Installation GuideECL Comfort 210 / 310, application A231 / A3311.0 Table of Contents1.0 Table of Contents............................................... 11.1 Important safety and product information..................... 22.0 Installation........................................................ 42.1 Before you start ..................................................... 42.2 Identifying the system type...................................... 122.3 Mounting ........................................................... 142.4 Placing the temperature sensors................................ 172.5 Electrical connections............................................. 192.6 Inserting the ECL Application Key .............................. 342.7 Check list............................................................ 392.8 Navigation, ECL Application Key A231 / A331 ................ 403.0 Daily use ......................................................... 463.1 How to navigate ................................................... 463.2 Understanding the controller display.......................... 473.3 What do the symbols mean?..................................... 493.4 Monitoring temperatures and systemcomponents........................................................ 503.5 Manual control..................................................... 513.6 Schedule ............................................................ 524.0 Settings overview ............................................ 535.0 Settings, circuit 1 ............................................. 555.1 Flow temperature.................................................. 555.2 Return limit ......................................................... 605.3 Flow / power limit ................................................. 635.4 Optimization........................................................ 665.5 Control parameters................................................ 705.6 Pump control....................................................... 725.7 Refill water.......................................................... 745.8 Application ......................................................... 785.9 Alarm ................................................................ 826.0 Common controller settings.............................. 856.1 Introduction to ‘Common controller settings’ ................ 856.2 Time & Date......................................................... 866.3 Holiday .............................................................. 876.4 Input overview..................................................... 896.5 Log ................................................................... 906.6 Output override.................................................... 916.7 Key functions....................................................... 926.8 System............................................................... 937.0 Miscellaneous.................................................. 957.1 Frequently asked questions...................................... 957.2 Definitions .......................................................... 97Danfoss District Energy VI.LG.P1.02 DEN-SMT/DK 1