Danfoss L66 User Manual
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Danfoss L66 User Manual

Danfoss L66 User Manual

Ecl comfort controller
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L66
ECL Comfort
User's Guide
*087R8172*
*VIJDT202*
Installer's Guide

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Summary of Contents for Danfoss L66

  • Page 1 ECL Comfort User's Guide *087R8172* *VIJDT202*  Installer's Guide...
  • Page 2 The shown diagram is a fundamental and simplified example and does not contain all components that are necessary in a system. If the system you are about to install differs from the shown diagram of a standard heating system, feel free to sketch an outline for comparison.

  • Page 3: Table Of Contents

    Table of Contents Sections in the Installer’s Guide The documentation for the ECL Comfort controller is composed of numbered sections. Only sections relevant to your ECL Comfort controller are included here. Before you start Installation Identifying the system type Mounting the ECL Comfort controller Electrical connections 230 V a.c.

  • Page 4: Before You Start

    • User’s Guide: Yellow sections 1-7 • Installer's Guide: Grey sections 10 and onwards The application L66 is very flexible. These are the basic principles: Both circuits can control two pumps. Heating: Typically, the flow temperature is adjusted according to your requirements.

  • Page 5: Identifying The System Type

    Identifying the system type The ECL Comfort controller is a universal controller that can 10.2 Directly connected heating system and be used for various systems. Based on the shown standard indirectly connected DHW circuit systems, it is possible to configure additional systems. In this section you find the most frequently used systems.

  • Page 6: Mounting The Ecl Comfort Controller

    Mounting the ECL Comfort controller For easy access, you should mount the ECL Comfort controller near the system. Select one of the three following methods: • Mounting on a wall • Mounting on a DIN rail • Mounting in a panel Screws and rawlplugs are not supplied.

  • Page 7: Electrical Connections 230 V A.c

    4 (2) A / 230 V a.c. circuit II 230 V a.c. supply for pump relay This circuit diagram is only valid if Danfoss actuators are used The relays are to be connected as in the drawing without Wire cross section: 0.75 - 1.5 mm safety thermostat.

  • Page 8: Connecting And Placing The Temperature Sensors

    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. Terminal Description Type (recomm.)
  • Page 9 Connecting the room panel / remote control The ECA 60 / 61 / 62 / 63 is activated by the setting in line 10 (section 32). The ECA 60 / 61 / 62 / 63 is powered by the system device bus which means that the bus must be active.

  • Page 10: Inserting The Ecl Card

    Inserting the ECL Card Understanding the ECL Card The ECL Card contains factory settings for a standard system. If the actual system differs from the standard system, the controller must be adjusted accordingly. After the adjustment, the new settings should be stored on the ECL Card.

  • Page 11: Adjusting The Ecl Card Settings

    Adjusting the ECL Card Setting the time and date - settings line A General principles Actual time When the controller is connected and operating you can check and adjust all or some of the basic settings. Turn the ECL Card so that the grey side is facing you (see the example below).

  • Page 12: Monitoring Temperatures And System Units - Line B

    Monitoring temperatures Manual control - and system units - line B line B Controlled units Shift to manual mode. Controlled units Controller mode Flow temp. Return temp. (S3) (S4) Push and hold the shift button to see: - the calculated flow temperature - the desired return temperature limitation.

  • Page 13: Setting The Heat Curve - Line C

    Setting the heat curve - line C Parallel displacement Circuit Setting range Factory setting Slope -9 ... 9 K Displacement If you want to adjust the parallel displacement of the heat curve, push the shift button. The symbol for the parallel displacement will blink. Slope Make your adjustments.

  • Page 14: Heating Cut-Out - Line

    Heating cut-out - Flow temperature limits - line 1 line 2 Min. flow Max. flow temp. temp. Setting range Limit for heating cut-out Flow temperature limits, min. and max. Circuit Setting range Factory setting Circuit Setting range Factory setting 10 ... 30 °C 18 °C 10 ...

  • Page 15: Room Temperature Influence - Line

    Room temperature influence - line 3 B: Reference room temperature control Used if your system is not equipped with thermostats and you select the room with room temperature sensor as a This section is only relevant if you have installed a room temperature sensor or ECA 60 / ECA 61 / ECA 62 / ECA 63.

  • Page 16: Control Parameters - Lines

    Control parameters - lines 4-7 Proportional band, Xp Neutral zone, Nz Circuit Setting range Factory setting Circuit Setting range Factory setting I / II 1 ... 250 K 80 / 80 K I / II 0 ... 9 K 3 / 3 K Set the proportional band.

  • Page 17: Check List

    Check list ✓ ✓ Is the ECL Comfort controller ready for use? Adapting the ECL Comfort controller to the system Make sure that the correct power supply is Turn the ECL Card so that the grey side faces you connected to terminals 1 (Live) and 2 (Neutral). See and push , if necessary.

  • Page 18: Ecl Card Settings

    ECL Card settings ECL Card settings (circuit I) (circuit II) Time and date Time and date Section 17 Section 17 System information System information Sections 18 & 19 Sections 18 & 19 Heat curve Section 20 Setting ranges Factory settings Your settings Setting ranges Factory settings...
  • Page 19 Service parameters (10-199) Service parameters (10-199) Circuit I (heating and cooling) Circuit I (heating and cooling) Lines Setting ranges Factory settings Your settings Lines Setting ranges Factory settings Your settings 10 Choice of room panel / remote control 141 Override input selection OFF / 1 ...
  • Page 20 If you want to copy the new settings to the ECL Card temperature is above the set limit. The (recommended by Danfoss), see section 34. lower the outdoor temperature, the less the Make a note of your new settings in the parameter list in section temperature reduction.

  • Page 21: Service Parameters

    Service parameter(s) 12-13 Service parameter(s) 14-15 12 Boost 14 Optimizing time constant Circuit Setting range Factory setting Circuit Setting range Factory setting 0 ... 99% OFF / 10 ... 59 Shortens the heating-up period by increasing the desired flow Optimizes the start and stop times for the comfort temperature temperature by the percentage you set.
  • Page 22 Service parameter(s) 17-20 Service parameter(s) 21 17 Influence on desired flow temperature (T 21 Total stop flow.ref(I) Circuit Setting range Factory setting Circuit Setting range Factory setting OFF / 1 ... 20 K ON / OFF The desired flow temperature in heating circuit I can be influenced Decide whether you want a total stop during the setback by an external reference.
  • Page 23 Service parameter(s) 22-24 Service parameter(s) 30-34 22 Pump exercise 30 Return temperature limitation Circuit Setting range Factory setting Circuit Setting range Factory setting I / II ON / OFF OFF / OFF 10 ... 110 °C 50 °C Exercises the pump to avoid blocking in periods without heat Set the return temperature you accept for the heating / DHW demand.
  • Page 24 Service parameter(s) 31-34 Service parameter(s) 35 31 Return temperature limitation - upper limit (X-axis) 35 Return temperature influence - max. limitation Circuit Setting range Factory setting Circuit Setting range Factory setting -60 ... 20 °C 15 °C I / II -9.9 ...
  • Page 25 Service parameter(s) 36 Service parameter(s) 37 36 Return temperature influence - min. limitation 37 Time constant for return temperature limitation Circuit Setting range Factory setting Circuit Setting range Factory setting I / II -9.9 ... 0 ... 9.9 0.0 / 0.0 I / II OFF / 1 ...
  • Page 26 Service parameter(s) 43 Service parameter(s) 52 43 Parallel operation of DHW and heating circuits 52 Closed valve / normal operation Circuit Setting range Factory setting Circuit Setting range Factory setting OFF / 1 ... 99 K ON / OFF Choose whether the heating circuit is to operate in dependence of The heating circuit can be closed when the controller acts as slave the DHW circuit.
  • Page 27 Service parameter(s) 141 Service parameter(s) 142-153 141 Override input selection 142 Restart period, TR Circuit Setting range Factory setting Circuit Setting range Factory setting I / II OFF / 1 ... 6 OFF / OFF I / II OFF / 1 ... 99 min. 20 / 20 min.
  • Page 28 Service parameter(s) 145-153 Service parameter(s) 196-198 145 Changeover time, TP 196 Service pin - LON Circuit Setting range Factory setting Circuit Setting range Factory setting I / II 0.0 ... 23.9 16.1 / 16.1 ON / OFF The changeover time determines the moment when the activated This setting is only used in connection with LON communication pump stops and the deactivated pump starts.
  • Page 29 Service parameter(s) 199 199 Master / slave address Circuit Setting range Factory setting 0 ... 9, 15 The setting is relevant when more controllers are working in the same ECL Comfort system (connected via the system device bus (ECL Comfort BUS)). The slave receives information about the outdoor temperature (S1), system time, and signal for DHW demand in the master.

  • Page 30: Copying With The Ecl Card

    Copying with the ECL Card Check the ECL Card and the software generations (see Copy personal settings to additional controller(s) in following example). identical systems Ensure that the other controller(s) use(s) the same ECL Card Insert the ECL Card with the yellow side facing you. type.

  • Page 31: Factory Settings

    Definitions Air duct temperature Humidity, relative Temperature measured in the air duct where the temperature is This value (stated in %) refers to the indoor moisture content to be controlled. compared to the max. moisture content. The relative humidity is measured by the ECA 62 / 63 and is used for the calculation of Balance temperature the dew point temperature.
  • Page 32 How to restore your personal settings? Order a replacement from your Danfoss representative. Insert the ECL Card with the yellow side facing you. Go to line Insert the new ECL Card with the yellow side facing you and 9 (is not displayed), which is the second line below line 7.
  • Page 33 Advantages of the ECL Card Save your personal settings to the ECL Card Restore ECL Card data Go to line 9 (is not displayed), which is the second After establishing your favorite temperatures, comfort line below line 7. periods etc., and after copying these to the ECL Card, you can set alternative settings.
  • Page 34 Set your personal schedule Monitor the current schedules Add an extra comfort period Push the shift and + button simultaneously for Select between lines 1-7 (Monday, Tuesday ..2 seconds. Sunday) to see your individual schedules. Changeover time Line Circuit Time line The new period appears Periods with comfort temp.
  • Page 35 Select circuit mode Select circuit mode Set your room and DHW temperature During scheduled operation (clock), the state indicator (a white arrow) will show you the control mode of the selected Go to display C. circuit. The white arrow will blink when this is a heating circuit and it is in the optimizing period.

  • Page 36: Choose Your Favorite Display

    Choose your favorite display Choose your favorite display (circuit I) (circuit II) Choose the display - A, B, or C - for daily Choose the display - A, B, or C - for daily operations. operations. Room temperature - display A DHW temperature - display A Room temp.
  • Page 37 Choose your favorite display your comfort temperature (alarm) The ECL Comfort controller is designed by Danfoss for the Choose the alarm settings by pushing the button automatic temperature control of heating, domestic hot- until there is no circuit indication (display / lights).

  • Page 38: Select Circuit Mode

    Table of Contents Daily use Section Choose your favorite display Select circuit mode Set your room and DHW temperature Set your personal schedule Advantages of the ECL Card Hot points Definitions The documentation for the ECL Comfort controller is composed of numbered sections.

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