Evco c-pro 3 micro CHIL Series - Page 4

EVCO S.p.A. c-pro 3 micro CHIL | Application manual ver. 1.0 | Codice 144CP3CHE104
page 4 of 120
8.3 Configuration of Circuits ................................................................................. 53
8.4 Operating Mode Control .................................................................................. 54
8.5 Setting the RTC .............................................................................................. 55
8.6 Compressor Control ........................................................................................ 56
8.6.1 Lateral-band (LB) control ...................................................................................................................... 56
8.6.2 Zero energy band (ZEB) control ............................................................................................................ 57
8.6.3 Auto adaptive control ........................................................................................................................... 58
8.7 Compressor Management ............................................................................... 58
8.7.1 Compressor status ................................................................................................................................ 58
8.7.2 Rotation of compressors ....................................................................................................................... 58
8.7.3 Pump-down switch-OFF procedure ....................................................................................................... 59
8.7.4 Relative-threshold pump-down ............................................................................................................. 59
8.7.5 Protection timings ................................................................................................................................. 60
8.7.6 Thermal protection inputs ..................................................................................................................... 61
8.8 Condenser control .......................................................................................... 61
8.8.1 Modulating fan control .......................................................................................................................... 61
8.8.2 Single stage fan control ........................................................................................................................ 64
8.8.3 Condenser valve control ........................................................................................................................ 64
8.8.4 Single condenser ................................................................................................................................... 64
8.9 Fan Management ............................................................................................ 65
8.9.1 Fan status ............................................................................................................................................. 65
8.9.2 Fan timings ........................................................................................................................................... 65
8.9.3 Thermal Protection Inputs .................................................................................................................... 65
8.10 Circulating Pump Management .................................................................... 66
8.10.1 Pump Status .......................................................................................................................................... 67
8.10.2 Flow Meter Management ....................................................................................................................... 67
8.11 Circulating Source Pump Management ........................................................ 68
8.12 Defrosting Management .............................................................................. 68
8.12.1 Defrosting cycle compensation ............................................................................................................. 69
8.13 Anti-freeze management / Chilling-support heating coils ........................... 69
8.14 Single evaporation ...................................................................................... 69
8.15 Free-Cooling Management........................................................................... 70
8.15.1 Enabling of Free-Cooling ....................................................................................................................... 70
8.15.2 Regulation of Free-Cooling .................................................................................................................... 70
8.15.3 Free-Cooling control valve .................................................................................................................... 72
8.16 Temperature Alarm Control ......................................................................... 73
8.16.1 Low and high temperature alarm management ..................................................................................... 73
8.16.2 Management of primary exchanger efficiency alarm ............................................................................. 73
8.17 Pressure Alarm Control ............................................................................... 73
8.17.1 Management of high-pressure pressure-switch alarm .......................................................................... 73
8.17.2 Management of high-pressure transducer alarm ................................................................................... 73
8.17.3 Management of low-pressure pressure-switch alarm (chiller mode) .................................................... 73
8.17.4 Management of low-pressure transducer alarm (heat pump mode) ...................................................... 74
8.17.5 Low start-up pressure alarm ................................................................................................................. 74
8.18 Time schedule ............................................................................................. 75
8.19 Miscellaneous Management ......................................................................... 76
8.19.1 Set point variation by schedule timer .................................................................................................... 76
8.19.2 Dynamic set point ................................................................................................................................. 76