
1 - IMPORTANT RECOMMENDATIONS............................................................................................................................................5
1.1 - Electrical power supply..............................................................................................................................................................5
1.2 - Board controller specications ................................................................................................................................................5
1.3 - Warning .....................................................................................................................................................................................5
1.4 - Earthing.....................................................................................................................................................................................5
1.5 - Connection of sensors...............................................................................................................................................................5
1.6 - Connection of communication buses and of the remote console..............................................................................................5
1.7 -
Connection of on/off inputs .................................................................................................................................................................... 5
2 - GENERAL .....................................................................................................................................................................................6
3 - COMPOSITION .............................................................................................................................................................................7
3.1 - Main control board for machines with one non-reversible refrigerating circuit ..........................................................................7
3.2 - Additional board 1......................................................................................................................................................................8
3.3 - Additional board 2......................................................................................................................................................................8
3.4 - Control and display console ....................................................................................................................................................10
3.5 - Connection via RS485 serial port for CMS or control console and Multi controller unit.......................................................... 11
3.6 - Relay boards .......................................................................................................................................................................... 11
4 - DESCRIPTION ............................................................................................................................................................................12
4.1 - Main board ............................................................................................................................................................................12
4.2 - Expansion (additional) boards 1 and 2 ...................................................................................................................................12
4.3 - Man-Machine Communication.................................................................................................................................................12
5 - ACCESS LEVELS .......................................................................................................................................................................13
5.1 - Selecting an authorised access level ......................................................................................................................................13
5.2 - Accessing the various access levels .....................................................................................................................................13
5.3 - Conguring access levels on the controller.............................................................................................................................14
5.4 - Management of the numeric codes for accessing levels 2 and 3 ..........................................................................................14
5.5 - Classication of the menus and their functions.......................................................................................................................15
6 - LIST OF PARAMETERS..............................................................................................................................................................16
7 - MANAGEMENT OF THE DRYCOOLER CONTROLLER PARAMETERS ................................................................................. 25
8 - CONTENTS OF THE MENUS .....................................................................................................................................................26
8.1 - MAIN menu .............................................................................................................................................................................26
8.2 - SETPOINTS menu..................................................................................................................................................................26
8.3 - MACHINE STATUS menu .......................................................................................................................................................26
8.4 - Measured values menu...........................................................................................................................................................31
8.5 - MACHINE PARAMETERS menu ............................................................................................................................................32
8.6 - ADJUSTMENT PARAMETERS menu ....................................................................................................................................36
8.7 - OPERATION PARAMETERS menu........................................................................................................................................44
8.8 - FAULT MEMORY menu ..........................................................................................................................................................54
8.9 - TEST MODE menu .................................................................................................................................................................55
8.10 - HP test per circuit (from version V27) ...................................................................................................................................55
9 - MANAGEMENT OF THE ON/OFF INPUTS ................................................................................................................................ 57
9.1 - Automatic machine operation control ......................................................................................................................................57
9.2 - Load shedding control.............................................................................................................................................................57
9.3 - Water ow switch ....................................................................................................................................................................57
9.4 - Fan fault (circuits 1 and 2).......................................................................................................................................................58
9.5 - Expansion valve fault ..............................................................................................................................................................59
9.6 - Phase controller fault...............................................................................................................................................................60
9.7 - Pump fault ...............................................................................................................................................................................60
9.8 - Compressor protection............................................................................................................................................................61
9.9 - Manual HP pressure switch fault on circuit 1 or 2 ...................................................................................................................61
9.10 - Setpoint selection via on/off input..........................................................................................................................................62
9.11 - Variable setpoint via 4 20 mA input .......................................................................................................................................62
9.12 - Operating mode selection .....................................................................................................................................................63
10 - MANAGEMENT OF THE ANALOGUE INPUTS ......................................................................................................................64
10.1 - Temperature sensor ..............................................................................................................................................................64
10.2 - Pressure sensor ....................................................................................................................................................................67
11 - MANAGEMENT OF THE WATER PUMPS................................................................................................................................ 69
11.1 - Pump 1 ..................................................................................................................................................................................69
11.2 - Pump 2 ..................................................................................................................................................................................69
11.3 - Pump management if P2 = 3 (reversible air-to-water) + heating mode + P111 = boiler........................................................69
11.4 - Unseizing and switching the pumps ....................................................................................................................................69
11.5 - Actuation of variable-speed pump 1 on water-to-water machines via the 0/10V output:.......................................................70
12 - WINTER PROTECTION.............................................................................................................................................................72
12.1 - Frost protection of pumps and heat exchangers while unit is off ..........................................................................................72
12.2 - Water loop winter protection..................................................................................................................................................72
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