CIAT Connect 2 User Manual

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Table of Contents

11 MANAGEMENT of the WATER PUMPS 11.1 Pump3
- Table of Contents3
- Additional Board3
- Additional Board4
- Discharge Temperature Fault, Circuit 1 or4
- HP Pressure Fault, Circuits 1 and4
- Refrigerant Frost Limit Fault on Circuits 1 and4
- Self-Adjusting Function: Discharge Protection, Circuit 1 or4
- Water Frost Limit Fault on Circuits 1 and4
1 Important Recommendations5
2 General5
3 Composition6
- Main Control Board for Machines with One Refrigerating Circuit6
  - Additional Board 17
  - Additional Board 28
- Control and Display Console9
- Connection Via RS485 Serial Port for BMS or Control Console and Multiconnect with 500 Kw Module10
4 Description11
- Expansion (Additional) Boards 1 and11
- Main Board11
- Relay Boards11
5 Access Levels12
- Accessing the Various Access Levels12
- Man-Machine Communication12
- Selecting an Authorised Access Level12
- Classification of the Menus and Their Functions14
- Configuring Access Levels on the Controller14
6 List of Parameters Per Access Level14
- Management of the Numeric Codes for Accessing Levels 2 and14
7 Management of Aero-Connect Parameters22
8 Contents of the Menus23
- MAIN Menu23
- SETPOINTS Menu23
- MACHINE STATUS Menu24
- MACHINE PARAMETERS Menu28
- MEASURED VALUES Menu28
- ADJUSTMENT PARAMETERS Menu33
- OPERATION PARAMETERS Menu41
- FAULT MEMORY Menu52
- TEST MODE Menu53
- Automatic Machine Operation Control54
- Load Shedding Control54
9 Management of the On/Off Inputs54
- Water Flow Switch54
- Expansion Valve Fault55
- Fan Fault (Circuits 1 and 2)55
- Phase Controller Fault56
- Pump Fault56
- Compressor Protection57
- Manual HP Pressure Switch Fault on Circuit 1 or57
- Setpoint Selection Via On/Off Input58
- Variable Setpoint Via 4-20 Ma Input58
10 Management of the Analogue Inputs59
- Operating Mode Selection59
- Temperature Sensor59
- Pressure Sensor62
- Frost Protection of Pumps and Heat Exchangers While Unit Is off63
- Pump63
- Pump Management if P2 = 3 (Reversible Air-To-Water) + Heating Mode + P111 = Boiler63
- Unseizing and Switching the Pumps63
12 Winter Protection63
- Management of the Compressor Protections64
13 Management of the Functions64
- Water Loop Winter Protection64
- Management of Compressor Start-Up65
- Management of the Time Counters65
- Management of Configurable Output P11166
- Management of the Reversing Valves66
- Self-Adjusting Function: Refrigerant Frost Limit66
- Self-Adjusting Function: Water Frost Limit66
14 Self-Adjusting Functions66
15 Fault Functions67
- Self-Adjusting Function for High Water Return Temperatures67
- Self-Adjusting Function: HP Pressure Limit67
- Self-Adjusting Function: Minimum HP, Circuit 1 or67
  - Refrigerant Frost Limit Fault on Circuits 1 and 268
  - Discharge Temperature Fault, Circuit 1 or 269
- LP Fault on Circuit 1 or69
- Management of Superheat Faults70
16 Controls71
- Main Control in Cooling and Heating Modes (Operating Mode Based on P119)71
- Nverter72
- Water Temperature Setpoint Adjustment72
- Adjustment of Setpoint for the Water Supply and Return Temperatures (P141 = 1 or 2) if P775
- Control Setpoint (P251) Management76
- Storage Control NVERTER76
- Automated Self-Regulating Control77
- Control During Normal Operation or On/Off Control77
17 Control of Condensing Pressure for Air-Cooled Units77
- Éroconnect Free Cooling77
- Forced and Self-Adjusting Control for A, B and C78
- Fan Speed Control79
- Low Noise Control (Single-Fan Units Only - Aquaciat2)82
- Total Recovery Control82
- Management of the Air Blades if P10 = Centrifugal83
18 Control of Condensing Pressure for Water-To-Water Units84
19 Restriction of Operation of the Machines Based on the Outdoor Temperature84
- Restriction to the Maximum Air Temperature in Cooling Mode84
- Restriction to the Minimum Air Temperature in Heating Mode84
- Restriction to the Maximum Air Temperature in Heating Mode85
- Restriction to the Minimum Air Temperature in Cooling Mode85
- Management of the Auxiliary Heater Board and the Electric Auxiliary86
20 Management of the Auxiliary Heater Board and the Electric Auxiliary Heaters86
- Case of Two Parallel-Connected Machines87
21 Management of the Back-Up Boiler87
22 Master/Slave Control87
23 Actuation of the Electronic Expansion Valve91
- With Alco Driver and Display91
- With CIAT Driver91
24 Important Information Regarding the Control of an Inverter Compressor93
25 Defrosting of the Evaporator Coils94
26 Hourly Programming94
- Presentation94
- Definition of Holiday Zones95
- Definition of the Programming Stages95
- Operation95
27 Communication Protocol97
- Registers Accessible by Customer97
- Customer Access Bit98

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CIAT Connect 2 Specifications

General

Brand	CIAT
Model	Connect 2
Category	Control Unit
Language	English

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