CIAT AQUACIATPOWER LD-ST Series Instruction Manual
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CIAT AQUACIATPOWER LD-ST Series Instruction Manual

CIAT AQUACIATPOWER LD-ST Series Instruction Manual

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10536
05 - 2021
I n s t r u c t i o n m a n u a l

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Summary of Contents for CIAT AQUACIATPOWER LD-ST Series

  • Page 1 10536 05 - 2021 I n s t r u c t i o n m a n u a l...

  • Page 3: Table Of Contents

    CONTENTS PREFACE ..............4 8 - STANDARD CONTROL OPERATIONS AND OPTIONS .............. 39 1 - SAFETY CONSIDERATIONS ........ 5 Unit Start / Stop control ........39 Safety guidelines ..........5 Heating / Cooling control ........39 Safety precautions ..........5 Supplementary heating........

  • Page 4: Preface

    PREFACE Acronyms / Abbreviations The goal of this document is to give a broad overview of the main functions of the control system used to control In this manual, the refrigeration circuits are called circuit A and AQUACIAT POWER LD -ST/-HE air-cooled liquid chillers and circuit B.

  • Page 5: Safety Considerations

    1 - SAFETY CONSIDERATIONS Safety guidelines Installation, start-up and servicing of equipment can be hazardous if certain factors particular to the installation are not considered: operating pressures, electrical components, voltages, and the installation site (elevated plinths and built-up structures). Only qualified installation engineers and fully trained technicians are authorised to install and start up the equipment.

  • Page 6: Control Overview

    2 - CONTROL OVERVIEW Control system CONNECT TOUCH control system AQUACIAT POWER chillers and heat pumps are equipped with ● Allows users to control the unit via the CONNECT TOUCH the CONNECT TOUCH control that serves as a user interface user interface.

  • Page 7: Control Components

    3 - CONTROL COMPONENTS CONNECT TOUCH overview The CONNECT TOUCH system manages a number of mechanisms allowing the unit to operate effectively, including variable speed fans’ control, fixed or variable speed pumps’ control, etc. The CONNECT TOUCH control system is used to control the following types of AQUACIAT range units: POWER AQUACIAT...

  • Page 8: Hardware

    4 - HARDWARE Control boards mode) and monitor suction pressure safeties related to the compressor operating envelope. Suction pressure sensors are The electrical box includes all boards controlling the unit as well located on the common suction piping of each circuit. as the CONNECT TOUCH user interface.

  • Page 9: Terminal Block Connections

    4 - HARDWARE Terminal block connections Connections available at the user terminal block may vary depending on the selected options. The following table summarizes connections at the user terminal block. IMPORTANT: Some contacts can be accessed only when the unit operates in Remote mode. Terminal block connections Description Board...

  • Page 10: Rs485 Wiring (Best Practice)

    4 - HARDWARE RS485 wiring (best practice) 4.8.2 RS485: Daisy chain configuration For RS485 ports, one of the following cables can be used: The following illustration shows proper 3-wire cable with ■ two twisted pairs + a shield (RECOMMENDED) a shield in a daisy chain configuration. ■...

  • Page 11: Connect Touch User Interface

    5 - CONNECT TOUCH USER INTERFACE ⑤ ⑨ ② ③ ⑦ ⑧ ① ⑥ ④ ⑱ ⑩ ⑰ ⑪ ⑯ ⑫ ⑮ ⑬ ⑭ ① ⑩ ② ⑪ Home button OAT (Outdoor Air Temperature) ③ ⑫ Back button Condenser fans ④...

  • Page 12: Menu Structure

    5 - CONNECT TOUCH USER INTERFACE Menu structure Unit Start / Stop Alarm Menu Home Main Menu System Menu Login Menu Unit Mode Alarm Menu Main menu General Parameters Temperatures Pressures Pump Status Inputs Outputs Run Times Modes Energy Management DC Free Cooling Status Msc Status Setpoint Configuration...
  • Page 13 5 - CONNECT TOUCH USER INTERFACE Unit Start / Stop Alarm Menu Home Main Menu System Menu Login Menu Unit Mode Alarm Menu System Menu CPU Load EOL Resistor Network Brightness Date/Time Configuration Language & Unit System Software Info Hardware Info Alarm menu Reset Alarms Current Alarms...

  • Page 14: Header Buttons

    5 - CONNECT TOUCH USER INTERFACE Header buttons HOME SCREEN Home button Back button Main Menu button System Menu button Home screen Go back to the Main Menu System Menu displayed previous screen displayed displayed Login button Start/Stop button Alarm button Basic access Unit is stopped No alarm active on the unit...

  • Page 15: Explore The Synoptic Screen

    5 - CONNECT TOUCH USER INTERFACE Explore the synoptic screen IMPORTANT: When entering the menu, please note that the currently The Synoptic screen allows you to monitor the vapour-refrigeration selected item corresponds to the last running operating mode. cycle. The diagram indicates the current status of the unit, giving information on the unit capacity, the status of water heat exchanger This screen is displayed only when the unit is currently pumps, and the pre-defined setpoint parameter.

  • Page 16: Set The Schedule

    5 - CONNECT TOUCH USER INTERFACE Set the schedule Each program is in unoccupied mode unless a schedule time period is active. The control incorporates two time schedules, where the first one If two periods overlap and are both active on the same day, the (OCCPC01S) is used for controlling the unit start/stop, whereas occupied mode takes priority over the unoccupied period.

  • Page 17: Manage Display Settings

    5 - CONNECT TOUCH USER INTERFACE Manage display settings Security access settings User-level security ensures that only authorised users ƒ The Language & Unit System screen allows the user to do any are allowed to modify critical unit parameters. of the following: Only logged-in users are allowed to access the ƒ...

  • Page 18: Monitor Unit Parameters

    5 - CONNECT TOUCH USER INTERFACE Monitor unit parameters General unit parameters The General parameters screen provides access to a set of The Main menu screen provides access to the main control general unit parameters. parameters, including general parameters, inputs and outputs status, etc.

  • Page 19: Modify Unit Parameters

    5 - CONNECT TOUCH USER INTERFACE Modify unit parameters Override system configuration The Configuration menu gives access to a number of user- In some cases it is possible to override system configuration. modifiable parameters such as pump configuration, schedule The override screen provides the option to issue the command menu, etc.

  • Page 20: Analyse History Trends

    5 - CONNECT TOUCH USER INTERFACE 5.10 Analyse history trends The Trendings screen allows you to monitor a set of selected parameters. To access the Trendings screen, go to the Main menu and ƒ select Trendings (TRENDING). Select the parameters to be displayed and press the Save ƒ...

  • Page 21: Web Connection

    6 - WEB CONNECTION Web interface Technical documentation The CONNECT TOUCH control provides the functionality When using the CONNECT TOUCH control via a PC web to access and control unit parameters from a web interface. browser, you may easily access all technical documents related To connect to the controller via the web interface, it is necessary to the product and its components.

  • Page 22: Connect Touch Control: Menu Structure

    7 - CONNECT TOUCH CONTROL: MENU STRUCTURE Main menu Icon Displayed text* Description Name General Parameters General parameters GENUNIT Temperatures Temperatures TEMP Pressures Pressures PRESSURE Inputs Inputs status INPUTS Outputs Outputs status OUTPUTS Pump Status Pump status PUMPSTAT Run Times Run times RUNTIME Modes...
  • Page 23 7 - CONNECT TOUCH CONTROL: MENU STRUCTURE General Parameters Menu – GENUNIT Name Status Default Unit Displayed text* Description Operating mode: CTRL_TYP 0 to 2 Local=0 Net.=1 Remote=2 0 = Local, 1 = Network, 2 = Remote Unit running status: Off, Stopping, Delay, STATUS Run Status Running, Ready, Override, Tripout, Test, Runtest...
  • Page 24 7 - CONNECT TOUCH CONTROL: MENU STRUCTURE Pressures Menu – PRESSURE Name Status Default Unit Displayed text* Description DP_A kPa / PSI Discharge Pressure A Compressor discharge pressure, circuit A SP_A kPa / PSI Main Suction Pressure A Compressor suction pressure, circuit A DP_B kPa / PSI Discharge Pressure B...
  • Page 25 7 - CONNECT TOUCH CONTROL: MENU STRUCTURE Outputs Menu – OUTPUTS (continued) Point name Status Default Unit Displayed text* Description CP_B1 off/on Compressor B1 Compressor B1 command CP_B2 off/on Compressor B2 Compressor B2 command CP_B3 off/on Compressor B3 Compressor B3 command CP_B4 off/on Compressor B4...
  • Page 26 7 - CONNECT TOUCH CONTROL: MENU STRUCTURE Run Times Menu – RUNTIME Name Status Default Unit Displayed text* Description hr_mach hour Machine Operating Hours Unit operating hours st_mach Machine Starts Number Number of unit starts hr_cp_a1 hour Compressor A1 Hours Operating hours, compressor A1 hr_cp_a2 hour...
  • Page 27 7 - CONNECT TOUCH CONTROL: MENU STRUCTURE Modes Menu – MODES (continued) Name Status Default Unit Displayed text* Description m_dltp_a no/yes Low Delta Press Cir A Low delta pressure, circuit A m_dltp_b no/yes Low Delta Press Cir B Low delta pressure, circuit B m_night no/yes Night Low Noise Active...
  • Page 28 7 - CONNECT TOUCH CONTROL: MENU STRUCTURE DC Free Cooling Status Menu – DCFC_STA (continued) Name Status Default Unit Displayed text* Description FC_FAN4H 0 to 999999 hour DCFC Fan Stage 4 Hours DCFC / Fan stage 4: Operating hours FC_FAN5S 0 to 999999 DCFC Fan Stage 5 Start DCFC / Fan stage 5: Number of starts...

  • Page 29: Configuration Menu (Config)

    7 - CONNECT TOUCH CONTROL: MENU STRUCTURE Trendings – TRENDING Name Status Default Unit Displayed text* GENUNIT_CAPA_T 0 to 100 Cir A Total Capacity Total capacity, circuit A GENUNIT_CAPB_T 0 to 100 Cir B Total Capacity Total capacity, circuit B GENUNIT_CTRL_PNT °C / °F Control Point...
  • Page 30 7 - CONNECT TOUCH CONTROL: MENU STRUCTURE Energy Monitoring – ENERGY Name Status Unit Displayed text* Description COOLING MODE Cooling mode cPwrOut Cooling Power Output Cooling power output cPwrIn Electical Power Input Electrical power input Energy Efficiency (EER) EER (Energy Efficiency Ratio) cEnergOu Cooling Energy Output Cooling energy output...
  • Page 31 7 - CONNECT TOUCH CONTROL: MENU STRUCTURE General Configuration Menu – GENCONF Name Status Default Unit Displayed text* Description prio_cir 0 to 2 Cir Priority Sequence Circuit priority 0 = Automatic circuit selection 0=Auto, 1=A Prio 1 = Circuit A priority 2=B Prio 2 = Circuit B priority seq_typ...
  • Page 32 7 - CONNECT TOUCH CONTROL: MENU STRUCTURE Reset Configuration Menu – RESETCFG Name Status Default Unit Displayed text* Description cr_sel 0 to 4 Cooling Reset Select Cooling reset selection hr_sel 0 to 4 Heating Reset Select Heating reset selection 0=None, 1=OAT, 2=Delta T 0 = None, 1 = OAT, 2 = Delta T 3=4-20mA control 3 = 4-20 mA control 4=Space Temp...
  • Page 33 7 - CONNECT TOUCH CONTROL: MENU STRUCTURE Schedule Menu – SCHEDULE Name Displayed text* Description OCCPC01S OCCPC01S - Schedule Menu Unit on/off time schedule OCCPC02S OCCPC02S - Schedule Menu Unit setpoint selection time schedule Depends on the selected language (French by default). Holiday Menu –...

  • Page 34: Network Parameters Menu

    7 - CONNECT TOUCH CONTROL: MENU STRUCTURE Network Parameters menu Icon Displayed text* Description Name Email Configuration Email configuration EMAILCFG Modbus RTU Config. Modbus RTU configuration MODBUSRS Modbus TCP/IP Config Modbus TCP/IP configuration MODBUSIP BACnet Config. BACnet Configuration BACNET Depends on the selected language (French by default). Email Configuration Menu –...
  • Page 35 7 - CONNECT TOUCH CONTROL: MENU STRUCTURE Modbus RTU Config. Menu – MODBUSRS (continued) Name Status Default Unit Displayed text* Description 1 = Two stop bit 1 = Two stop bit real_typ 0 to 1 Real Type Management Real Type Management 0 = Float X10 0 = Float X10 1 = IEE 754...

  • Page 36: System Menu

    7 - CONNECT TOUCH CONTROL: MENU STRUCTURE System Menu Icon Displayed text* Description Name CPU Load CPU Load Menu CPULOAD EOL Resistor EOL Resistor Menu EOLRES Network Network Menu NETWORK Date/Time Configuration Date/Time Configuration DATETIME Language & Unit System Language & Unit System Menu LANGUNIT Brightness Brightness...
  • Page 37 020-ST-20V4B100 Software Version Software version number N.NNN.N SDK Version SDK version number UI Version User interface version CIAT Brand Brand name Depends on the selected language (French by default). Hardware Info Menu – HWINFO Status Displayed text* Description Board Variant...

  • Page 38: Alarm Menu

    7 - CONNECT TOUCH CONTROL: MENU STRUCTURE Alarm Menu Icon Displayed text* Description Name Reset Alarms Alarm reset ALARMRST Current Alarms Current alarms CUR_ALM Alarm History Alarms history ALMHIST1 Major Alarm History Major alarms history ALMHIST2 Depends on the selected language (French by default). Reset Alarms –...

  • Page 39: Standard Control Operations And Options

    8 - STANDARD CONTROL OPERATIONS AND OPTIONS Unit Start / Stop control Heating / Cooling control The unit state is determined based on a number of factors, AQUACIAT POWER heat pumps and chillers fitted with a boiler including its operating type, active overrides, open contacts, may operate in cooling or heating mode.

  • Page 40: Supplementary Heating

    8 - STANDARD CONTROL OPERATIONS AND OPTIONS Supplementary heating 8.2.1 Operating mode - control The operating mode, i.e. cooling or heating, is determined AQUACIAT POWER LD chillers may be fitted with a boiler that based on the following parameters: allows the unit to run in heating mode if required. The boiler is Unit on/off status [status]: Unit running status.

  • Page 41: Hydronic Kit Option

    8 - STANDARD CONTROL OPERATIONS AND OPTIONS 8.4.5 Setting pump protections Water flow management methods are as follows: 1) Fixed speed control (the control ensures a constant pump To mitigate the risk of freezing the water exchanger when the speed based on compressor capacity). outside air temperature is low, the CONNECT TOUCH control 2) Water flow control based on constant water delta pressure provides a means to automatically start the pump each day at...

  • Page 42: Control Point

    8 - STANDARD CONTROL OPERATIONS AND OPTIONS Control point The following tables provide the overview of possible setpoint The control point represents the water temperature that the selections, where the selected setpoint depends on the unit must produce. The required capacity can be decreased following parameters: depending on the unit load operating conditions.

  • Page 43: Capacity Limitation

    8 - STANDARD CONTROL OPERATIONS AND OPTIONS Capacity limitation 8.6.2 Reset calculation Reset means that the active setpoint is modified so that less The CONNECT TOUCH control allows for the constant control machine capacity is required in order to satisfy the current of the unit capacity.

  • Page 44: Controlling Capacity

    8 - STANDARD CONTROL OPERATIONS AND OPTIONS Controlling capacity Night mode The control adjusts the capacity to keep the water exchanger Night mode allows users to configure the unit to operate with temperature at its setpoint. Compressors are started and specific parameters in a specific time period, e.g.

  • Page 45: Setting Holidays

    8 - STANDARD CONTROL OPERATIONS AND OPTIONS 8.11 Setting holidays 8.13 Energy Management Module The control allows the user to define 16 holiday periods. Each The CONNECT TOUCH control may be interconnected with the holiday period is defined by three parameters, i.e. the month, Energy Management Module (EMM) used to control the level the start day, and the duration of the holiday period.

  • Page 46: Defrost Cycle (Heat Pumps Only)

    8 - STANDARD CONTROL OPERATIONS AND OPTIONS 8.15 Defrost cycle (heat pumps only) 8.18 Brine options When the outside air temperature is low and the ambient AQUACIAT POWER units offer a few different cooler fluid types, humidity is high, the probability of frost forming on the surface including standard water fluid as well as the optional brine fluid, of the outdoor coil increases.

  • Page 47: Software Activation Key(S)

    8 - STANDARD CONTROL OPERATIONS AND OPTIONS 8.20 Software Activation Key(s) The Replacement mode ends when the Software Activation Key is installed or the period of 7 days elapsed (7 days since the first AQUACIAT POWER units with CONNECT TOUCH offer some start of the compressor).

  • Page 48: Diagnostics

    9 - DIAGNOSTICS The control system has many fault tracing aid functions, protecting the unit against risks that could result in the failure of the unit. Control diagnostics The CONNECT TOUCH user interface enables the quick display of the unit status: The blinking bell icon indicates that there is an alarm, but the unit is still running (degraded mode).

  • Page 49: Alarms Description

    9 - DIAGNOSTICS Alarms description This section includes all alarms/alerts associated with the operation of the unit as well as optional drives used to provide variable speed fans and variable speed pumps functionalities. 9.3.1 General / Major alarms The following table includes a list of alarms that might appear on the unit.
  • Page 50 9 - DIAGNOSTICS Code Description Possible cause Action taken on the unit Reset type 4703 Loss of communication with VFD Pump Bus installation fault, Unit is stopped and restarted with Automatic, if communication is Drive Board Number 1 communication error the second pump (if available);...
  • Page 51 9 - DIAGNOSTICS Code Description Possible cause Action taken on the unit Reset type 10043 Low Entering Water Temperature in Low entering fluid temperature in None Automatic, if water temperature Heating Heating mode returns to normal or heating mode is stopped 10051 Water Exchanger Flow Switch Failure Flow switch fault...
  • Page 52 9 - DIAGNOSTICS Code Description Possible cause Action taken on the unit Reset type 200nn VFD Pump 2 Drive Failure As above As above As above 370nn VFD Pump 1 Drive Alert As above None Automatic 380nn VFD Pump 2 Drive Alert As above None Automatic...
  • Page 53 9 - DIAGNOSTICS 9.3.2 Drive alarms/alerts Drive alarms or alerts for VFD drive failure are displayed based on the following formulas: 16000+X*1000+YYY for alarms ƒ 34000+X*1000+YYY for alerts ƒ X stands for the drive number and YYY is the alarm/alert code. Drive number Drive assignment Drive for fan(s) of circuit A...
  • Page 54 9 - DIAGNOSTICS Drive alerts Code Alarm/Alert Description Action to be taken VFD alerts Alert 10 V low Contact Manufacturer Agency Alert Live zero error Contact Manufacturer Agency Alert No motor Check the motor connections Alert Mains phase loss Check the VFD supply voltage and the phase balance (±3%) Alert DC link voltage high Check the VFD supply voltage and the phase balance (±3%)

  • Page 55: Maintenance

    10 - MAINTENANCE In order to ensure the optimal operation of the equipment as well as the optimization of all the available functionalities, it is recommended to activate a Maintenance Contract with your local Service Agency. The contract will ensure your equipment is regularly inspected by specialists so that any malfunction is detected and corrected quickly and no serious damage can occur to your equipment.
  • Page 56 Manufacturer: Carrier SCS, Montluel, France. Printed in the European Union. Manufacturer reserves the right to change any product specifications without notice.

This manual is also suitable for:

Aquaciatpower ld-he seriesAquaciatpower ild-st seriesAquaciatpower ild-he series

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