1 SUMMARY
1 Summary................................................................................................................................................................... 2
2 How to use this manual ........................................................................................................................................ 5
3 Introduction ............................................................................................................................................................. 6
3.1 Models available............................................................................................................................................................................... 6
4 Installation ............................................................................................................................................................... 8
4.1 Connection diagrams ...................................................................................................................................................................... 8
4.2 Configuration of analogue inputs ................................................................................................................................................ 9
4.3 Configuration of digital inputs.................................................................................................................................................... 10
4.4 Configuration of outputs.............................................................................................................................................................. 10
4.4.1 Relays................................................................................................................................................................................................................................................... 11
4.4.2 Triac ..................................................................................................................................................................................................................................................... 11
4.4.3 Alarm................................................................................................................................................................................................................................................... 12
4.4.4 Fan module pilot output ................................................................................................................................................................................................................ 12
4.4.5 Optional output................................................................................................................................................................................................................................ 12
4.4.6 Remote keyboard output ............................................................................................................................................................................................................... 12
4.5 Physical quantities and units of measurement........................................................................................................................ 13
4.5.1 Temperature- or pressure-based operation............................................................................................................................................................................... 13
4.5.2 Units of measurement..................................................................................................................................................................................................................... 13
4.6 Serial outputs .................................................................................................................................................................................. 14
4.6.1 Copy card device............................................................................................................................................................................................................................... 14
5 User interface......................................................................................................................................................... 15
5.1 Keys.................................................................................................................................................................................................... 15
5.2 Displays.............................................................................................................................................................................................15
5.2.1 Display................................................................................................................................................................................................................................................. 15
5.2.2 SET display for air-air machines (for models Ech 2xxB only) ................................................................................................................................................ 15
5.2.3 Led ........................................................................................................................................................................................................................................................ 16
5.3 Remote keyboard............................................................................................................................................................................ 16
5.4 Parameter programming – Menu levels ................................................................................................................................... 18
5.4.1 Visibility of parameters and sub-menus ..................................................................................................................................................................................... 20
6 System configuration........................................................................................................................................... 21
6.1 Compressors..................................................................................................................................................................................... 21
6.1.1 Compressor configuration.............................................................................................................................................................................................................. 21
6.1.2 Compressor on/off sequence ......................................................................................................................................................................................................... 21
6.1.3 Compressor timing........................................................................................................................................................................................................................... 21
6.2 Condensation fan ........................................................................................................................................................................... 22
6.2.1 Fan configuration............................................................................................................................................................................................................................. 22
6.2.2 DRV module....................................................................................................................................................................................................................................... 23
6.3 Reversing valve................................................................................................................................................................................23
6.4 Hydraulic pump .............................................................................................................................................................................. 23
6.5 Internal anti-freeze/supplementary electrical heaters ..........................................................................................................24
6.5.1 Supplementary electrical heaters................................................................................................................................................................................................. 25
6.6 External anti-freeze electrical heaters ....................................................................................................................................... 25
6.7 Boiler ................................................................................................................................................................................................. 25
7 Adaptive .................................................................................................................................................................. 26
7.1 Adaptive function........................................................................................................................................................................... 26
7.1.1 Adaptive function: regulator ......................................................................................................................................................................................................... 26
7.1.2 Set point offset (for ET<MT) .......................................................................................................................................................................................................... 26
7.1.3 Set point regression (for ET≥MT) ................................................................................................................................................................................................ 27
7.1.4 Protection in Cooling mode........................................................................................................................................................................................................... 28
7.1.5 Protection in Heating mode .......................................................................................................................................................................................................... 28
7.1.6 Notes.................................................................................................................................................................................................................................................... 28
7.1.7 Example .............................................................................................................................................................................................................................................. 28
7.2 Fan control in Defrosting mode .................................................................................................................................................. 29
7.3 Antifreeze function for units with heat pump.......................................................................................................................... 29
8 Temperature control functions ......................................................................................................................... 30
8.1 Selection of operating mode from analogue input................................................................................................................ 30
8.2 Setting set points ............................................................................................................................................................................ 31
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