more schedules. Each schedule can be set to a start date and an end date. The set period starts on the start date at 00.00 and stops on end date at 24.00.
Selectable modes are Comfort, Saving, Frost protection or Comfort
7-23 (before 7 and after 23, the mode is scheduled).
How to set your holiday schedule:
Examples: Action: Purpose:
Choose ‘MENU’
Confirm
Choose the circuit selector at the top right corner in the display
Confirm
Choose a circuit or 'Common controller settings'
Heating
DHW
Common controller settings
Confirm
Go to ‘Holiday’
Confirm
Choose a schedule
Confirm
Confirm choice of mode selector
Choose mode
. Comfort
· Comfort 7–23
. Saving
· Frost protection
Confirm
Enter the start time first and then the end time
Confirm
Go to ‘Menu’
Confirm
Choose ‘Yes’ or ‘No’ in ‘Save’. Choose the next schedule, if required
7 -23
The holiday program in the ‘Common controller settings’ is valid for all circuits. The holiday program can also be set individually in the heating or DHW circuits.
The end date must be at least be one day later than the start date.
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The ECA 30 / 31 cannot override the holiday schedule of the controller temporarily.
However, it is possible to make use of the following options from the ECA 30 / 31 when the controller is in scheduled mode:
Day off
Holiday
Relaxing (extended comfort period)
Going out (extended saving period)
Energy-saving trick:
Use 'Going out' (the extended saving period) for airing purposes (e.g.
for ventilating the rooms by means of fresh air from open windows).
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6.4 Input overview
The input overview is located in the common controller settings.
This overview will always show you the actual temperatures in the system (read-only).
In addition to the measured temperatures, pressures, pressure switches and alarm switches are indicated as follows:
Input:
Static pressure:
Status:
1.9 bar
(example)
The input is set to OFF or a 0–10 V input (analog input = ‘AI’).
OFF:
Pressure not OK
ON:
Pressure OK
The input is set as a switch input (digital input = ‘DI’).
S7 (S8, S9) status: OFF
ON
The input is activated by means of a differential pressure switch or an alarm contact, i.e. connected to terminal 30.
The input is not activated.
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6.5 Log
The log function (temperature history) allows you to monitor the logs of today, yesterday, the past 2 days as well as the past 4 days for the connected sensors.
There is a log display for the relevant sensor, showing the measured temperature.
The log function is only available in the 'Common controller settings'.
Example 1:
1 day log for yesterday showing the development in outdoor temperature during the past 24 hours.
Example 2:
Today’s log for the actual heating flow temperature as well as the desired temperature.
Example 3:
Yesterday’s log for the DHW flow temperature as well as the desired temperature.
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6.6 Output override
The output override is used to disable one or more of the controlled components. This could among others be useful in a service situation.
Action: Purpose:
Choose 'MENU' in any of the overview displays
Confirm
Choose the circuit selector at the top right corner in the display
Confirm
Examples:
Choose common controller settings
Confirm
Choose 'Output override'
Confirm
Choose a controlled component
Confirm
Adjust the status of the controlled component:
Motorized control valve: AUTO, STOP,
CLOSE, OPEN
Pump: AUTO, OFF, ON
Confirm status change
M1, P1 etc.
Remember to change the status back again as soon as an override is not required any longer.
Controlled components Circuit selector
When the selected controlled component (output) is not ‘AUTO’, the
ECL Comfort controller does not control the component in question
(pump or motorized control valve e.g.). Frost protection is not active.
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6.7 Key functions
New application
Application
Factory setting
Copy
Erase application:
Removes the existing application. As soon as the ECL key is inserted, another application can be chosen.
Gives an overview over the application and its subtypes of the ECL key in question.
System settings:
System settings are, among others, communication set-up, display brightness etc.
User settings:
User settings are, among others, desired room temperature, desired DHW temperature, schedules, heat curve, limitation values etc.
Go to factory:
Restores the factory settings.
To:
Copy direction
System settings
User settings
Start copying
A more detailed description of how to use the individual ‘Key functions’ can also be seen in ‘Inserting the ECL application key’.
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6.8 System
6.8.1 ECL version
In ‘ECL version’ you will always be able to find an overview of the data related to your electronic controller.
Please have this information available if you need to contact your
Danfoss sales organization concerning the controller.
Information about your ECL Application Key can be found in ‘Key functions’ and ‘ Key overview’.
Code no.:
Hardware:
Software:
Serial no.:
Production week:
The Danfoss sales and order no.
for the controller
Hardware version of the controller
Software version of the controller
Unique number for the individual controller
Week no. and year (WW.YYYY)
Example, ECL version
6.8.2 Display
Backlight (display brightness)
Circuit
Adjust the brightness of the display.
0:
10:
Weak backlight.
Strong backlight.
Setting range
0 ... 10
60058
Factory setting
5
Contrast (display contrast)
Circuit
Adjust the contrast of the display.
0:
10:
Low contrast.
High contrast.
Setting range
0 ... 10
60059
Factory setting
3
6.8.3 Communication
Modbus addr.
Circuit Setting range
1 ... 247
Set the Modbus address if the controller is part of a Modbus network.
38
Factory setting
1
1 ... 247: Assign the Modbus address within the stated setting range.
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ECL 485 addr. (master / slave address)
Circuit Setting range
0 ... 15
2048
Factory setting
15
This settting is relevant if more controllers are working in the same ECL
Comfort system (connected via the ECL 485 communication bus) and / or
Remote Control Units (ECA 30 / 31) are connected.
0: The controller works as slave.
The slave receives information about the outdoor temperature (S1), system time, and signal for DHW demand in the master.
1 ... 9: The controller works as slave.
The slave receives information about the outdoor temperature (S1), system time, and signal for DHW demand in the master. The slave sends information about the desired flow temperature to the master.
10 ... 14: Reserved.
15: The ECL 485 communication bus is active.
The controller is master. The master sends information about the outdoor temperature (S1) and system time.
Connected Remote Control Units (ECA 30 / 31) are powered.
The ECL Comfort controllers can be connected via the ECL 485 communication bus to perform a larger system (the ECL 485 communication bus can connect to max. 16 devices).
Each slave must be configured with its own address (1 ... 9).
However, more slaves can have the address 0 if they only have to receive information about outdoor temperature and system time
(listeners).
The total cable length of max. 200 m (all devices incl. the internal ECL
485 communication bus) should not be exceeded.
Cable lengths of more than 200 m may cause noise sensibility (EMC).
Service Pin
Circuit Setting range
0 / 1
This setting is only used in connection with set-up of Modbus communication.
2150
Factory setting
0
Ext. reset
Circuit Setting range
0 / 1
This setting is only used in connection with set-up of Modbus communication.
2151
Factory setting
0
6.8.4 Language
Language
Circuit
Choose your language.
Setting range
English / ‘Local’
2050
Factory setting
English
Local language is selected during installation. If you want to change to another local language, the application must be reinstalled. However, it is always possible to change between the local language and English.
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7.0 Miscellaneous
7.1 Frequently asked questions
The definitions apply to the Comfort 210 as well as ECL Comfort
310 series. Consequently, you might come across expressions that are not mentioned in your guide.
The time shown in the display is one hour off?
See ‘Time and Date’.
The time shown in the display is not correct?
The internal clock may have been reset, if there has been a power break for more than 72 hours.
Go to the 'Common controller settings' and 'Time & Date' to set the correct time.
The ECL Application Key is lost?
Switch the power off and on again to see the system type and the software generation of the controller or go to 'Common controller settings' >'Key functions' > 'Application'. The system type (e.g.
TYPE A266.1) and the system diagram is displayed.
Order a replacement from your Danfoss representative (e.g. ECL
Application Key A266).
Insert the new ECL Application Key and copy your personal settings from the controller to the new ECL Application Key, if required.
The room temperature is too low?
Make sure that the radiator thermostat does not limit the room temperature.
If you still cannot obtain the desired room temperature by adjusting the radiator thermostats, the flow temperature is too low. Increase the desired room temperature (display with desired room temperature). If this does not help, adjust the ‘Heat curve’
(‘Flow temp.’).
The room temperature is too high during saving periods?
Make sure that the min. flow temperature limitation ('Temp. min.') is not too high.
The temperature is unstable?
Check that the flow temperature sensor is correctly connected and in the right place. Adjust the control parameters ('Control par.').
If the controller has a room temperature signal, see 'Room limit'.
The controller does not operate and the control valve is closed?
Check that the flow temperature sensor is measuring the correct value, see 'Daily use' or 'Input overview'.
Check the influence from other measured temperatures.
How to make an extra comfort period in the schedule?
You can set an additional comfort period by adding new ‘Start’ and ‘Stop’ times in ‘Schedule’.
How to remove a comfort period in the schedule?
You can remove a comfort period by setting start and stop times to the same value.
How to restore your personal settings?
Please read the chapter concerning ‘Inserting the ECL Application
Key’.
How to restore the factory settings?
Please read the chapter concerning ‘Inserting the ECL Application
Key’.
Why can’t the settings be changed?
The ECL Application Key has been removed.
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How to react on alarms?
An alarm indicates that the system is not operating satisfactorily.
Please contact your installer.
What does P and PI control mean?
P control: Proportional control.
By using a P control, the controller will change the flow temperature proportional to the difference between a desired and an actual temperature, e.g. a room temperature.
A P control will always have an offset which not will disappear over time.
PI control: Proportional and Integrating control.
A PI control does the same as a P control, but the offset will disappear over time.
A long ‘Tn’ will give a slow but stable control, and a short ‘Tn’ will result in a fast control but with a higher risk of unstability.
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7.2 Definitions
The definitions apply to the Comfort 210 as well as ECL Comfort
310 series. Consequently, you might come across expressions that are not mentioned in your guide.
Air duct temperature
Temperature measured in the air duct where the temperature is to be controlled.
Alarm function
Based on the alarm settings, the controller can activate an output.
Anti-bacteria function
For a defined period, the DHW temperature is increased in order to neutralize dangerous bacteria, e.g. Legionella.
Balance temperature
This setpoint is the basis for the flow / air duct temperature. The balance temperature can be adjusted by the room temperature, the compensation temperature and the return temperature. The balance temperature is only active if a room temperature sensor is connected.
Comfort operation
Normal temperature in the system controlled by the schedule.
During heating the flow temperature in the system is higher to maintain the desired room temperature. During cooling the flow temperature in the system is lower to maintain the desired room temperature.
Comfort temperature
Temperature maintained in the circuits during comfort periods.
Normally during daytime.
Compensation temperature
A measured temperature influencing the flow temperature reference / balance temperature.
Desired flow temperature
Temperature calculated by the controller on basis of the outdoor temperature and influences from the room and / or return temperatures. This temperature is used as a reference for the control.
Desired room temperature
Temperature which is set as the desired room temperature. The temperature can only be controlled by the ECL Comfort controller if a room temperature sensor is installed.
If a sensor is not installed, the set desired room temperature however still influences the flow temperature.
In both cases the room temperature in each room is typically controlled by radiator thermostats / valves.
Desired temperature
Temperature based on a setting or a controller calculation.
Dew point temperature
Temperature at which the humidity in the air condensates.
DHW circuit
The circuit for heating the domestic hot water (DHW).
Factory settings
Settings stored on the ECL Application Key to simplify the set up of your controller the first time.
Flow temperature
Temperature measured in the flow at any time.
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Flow temperature reference
Temperature calculated by the controller on basis of the outdoor temperature and influences from the room and / or return temperatures. This temperature is used as a reference for the control.
Heat curve
A curve showing the relationship between actual outdoor temperature and required flow temperature.
Heating circuit
The circuit for heating the room / building.
Holiday schedule
Selected days can be programmed to be in comfort, saving or frost protection mode. Besides this, a day schedule with comfort period from 07.00 to 23.00 can be selected.
Humidity, relative
This value (stated in %) refers to the indoor moisture content compared to the max. moisture content. The relative humidity is measured by the ECA 31 and is used for the calculation of the dew point temperature.
Limitation temperature
Temperature that influences the desired flow / balance temperature.
Log function
The temperature history is displayed.
Master / slave
Two or more controllers are interconnected on the same bus, the master sends out e.g. time, date and outdoor temperature.
The slave receives data from master and sends e.g. desired flow temperature value.
Pt 1000 sensor
All sensors used with the ECL Comfort controller are based on the
Pt 1000 type (IEC 751B). The resistance is 1000 ohm at 0 °C and it changes with 3.9 ohm / degree.
Optimization
The controller optimizes the start time of the scheduled temperature periods. Based on the outdoor temperature, the controller automatically calculates when to start in order to reach the comfort temperature at the set time. The lower the outdoor temperature, the earlier the start time.
Outdoor temperature trend
The arrow indicates the tendency, i.e. whether the temperature rises or falls.
Refill water function
If the measured pressure in the heating system is too low (e.g.
due to a leakage), water can be supplemented.
Return temperature
The temperature measured in the return influences the desired flow temperature.
Room temperature sensor
Temperature sensor placed in the room (reference room, typically the living room) where the temperature is to be controlled.
Room temperature
Temperature measured by the room temperature sensor or the Remote Control Unit. The room temperature can only be controlled directly if a sensor is installed. The room temperature influences the desired flow temperature.
Schedule
Schedule for periods with comfort and saving temperatures. The schedule can be made individually for each week day and may consist of up to 3 comfort periods per day.
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Saving temperature
Temperature maintained in the heating / DHW circuit during saving temperature periods.
Pump control
One circulation pump is working and the other is the spare circulation pump. After a set time, the roles are exchanged.
Weather compensation
Flow temperature control based on the outdoor temperature.
The control is related to a user-defined heat curve.
2-point control
ON / OFF control e.g. circulation pump, change-over valve or damper control.
3-point control
Opening, closing or no action of the actuator for the motorized control valve. No action means that the actuator remains in its current position.
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Installer:
By:
Date:
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