Carel uChiller UCHBP00000200

5
ENG
µchiller +0300053EN rel. 2.2 - 14.12.2021
Index
1. Introduction ............................................................... 7
1.1 Main functions ....................................................................................................7
1.2 Models ....................................................................................................................8
1.3 Accessories ...........................................................................................................8
2. Installation ............................................................... 12
2.1 Warnings ............................................................................................................. 12
2.2 Panel version .....................................................................................................12
2.3 DIN rail version ................................................................................................ 13
2.4 Electrical installation ....................................................................................13
2.5 Probe/digital input connection ............................................................ 14
2.6 Connection to user terminals ................................................................ 15
2.7 Positioning inside the panel ................................................................... 16
2.8 Electrical installation ...................................................................................17
2.9 Connecting serial ports with two circuits ...................................... 17
2.10 Connection to Power+ (for BLDC) ...................................................... 18
2.11 Positioning of probes/ components ................................................. 19
2.12 Input/output confi guration .................................................................... 19
2.13 Functional diagrams ....................................................................................22
3. Initial con guration ................................................ 36
3.1 APPLICA app ..................................................................................................... 36
3.2 Confi guration procedure ..........................................................................36
3.3 Unit set-up parameter list ......................................................................... 40
3.4 Applica Desktop ............................................................................................. 42
3.5 Confi guration procedure with Applica Desktop - Legacy
Model ............................................................................................................................... 43
4. User interface ........................................................... 46
4.1 Introduction ...................................................................................................... 46
4.2 User terminal ....................................................................................................46
4.3 Standard display ............................................................................................. 47
5. Functions .................................................................. 51
5.1 Temperature control ....................................................................................51
5.2 User pumps ....................................................................................................... 53
5.3 Frost protection control ............................................................................. 55
5.4 Compressor rotation .................................................................................... 58
5.5 Compressor management ....................................................................... 60
5.6 BLDC compressor protectors ................................................................. 62
5.7 BLDC comp. alarm prevention .............................................................. 63
5.8 Compressor alarms ....................................................................................... 65
5.9 Power+ Speed drive ..................................................................................... 65
5.10 Expansion valve driver ................................................................................ 66
5.11 Control of the expansion valve ............................................................. 66
5.12 Source pump .................................................................................................... 66
5.13 Source fans .......................................................................................................67
5.14 Free cooling ....................................................................................................... 70
5.15 Types of free cooling ................................................................................... 70
5.16 Free cooling ....................................................................................................... 73
5.17 Defrost .................................................................................................................. 74
5.18 4-way valve management........................................................................ 78
5.19 Manual device management ................................................................. 78
5.20 Air/air unit management (Legacy model only) .......................... 79
5.21 Automatic heater management for water units (Legacy mo-
del only) .......................................................................................................................... 80
5.22 Condensing unit management ............................................................ 81
5.23 Automatic changeover (Legacy model only) .............................. 81
6. Parameter table ....................................................... 83
6.1 System .................................................................................................................. 83
6.2 Compressor ....................................................................................................... 84
6.3 BLDC and Inverter ......................................................................................... 85
6.4 Valve .......................................................................................................................86
6.5 Source ...................................................................................................................86
6.6 Input/output confi guration .................................................................... 88
6.7 mCH2 parameters (Legacy models only) ....................................... 88
6.8 BMS port .............................................................................................................. 89
6.9 Password ............................................................................................................. 89
6.10 Dashboard values .......................................................................................... 89
6.11 Settings ................................................................................................................90
7. Supervisor table ...................................................... 91
7.1 Coil Status ........................................................................................................... 91
7.2 Input Status .......................................................................................................92
7.3 Holding Register ............................................................................................. 93
7.4 Input Register ................................................................................................... 97
8. Alarms and signals .................................................. 99
8.1 Types of alarms ................................................................................................ 99
8.2 Alarm list ........................................................................................................... 100
9. Technical speci cations .......................................102
9.1 Connector/cable table ............................................................................ 104
10. Release notes .........................................................104
Index