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Danfoss ECL Comfort 210 Installation Manual

Application a275 / a375
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Installation Guide
ECL Comfort 210 / 310, application A275 / A375

1.0 Table of Contents

1.0 Table of Contents ............................................... 1
1.1
Important safety and product information. . . . . . . . . . . . . . . . . . . . . 2
2.0 Installation ........................................................ 5
2.1
Before you start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2
Identifying the system type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.3
Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
2.4
Placing the temperature sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
2.5
Electrical connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
2.6
Inserting the ECL Application Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
2.7
Check list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
2.8
Navigation, ECL Application Key A275 . . . . . . . . . . . . . . . . . . . . . . . . . 82
3.0 Daily use ......................................................... 90
3.1
How to navigate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
3.2
Understanding the controller display . . . . . . . . . . . . . . . . . . . . . . . . . . 91
3.3
3.4
Monitoring temperatures and system
components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
3.5
Influence overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
3.6
Manual control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
3.7
Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
4.0 Settings overview .......................................... 100
5.0 Settings, circuit 1 ........................................... 103
5.1
Flow (boiler) temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
5.2
Room limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
5.3
Return limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
5.4
Optimization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
5.5
Boiler. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
5.6
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
Danfoss District Energy
6.0 Settings, circuit 2 ........................................... 123
6.1
Flow temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
6.2
Tank temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
6.3
Room limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
6.4
Return limit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
6.5
Optimization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
6.6
Control parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
6.7
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
6.8
Anti-bacteria. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
6.9
Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 146
7.0 Settings, circuit 3 ........................................... 148
7.1
Tank temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
7.2
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
7.3
Anti-bacteria. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153
8.0 Common controller settings............................ 155
8.1
Introduction to 'Common controller settings' . . . . . . . . . . . . . . 155
8.2
Time & Date. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
8.3
Holiday . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 157
8.4
Input overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
8.5
Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160
8.6
Output override. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161
8.7
Key functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
8.8
System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
9.0 Miscellaneous ................................................ 167
9.1
Several controllers in the same system . . . . . . . . . . . . . . . . . . . . . . 167
9.2
Frequently asked questions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
9.3
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
VI.GU.L1.02
DEN-SMT/DK
1

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  • Page 1: Table Of Contents

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 1.0 Table of Contents 1.0 Table of Contents ..........1 6.0 Settings, circuit 2 ........... 123 Important safety and product information..... 2 Flow temperature.

  • Page 2: Important Safety And Product Information

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 1.1 Important safety and product information 1.1.1 Important safety and product information This Installation Guide is associated with ECL Application Key A275 (order code no. 087H3814). The ECL Key A275 contains two sets of applications: one set for A275 (A275.1 / A275.2 / A275.3) and another set for A375 (A375.1...
  • Page 3 Installation Guide ECL Comfort 210 / 310, application A275 / A375 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.
  • Page 4 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The ID no. is unique for the selected parameter. Example First digit Second digit Last three digits 11174 Circuit 1 Parameter no. 12174 Circuit 2 Parameter no. If an ID description is mentioned more than once, it means that there are special settings for one or more system types.

  • Page 5: Installation

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 2.0 Installation 2.1 Before you start The application A275.1 is very flexible. These are the basic Typical A275.1 application: principles: ECL 210 / (310) Heating (circuit 1): Typically, the boiler temperature is adjusted according to your requirements.
  • Page 6 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The application A275.2 is very flexible. These are the basic Typical A275.2 application: principles: ECL 210 / (310) Heating (circuit 1): Typically, the boiler temperature is adjusted according to your requirements.
  • Page 7 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The application A275.2 is very flexible. These are the basic Typical A275.2 application: principles: ECL 210 / (310) DHW (circuit 2): By means of a week schedule (up to 3 ‘Comfort’ periods / day), the DHW circuit can be in ‘Comfort’...
  • Page 8 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The application A275.3 is very flexible. These are the basic Typical A275.3 application: principles: ECL 210 / (310) Heating (circuit 1): Typically, the boiler temperature is adjusted according to your requirements.
  • Page 9 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The application A275.3 is very flexible. These are the basic Typical A275.3 application: principles: ECL 210 / (310) Heating (circuit 2): Typically, the flow temperature is adjusted according to your requirements.
  • Page 10 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The application A275.3 is very flexible. These are the basic Typical A275.3 application: principles: ECL 210 / (310) DHW (circuit 3): By means of a week schedule (up to 3 ‘Comfort’ periods / day), the DHW circuit can be in ‘Comfort’...
  • Page 11 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Application A275 in general: Unused input can, by means of an override switch, be used to override the schedule to a fixed 'Comfort' or 'Saving' mode. Modbus communication to a SCADA system can be established.
  • Page 12 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The application A375.1 is very flexible. These are the basic Typical A375.1 application: principles: ECL 310 The applications A375.1 / A375.2 / A375.3 can ON / OFF control up to 8 burner steps.
  • Page 13 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The application A375.2 is very flexible. These are the basic Typical A375.2 application: principles: ECL 310 The applications A375.1 / A375.2 / A375.3 can ON / OFF control up to 8 burner steps.
  • Page 14 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The application A375.2 is very flexible. These are the basic Typical A375.2 application: principles: ECL 310 DHW (circuit 2): By means of a week schedule (up to 3 ‘Comfort’ periods / day), the + ECA 32 DHW circuit can be in ‘Comfort’...
  • Page 15 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The application A375.3 is very flexible. These are the basic Typical A375.3 application: principles: ECL 310 The applications A375.1 / A375.2 / A375.3 can ON / OFF control up to 8 burner steps.
  • Page 16 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The application A375.3 is very flexible. These are the basic Typical A375.3 application: principles: ECL 310 Heating (circuit 2): Typically, the flow temperature is adjusted according to your + ECA 32 requirements.
  • Page 17 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The application A375.3 is very flexible. These are the basic Typical A375.3 application: principles: ECL 310 DHW (circuit 3): By means of a week schedule (up to 3 ‘Comfort’ periods / day), the + ECA 32 DHW circuit can be in ‘Comfort’...
  • Page 18 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Applications A375 in general: Unused input can, by means of an override switch, be used to override the schedule to a fixed 'Comfort' or 'Saving' mode. Modbus communication to a SCADA system can be established.

  • Page 19: Identifying The System Type

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 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.
  • Page 20 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A275 APPLICATIONS: A275.1, example a Boiler ON / OFF control for a heating circuit. ECL 210 / (310) * = pressure relief valve A275.1, example b Boiler ON / OFF control for a heating circuit. The boiler circuit is equipped with a low loss header.
  • Page 21 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A275.2, example a Boiler ON / OFF control for a heating and a DHW circuit. Optional DHW priority. ECL 210 / (310) * = pressure relief valve At DHW heating P3 is switched ON and the desired boiler temperature lies a number of degrees above the desired DHW temperature.
  • Page 22 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A275.2, example b Boiler ON / OFF control for a heating and a DHW circuit. DHW priority. ECL 210 / (310) P3/M1 * = pressure relief valve At DHW heating P3 (changeover valve) is activated and the desired boiler temperature lies a number of degrees above the desired DHW temperature.
  • Page 23 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A275.2, example c Boiler ON / OFF control for a heating and a DHW circuit. Optional DHW priority. The boiler circuit is equipped with a low loss header. ECL 210 / (310) * = pressure relief valve The pump in the boiler circuit is not controlled.
  • Page 24 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A275.2, example d Boiler ON / OFF control for a heating and a DHW circuit. DHW priority. The boiler circuit is equipped with a low loss header. ECL 210 / (310)
  • Page 25 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A275.3, example a Boiler ON / OFF control for a direct heating circuit (1), a mixing circuit (2) and a DHW circuit (3). Optional DHW priority. ECL 210 / (310) * = pressure relief valve Heating circuit 2 can alternatively be a floor heating circuit.
  • Page 26 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A275.3, example b Boiler ON / OFF control for a direct heating circuit (1), a mixing circuit (2) and a DHW circuit (3). Partly DHW priority. ECL 210 / (310)
  • Page 27 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A275.3, example c Boiler ON / OFF control for a direct heating circuit (1), a mixing circuit (2) and a DHW circuit (3). DHW priority. ECL 210 / (310)
  • Page 28 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A275.3, example d Boiler ON / OFF control for a direct heating circuit (1), a mixing circuit (2) and a DHW circuit (3). Optional DHW priority. The mixing circuit (2) is controlled by means of a 4-port mixing valve.
  • Page 29 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A275.3, example e Boiler ON / OFF control for a direct heating circuit (1), a mixing circuit (2) and a DHW circuit (3). Optional DHW priority. The boiler circuit is equipped with a low loss header.
  • Page 30 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A275.3, example f Boiler ON / OFF control, a mixing circuit control and a DHW circuit control. Optional DHW priority. ECL 210 / (310) * = pressure relief valve At DHW heating P3 is switched ON and the desired boiler temperature lies a number of degrees above the desired DHW temperature.
  • Page 31 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A275.3, example g Boiler ON / OFF control for a direct heating circuit (1) and a mixing circuit (2). ECL 210 / (310) * = pressure relief valve Heating circuit 2 can alternatively be a floor heating circuit.
  • Page 32 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A375 APPLICATIONS: A375.1, example a One boiler with 2 x burner ON / OFF control for a heating circuit. ECL 310 * = pressure relief valve Fixed sequence: Burner 1 must be switched ON before burner 2 can be switched ON.
  • Page 33 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A375.1, example b 2 x boiler ON / OFF control for a heating circuit. ECL 310 * = pressure relief valve Rotating sequence: Burner 1 is active before burner 2. Next day burner 2 is active before burner 1.
  • Page 34 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A375.1, example c One boiler with 2 x burner ON / OFF control for a heating circuit. The boiler circuit is equipped with a low loss header. ECL 310 * = pressure relief valve The pump in the boiler is not controlled.
  • Page 35 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A375.1, example d 2 x boiler ON / OFF control for a heating circuit. The boiler circuit is equipped with a low loss header. ECL 310 * = pressure relief valve The pumps in the boiler are not controlled.
  • Page 36 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A375.1, example e Two boilers with 2 x burner ON / OFF control for a heating circuit. ECL 310 * = pressure relief valve Fixed sequence for each boiler: Burner 1 (3) must be switched ON before burner 2 (4) can be switched ON.
  • Page 37 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A375.1, example f Up to 4 x boiler ON / OFF control for a heating circuit. ECL 310 * = pressure relief valve Rotating sequence of the boilers: Boiler 1 - 2 - 3 - 4. Next day: Boiler 2 - 3 - 4 -1. Following day: Boiler 3 - 4 -1 - 2 and so on.
  • Page 38 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A375.1, example g Up to 8 x boiler ON / OFF control for a heating circuit. ECL 310 + ECA 32 * = pressure relief valve The extension module ECA 32 is used to control boiler 5, 6, 7 and 8.
  • Page 39 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A375.1, example h Up to 8 x boiler ON / OFF control for a heating circuit. The first boiler (high efficiency) has highest priority. ECL 310 + ECA 32 * = pressure relief valve The first boiler can be a heat pump.
  • Page 40 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A375.1, example I Up to 8 x boiler ON / OFF control for a heating circuit. The first two boilers (high efficiency) have highest priority. ECL 310 + ECA 32...
  • Page 41 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A375.2, example a Up to 8 x boiler ON / OFF control for a heating circuit and a DHW circuit. ECL 310 + ECA 32 * = pressure relief valve The application drawing shows a general and basic installation.
  • Page 42 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A375.3, example a Up to 8 x boiler ON / OFF control for a direct heating circuit (1), a mixing circuit (2) and a DHW circuit (3). Optional DHW priority.

  • Page 43: Mounting

    Mounting on a wall • Mounting on a DIN rail (35 mm) ECL Comfort 210 can be mounted in an ECL Comfort 310 base part (for future upgrade). 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.
  • Page 44 Installation Guide ECL Comfort 210 / 310, application A275 / A375 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.
  • Page 45 Installation Guide ECL Comfort 210 / 310, application A275 / A375 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.

  • Page 46: 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.
  • Page 47 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Pt 1000 temperature sensor (IEC 751B, 1000 Ω / 0 °C) Relationship between temperature and ohmic value: Ω °C Ω 1600 1500 1400 1000 1300 1039 1078 1117 1200...

  • Page 48: Electrical Connections

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 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). Danfoss District Energy DEN-SMT/DK VI.GU.L1.02...
  • Page 49 Installation Guide ECL Comfort 210 / 310, application A275 / A375 2.5.2 Electrical connections, 230 V a.c., power supply, pumps, motorized control valves etc. Application A275.1 / A275.2 Terminal Description Max. load Alarm (A1) 4 (2) A / 230 V a.c.* Phase for pumps and burner DHW heating pump ON / OFF, circuit 2 (A275.2 only)
  • Page 50 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Alternative connection for P3 / M1, changeover valve (A275.2): Danfoss District Energy DEN-SMT/DK VI.GU.L1.02...
  • Page 51 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Application A275.3 Terminal Description Max. load Phase for circulation pump P4, circuit 2 Circulation pump ON / OFF, circuit 2 4 (2) A / 230 V a.c.* Phase for pumps and burner 4 (2) A / 230 V a.c.*...
  • Page 52 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Alternative connection for P3 / M1, changeover valve: Danfoss District Energy DEN-SMT/DK VI.GU.L1.02...
  • Page 53 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Application A375.1 (up to 4 burner steps) Terminal Description Max. load Phase for alarm and burner B4 Alarm (A1) 4 (2) A / 230 V a.c.* Burner ON / OFF 4 (2) A / 230 V a.c.*...
  • Page 54 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Application A375.1 (burner steps 5–8): Description Terminal Max. load Phase for burner B5 Burner ON / OFF 4 (2) A / 230 V a.c.* Not to be used Phase for burner B6 Burner ON / OFF 4 (2) A / 230 V a.c.*...
  • Page 55 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Application A375.2 — up to 2 burner steps, P4 is the circulation pump in the DHW circuit Application A375.3 — up to 2 burner steps, P4 is the circulation pump in heating circuit 2...
  • Page 56 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Alternative connection for P3 / M1, changeover valve: Application A375.2 / A375.3 (burner steps 3–6): Terminal Description Max. load Phase for burner B3 Burner ON / OFF 4 (2) A / 230 V a.c.*...
  • Page 57 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Application A375.2 / A375.3 (burner steps 7–8) Terminal Description Max. load Phase for control of burner steps 7 and 8 Connection for motorized control valve - opening, circuit 2 (A375.3) 0.2 A / 230 V a.c.
  • Page 58 Installation Guide ECL Comfort 210 / 310, application A275 / A375 2.5.3 Electrical connections, safety thermostats, 230 V a.c. or 24 V a.c. Safety thermostats can be used for circuit 2 (M2) in application A275.3 / A375.3. The drawings below are intended for general use.
  • Page 59 Installation Guide ECL Comfort 210 / 310, application A275 / A375 ECL 210 / 310 With safety thermostat, 2–step closing: Motorized control valve with safety function ECL 210 / 310 ECL 210 / 310 When ST1 is activated by a high temperature (the TR temperature), the motorized control valve is closed gradually.
  • Page 60 Installation Guide ECL Comfort 210 / 310, application A275 / A375 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 DEN-SMT/DK VI.GU.L1.02...
  • Page 61 Installation Guide ECL Comfort 210 / 310, application A275 / A375 2.5.4 Electrical connections, 24 V a.c., power supply, pumps, motorized valves etc. Application A275.1 / A275.2 Double-insulated (two-chamber) transformer Terminal Description Max. load Alarm (A1) 4 (2) A / 24 V a.c.* Phase for control of pumps and burner Control of DHW heating pump ON / OFF, circuit 2 (A275.2 only)
  • Page 62 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Alternative connection for P3 / M1, changeover valve (A275.2): Danfoss District Energy DEN-SMT/DK VI.GU.L1.02...
  • Page 63 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Application A275.3 Double-insulated (two-chamber) transformer Terminal Description Max. load Phase for control of circulation pump P4, circuit 2 4 (2) A / 24 V a.c.* Control of circulation pump ON / OFF, circuit 2...
  • Page 64 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Alternative connection for P3 / M1, changeover valve: Danfoss District Energy DEN-SMT/DK VI.GU.L1.02...
  • Page 65 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Application A375.1 (up to 4 burner steps) Double-insulated (two-chamber) transformer Terminal Description Max. load Phase for alarm and burner B4 Alarm (A1) 4 (2) A / 24 V a.c.* Burner ON / OFF 4 (2) A / 24 V a.c.*...
  • Page 66 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Application A375.1 (burner steps 5–8): Double-insulated (two-chamber) transformer Terminal Description Max. load Phase for burner B5 Burner ON / OFF 4 (2) A / 24 V a.c.* Not to be used...
  • Page 67 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Application A375.2 — up to 2 burner steps, P4 is the circulation pump in the DHW circuit Application A375.3 — up to 2 burner steps, P4 is the circulation pump in heating circuit 2...
  • Page 68 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Alternative connection for P3 / M1, changeover valve: Application A375.2 / A375.3 (burner steps 3–6): Double-insulated (two-chamber) transformer Terminal Description Max. load Phase for burner B3 Burner ON / OFF 4 (2) A / 24 V a.c.*...
  • Page 69 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Application A375.2 / A375.3 (burner steps 7–8) Double-insulated (two-chamber) transformer Terminal Description Max. load Phase for control of burner steps 7 and 8 1 A / 24 V a.c.
  • Page 70 Installation Guide ECL Comfort 210 / 310, application A275 / A375 2.5.5 Electrical connections, Pt 1000 temperature sensors and signals A275: Type Terminal Sensor / description (recomm.) S1 Outdoor temperature sensor* ESMT 29 and 30 S2 A275.3 only: ESM-11 / ESMB /...
  • Page 71 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A375: Type Terminal Sensor / description (recomm.) S1 Outdoor temperature sensor* ESMT 29 and 30 28 and 30 S2 A375.3 only: ESM-11 / ESMB / Return temperature sensor, ESMC / ESMU...
  • Page 72 Installation Guide ECL Comfort 210 / 310, application A275 / A375 A375 only: ECL 310 Connection of voltage signal (0–10 V) for external control of desired boiler temperature 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).
  • Page 73 Installation Guide ECL Comfort 210 / 310, application A275 / A375 2.5.6 Electrical connections, ECA 30 / 31 Type Terminal Terminal Description ECA 30 / 31 ECA 30 / 31 (recomm.) ECL 210 / 310 Twisted pair Cable 2 x...
  • Page 74 Installation Guide ECL Comfort 210 / 310, application A275 / A375 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).
  • Page 75 Installation Guide ECL Comfort 210 / 310, application A275 / A375 2.5.8 Electrical connections, communication Electrical connections, Modbus ECL 210 / 310 Electrical connections, M-bus ECL 310 Danfoss District Energy VI.GU.L1.02 DEN-SMT/DK...

  • Page 76: Inserting The Ecl Application Key

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 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.
  • Page 77 Installation Guide ECL Comfort 210 / 310, application A275 / A375 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 .
  • Page 78 Installation Guide ECL Comfort 210 / 310, application A275 / A375 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).
  • Page 79 Installation Guide ECL Comfort 210 / 310, application A275 / A375 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 •...
  • Page 80 Installation Guide ECL Comfort 210 / 310, application A275 / A375 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.

  • Page 81: Check List

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 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.

  • Page 82: Navigation, Ecl Application Key A275

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 2.8 Navigation, ECL Application Key A275 Navigation, A275, circuits 1, 2 and 3 Home Application A275 A275.1 A275.2 A275.3 Circuit Circuit Circuit MENU ID nos. Function Schedule Flow Settings...
  • Page 83 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Navigation, A275, circuits 1, 2 and 3, continued Home Application A275 A275.1 A275.2 A275.3 Circuit Circuit Circuit MENU ID nos. Function Settings Application 11010 12010 ECA addr. 11017 Demand offset...
  • Page 84 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Navigation, application A275, Common controller settings Home Application A275, Common controller settings MENU ID no. Function A275.1 A275.2 A275.3 Time & Date Selectable Holiday Selectable Input overview 1 Outdoor T Outdoor acc.
  • Page 85 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Navigation, application A375, Common controller settings, continued Home Application A275, Common controller settings MENU ID no. Function A275.1 A275.2 A275.3 Key functions New application Erase application Application Factory setting...
  • Page 86 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Navigation, A375, circuits 1, 2 and 3 Home Application A375 A375.1 A375.2 A375.3 Circuit Circuit Circuit MENU ID nos. Function Schedule Schedule circ. P Flow Settings temperature Heat curve 11178 12178 Temp.
  • Page 87 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Navigation, A375, circuits 1, 2 and 3, continued Home Application A375 A375.1 A375.2 A375.3 Circuit Circuit Circuit MENU ID nos. Function Settings Application 11010 12010 ECA addr. 11017 Demand offset...
  • Page 88 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Navigation, application A375, Common controller settings Home Application A375, Common controller settings MENU ID no. Function A375.1 A375.2 A375.3 Time & Date Selectable Holiday Selectable Input overview 1 Outdoor T Outdoor acc.
  • Page 89 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Navigation, application A375, Common controller settings, continued Home Application A375, Common controller settings MENU ID no. Function A375.1 A375.2 A375.3 Key functions New application Erase application Application Factory setting...

  • Page 90: Daily Use

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 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.

  • Page 91: Understanding The Controller Display

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 3.2 Understanding the controller display This section describes the function in general for the ECL Comfort 210 / 310 series. The shown displays are typical and not application related. They might differ from the displays in your application.
  • Page 92 Installation Guide ECL Comfort 210 / 310, application A275 / A375 If the temperature value is displayed as "- -" the sensor in question is not connected. "- - -" the sensor connection is short-circuited. DHW circuit Overview display 1:...
  • Page 93 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The setting of the desired room temperature is important even if a room temperature sensor / Remote Control Unit is not connected. Setting the desired DHW temperature The desired DHW temperature can easily be adjusted in the overview displays for the DHW circuit.

  • Page 94: A General Overview: What Do The Symbols Mean

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 3.3 A general overview: What do the symbols mean? Symbol Description Symbol Description Sensor not connected or not used Outdoor temp. Sensor connection short-circuited Temperature Room temp. Fixed comfort day (holiday) DHW temp.
  • Page 95 Installation Guide ECL Comfort 210 / 310, application A275 / A375 3.4 Monitoring temperatures and system components This section describes the function in general for the ECL Comfort 210 / 310 series. The shown displays are typical and not application related.
  • Page 96 Installation Guide ECL Comfort 210 / 310, application A275 / A375 DHW circuit Display example with heat exchanger: The overview display in the DHW circuit ensures a quick overview of the actual and (desired) temperatures as well as the actual state of the system components.

  • Page 97: Influence Overview

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 3.5 Influence overview This section describes the function in general for the ECL Comfort 210 / 310 series. The shown displays are typical and not application related. They might differ from the displays in your application.

  • Page 98: Manual Control

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 3.6 Manual control This section describes the function in general for the ECL Comfort 210 / 310 series. The shown displays are typical and not application related. They might differ from the displays in your application.

  • Page 99: Schedule

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 3.7 Schedule 3.7.1 Set your schedule This section describes the schedule in general for the ECL Comfort 210 / 310 series. The shown displays are typical and not application related.

  • Page 100: Settings Overview

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 4.0 Settings overview It is recommendable to make a note of any changed settings in the empty columns. Setting Page Factory settings in circuit(s) Heat curve Temp. max. (flow temp. limit, max.) 11178 90 °C...
  • Page 101 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Setting Page Factory settings in circuit(s) Ext. input (external override), ECL 210 11141 Ext. input (external override) — ECL 310 11141 COM- Ext. mode (external override mode) 11142 FORT Heat curve Temp.
  • Page 102 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Setting Page Factory settings in circuit(s) P heat T (heat demand) 12078 20 °C P post-run 12040 Frost pr. T (frost protection temperature) 12093 10 °C Ext. input (external override), ECL 210 12141 Ext.

  • Page 103: Settings, Circuit 1

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 5.0 Settings, circuit 1 5.1 Flow (boiler) temperature Desired flow (boiler) temperature The ECL Comfort controller determines and controls the flow (boiler) temperature related to the outdoor temperature. This relationship is called the heat curve.
  • Page 104 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The heat curves represent the desired flow temperature at different outdoor temperatures and at a desired room temperature of 20 °C. 3.0 3.4 The small arrows ( ) indicate 6 different outdoor temperature values at which you can change the heat curve.
  • Page 105 Installation Guide ECL Comfort 210 / 310, application A275 / A375 External signal for desired flow temperature Example: Relationship between input voltage and displayed desired flow temperature A voltage (0 - 10 V) can be applied to the input terminal S10 in Desired flow temp.

  • Page 106: Room Limit

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 5.2 Room limit This section is only relevant if you have installed a room Influence temperature sensor or a Remote Control Unit. The controller adjusts the desired flow temperature to compensate for the difference between the desired and the actual room ‘Infl.
  • Page 107 Installation Guide ECL Comfort 210 / 310, application A275 / A375 11183 Infl. - min. (room temp. limitation, min.) Circuit Setting range Factory setting 0.0 ..9.9 Determines how much the desired flow temperature will be influenced (increased) if the actual room temperature is lower than the desired room temperature (P control).

  • Page 108: Return Limit

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 5.3 Return limit The return temperature limitation can be based on the outdoor Return temperature limitation temperature. The relationship between the return temperature limits and outdoor temperature is set in two coordinates.
  • Page 109 Installation Guide ECL Comfort 210 / 310, application A275 / A375 11034 High limit Y2 (return temp. limitation, high limit, Y-axis) Circuit Setting range Factory setting 10 ... 150 °C 60 °C Set the return temperature limitation referring to the outdoor temperature set in 'Low T out X2'.
  • Page 110 Installation Guide ECL Comfort 210 / 310, application A275 / A375 11085 Priority (priority for return temp. limitation) Circuit Setting range Factory setting OFF / ON Choose whether the return temperature limitation should overrule the set min. flow temperature ‘Temp. min.’ .

  • Page 111: Optimization

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 5.4 Optimization Reduction 11011 Auto saving (saving temp. dependent on outdoor temp.) Circuit Setting range Factory setting OFF / -29 ... 10 °C -15 °C 100% Below the set value for the outdoor temperature, the saving temperature setting has no influence.
  • Page 112 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Table I: Optimizer (optimizing time constant) 11014 System type Circuit Setting range Factory setting Left digit Heat accumulation of the building OFF / 10 ... 59 light Radiator Optimizes the start and stop times for the comfort temperature period to...
  • Page 113 Installation Guide ECL Comfort 210 / 310, application A275 / A375 11020 Based on (optimization based on room / outdoor temp.) Circuit Setting range Factory setting OUT / ROOM The optimized start and stop time can be based on either room or outdoor temperature.

  • Page 114: Boiler

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 5.5 Boiler 11046 Difference Temp. Actual boiler / flow Factory setting Circuit Setting range temp. (OFF /) 1 ... 50 K Difference The burner is switched ON and OFF to maintain the desired boiler temperature.
  • Page 115 Installation Guide ECL Comfort 210 / 310, application A275 / A375 11072 Sequence type (A375 applications) Circuit Setting range Factory setting 0 ... 4 Set the sequence type for the boiler system. Code: Boilers in sequence with automatic changeover of main boiler.
  • Page 116 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Protection 11047 Flow (boiler) temp. Circuit Setting range Factory setting 0.5 x ‘Difference’ OFF / ON Boiler temperature Choose whether the circulation pump for the boiler circuit (P1) should be stopped to prevent condensation in the boiler during the heating-up period.
  • Page 117 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Temp. 11074 Reaction, o. band (outside band) (A375 applications) Circuit Setting range Factory setting 5 ... 6000 s 60 s Band limit The set time (in seconds) determines the burner cut-in / cut-out when the Desired boiler / flow boiler / flow temperature is outside the ‘Band limit’...
  • Page 118 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Temp. 11075 Reaction, in band (A375 applications) Difference Circuit Setting range Factory setting 5 ... 6000 s 120 s Desired boiler / flow temp. The set time (in seconds) determines the burner cut-in / cut-out when the boiler / flow temperature is inside the ‘Band limit’...

  • Page 119: Application

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 5.6 Application 11010 ECA addr. (choice of Remote Control Unit) Factory setting Circuit Setting range The Remote Control Unit has no influence on the DHW control. OFF / A / B Decides the communication with the Remote Control Unit.

  • Page 120: Danfoss District Energy

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 P exercise (pump exercise) 11022 Circuit Setting range Factory setting OFF / ON Exercises the pump to avoid blocking in periods without heat demand. OFF: The pump exercise is not active.

  • Page 121: Danfoss District Energy

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 11141 Ext. input (external override), ECL 210 Circuit Setting range Factory setting OFF / S1 ... S8 Choose the input for 'Ext. input' (external override). By means of a switch the controller can be overridden to Comfort or Saving mode.

  • Page 122: Danfoss District Energy

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 11141 Ext. input (external override) — ECL 310 Circuit Setting range Factory setting OFF / S1 ... S10 Choose the input for 'Ext. input' (external override). By means of a switch the controller can be overridden to ‘Comfort’...

  • Page 123: Settings, Circuit 2

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 6.0 Settings, circuit 2 6.1 Flow temperature The ECL Comfort controller determines and controls the flow Desired flow temperature temperature related to the outdoor temperature. This relationship is called the heat curve.
  • Page 124 Installation Guide ECL Comfort 210 / 310, application A275 / A375 The heat curves represent the desired flow temperature at different outdoor temperatures and at a desired room temperature of 20 °C. 3.0 3.4 The small arrows ( ) indicate 6 different outdoor temperature values at which you can change the heat curve.

  • Page 125: Tank Temperature

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 6.2 Tank temperature 12193 Charge difference Temp. Factory setting Circuit Setting range Charge difference 1 ... 50 K 15 K Number of degrees above the desired DHW temperature that will result in Stop difference the desired boiler temperature for DHW heating.
  • Page 126 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Example with positive ‘Stop difference’ value: 12194 Stop difference Circuit Setting range Factory setting Temp. –50 ... 50 K Stop difference Number of degrees above or below the desired DHW temperature that will stop the DHW heating.

  • Page 127: Room Limit

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 6.3 Room limit This section is only relevant if you have installed a room Influence temperature sensor or a Remote Control Unit. The controller adjusts the desired flow temperature to compensate for the difference between the desired and the actual room ‘Infl.
  • Page 128 Installation Guide ECL Comfort 210 / 310, application A275 / A375 12183 Infl. - min. (room temp. limitation, min.) Circuit Setting range Factory setting 0.0 ..9.9 Determines how much the desired flow temperature will be influenced (increased) if the actual room temperature is lower than the desired room temperature (P control).

  • Page 129: Return Limit

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 6.4 Return limit The return temperature limitation can be based on the outdoor Return temperature limitation temperature. The relationship between the return temperature limits and outdoor temperature is set in two coordinates.
  • Page 130 Installation Guide ECL Comfort 210 / 310, application A275 / A375 12034 High limit Y2 (return temp. limitation, high limit, Y-axis) Circuit Setting range Factory setting 10 ... 150 °C 60 °C Set the return temperature limitation referring to the outdoor temperature set in 'Low T out X2'.
  • Page 131 Installation Guide ECL Comfort 210 / 310, application A275 / A375 12085 Priority (priority for return temp. limitation) Circuit Setting range Factory setting OFF / ON Choose whether the return temperature limitation should overrule the set min. flow temperature ‘Temp. min.’ .

  • Page 132: Optimization

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 6.5 Optimization Reduction 12011 Auto saving (saving temp. dependent on outdoor temp.) Circuit Setting range Factory setting OFF / -29 ... 10 °C -15 °C 100% Below the set value for the outdoor temperature, the saving temperature setting has no influence.
  • Page 133 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Temp. °C 12013 Ramp (reference ramping) Circuit Setting range Factory setting OFF / 1 ... 99 m The time (minutes) in which the desired flow temperature increases gradually to avoid load peaks in the heat supply.
  • Page 134 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Example: Optimization of Comfort from 07:00 - 22:00 12026 Pre-stop (optimized stop time) Circuit Setting range Factory setting 07:00 22:00 OFF / ON Schedule Disable the optimized stop time.
  • Page 135 Installation Guide ECL Comfort 210 / 310, application A275 / A375 12179 Cut-out (limit for heating cut-out) Temp. Actual outdoor temp. Accumulated outdoor temp. Circuit Setting range Factory setting OFF / 1 ... 50 °C 20 °C 18 °C The heating can be switched OFF when the outdoor temperature is higher than the set value.

  • Page 136: Control Parameters

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 6.6 Control parameters 12174 Motor pr. (motor protection) Circuit Setting range Factory setting OFF / 10 ... 59 m 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.
  • Page 137 Installation Guide ECL Comfort 210 / 310, application A275 / A375 12187 Nz (neutral zone) Circuit Setting range Factory setting The neutral zone is symmetrical around the desired flow temperature 1 ... 9 K value, i.e. half the value is above and half the value is below this temperature.
  • Page 138 Installation Guide ECL Comfort 210 / 310, application A275 / A375 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.). •...

  • Page 139: Application

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 6.7 Application 12010 ECA addr. (choice of Remote Control Unit) Factory setting Circuit Setting range The Remote Control Unit has no influence on the DHW control. OFF / A / B Decides the communication with the Remote Control Unit.
  • Page 140 Installation Guide ECL Comfort 210 / 310, application A275 / A375 DHW P post-run 12041 Circuit Setting range Factory setting 0 ... 30 m Set the DHW pump (P3) post-run time (minutes). The DHW pump can continue to be switched ON after the DHW heating procedure in order to utilize the remaining heat in the heat exchanger / boiler.
  • Page 141 Installation Guide ECL Comfort 210 / 310, application A275 / A375 12052 DHW priority (closed valve / normal operation) Circuit Setting range Factory setting This setting must be considered if this controller is a slave. OFF / ON The heating circuit can be closed when the controller acts as slave and when DHW heating / charging is active in the master.
  • Page 142 Installation Guide ECL Comfort 210 / 310, application A275 / A375 12093 Frost pr. T (frost protection temperature) Circuit Setting range Factory setting 5 ... 40 °C 10 °C Set the desired flow temperature to protect the DHW system against frost.
  • Page 143 Installation Guide ECL Comfort 210 / 310, application A275 / A375 12141 Ext. input (external override) — ECL 310 Circuit Setting range Factory setting OFF / S1 ... S10 Choose the input for 'Ext. input' (external override). By means of a switch the controller can be overridden to ‘Comfort’...

  • Page 144: Anti-Bacteria

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 6.8 Anti-bacteria On selected days during the week the DHW temperature can Desired temp. be increased in order to neutralize bacteria in the DHW system. The desired DHW temperature 'Desired T' (typically 80 °C) will be present for the selected day(s) and duration.
  • Page 145 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Start time Circuit Setting range Factory setting 00:00 ... 23:30 00:00 Set the start time for the anti-bacteria function. Duration Circuit Setting range Factory setting 10 ... 600 m 120 m Set the duration (minutes) for the anti-bacteria function.

  • Page 146: Alarm

    Alarm for monitoring the flow temperature is only available in circuit 2 in A275.3 and A375.3 applications. 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).
  • Page 147 Installation Guide ECL Comfort 210 / 310, application A275 / A375 12149 Delay Temp. Circuit Setting range Factory setting Flow temp. 1 ... 99 m 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.

  • Page 148: Settings, Circuit 3

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 7.0 Settings, circuit 3 7.1 Tank temperature 13193 Charge difference Temp. Circuit Setting range Factory setting Charge difference 1 ... 50 K 15 K Number of degrees above the desired DHW temperature that will result in Stop difference the desired boiler temperature for DHW heating.
  • Page 149 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Example with positive ‘Stop difference’ value: 13194 Stop difference Circuit Setting range Factory setting Temp. –50 ... 50 K Stop difference Number of degrees above or below the desired DHW temperature that will stop the DHW heating.

  • Page 150: Application

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 7.2 Application 13051 Ch.-o. valve / P (changeover valve / pump) Circuit Setting range Factory setting When the changeover valve is chosen, pump P1 is ON at heating as OFF / ON well as at DHW heating demand.
  • Page 151 Installation Guide ECL Comfort 210 / 310, application A275 / A375 13141 Ext. input (external override), ECL 210 Circuit Setting range Factory setting OFF / S1 ... S8 Choose the input for 'Ext. input' (external override). By means of a switch the controller can be overridden to Comfort or Saving mode.
  • Page 152 Installation Guide ECL Comfort 210 / 310, application A275 / A375 13142 Ext. mode (external override mode) Circuit Setting range Factory setting See also ‘Ext. input’ . COMFORT / SAVING COMFORT Choose external override mode. The mode override can be activated for saving or comfort mode.

  • Page 153: Anti-Bacteria

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 7.3 Anti-bacteria On selected days during the week the DHW temperature can Desired temp. be increased in order to neutralize bacteria in the DHW system. The desired DHW temperature 'Desired T' (typically 80 °C) will be present for the selected day(s) and duration.
  • Page 154 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Start time Circuit Setting range Factory setting 00:00 ... 23:30 00:00 Set the start time for the anti-bacteria function. Duration Circuit Setting range Factory setting 10 ... 600 m 120 m Set the duration (minutes) for the anti-bacteria function.

  • Page 155: Common Controller Settings

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 8.0 Common controller settings 8.1 Introduction to ‘Common controller settings’ Some general settings which apply to the entire controller are Circuit selector located in a specific part of the controller.

  • Page 156: Time & Date

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 8.2 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.

  • Page 157: Holiday

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 8.3 Holiday This section describes the function in general for the ECL Comfort 210 / 310 series. The shown displays are typical and not application related. They might differ from the displays in your application.
  • Page 158 Installation Guide ECL Comfort 210 / 310, application A275 / A375 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 Energy-saving trick: the ECA 30 / 31 when the controller is in scheduled mode: Use 'Going out' (the extended saving period) for airing purposes (e.g.

  • Page 159: Input Overview

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 8.4 Input overview This section describes the function in general for the ECL Comfort 210 / 310 series. The shown displays are typical and not application related. They might differ from the displays in your application.

  • Page 160: Log

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 8.5 Log This section describes the function in general for the ECL Comfort 210 / 310 series. The shown displays are typical and not application related. They might differ from the displays in your application.

  • Page 161: Output Override

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 8.6 Output override This section describes the function in general for the ECL Comfort 210 / 310 series. The shown displays are typical and not application related. They might differ from the displays in your application.

  • Page 162: Key Functions

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 8.7 Key functions New application Erase application: Removes the existing application. As soon as the ECL key is inserted, another application can be chosen. Application Gives an overview over the application and its subtypes of the ECL key in question.

  • Page 163: System

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 8.8 System 8.8.1 ECL version In ‘ECL version’ you will always be able to find an overview of the Example, ECL version data related to your electronic controller. Please have this information available if you need to contact your Danfoss sales organization concerning the controller.
  • Page 164 Installation Guide ECL Comfort 210 / 310, application A275 / A375 8.8.7 Raw input overview Measured temperatures, input status and voltages are displayed. In addition, a detection of malfunctions can be chosen for activated temperature inputs. The temperature sensor inputs have a measuring range from -60 ...
  • Page 165 Installation Guide ECL Comfort 210 / 310, application A275 / A375 8.8.9 Communication Modbus addr. Circuit Setting range Factory setting 1 ... 247 Set the Modbus address if the controller is part of a Modbus network. 1 ... 247: Assign the Modbus address within the stated setting range.
  • Page 166 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Ext. reset 2151 Factory setting Circuit Setting range 0 / 1 This setting is only used in connection with set-up of Modbus communication. Reset not activated. Reset. 8.8.10 Language...

  • Page 167: Miscellaneous

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 9.0 Miscellaneous 9.1 Several controllers in the same system When ECL Comfort controllers are interconnected by means of the ECL 485 communication bus (cable type: 2 x twisted pair), the...
  • Page 168 Installation Guide ECL Comfort 210 / 310, application A275 / A375 SLAVE controller: How to make use of the outdoor temperature signal and send information about the desired flow temperature back to the MASTER controller In the MASTER controller, the address in ‘ECL 485 addr. (master / slave address)’...

  • Page 169: Frequently Asked Questions

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 9.2 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.
  • Page 170 Installation Guide ECL Comfort 210 / 310, application A275 / A375 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.

  • Page 171: Definitions

    Installation Guide ECL Comfort 210 / 310, application A275 / A375 9.3 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.
  • Page 172 Installation Guide ECL Comfort 210 / 310, application A275 / A375 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.
  • Page 173 Installation Guide ECL Comfort 210 / 310, application A275 / A375 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.
  • Page 174 Installation Guide ECL Comfort 210 / 310, application A275 / A375 Installer: Date: Danfoss District Energy DEN-SMT/DK VI.GU.L1.02...
  • Page 175 Installation Guide ECL Comfort 210 / 310, application A275 / A375 *087H9092* *VIGUL102* Produced by Danfoss A/S © 02/2012...

This manual is also suitable for:

Ecl comfort 310

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