ECL Comfort Installation and Maintenance. User s Guide. ECL Comfort. C60 Double mixing controller C60. Table of Contents. Daily use.

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1 ECL COMFORT VI.7C.B4.0 C60 Table of Contents Daily use ECL Comfort User s Guide Section Choose favourite display Select controller mode 3 Adjust room temperature 4 Set personal day plan 5 Advantages of the 6 Hot points 7 Definitions The documentation for the ECL Comfort controller is composed of numbered sections. Only sections that are relevant to your ECL Comfort controller are included here. Installation and maintenance. Grey sections 0 and onwards. Turn the guide over. Your personal week plan: Heating Monday Tuesday 3 Wednesday 4 Thursday 5 Friday 6 Saturday 7 Sunday Heating Monday Tuesday 3 Wednesday 4 Thursday 5 Friday 6 Saturday 7 Sunday Factory settings are grey. 8-3 ECL Comfort Installation and Maintenance This guide is associated to 087B4756 Installer: C60 Double mixing controller Table of Contents Sections of the Installer s part of this guide The documentation for the ECL Comfort controller is composed of numbered sections. Only sections that are relevant to your ECL Comfort controller are included here. Before you start Installation 0 Identifying the system type Mounting the ECL Comfort controller 3 Electrical connections 4 V a.c. 4 Placing the temperature sensors 5 Inserting the Basic Set-up 6 Adjusting the settings 7 Setting the time and date - Line A 8 Monitoring temperatures and system units -Line B 9 Manual control - Line B 0 Setting the heat curve - Line C Heating cut-out - Line Flow temperature limits - Line 3 Room temperature influence - Line 3 6 Setting PI-regulation - Line 4-7 Control & Overviews 9 Check list 30 settings 3 Service parameters Extended Service Electrical connections 30 V a.c. 3 Adjusting the service parameters 0-99 Miscellaneous 34 Copying with the Daily use, turn the guide over sections 0-07 Choose favourite display Select controller mode 3 Adjust room temperatures 4 Set personal day plan 5 Advantages of the 6 Hot points 7 Definitions ECL COMFORT By: Date:

2 List of components: S S ECL Comfort 300 Outdoor temperature sensor (ESM-0) Room temperature sensor (ESM-0) - circuit I S3 S4 S5 S6 P P M M Flow temperature sensor (ESM-) - circuit I Return temperature sensor (ESM-) Flow temperature sensor (ESM-) - circuit II Room temperature sensor (ESM-) - circuit II Circulation pump for heating - circuit I Circulation pump for heating - circuit II Mixing valve with motor - circuit I Mixing valve with motor - circuit II Day plans Installation & maintenance The shown diagram is a fundamental and simplified example and does not contain all components that are necessary in heating systems. The, grey side for installation and maintenance. Lines A to C, and lines to 7 for basic settings, see overview section 30. B Heating system information B C Today s programme 3 C C B Extended service parameters, see section 3 If the system you are about to install is different than the shown diagram of a standard heating system, feel free to sketch an outline for comparison. Adaptation of heating systems, see section 0. The : Installer s instruction card must face you when you change settings. For daily use and during start-up, the yellow card must face you Heating - circuit II A Circuit Line indicator Heating - circuit I A Room temperature II Room temperature I / The display Each line, A, B, C,, etc. of the has its own display. See section. A Controller mode Manual operation (used only at maintenance and service) Automatic operation Circuit selector for switching between heating circuit I and II. The For daily use and your personal adjustments the yellow side of the must be facing you. The circuit indicator shows the selected heating circuit. Constant comfort temperature Adjust temperatures and values etc. Constant reduced temperature Standby mode Shift button. Switches between temperatures, changeover points etc. Arrow buttons. Switch between the lines of the. Arrow buttons. Switch between the lines of the. Shift button. Switches between temperatures, changeover points etc. Standby mode Constant reduced temperature Adjust temperatures and values etc. Constant comfort temperature Circuit selector for switching between heating circuit I and II. Automatic operation Manual operation (used only at maintenance and service) Circuit indicator Circuit selector Shift button Adjustment Controller mode Controller mode

3 Before you start Save energy - save money - improve your comfort temperature The ECL Comfort controller is designed by Danfoss for temperature control of heating systems. The ECL Comfort controller ensures you of the following; Room and hot water temperatures will be adjusted to your personal settings. Lower temperatures and lower energy consumption reduce costs and ensure optimum use of energy resources. The automatic pump motion program protects the circulation pump against blocking. Sketch an outline of your heating system The ECL Comfort controller is designed for a wide range of heating systems with different configurations and capacities. If your heating system differs from the diagrams shown in section 0, you may want to sketch an outline of the system about to be installed. This makes it easier to use the Installer s Guide, which will guide you step-by-step from installation to final adjustments before the end-user takes over. Note! The controller is pre-programmed with factory settings which are shown in the relevant sections of this guide. However, you might come across some settings that are not listed in this instruction. These settings are used in connection with optional modules, and you can find a description of the settings and the corresponding parameters in the instruction for optional module in question. How to use this guide This guide is divided into two parts: Daily Use (Turn the guide over) Yellow sections -7 Installation and maintenance: Grey sections 0 and onwards VI.7C.B4.0

4 0a Identifying the system type 0b Installation In this section you find the most frequently used systems. If your system is not quite as shown below, find the diagram which has the best resemblance to your system and make your own combinations. Alternatives using the same settings: Heat exchanger or direct district heating -, 3-, or 4-way control valve Heating system type 3 Radiator heating circuit and secondary connected floor heating circuit. Installation Heating system type Two parallel connected heating circuits with heat exchangers. Set line 7 to 4K Check line 4 in circuit I and II (gear motor/thermo actuator) Heating system type 4 Boiler with two parallel connected heating circuits with heat exchangers. Set line 7 to OFF Check line 4 in circuit I and II (gear motor/thermo actuator) Heating system type Two parallel connected heating circuits. Set line 7 to OFF Check line 4 in circuit I and II (gear motor/thermo actuator) Note! System diagrams in this instruction are principal drawings and do not contain all components which are necessary in heating systems. Set line 7 to OFF Check line 4 i circuit I and II (gear motor/thermo actuator)

5 Installation a Mounting the ECL Comfort controller For easy access, you should mount the ECL Comfort controller near the heating unit. Select one of the three following methods: Mounting on a wall Mounting on a DIN rail Mounting in a panel Screws and rawlplugs are not supplied. b Installation Mounting on a wall Socket for mounting on wall: Order code No. 087B49. Mount the terminal box on a wall with a smooth surface. Establish the electrical connections and position the controller in the box. Secure the controller with the fixing screw. Mounting on a DIN rail Mounting kit: Order code No. 087B45. A mounting kit is necessary to mount the box with the controller on a DIN rail. Mounting in a panel Connector set: Order code No. 087B48. The panel plate thickness must not exceed 3 mm. Prepare a cut-out with the dimensions 9 x 38 mm. Pull off the right lid by means of a screwdriver. Insert the controller into the panel cut-out and fix it with the two locks which are placed diagonally in two corners of the controller.

6 a Electrical connections - 30 V a.c. b Connecting the 30 V a.c. units Connecting the sensors Installation Installation Terminal Description Max. load L Supply voltage 30 V a.c. (Live) N Supply voltage 30 V a.c. (Neutral) 3 M Gear motor - open/cir. I 0. A 30 V a.c. 4 M Gear motor - close/cir. I alt.: ABV thermo actuator 0. A 30 V a.c V a.c. supply for M/cir. I 6 M Gear motor - open/cir. II 0. A 30 V a.c. 7 M Gear motor - close/cir. II 0. A 30 V a.c V a.c. supply for M/cir. II 9 P Circulation pump for 4()A 30 V a.c. heating circuit I 0 30 V a.c. supply for pump relay R P Circulation pump for heating circuit II 4()A 30 V a.c. 30 V a.c. supply for pump relay R Terminal Description Type (recommended) 5 and 6 System device bus 7 and 6 Outdoor sensor (S) ESM-0 8 and 6 Room sensor (S) circuit I ESM-0 9 and 6 Flow sensor (S3) circuit I ESMU/ESM-/ESMC 0 and 6 Return sensor (S4) ESMU/ESM-/ESMC and 6 Flow sensor (S5) circuit II ESMU/ESM-/ESMC and 6 Room sensor (S6) circuit II ESM-0 Establish the jumper from 6 to common terminal. Cable cross section for sensor connections: Min. 0.4 mm Total cable length: Max. 50 m (sensors and bus). Cable type: Copper cable Note! Cable lengths above 00 m may cause noise sensibility (EMC). Establish these jumpers: Jumper from to 5 Jumper from 5 to 8 Jumper from 8 to 0 Jumper from 0 to Jumper from to common N-terminal Cable cross section for voltage conductor: mm Cable length: Max. 50 m Electrical connections Max. x.5 mm cables can be inserted into each screw terminal.

7 3a Electrical connections - 4 V a.c. 3b Installation Connecting the 4 V a.c. and 30 V a.c. units Connecting the sensors Installation Terminal Description Max. load L Supply voltage 4 V a.c. N Supply voltage 4 V a.c. 3 M Gear motor - open/cir. I A 4 V a.c. 4 M Gear motor - close/cir. I alt.: ABV thermo actuator A 4 V a.c. 5 4 V a.c. supply for M/cir. I 6 M Gear motor - open/cir. II A 4 V a.c. 7 M Gear motor - close/cir. II A 4 V a.c. 8 4 V a.c. supply for M/cir. II 9 K* Relay for circulation pump for heating circuit I 0 4 V a.c. supply for pump relay K K* Relay for circulation pump for heating circuit II 4 V a.c. supply for pump relay K * K/K auxiliary relay Coil: 4 V a.c. Contacts: 4A 30 V a.c. Terminal Description Type (recommended) 5 and 6 System device bus 7 and 6 Outdoor sensor (S) ESM-0 8 and 6 Room sensor (S) circuit I ESM-0 9 and 6 Flow sensor (S3) circuit I ESMU/ESM-/ESMC 0 and 6 Return sensor (S4) ESMU/ESM-/ESMC and 6 Flow sensor (S5) circuit II ESMU/ESM-/ESMC and 6 Room sensor (S6) circuit II ESM-0 Establish the jumper from 6 to common terminal. Cable cross section for sensor connections: Min. 0.4 mm Total cable length: Max. 50 m (sensors and bus). Cable type: Copper cable Note! Cable lengths above 00 m may cause noise sensibility (EMC). Establish these jumpers: Jumper from to 5 Jumper from 5 to 8 Jumper from 8 to 0 Jumper from 0 to Jumper from to common N-terminal Cable cross section for voltage conductor: mm Cable length: Max. 50 m Electrical connections Max. x.5 mm cables can be inserted into each screw terminal.

8 Installation Placing the temperature sensors 4 It is important that the sensors are mounted in the correct position in your heating system. Special attention should be paid to the following sensors: Outdoor temperature sensor (ESM-0 type) The outdoor sensor should be mounted on the north side of the building where it is less likely to be exposed to direct sunshine. It should not be placed close to doors or windows. Installation Flow temperature sensor (ESMU, ESM- or ESMC types) Place the sensor max. 5 cm from the mixing point. In systems with heat exchanger, Danfoss recommends the ESMU-type to be inserted into the exchanger flow outlet. Make sure that the surface of the pipe is clean at the area where the sensor is mounted. Do not move the sensor after it has been fastened in order to avoid damage to the sensor element. Return temperature sensor (ESMU, ESM- or ESMC types) The return sensor should always be placed max. 5 cm from the mixing point. It should always be placed on a pipe in which the water flow never stops. Room temperature sensor (ESM-0, ECA 60 and 6 remote control) Place the room sensor in the room where the temperature is to be controlled. Do not place it on outside walls or close to radiators, windows or doors.

9 5a Inserting the 5b Installation Understanding the The contains factory settings for a standard heating system. If the actual heating system differs from the standard system, the controller must be adjusted accordingly. After the adjustment, the new settings should be stored on the. For copying and daily use including adjustment of temperatures and time periods, insert the with the yellow side facing you. Installation For system set-up adjustments, the grey ECL Card - the installer s side - must be facing you. As a main rule, the should always remain in the controller during service, maintenance and settings. How to insert your the first time After the power has been switched on, open the lid on the front controller. If the card is removed please note that: The controller settings are locked after approx. 0 min. The must not be exposed to direct heat or sunshine Place the with the yellow side facing you. This enables the controller to read the data. The controller immediately starts to copy the factory settings and heating system type from the. After copying, the display will show the heating system type the controller is set to control. After approx. 0 sec. the display will change to display line C. 0 CPY C99 C If several controllers are installed in the heating system you can write a title on the with a permanent ink pen. Line Circuit Time Outdoor temperature C Desired room temperature The controller is now ready to be set to control your heating system.

10 6 Adjusting the settings General principles When the controller is connected and operating you can check and adjust all or some of the basic settings on the grey. Setting the time and date - Line A Go to line A. A Actual time 7 Use the arrow buttons to move from line to line of the, for example line : Year Month, day Basic set-up Circuit Line indicator Settings to be adjusted Value in range indicator Use the minus/plus buttons to adjust the settings. In some displays more than one setting or value can be adjusted. Use the shift button to switch between the possibilities. The circuit selector shifts between circuit I and II. You can adjust all settings and service parameters individually in both circuits, ie. circuit II. Use the shift button to switch between minutes, hours, year, month and day Set the correct time and date In case of a power failure which lasts longer than hours, the time and the date have to be set again. All other settings are stored as programmed. Use the yellow to enter the day plan settings. See User s Guide, section 4. Basic set-up Update of the after maintenance and service All new settings can be stored on the. For details about copying, see section 34. Insert the ECL Card with the yellow side facing you. Go to line 9 (bottom line) 0 CPY C99 Accept to copy as indicated. No other keys are active. When the copying is finished display line C will appear C You can make other changes in the day plan, set time and date or change settings (see User s Guide).

11 8 Monitoring temperatures and system units - Line B Manual control - Line B 9 Go to line B. Go to line B. B Controlled units State indicator The circuit selector shifts between circuit I and II. Shift to manual mode Flow temperature Return temperature Controlled units B Controller mode Basic set-up Push the shift button to see: - the calculated flow temperature - the return temperature set points The activity of the motorized valve is shown as arrows below the valve symbol. When the circulation pump is operating, it is indicated as below the pump symbol. If a sensor is not mounted or is disconnected, the display will indicate it as - -. If the sensor is short-circuited, the display will indicate it as If you are in doubt, remove the controller and check the ohmic value between the relevant terminals. Relationship between temperature and ohmic value Select the unit you want to control. The selected unit symbol will flash. The gear motor opens or closes the valve as long as the the relevant button is pressed. The thermo actuator (according to version *)), closes (NO) or opens (NC) Basic set-up -0 C 96 Ohm 0 C 000 Ohm 0 C 039 Ohm 0 C 078 Ohm 30 C 7 Ohm 40 C 56 Ohm 50 C 95 Ohm 60 C 34 Ohm 70 C 73 Ohm Ohm the valve as long as the relevant button is pressed. *) NO - normally open NC - normally closed Pumps are switched off or on when the relevant button is pressed Check the activation direction of the motorized valve either by looking at it or by feeling whether the temperature of the actual pipe changes as expected Temperature This operation applies to both circuits. Press the button to select circuit II. Note! During manual operation, the pump motion is OFF.

12 0a Setting the heat curve - Line C 0b Go to line C. The symbol for the slope of the heat curve will flash. 90 oc,4,8, C 8 0 Slope Displacement ,0 0,6 40 0, Slope 30 Basic set-up I/II Adjust the slope of the heat curve, if required. If you want to adjust the parallel displacement of the heat curve, push the shift button. The symbol for the parallel displacement will flash. Parallel displacement l/ii Make your adjustments Floor heating systems This controller is factory set for radiator systems, which are typically high flow temperature systems. To control floor heating systems, which are typically low flow temperature systems, you need to change the heat curve according to your type of system. Slope Circuit Setting range Typical setting I oc Basic set-up Parallel displacement Circuit Setting range Typical setting I

13 Heating cut-out - Line Flow temperature limits - Line Limit for heating cut-out I/II C 8 C Flow temperature min., max. limits I/II C min. 40 C max. 90 C Go to line. Go to line. Basic set-up 8 C Temp 8 Set the outdoor temperature limit at which you want the heating system to stop. Actual T out Accumulated Tout Time Min. flow temperature Max. flow temperature Temperature range for flow temperature The left end of the range indicator flashes. Adjust the min. limit of the heating system. Select the max. limit. The right end of the range indicator flashes. Basic set-up Adjust the max. limit. Heating Heating off Heating This function can save energy by stopping the heating system when the outdoor temperature gets above a set limit. The heating system is activated again when the actual outdoor and the accumulated temperatures get below the set limit. The accumulated Tout symbolises the heat stored in the building.

14 3a Room temperature influence - Line 3 This section is only relevant if you have installed a room sensor. There are two basic principles for control of the room temperature influence: A: Max. room temperature limitation Use this limitation if your heating system is fully equipped with radiator thermostats and you also want to obtain a max. limitation of the room temperature. The controller will allow for free heat gains, i.e. solar radiation or heat from a fire place, etc. B: Reference room control Used if your heating system is not equipped with radiator thermostats and you select the room with room sensor as a temperature reference for the rest of the rooms. (However, should you have a few radiator thermostats installed, make sure that they are fully open). Set a positive value for min. influence and a negative value for max. influence. 3b Basic set-up 3 Room temperature influence I/II / min. 0 max. -40 Go to line _ Influence Min. limitation set Max. limitation T ROOM Basic set-up Min. influence Max. influence Select the max. influence. The bar below the range indicator flashes in the right display. The room sensor in the reference room registers the difference between the desired and the actual room temperature. The flow temperature reference will be corrected to eliminate this difference. Adjust the max. influence. + _ Influence set Max. limitation TROOM The max. influence determines how much the room temperature should influence the flow temperature. Example The actual room temperature is degrees too low. The influence at max. limitation (right corner of the display) is set to 0. The influence at min. limitation(left corner of the display) is set to 0. Heat curve H is.8. Result: The flow temperature reference is changed by x 0 x 0. x H = 7. degrees. The actual room temperature is degrees too high. The influence at max. limitation (right corner of the display) is set to -35. The influence at min. limitation(left corner of the display) is set to 0. Heat curve H is.8. Result: The flow temperature reference is changed by x (-35) x 0. x H = -.6 degrees. Example The actual room temperature is degrees too high. The influence at max. limitation (right corner of the display) is set to -40. The influence at min. limitation (left corner of the display) is set to 0. Heat curve H is.8. Result: The flow temperature reference is changed by x -40 x 0. x H = -4.4 degrees.

15 6a Setting the PI-regulation - Line 4-7 6b 4 Proportional band I/II K 80 K Line indicator Go to line Setting to be adjusted If you want to tune the PI-regulation precisely, you can use the following method: Set the integration time (line 5) to its max. value (999 sec.). Decrease the value for the proportional band (Line 4) until the system starts hunting with a constant amplitude (it might be necessary to force the system by setting an extreme value). Find the critical time period on the temperature recording or use a stop watch. Temp Critical time period Basic set-up Set the proportional band. A higher value will result in a stable, but slow regulation of the flow temperature. 5 Integration time constant I/II sec. 30 sec. This time period will be characteristic for the system, and you can evaluate the settings from this critical period. Time Basic set-up Go to line 5. Integration time = Proportional band = 0.85 x critical time period. x proportional band value in the critical time period. Set a high integration time constant to obtain a slow but stable reaction to deviations. A low integration time constant will make the controller react fast but with less stability. If the regulation seems to be too slow, you can decrease the proportional band value by 0%. Note! Make sure there is a consumption when you set the parameters. 6 Running time of the motorized valve I/II sec. 35 sec. Go to line 6. Set the running time of the motorized valve according to the example on the opposite page. This is the time it takes the valve to move from closed to fully open position. 7 Neutral zone I/II K 3 K Go to line 7. 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 valve. How to calculate the running time of the motorized valve Valve type Valve Actuator Actuator Running stroke type speed time (mm) (sec./mm) (sec.) VS AMV VS 5...5, VM 5...5, AMV(E) VB , VS 5...5, VM 5...5, VB AMV(E) VM 3, VB AMV(E) VM 3, VB AMV(E) 30 3 The running time of the motorized valve is calculated using the following methods: Seated Valves Running time = Valve stroke (mm) x actuator speed (sec./mm) Example: 5.0 mm x 5 sec/mm = 75 sec. Rotating Valves Running time = Turning degrees x actuator speed (sec./degr.) Example: 90 degrees x = 80 sec. Note! The valve is symmetrically around the flow reference value.

16 9a Check list Is the ECL Comfort controller ready for use? Make sure that the power supply is connected to terminals (Live) and (Neutral). See section or 3. Check that valves and pumps are connected to the correct terminals. See section or 3. Check that all sensors are connected to the correct terminals. Mount the controller, and switch on the power. Insert the with the yellow side facing you and push, if necessary. See section 5. Check list 9b Adapting the ECL Comfort controller to the heating system Turn the so that the grey side faces you. Set the time and the date (Line A) See section 7. Check all settings on the grey See sections 0 to 6. Check all settings in the extended service parameters line 0 to 99. If your heating system differs from the diagram shown on the overleaf of the cover, you should check and perhaps alter the following service parameter. Select manual operation in the controller mode. See section in the user s guide. Line 4 Thermo actuator/gear motor circuit I and II Control & overviews Check that valves open and close, and that pumps start and stop when operated manually. See section 9. Check that the temperatures shown in display A and B match the actual sensors, both for circuit I and circuit II. See section in the user s guide. To ensure that you have the correct settings see section 0 for examples of different heating systems. Control & overviews

17 30a settings (circuit I: Heating) settings (circuit II: Heating) 30b A Time and date See sections 6 & 7 A Time and date See sections 6 & 7 B System information See sections 8 & 9 B System information See sections 8 & 9 C Heat curve See section 0 C Heat curve See section 0 Setting range Factory setting Your settings Heat curve - Slope Set the slope of the heat curve, see section 0 Setting range Factory setting Your settings Heat curve - Slope Set the slope of the heat curve, see section 0 Heat curve - Parallel displacement K Set the parallel displacement of the heat curve, see section 0 Heat curve - Parallel displacement K Set the parallel displacement of the heat curve, see section 0 Control & overviews Limit for heating cut-out C 8 C Save energy by stopping the heating system when the outdoor temperature gets above a certain limit, see section. Flow temperature min.-/max. limits C min. 40, max. 90 C The limits for min.- and max. flow temperature, see section. 3 Room temperature influence / min. 0, max. -40 The room temperature s influence on the flow temperature control, see section 3. Limit for heating cut-out C 8 C Save energy by stopping the heating system when the outdoor temperature gets above a certain limit, see section. Flow temperature min.-/max. limits C min. 40, max. 90 C The limits for min. - and max. flow temperature, see section. 3 Room temperature influence / min. 0, max. -40 The room temperature s influence on the flow temperature control, see section 3. Control & overviews 4 Proportional band K 80 K Set the PI-regulation, see section 6. 4 Proportional band K 80 K Set the PI-regulation, see section 6. 5 Integration time constant sec. 30 sec. Set the PI-regulation, see section 6. 5 Integration time constant sec. 30 sec. Set the PI-regulation, see section 6. 6 Motor / valve running time sec. 35 sec. Set the PI-regulation, see section 6. 6 Motor / valve running time sec. 35 sec. Set the PI-regulation, see section 6. 7 Neutral zone K 3 K Set the PI-regulation, see section 6. 7 Neutral zone K 3 K Set the PI-regulation, see section 6.

18 3a Service parameters Service parameters 3b Circuit I (heating) Line Setting range Factory seting Your setting Circuit I (heating) Line Setting range Factory seting Your setting 0 Choice of time control unit Summer time change /OFF Reduced temperature dependent on outdoor temperature OFF/ C -5 C C Boost % 0% % 3 Reference ramping min 0 min min 4 Optimising time constant OFF/ OFF 99 Slave address Circuit II (heating) Line Setting range Factory setting Your setting 0 Choice of time control unit Reduced temperature dependent on outdoor temperature OFF/ C -5 C C Control & overviews 5 Adaptive function of room temperature OFF/ OFF 7 Temperature reference feed back OFF/... 0 OFF 0 Optimisation based on room/ outdoor temperature /OFF OFF Total stop /OFF Pump motion /OFF 3 Valve motion /OFF 4 Gear motor/thermo actuator /OFF OFF OFF 3 Return temperature limitation (X) C +5 C C Boost % 0% % 3 Reference ramping min 0 min min 4 Optimising time constant OFF/ Adaptive function of room temperature OFF/ OFF OFF 0 Optimisation based on room/ outdoor temperature /OFF OFF Total stop /OFF Pump motion /OFF 3 Valve motion /OFF OFF OFF Control & overviews 3 Return temperature limitation (Y) C 40 C C 4 Gear motor/thermo actuator /OFF 33 Return temperature limitation (X) C -5 C C 3 Return temperature limitation (X) C +5 C 34 Return temperature limitation (Y) C 60 C C 3 Return temperature limitation (Y) C 40 C C 35 Return temperature influence - max C - C C 33 Return temperature limitation (X) C -5 C C 36 Return temperature influence - min C 0 C C 34 Return temperature limitation (Y) C 60 C C 37 Adaptive function of return limitation OFF/ Return temperature influence - max C - C C 5 Closed valve/pi-regulation /OFF OFF 36 Return temperature influence - min C 0 C C 4 Override input selection OFF/... 6 OFF 37 Adaptive function of return limitation OFF/ C 74 Motor protection OFF/ min OFF 5 Closed valve/pi-regulation /OFF OFF 96 Service pin - L /OFF OFF 4 Override input selection OFF/... 6 OFF 97 L reset /OFF 74 Motor protection OFF/ min OFF

19 3a Adjusting the service parameters Service parameters 0-3b In addition to the settings in line to 7 on the grey, there is an extended service menu from line 0 and onwards. Push repeatedly to reach the lines numbered 0 and onwards. 0 Choice of time control unit I/II Dedicates the unit for the time control of the comfort and reduced temperature periods Select between Line number 0 0 Value Range indicator 0 ECL Comfort controller - day plan for circuit Room panel ECA 60 or remote control ECA 6 on address A Room panel ECA 60 or remote control ECA 6 on address B Now you can move to any line of your choice. Set the parameter value. You can select any of the two circuits no matter what line you are in. You will not necessarily enter the same line number. See the service parameters in section 3. When you have entered all your personal settings, turn the over so that the yellow side faces you. If you want to copy the new settings to the (recommended by Danfoss), see section 34. Make a note of your new settings on the parameter list in section 3. Reduced temperature dependent on outdoor temperature I/II OFF / C -5 C Limit of the outdoor temperature at which the reduced temperature setting is switched off. -9 to +0 C The setting of reduced temperature depends on the outdoor temperature, when the outdoor temperature is above the set limit. The lower the outdoor temperature the less the temperature reduction. When the outdoor temperature is below the set limit, there is no temperature reduction. Reduction 00% Extended service 0% OFF: Outdoor temp. o C The reduced temperature setting will be constant at all outdoor temperatures. Extended service

20 3c Service parameters -3 Service parameters 4-5 3d Boost I/II % 0% Shortens the heating-up period by increasing the flow temperature by the percentage you set. In order to shorten the heating-up period after a reduced temperature period, the flow temperature can be increased temporarily. If a room sensor is installed, the boost stops when the optimising period is over or the room temperature has been reached. T ref C Set the percentage at which you want the flow temperature to be changed temporarily. 3 Reference ramping I/II min 0 The time in which the flow temperature increases slowly to avoid load peaks in the supply. Set the opening time you want the valve to use. 4 Optimising time constant I/II OFF / OFF Optimises the start and stop times for the reduced temperature period to obtain the best comfort at the lowest energy consumption. Adjust the optimising time constant. The value consists of a number of two digits. You can select the following values:,, The two digits have the following meaning:. digit (system type and heat accumulation of the building). digit Heat accumulation System type of the building light medium heavy medium heavy Radiator system Floor heating system. digit (capacity of the heating system). digit Dimensioning Capacity temperature 0-50 C large C normal C small T ref Extended service Setting line 3 Time In order to avoid load peaks in the supply network, the flow temperature reference can be set to increase slowly after a period with reduced temperature. This causes the valve to open slowly. OFF: 4 5 No optimisation. The heating starts and stops at the times set in the week plan. Dimensioning temperature: The lowest outdoor temperature at which the heating system can secure the desired temperature. 5 Adaptive function of room temperature I/II OFF / OFF Controls how fast the room temperature adapts to the desired temperature. Extended service OFF: The adaptive function is cancelled. : The desired temperature is adapted quickly. 30: The desired temperature is adapted slowly. The adaptive function will eliminate the difference between the required and the actual room temperature by integrating the difference and adjusting the reference for the flow temperature.

21 3e Service parameters 7-0 Service parameter 3f 7 Temperature reference feedback I OFF /... 0 OFF The temperature reference in heating circuit I can be influenced by another external. The set number determines the influence of the flow temperature reference in circuit I or the reference signal by any other connected controller. Total stop I/II / OFF OFF Decide whether you want a total stop during reduced temperature period. Select total stop function. OFF: The temperature reference in circuit I is not influenced by any other controller. -0: The temperature reference in circuit I will always at least correspond with the value of the set number + the highest temperature reference degree of an external controller. : Total stop function is. At total stop the flow temperature reference is lowered to 0 C, and the minimum setting of the flow temperature limit of line (see section ) is overruled in the reduced temperature period. C Setting line 7 Ref. temp. T REF T ref (l) T MIN T ref (ll) 0 o C Time Time This function is used if circuit I is the main supply for other mixing circuits. OFF: No total stop 0 Optimisation based on room/outdoor temperature I/II / OFF OFF The optimised start and stop time calculation can be based on either the room temperature or on the outdoor temperature. T REF Ref. temp. T MIN Extended service Select calculation method: : OFF: Calculation based on room temperature (only if a room sensor is used). Calculation based on outdoor temperature. Use this setting if you have no room sensor. 0 o C Time Extended service

22 3g Service parameters -4 Pump motion I/II / OFF Exercises the pump to avoid blocking in periods without heat demand. Set the anti-blocking function to or OFF. : OFF: The pump is switched on for minute every third day. The pump motion is switched off. 3 Valve motion I/II / OFF OFF Exercises the valve to avoid blocking in periods without heat demand. Set the anti-blocking function to or OFF. : OFF: The valve motion is switched on. The valve receives a signal to open and close every third day. The valve motion is switched off. In district heating systems you have to switch off the valve motion to avoid unnecessary heat consumption. Extended service 4 Gear motor / thermo actuator I/II / OFF Choose the actuator type. Select actuator type: : OFF: Gear motor Thermo actuator Extended service

23 3h Service parameters 3-3 Service parameters i 3 Return temperature limitation - upper limit (X) I/II C +5 C Set the return temperature limitation - upper limit X-axis. 33 Return temperature limitation - lower limit (X) I/II C -5 C Set the return temperature limitation - lower limit X-axis. Set the value for the upper limit (X-coordinate) of the outdoor temperature. (The corresponding Y-coordinate is set in line 3). Set the value for the lower limit (X-coordinate) of the outdoor temperature. Line 34 T return Lower limit Upper limit 34 Return temperature limitation - lower limit (Y) I/II C 60 C Set the return temperature limitation - lower limit Y-axis. Line 3 Set the acceptable value of the return temperature which corresponds to the lower limit setting in line 33. Line 33 Line 3 T out The return temperature limitation is based on the outdoor temperature. When the outdoor temperature drops, a higher return temperature can be set. The relationship between the return temperature limits and outdoor temperature is set in two points. The upper limit point is set in line 3 and 3 and the lower limit point in line 33 and Return temperature limitation - upper limit (Y) I/II C 40 C Set the return temperature limitation - upper limit Y-axis. Extended service Set the acceptable return temperature value which corresponds to the upper limit setting in line 3. Extended service

24 3j Service parameter 35 Service parameter 36 3k 35 Return temperature influence - max. limitation I/II How much the flow temperature reference should be influenced 36 Return temperature influence - min. limitation I/II How much the flow temperature should be influenced. Set the influence of the max. return temperature limitation. If the displayed value does not equal 0, the function prevents the return temperature from getting above the settings in lines Influence higher than 0: The reference for the flow temperature is increased, when the return temperature gets above the settings in lines Influence lower than 0: The reference for the flow temperature is decreased, when the return temperature gets above the setting in lines Set the influence of the min. return temperature limitation. If the displayed value does not equal 0, the function prevents the return temperature from falling below the limit set in line 30. Influence higher than 0: The reference for the flow temperature is increased, when the return temperature gets below the setting in line 30. Influence lower than 0: The reference for the flow temperature is decreased, when the return temperature gets below the setting in line 30. Influence + Min. limitation > 0 Influence + 0 Return limit Max. limitation > 0 Return temp. 0 Return limit _ Min. limitation < 0 Return temp. _ Max. limitation < 0 Example The return limit is set to 50 degrees. The influence is set to -. The actual return temperature is degrees too high. Result: The flow temperature is lowered by x- = -4 degrees. Example Return limit is set to 50 degrees. Influence is set to Actual return temperature is degrees too low. Result: The flow temperature reference is increased with x = 4 degrees. Extended service Normally, the value set in line 35 is lower than 0 in district heating systems and equals 0 in boiler systems. Normally, the setting in line 36 is 0 in district heating systems and lower than 0 in boiler systems. With a normal return limitation you have to set a 0 in either line 35 or 36. Extended service

25 3l Service parameters 37-5 Service parameter 4 3m 37 Adaptive function of return limitation I/II OFF / Controls how fast the return temperature adapts to the desired temperature. Select circuit. Adjust the adaptive function of the return limitation. The setting will eliminate the difference between required and actual return temperature by integrating the difference and adjusting the reference for the flow temperature. In circuit I the settings mean: OFF: The heating curve will not be adjusted. : The heating curve will be adjusted quickly. 50: The heating curve will be adjusted slowly. 4 Override input selection I/II OFF/... 6 OFF/OFF Choose a free sensor input for the override of circuit I and/or circuit II. Each circuit can be overridden independently of each other. Choose circuit I or II. OFF: The controller is not overridden.... 6: Select a free sensor input S... S6 for the override of the circuit in question. Connection example without ECA 900 In circuit II the settings mean: OFF: The charging temperature reference will not be adjusted. : The charging temperature will be adjusted quickly. 50: The charging temperature will be adjusted slowly. 5 Closed valve/pi-regulation I/II /OFF OFF The heating circuit can be closed, when the controller functions as a slave controller. Closed switch: Reduced temperature Closed switch: Comfort temperature Extended service Note! Line 5 is set if this controller is a slave. : OFF: The valve in the heating circuit is closed during hot water service demand from a master controller. The flow temperature control remains unchanged during a hot water service demand from a master controller. Changeover switch: Reduced or comfort temperature Connection example with ECA 900 Extended service and closed: and 3 closed: Reduced temperature Comfort temperature Note: To avoid contact resistance, the use of the override module ECA 900 is recommended. For an active override, you have to choose the mode automatic operation!

26 3n Service parameters Service parameters o 74 Motor protection I/II OFF/ min. OFF Prevents the acutator from hunting when the load in the heating circuit is very low. This stabilization increases the lifetime of the involved components. Set the motor protection function to be on or off: OFF: Motor protection is turned off : Motor protection is turned on. When a load change occurs, motor protection is automatically disabled and will be reactivated when hunting is detected again. The disabling period can be set to 0-59 minutes. A high value should be used for installations with many consumers and vice versa. 96 Service pin - L I /OFF OFF This setting is only used in connection with communication (see the documentation for the used communication unit). 97 L reset I /OFF This setting is only used in connection with communication (see the documentation for the used communication unit). 98 Summer time change I /OFF Choose whether you want the change to summer-/winter time to be automatic or manual. Set the time-change function to be on or off: : OFF: The controller s built-in clock automatically changes +/- one hour on the standardized days for summer time changeover for Central Europe. You change manually between summer and winter time by turning the clock one hour backward or forward. 99 Slave address I The settings are relevant when more controllers are working in the same system. Assign addresses to the slaves: 0: The slave receives information about the outdoor temperature and the system time. - 9: The slave receives information about the outdoor temperature, the system time and control parameters. The slave sends the reference temperature to the master. Extended service 5: The controller is master. The master only sends information about the outdoor temperature and the system time. The master receives reference temperature values from slaves with addresses -9. Cannot be set. The ECL Comfort controllers can be interconnected via the ECL Comfort Bus to perform a larger system. One outdoor sensor can send the same information to all of them. The controller, which is physically connected with the outdoor sensor, is the master of the entire system and gets automatically the address 5. The other controllers in the system can be addressed with a slave number and receive information from the outdoor sensor through the master. Only one address for one slave. Extended service

27 34a Copying with the Store new settings on the All settings, adjustments, etc. can be stored on the ECL Card. Insert the with the yellow side facing you. Go to line 9 (bottom line). 34b Copy to or from? The controller enables you either to copy settings from the to the controller or from the controller to the. The display will show the symbols of the ECL Card (to the left) and the controller (to the right). 0 CPY C99 0 CPY C99 The bar beneath the copy direction line builds up in the copying direction while the copying is in progress. Accept to copy settings from controller to ECL Card. When the copying is finished, display line C will appear. Make sure that you update your adjustments and settings. Copy settings to an additional controller Make sure the other controller uses the same card type. Change copy direction. Accept to copy. Check the type of system(s) and the software generation Insert the with the yellow side facing you. Go to line 9. Go to line 9 (bottom line). Select the copying direction. Copy. Change to a different heating system Purchase an for a different type of heating system. Use this function if you modify or extend the heating system. Accept to copy. After copying the display will show the controller s software generation and the type of system which has been loaded. Line 8 will always show the type of system selected and the software generation. Miscellaneous Miscellaneous The yellow

28 7a Definitions 7b Actual flow temperature Temperature measured in the flow at any time. Comfort period A period of the day where comfort temperature is selected. Comfort temperature Temperature maintained in the heating or hot water circuits during comfort periods. Normally during daytime. Controller mode indicator Black arrow to the right of the symbols indicating the present mode selected. Day plan Schedule for different periods with comfort and reduced temperatures. The day plan can be made individually for each day and may consist of up to 3 comfort periods per day. Desired temperature Temperature which is set as the desired room temperature. The temperature can be controlled only if a room sensor is installed. If no sensor is installed, the desired temperature is only an expression for a possible obtainable room temperature, meaning that the room temperature is controlled by radiator thermostats/valves. Factory settings Settings stored on the to simplify the set up of your controller the first time. Flow temperature reference Temperature calculated by the controller on basis of the outdoor temperature and influences from the room- and/or return sensors. This temperature is used as a set point for the control. Reduced temperature Temperature maintained in the heating/hot water circuit during setback periods. Return temperature Temperature measured in the return pipe. Room sensor Temperature sensor placed in the room where the temperature is to be controlled. The sensor is based on the Pt 000 Ohm type. Room temperature Temperature measured by the room sensor. The room temperature can be controlled only when a sensor is installed. State indicator White arrow to the left of the symbols in the controller mode. The white arrow indicates the present state (comfort or reduced temperature period) when the controller is in automatic mode (the clock symbol). Time bar Bars representing periods with comfort temperature. The bar is divided in half hour sections. Time line Bar with numbers representing the hours in the lower part of the display. Weather compensation Facility enabling the controller to take outdoor weather conditions into consideration for heat control. Weather compensation is based on a user-defined heat curve which determines the flow temperature at varying outdoor temperatures. Function selector Facility making it possible to override the mode of the controller. Each circuit can be overriddden individually. Heating circuit The circuit for heating the room/building. Optimising system Changeover time between two programmed temperature periods. The controller automatically controls the flow temperature in order to reach the comfort temperature at the set time. Pt 000 Ohm sensor All sensors used with the ECL Comfort controller are based on the Pt000 Ohm type. The resistance is 000 Ohm at 0 degrees and it changes with 3.9 degrees.

29 6 Hot points The time shown in the display is one hour off? If the time shown is one hour off, the automatic summer time changeover may work incorrectly. Set the summer time change in line 98 to off. See Extended Service in the Installer s Guide. 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 hours. Set time and date. See section 7 in the Installer s Guide. The is lost? Switch the power off and on again to see the heating system type and the software generation of the controller. Order a replacement from your Danfoss dealer. Insert the new with the yellow side facing you and make sure that you copy your personal settings from the controller to the. See section 34 in the Installer s Guide. The room temperature is too low? If you have radiator thermostats in the same room as the room sensor, please check that the radiator thermostats are set to the highest value. If this does not increase the room temperature, the flow temperature might be too low. Increase the desired temperature by setting a higher value for the desired room temperature or the heat curve. See section in the User s Guide. The temperature is unstable? Check that the flow temperature sensor is correctly mounted and in the right place. Adjust the control parameters. See section 3 in the Installer s Guide. How to make an extra comfort period? You can make an additional comfort period by pushing the shift and + buttons simultaneously. See section 4 of the User s Guide. How to remove a comfort period? You can remove a comfort period by pushing the shift and - buttons simultaneously, and hold for two seconds. See section 4 of the User s Guide. How to restore your personal settings? Insert the with the yellow side facing you. Go to line 9 and select card to controller direction of copying (left to right) using the Shift button. Push + button to copy. See section 5 of the User s Guide.