User manual DANFOSS RX3

[. . . ] Only sections relevant to your ECL Comfort controller are included here. Before you start Installation 10 11 12 14 15 Identifying the system type Mounting the ECL Comfort controller Electrical connections 230 V a. c. Connecting and placing the temperature sensors Inserting the ECL Card Basic Set-up 16 17 18 19 20 21 22 23 26 Adjusting the ECL Card settings Setting the time and date - line A Monitoring temperatures and system units - line B Manual control - line B Setting the heat curve - line C Heating cut-out - line 1 Flow temperature limits - line 2 Room temperature influence - line 3 Control parameters - lines 4-7 Control & Overviews 29 30 31 Check list ECL Card settings Service parameters Extended Service 32 Adjusting the service parameters Miscellaneous 34 Copying with the ECL Card User's Guide (turn the guide over for sections 1-7) 1 2 3 4 5 6 7 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 Before you start 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 in section 10, you may want to make a sketch of the system about to be installed. [. . . ] 9. 9 0. 0 Control & overviews 37 Time constant for return temperature limitation OFF / 1 . . . 6 °C OFF 15 °C 40 °C °C -15 °C °C 60 °C °C -2. 0 0. 0 37 Time constant for return temperature limitation OFF / 1 . . . 99 K OFF 52 Closed valve / normal operation ON / OFF 141 Override input selection OFF / 1 . . . 6 OFF OFF K 32 Adjusting the service parameters Service parameter(s) 10-11 10 Choice of room panel / remote control Circuit Setting range 32a Factory setting In addition to the settings in line 1 to 7 on the grey side of the ECL Card, there is an extended service menu from line 10 and onwards. Push repeatedly to reach the lines numbered 10 and onwards. I 0 . . . Please note that the room panel / remote control is only active if the system device bus is active. The bus is active when the outdoor temperature sensor is connected. 0 Line Value 10 Range indicator Now you can move to any line of your choice. Choose between 0: Room temperature sensor (no room panel / remote control) 1: Room panel ECA 60 / 62 or remote control ECA 61 / 63 with address A 2: Room panel ECA 60 / 62 or remote control ECA 61 / 63 with address B 3 . . . You can select any of the two circuits no matter what line you are in. See the service parameters in section 31. The room panel / remote control has no influence on the DHW control. 11 Setback temperature dependent on outdoor temperature Circuit Setting range Factory setting I OFF / -29 . . . 10 °C -15 °C Below this outdoor temperature, the setback temperature setting has no influence. Check that you have entered all the required settings in circuit I - and circuit II, if available. If you want to copy the new settings to the ECL Card (recommended by Danfoss), see section 34. setting of the flow temperature (line 2, section 22) is overruled. Desired flow temp. (°C) Tflow. ref(I) 10 °C Tflow. ref(II) Time Time OFF: No total stop Desired flow temp. (°C) Example: If a slave controller (or circuit II) demands a higher temperature than that of the master controller (Tflow. ref(I)), the temperature of the master will be increased accordingly (Tflow. ref(II)) + the setting (line 17). The function of line 17 can compensate for heat losses between master and slave controlled systems. 10 °C Extended service Extended service 20 Optimization based on room / outdoor temperature Circuit Setting range Factory setting I ON / OFF OFF The optimized start and stop time can be based on either room or outdoor temperature. Time ON: Optimization based on room temperature, if measured. OFF: Optimization based on outdoor temperature. Use this setting if the room temperature is not measured. The grey side of the ECL Card The grey side of the ECL Card 32f Circuit Service parameter(s) 22-24 Service parameter(s) 30-34 30 Return temperature limitation 32g Factory setting 22 Pump exercise Setting range Factory setting I ON / OFF ON Exercises the pump to avoid blocking in periods without heat demand. Circuit Setting range II 10 . . . 110 °C 50 °C Set the return temperature you accept for the heating / DHW circuit. ON: The pump is switched ON for 1 minute every third day around noon. Set the acceptable return temperature limit. When the return temperature falls below or gets higher than the set value, the controller automatically changes the desired flow temperature to obtain an acceptable return temperature. The influence is set in lines 35 and 36. OFF: The pump exercise is not active. 23 Valve exercise Circuit Setting range Factory setting I ON / OFF OFF Exercises the valve to avoid blocking in periods without heat demand. For some applications the return temperature limitation for heating circuits is set in lines 31-34 (outdoor temperature dependent limitation). ON: The valve receives a signal to open and close every third day around noon. 31-34 Return temperature limitation OFF: The valve exercise is not active. 24 Gear motor / thermo actuator Circuit I Setting range ON / OFF Factory setting ON Choose the actuator type for your valve. The return temperature limitation is based on the outdoor temperature. Typically in district heating systems a higher return temperature is accepted at a decrease in outdoor temperature. The relationship between the return temperature limits and outdoor temperature is set in two coordinates. The upper limit coordinate is set in lines 31 and 32 and the lower limit coordinate in lines 33 and 34. Treturn ON: Gear motor OFF: Thermo actuator (ABV type) 80 Control parameters (lines 4-7) are overruled if thermo actuator is chosen (OFF). Line 34 60 Line 32 40 Lower limit Upper limit Extended service Extended service 20 Tout -15 Line 33 0 +15 Line 31 The grey side of the ECL Card The grey side of the ECL Card 32h Circuit I Service parameter(s) 31-34 Service parameter(s) 35 35 Return temperature influence - max. limitation Circuit Setting range 32i Factory setting 31 Return temperature limitation - upper limit (X-axis) Setting range -60 . . . [. . . ] The mode can be set differently for each circuit by means of the function selector. However, if manual operation (hand) is chosen, this mode will apply to all circuits. Function selector (black arrow) State indicator (white arrow) Circuit I: Setting the desired room temperature 20 20 Desired room temp. The black arrow shows you which of the modes you have chosen. What do the symbols mean? Manual operation Used only at maintenance and service. The protection against frost is switched off when this mode is selected. [. . . ]