Page 1 REV: B This document is the property of CIAT and is delivered on the express condition that it is not to be disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT without its written consent, and that no right is granted to disclose or so use any information contained in this document.
Page 2: About This Document
This term is used to refer to a set of tools used by HVAC service, including Network Service Tool, PCDCT. Copyright© 2017 CIAT. All rights reserved. CIAT reserves the right to change any information in this document at any time without prior notice.
Page 3: Revisions History
May 2017 DC Free Cooling Status menu updated DC Free Cooling Config menu updated Medium Brine renamed to Light Brine This document contains confidential information that shall not be disclosed outside to any third party without the written consent of CIAT.
Page 4: Table Of Contents
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 4/115 Rev: B Dynaciat LG - LGN CONTENTS ABOUT THIS DOCUMENT ............................2 REVISIONS HISTORY .............................3 ABBREVIATIONS ..............................8 INTRODUCTION ..............................9 PURPOSE ..............................9 PRODUCT OVERVIEW ..........................9 GETTING STARTED – CONTROL FUNCTIONS ..................10 PRODUCT COMPONENTS ........................
Page 5 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 5/115 Rev: B Dynaciat LG - LGN NETWORK PARAMETERS MENU ......................50 5.4.1 Modbus RTU Config. – MODBUSRS ....................50 5.4.2 Modbus TCP/IP Config. – MODBUSIP .................... 51 5.4.3 Network Comfort Ctrl – NETCTRL ....................51 5.4.4 BACnet Standard Conf.
Page 6 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 6/115 Rev: B Dynaciat LG - LGN 6.17.3 Installation ............................79 6.17.4 Condenserless control (LGN series) ....................79 6.18 FREE COOLING (DRY COOLER) ......................80 6.18.1 Installation ............................80 6.18.2 Starting / Stopping Free Cooling ...................... 80 6.18.3 Free Cooling temperatures ......................
Page 7 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 7/115 Rev: B Dynaciat LG - LGN 5K RESISTOR, RESISTANCE VS. TEMPERATURE CURVE ................. 114...
Page 8: Abbreviations
Dynaciat LG - LGN ABBREVIATIONS Abbreviation Definition Local Equipment Network: Protocol for the controlled exchange of data between two or more intelligent control devices within the geographic confines of single CIAT equipment Discharge Pressure Suction Pressure Saturated Suction Temperature Saturated Condensing Temperature...
Page 9: Introduction
This manual is to be used by Service organisations inside CIAT. It is delivered on the express condition that it is not to be disclosed, reproduced in whole or in part, or used for manufacture by anyone other than CIAT.
Page 10: Getting Started - Control Functions
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 10/115 Rev: B Dynaciat LG - LGN GETTING STARTED – CONTROL FUNCTIONS Unit control functions are divided into two categories, i.e. standard and premium. The optional functions may require the hardware upgrade; however, the same software is used. Function Hardware Config...
Page 11 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 11/115 Rev: B Dynaciat LG - LGN Function Hardware Config Factory, Cooler water pump control AUX1 Service, User Factory, Condenser water pump control AUX1 Service, User Customer pump (cooler) Relays User Customer pump (condenser) Relays User Factory,...
Page 12: Product Components
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 12/115 Rev: B Dynaciat LG - LGN PRODUCT COMPONENTS All boards making up the Connect Touch control system are installed inside the electrical cabinet. They communicate via the internal bus (RS485). The controller may function as part of the Network (Modbus as standard or BACnet IP as option). The unit is fitted with a 4.3 in.
Page 13: Communication
Operating at 38400 baud. This internal network can be connected to the control box of CIAT DryCoolers, used on the condenser side or FreeCooling Drycooler. To make this connection, a LEN connector should be available in the control box of the unit.
Page 14: Control Software
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 14/115 Rev: B Dynaciat LG - LGN 2 CONTROL SOFTWARE SOFTWARE OVERVIEW Connect Touch control The software is referenced under the 16-digit software reference number: ECG-SR-20R45041. The last two digits (e.g. 41) indicate the software version (41 stands for version 4.1).
Page 15 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 15/115 Rev: B Dynaciat LG - LGN Navigate to File in the upper-left corner of the window and click Download Software Update Package. Find the file to be imported and click the Open button. The control will ask you whether you want to keep or erase current unit configuration.
Page 16: Connect Touch User Interface
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 16/115 Rev: B Dynaciat LG - LGN 3 CONNECT TOUCH USER INTERFACE The control interface is a 4.3-inch touch screen allowing for easy and effective management of the control functions. Due to security reasons, some parameters cannot be accessed via the local interface device. In order to perform the advanced configuration of the control, it is necessary to use service network tools.
Page 17: Password Management
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 17/115 Rev: B Dynaciat LG - LGN 3.1.4 Password management The password can be managed directly on the display. To change the access level, press in the upper-right corner of the Synoptic screen. In the User Login screen, provide a password to gain access to more...
Page 18: Language Customization
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 18/115 Rev: B Dynaciat LG - LGN 3.1.7 Language customization The control allows the user to add a customized translation to the display. The new language package can be downloaded to the Connect Touch control using HVAC S-Service. Language customization requires the following three steps to be followed: •...
Page 19 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 19/115 Rev: B Dynaciat LG - LGN TRANSLATION All labels that are present on the user interface are translated directly in the csv file. • lng_und.csv must be stored in Unicode utf-8 format. •...
Page 20: Touch Screen Settings (Optional)
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 20/115 Rev: B Dynaciat LG - LGN TOUCH SCREEN SETTINGS (OPTIONAL) The Connect Touch user interface gives the possibility of customising the touch screen so as to meet the specific needs of the user. This customisation is entirely optional. 3.2.1 SETUP MENU The Setup menu allows users to modify settings such as network, web connection, display, etc.
Page 21 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 21/115 Rev: B Dynaciat LG - LGN FIND AND MODIFY THE UNIT IP ADDRESS Navigate to the Network menu, and then press the TCP/IP Address field. Once the parameters have been specified, press OK to confirm or press the Network field to exit the screen without saving the modification.
Page 22: Web Connection Settings
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 22/115 Rev: B Dynaciat LG - LGN 3.2.2.3 Ignored DHCP servers To see a list of ignored DHCP servers, press the Ignored DHCP Servers field in the Parameters menu (see the Parameters menu in section 3.2.2.2). ①...
Page 23: System Settings
Press the Intro screen field in the System settings view in order to configure the start-up information. Welcome message at the start-up of the ① application: Welcome (default) CIAT logo display at the start-up of the ② application (default) Go to Beginning of Chapter – Table of Contents...
Page 24: Display Settings (Contrast, Screen Timeout, Calibration)
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 24/115 Rev: B Dynaciat LG - LGN 3.2.5 DISPLAY SETTINGS (CONTRAST, SCREEN TIMEOUT, CALIBRATION) The Display view allows users to modify a set of display parameters such as contrast, backlight timeout and rotation. To access the menu, press the Display field in the Setup menu (see section 3.2.1). ①...
Page 25: Unit Configuration
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 25/115 Rev: B Dynaciat LG - LGN 4 UNIT CONFIGURATION Appropriate unit configuration is critical to ensure that all chiller operations are performed effectively. The system control can distinguish three configuration levels, i.e. factory configuration, service configuration and user configuration.
Page 26: Detailed Menu Description
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 26/115 Rev: B Dynaciat LG - LGN 5 DETAILED MENU DESCRIPTION This section includes all menus that can be accessed via the Connect Touch user interface. • Beware that tables presented in this section may include parameters referring to optional functionalities. •...
Page 27: General Parameters Menu - Genunit
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 27/115 Rev: B Dynaciat LG - LGN 5.1.1 General Parameters Menu – GENUNIT Table Name: GENUNIT PIC Table Type: 11H Instance: 1 //MAINMENU/ Point Name Displayed text Status Unit CTRL_TYP Local=0, Net.=1, Remote=2 0 to 2 STATUS Running Status...
Page 28: Temperature Menu - Temp
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 28/115 Rev: B Dynaciat LG - LGN 5.1.2 Temperature Menu – TEMP Table Name: TEMP PIC Table Type: 11H Instance: 2 //MAINMENU/ Point Name Displayed text Status Unit Entering Water Temp °C / °F Leaving Water Temp °C / °F SST_A...
Page 29: Setpoint Menu - Setpoint
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 29/115 Rev: B Dynaciat LG - LGN 5.1.4 Setpoint Menu – SETPOINT Table Name: SETPOINT PIC Table Type: 17H Instance: 1 //MAINMENU/ Point Name Displayed text Status * Default Unit csp1 Cooling Setpoint 1 -28.9 to 25.0 12.0 °C...
Page 30: Inputs Menu - Inputs
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 30/115 Rev: B Dynaciat LG - LGN 5.1.5 Inputs Menu – INPUTS Table Name: INPUTS PIC Table Type: 11H Instance: 4 //MAINMENU/ Point Name Displayed text Status Unit ONOFF_SW On/Off - Remote Switch open / close HC_SW Remote heat/Cool Switch...
Page 31: Pump Status Menu - Pumpstat
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 31/115 Rev: B Dynaciat LG - LGN 5.1.7 Pump Status Menu – PUMPSTAT Table Name: PUMPSTAT PIC Table Type: 11H Instance: 6 //MAINMENU/ Point Name Displayed text Status Unit COOLER PUMP CL_PUMP1 Cooler Pump 1 Command off / on CL_PUMP2 Cooler Pump 2 Command...
Page 32: Runtime Menu - Runtime
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 32/115 Rev: B Dynaciat LG - LGN 5.1.8 Runtime Menu – RUNTIME Table Name: RUNTIME PIC Table Type: 11H Instance: 7 //MAINMENU/ Point Name Displayed text Status Unit hr_mach Machine Operating Hours hour chr_mach Cooling Operating Hours hour...
Page 33: Air Condensing Status Menu - Air_Cond
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 33/115 Rev: B Dynaciat LG - LGN 5.1.10 Air Condensing Status menu – AIR_COND This table provides information on the status of the dry cooler connected on the condenser side (LG) as well as the air condenser connected to the refrigerant circuit (LGN).
Page 34: Modes Menu - Modes
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 34/115 Rev: B Dynaciat LG - LGN 5.1.12 Modes Menu – MODES Table Name: MODES PIC Table Type: 11H Instance: 8 //MAINMENU/ Point Name Displayed text Status Unit m_delay Delay Active no / yes m_2ndspt Second Setpoint Active no / yes...
Page 35: Alarms Menu
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 35/115 Rev: B Dynaciat LG - LGN ALARMS MENU The Alarms menu provides access to the alarm histories, shows current alarms that are active on the unit and allows users to reset alarms. Menus accessed via the Alarm menu are as follows: Icon Menu...
Page 36: Configuration Menu - Config
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 36/115 Rev: B Dynaciat LG - LGN CONFIGURATION MENU – CONFIG Configuration tables give access to a number of parameters that are set in the factory production line as well as parameters that can be configured by service technicians or chillers operators. Menus accessed via the Configuration menu are as follows: Icon Menu...
Page 37: Factory Parameters
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 37/115 Rev: B Dynaciat LG - LGN 5.3.1 Factory parameters The following configuration tables include parameters set in the factory production line. Note that parameters given in the tables below may vary from the actual look depending on the options installed. Factory tables presented in this manual are for the purpose of information only.
Page 38 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 38/115 Rev: B Dynaciat LG - LGN 5.3.1.2 Factory 2 Parameters – FACTORY2 The Factory 2 Parameters menu provides numbers and names of different components of the unit, including pump, exchanger, and piping. The values are computed based on the unit size and water pump type. The values are computed according to the unit size and water pump type (high pressure or low pressure pump) listed in the FACTORY table, i.e.
Page 39: Service Parameters
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 39/115 Rev: B Dynaciat LG - LGN 5.3.2 Service Parameters The service configuration tables include parameters that can be set by service technicians only. Service tables are read-only when using the local interface (Connect Touch user interface) and read/write when using the service tool.
Page 40 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 40/115 Rev: B Dynaciat LG - LGN zm_spt Auto Z Multiplier 4 to 12 hc_zm Maximum Z Multiplier 1 to 6 ser_pass Service Password 0 to 9999 Cool Water Loop control cl_w_ct Cool Flow Ctrl Method 0 to 2 0 fixed, 1 dt T, 2 dt P clwdtspt...
Page 41 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 41/115 Rev: B Dynaciat LG - LGN 5.3.2.4 Condensing Control – CONDCTRL This menu can be modified only when the unit is off. Changing any parameter in this table will cause a reboot of the board (after about 30 seconds).
Page 42 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 42/115 Rev: B Dynaciat LG - LGN 5.3.2.5 Master/Slave – MST_SLV This Master/Slave menu (MST_SLV) can be modified only when the unit is OFF. Changing any parameter in this MST_SLV menu will trigger the reboot sequence (after about 30 seconds). Table Name: MST_SLV PIC Table Type: 13H Instance: 5...
Page 43 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 43/115 Rev: B Dynaciat LG - LGN 5.3.2.7 DC Free Cooling Config – DCFC_CFG Table Name: DCFC_CFG PIC Table Type: 13H Instance: 19 //MAINMENU/CONFIG Point Name Displayed text Status Default Unit oat_s OAT Selection 5.0 to 20.0 10.0 °C...
Page 44 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 44/115 Rev: B Dynaciat LG - LGN 5.3.2.9 Update Hour Table – UPDTHOUR (used for retrofit only) This table is to be used in the event of a module failure. It can be accessed through Network Service Tool. Parameters can be modified only at the first power-up before the first compressor starts.
Page 45 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 45/115 Rev: B Dynaciat LG - LGN 5.3.2.10 Maintenance Configuration Table – MAINTCFG This table can be modified only when the unit is Off. It can be accessed through Network Service Tool. Table Name: MAINTCFG PIC Table Type: 13H Instance: 4 Point Name...
Page 46: User Configuration
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 46/115 Rev: B Dynaciat LG - LGN 5.3.3 User configuration User configuration tables include all unit parameters which can be configured by the user. 5.3.3.1 Genunit Config – GEN_CONF Table Name: GEN_CONF PIC Table Type: 10H Instance: 1 //MAINMENU/CONFIG Point Name...
Page 47 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 47/115 Rev: B Dynaciat LG - LGN 5.3.3.3 Heat/Cool Config Menu Table – HCCONFIG Table Name: HCCONFIG PIC Table Type: 10H Instance: 3 //MAINMENU/CONFIG Point Name Displayed text Status Default Unit cr_sel Cooling Reset Select 0 to 3 hr_sel Heating Reset Select...
Page 48 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 48/115 Rev: B Dynaciat LG - LGN 5.3.3.5 User Configuration – USERCONF Table Name: USERCONF PIC Table Type: 10H Instance: 5 //MAINMENU/CONFIG Point Name Displayed text Status Default Unit use_pass User Password User Password: This password can be modified by changing this User password is used to gain access to basic specific parameter in the USERCONF menu.
Page 49 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 49/115 Rev: B Dynaciat LG - LGN 5.3.3.8 Broadcast – BRODCAST Table Name: BRODCAST PIC Table Type: 14H Instance: 1 //MAINMENU/CONFIG Point Name Displayed text Status Default Unit broad_en Activate 0 to 2 OAT Broadcast oatbusnm Bus #...
Page 50: Network Parameters Menu
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 50/115 Rev: B Dynaciat LG - LGN NETWORK PARAMETERS MENU Configuration tables give access to a number of parameters that are set in the factory production line as well as parameters that can be configured by service technicians or chillers operators. Menus accessed via the Network Parameters menu are as follows: Icon Menu...
Page 51: Modbus Tcp/Ip Config. - Modbusip
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 51/115 Rev: B Dynaciat LG - LGN 5.4.2 Modbus TCP/IP Config. – MODBUSIP This Modbus TCP/IP Config menu (MODBUSIP) can be modified only when the unit is OFF. Changing any parameter in this MODBUSIP menu will trigger the reboot sequence (after about 30 seconds). Table Name: PIC Table Type: 13H Instance: 15...
Page 52: Email Configuration - Emailcfg
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 52/115 Rev: B Dynaciat LG - LGN 5.4.5 Email Configuration – EMAILCFG Table Name: EMAILCFG PIC Table Type: 13H Instance: 11 //MAINMENU/CONFIG Point Name Displayed text Status Default Unit senderP1 Sender Email Part1 senderP2 Sender Email Part2 recip1P1...
Page 53: Maintenance Menu - Maintain
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 53/115 Rev: B Dynaciat LG - LGN MAINTENANCE MENU – MAINTAIN The maintenance menu provides access to a wide variety of chillers parameters, including capacity control, fans and pumps drives status and many more. Menus accessed via the Maintenance menu are as follows: Icon Menu...
Page 54: Capacity Exv Ctrl - Loadfact
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 54/115 Rev: B Dynaciat LG - LGN 5.5.1 Capacity EXV Ctrl – LOADFACT Table Name: LOADFACT PIC Table Type: 12H Instance: 1 //MAINMENU/MAINTMNU Point Name Displayed text Status Default Unit ctrl_avg Average Ctrl Water Temp °C / °F diff_wt Differential Water Temp...
Page 55: Master/Slave Maint - M_Mstslv
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 55/115 Rev: B Dynaciat LG - LGN 5.5.3 Master/Slave Maint – M_MSTSLV Table Name: M_MSTSLV PIC Table Type: 12H Instance: 3 //MAINMENU/MAINTMNU Point Name Displayed text Status Default Unit MASTER/SLAVE CONTROL mstslv Unit is Master or Slave Disable/Master/Slave Disable ms_ctrl...
Page 56: Protection Limit - Pr_Limit
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 56/115 Rev: B Dynaciat LG - LGN 5.5.5 Protection Limit – PR_LIMIT "Protection Limit" (PR_LIMIT) is a read-only menu. Table Name: PR_LIMIT PIC Table Type: 12H Instance: 5 //MAINMENU/MAINTMNU Point Name Displayed text Status Default Unit...
Page 57: Head Control - Headctrl
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 57/115 Rev: B Dynaciat LG - LGN 5.5.7 Head Control – HEADCTRL "Head Control" is a read-only menu. Parameters given in this table cannot be forced. Table Name: HEADCTRL PIC Table Type: 12H Instance: 9 //MAINMENU/MAINTMNU Point Name...
Page 58: Quick Test Table
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 58/115 Rev: B Dynaciat LG - LGN QUICK TEST TABLE The main control gives access to a Quick Test table allowing service technicians to test all unit outputs. This function is allowed only when the unit is in Local Off operating type. Quick Test Menu Table –...
Page 59: Control Operations
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 59/115 Rev: B Dynaciat LG - LGN 6 CONTROL OPERATIONS This section provides an overview of the Connect Touch control functionalities together with configuration and access instructions. It is to be used as a guide for facilitating the configuration of control options. This part of the document explores the control logic of each function available for the series of Dynaciat LG - LGN units.
Page 60: Unit Start / Stop (On / Off)
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 60/115 Rev: B Dynaciat LG - LGN UNIT START / STOP (ON / OFF) The unit may operate in one of the following modes: • ON: The unit start is allowed, but not required. It is started in the case of cooling or heating demand. OFF: The unit is commanded to be "OFF".
Page 61: Delay At Unit Start-Up
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 61/115 Rev: B Dynaciat LG - LGN 6.2.2 Delay at unit start-up How to verify Off-to-On delay The Off-to-On delay preventing short cycling and allowing the water flow to be ready may be started Off-to-On delay (minutes before the unit start-up) in the following circumstances: can be verified via the General Parameters menu...
Page 62: Runtimes Management
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 62/115 Rev: B Dynaciat LG - LGN RUNTIMES MANAGEMENT The control allows users to control the unit runtimes. How to access the run times Runtimes are the running hours of a particular part The runtimes can be accessed in the Runtime menu of the unit, for example, pump, compressor, etc.
Page 63: Cooler Pumps Control
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 63/115 Rev: B Dynaciat LG - LGN COOLER PUMPS CONTROL As an option, Connect Touch may control one or two water pumps and determines their on/off state. Both pumps cannot be running at the same time. 6.7.1 Starting / stopping pumps For units in Cooling mode: The cooler pump can be running when the unit is in "delay", "ready", "running", or...
Page 64: Periodical Pump Start-Up
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 64/115 Rev: B Dynaciat LG - LGN 6.7.4 Periodical pump start-up The periodical pump start-up function is used to control the pumps when the unit is stopped for a long period of time, e.g. during the winter season. How to configure periodical pump start-up Starting the pump periodically for a few seconds increases the lifetime of the pump bearings and the...
Page 65: Condenser Pumps Control
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 65/115 Rev: B Dynaciat LG - LGN CONDENSER PUMPS CONTROL Connect Touch may control one or two water pumps and determines their on/off state. Both pumps cannot be running at the same time. 6.8.1 Starting / stopping pumps For units in Cooling mode: The condenser pump is started during the "delay"...
Page 66: Automatic Pump Control
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 66/115 Rev: B Dynaciat LG - LGN 6.8.4 Automatic pump control If the pump auto control sequence has been selected (PUMPCONF – Pump Configuration), the control selects the active pump based on the number of running hours (of each pump) and the configured pump rotation delay. For units fitted with two pumps, the auto pump changeover may take place when the compressor is OFF.
Page 67: Variable Water Flow Management
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 67/115 Rev: B Dynaciat LG - LGN VARIABLE WATER FLOW MANAGEMENT Connect Touch control offers the 'variable water flow management' option that allows for variable speed water pump control according to customer needs. This functionality applies to cooler as well as condenser pumps. 6.9.1 Methods of water flow control Variable speed pumps are managed by one of the following methods:...
Page 68: Electric Heating Control
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 68/115 Rev: B Dynaciat LG - LGN 6.10 ELECTRIC HEATING CONTROL Electric heating stages (EHS) option, if available, can be used as supplemental heating or heating replacement when the operating conditions are not suitable for thermodynamic heating. The number of electric heating stages is defined in the factory.
Page 69: Control Point
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 69/115 Rev: B Dynaciat LG - LGN 6.11 CONTROL POINT The control point represents the water temperature How to access the control point that the unit must produce. The control point (cooling or heating) can be accessed in the General Parameters menu •...
Page 70 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 70/115 Rev: B Dynaciat LG - LGN 6.11.1.3 Active setpoints Active setpoint is the setpoint that is currently active on the unit. Cooling setpoint 1 and cooling setpoint 2 are used in Cooling mode, whereas heating setpoint 1 and heating setpoint 2 are used in Heating mode. The active setpoint is determined in accordance with the following parameters: •...
Page 71 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 71/115 Rev: B Dynaciat LG - LGN 6.11.1.4 Cooling & heating setpoint limits The setpoint limit may differ depending on the unit type, fluid type, options installed on the unit as well as unit configuration, including optional entering fluid control.
Page 72: Reset Calculation
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 72/115 Rev: B Dynaciat LG - LGN 6.11.2 Reset calculation The purpose of the reset is to modify the setpoint in response to low load conditions, so that less unit capacity is required (in cooling the setpoint is typically increased, whereas in heating the setpoint is usually decreased). The reset can be based on the outside air temperature that gives the measure of the load trends for the building, return fluid temperature (ΔT provides the average building load), or 4-20 mA reset signal provided by the sensor connected to the input.
Page 73: Electronic Expansion Valve (Exv)
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 73/115 Rev: B Dynaciat LG - LGN 6.12 ELECTRONIC EXPANSION VALVE (EXV) Control of the EXV is based on saturated suction temperature as measured by a suction pressure transducer converted to a saturation temperature. It allows for measuring the flow of refrigerant to the cooler to maintain the approach (pinch) setpoint.
Page 74: Lead/Lag Circuit
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 74/115 Rev: B Dynaciat LG - LGN 6.13 LEAD/LAG CIRCUIT The controller determines the lead and the lag circuit of the unit (multi-circuit units). The lead circuit is the one that starts first when the unit is turned on. ...
Page 75: Ramp Loading
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 75/115 Rev: B Dynaciat LG - LGN 6.14.2.2 Compressors loading sequence (dual circuit units) How to change capacity loading sequence The control distinguishes between two types of compressor loading sequences. Capacity loading sequence can be set in the Genunit Config menu (GEN_CONF).
Page 76: Capacity Overrides
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 76/115 Rev: B Dynaciat LG - LGN 6.14.5 Capacity overrides Under certain conditions capacity overrides allowing for effective unit capacity management may be implemented. How to verify active capacity overrides The capacity override allows for controlling the unit Capacity overrides are displayed in the Capacity EXV Ctrl capacity management.
Page 77: Capacity Limitation
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 77/115 Rev: B Dynaciat LG - LGN 6.15 CAPACITY LIMITATION The capacity limitation function determines the unit maximum allowable capacity that can be run.  Limitation value is given in percentage, where 100% means that no unit capacity limitation is required. ...
Page 78: Condensing Water Flow Control
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 78/115 Rev: B Dynaciat LG - LGN 6.16 CONDENSING WATER FLOW CONTROL Condensing water flow control option enables the How to set condensing control type control of circuit(s) head pressure by using a water- Condensing control type can be set via the cooled condenser, a variable speed pump or a Condensing Control menu (CONDCTRL).
Page 79: Dry Cooler Condenser Control
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 79/115 Rev: B Dynaciat LG - LGN 6.17.2 Dry cooler condenser control The sub-master loop will control the dry cooler water outlet temperature through fans staging. Dry cooler fans can be either fixed speed or variable speed. It is not possible to have a combination of fixed-speed and variable- speed fans installed on the dry cooler.
Page 80: Free Cooling (Dry Cooler)
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 80/115 Rev: B Dynaciat LG - LGN 6.18 FREE COOLING (DRY COOLER) Units fitted with a dry cooler allow for power consumption reduction which amounts to energy and cost savings. 6.18.1 Installation How to enable DC free cooling option The installation of a dry cooler allows for "free DC free cooling option can be enabled in the Option cooling"...
Page 81: Master/Slave Control
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 81/115 Rev: B Dynaciat LG - LGN 6.19 MASTER/SLAVE CONTROL This function is used to perform master/slave control between two chillers linked by the IP network. Master and slave chillers must operate on the same IP sub-network. When the water control is done on the outlet side, the master chiller and the slave chiller are in parallel and should have two additional sensors (provided): •...
Page 82: Master Chiller Status
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 82/115 Rev: B Dynaciat LG - LGN The lead is always started and loaded first. It is unloaded last. The lag is started and loaded last (when the lead is already at full load). It is unloaded first. As mentioned earlier, if the lead lag balance select has not been enabled, then the lead chiller is always the master chiller.
Page 83: Master/Slave Network Configuration
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 83/115 Rev: B Dynaciat LG - LGN 6.19.5 Master/Slave network configuration How to enable RTU Server Network IP can be used to communicate through Ethernet. The RTU server can be configured in the ModbusRTU Configuration table (MODBUSRS).
Page 84: Master/Slave Assembly Error
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 84/115 Rev: B Dynaciat LG - LGN 6.19.6 Master/Slave assembly error Errors that emerged during the master/slave operation may affect the whole system. In the event of the master/slave error (ms_error), information is displayed in the Master/Slave Maint Menu (M_MSTSLV). Description Normal The master or slave water pump is not configured (pump_seq = 0) while the control of the lag unit pump is...
Page 85: Master/Slave Assembly
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 85/115 Rev: B Dynaciat LG - LGN 6.19.7 Master/Slave assembly The figures below illustrate master/slave application for the most common plant layouts. Common pump is not recommended as the water may go through the non-producing unit. Parallel Master/Slave chillers Figure 1: Dedicated primary pumping, variable flow: Leaving water control Figure 2: Common primary pumping, constant flow: Leaving water control...
Page 86 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 86/115 Rev: B Dynaciat LG - LGN Figure 3: Dedicated primary pumping, variable flow: Entering water control Figure 4: Common primary pumping, variable flow: Entering water control Series Master/Slave chillers Figure 5: dedicated primary pumping, constant flow: Leaving water control Go to Beginning of Chapter –...
Page 87: Service & Maintenance
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 87/115 Rev: B Dynaciat LG - LGN 6.20 SERVICE MAINTENANCE The Connect Touch control comes with the Service Maintenance functionality that allows users to schedule critical service maintenance alerts. 6.20.1 Introduction to "service maintenance" options How to enable the "service maintenance"...
Page 88: Water Loop Control
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 88/115 Rev: B Dynaciat LG - LGN 6.20.4 Water loop control The water loop control logic can be enabled in the How to enable water loop control MAINTCFG menu. The water loop control can be set in the MAINTCFG •...
Page 89: Quick Test Function
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 89/115 Rev: B Dynaciat LG - LGN 6.21 QUICK TEST FUNCTION The quick test function is used to drive a quick test, giving the possibility of verifying that all unit controlled outputs are operating properly. To see the whole list of quick test options and for more information on the quick test function, please see "Quick Test Menu Table –...
Page 90: Water Pump(S)
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 90/115 Rev: B Dynaciat LG - LGN 6.21.5 Water pump(s) The test is used to turn on each water pump and verify that pump is running correctly. For each “side of the unit”, there are three items to control the pump in quicktest: One to test pump 1 One to test pump 2 One to test the variable speed pump...
Page 91: Alarm Notifications
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 91/115 Rev: B Dynaciat LG - LGN 6.22 ALARM NOTIFICATIONS The Connect Touch control provides the option to define one or two recipients who receive e-mail notifications each time the new alarm is triggered or all alarms have been reset. Please note that email notifications can be set only by service technicians.
Page 92: Diagnostic Function
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 92/115 Rev: B Dynaciat LG - LGN 6.23 DIAGNOSTIC FUNCTION The diagnostic function protects the unit against any damages. It controls the unit state and warns against any abnormal conditions that could result in the failure of the unit (see also section 6.24). 6.23.1 Alarms The control provides a record of 10 current alarms and gives access to the alarm history.
Page 93: Alarm Codes
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 93/115 Rev: B Dynaciat LG - LGN 6.24 ALARM CODES 6.24.1 General alarms The following table includes a list of alarms with their probable cause and its effect on the unit. Name Code Description Cause of the alarm Action taken on the unit...
Page 94 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 94/115 Rev: B Dynaciat LG - LGN Name Code Description Cause of the alarm Action taken on the unit Reset method Water Exchanger Leaving Fluid CL_WP_OUT_F 12025 Sensor voltage reading is equal to 0 Unit shuts down Automatic Transducer Failure...
Page 95 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 95/115 Rev: B Dynaciat LG - LGN Name Code Description Cause of the alarm Action taken on the unit Reset method - SST< -25°C (-13°F) for more than 3s Circuit B Low Saturated Suction Automatic (first alarm within LOW_SUCTION_B_F 10006...
Page 96 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 96/115 Rev: B Dynaciat LG - LGN Name Code Description Cause of the alarm Action taken on the unit Reset method Pressure Increase not Established Compressor B1 Not Started Or CPB1_REVERSE_ROT_F 10020 As above B1_fail Manual Pressure Increase not Established...
Page 97 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 97/115 Rev: B Dynaciat LG - LGN Name Code Description Cause of the alarm Action taken on the unit Reset method When the unit is "OFF": 1. The cooler pump control is enabled (pump_seq >0) and cooler_flow_switch_ checking_when_ pump_stop is enabled and the cooler flow switch is closed after the cooler...
Page 98 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 98/115 Rev: B Dynaciat LG - LGN Name Code Description Cause of the alarm Action taken on the unit Reset method water control type (Master regulates on LWT while the slave regulates on EWT) 9007: Master pump is configured while the Slave pump is not 9008: Slave pump is configured while the Master...
Page 99 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 99/115 Rev: B Dynaciat LG - LGN Name Code Description Cause of the alarm Action taken on the unit Reset method cross otherwise, Manual CD_WL_PROCESS_F 11100 Condenser Water loop Failure Condenser water loop failure CD_WL_PRES_ZERO_ER Condenser water loop failure 11102...
Page 100: Variable Speed Alarm Sub-Codes
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 100/115 Rev: B Dynaciat LG - LGN 6.24.2 Variable speed alarm sub-codes Drive alarms for cooler pump or condenser pump drive failure are displayed based on the following formula: 19000+YYY for cooler pump(s) and 20000+YYY for condenser pump(s), where YYY represents the alarm code. The table given below shows the most common alarms associated with the variator malfunction.
Page 101: Communication Problem Troubleshooting
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 101/115 Rev: B Dynaciat LG - LGN 7 COMMUNICATION PROBLEM TROUBLESHOOTING HARDWARE PROBLEMS Symptoms Possible causes Checks to be made Solution The unit does not respond to Problem at the RS485 Check the Network cable Replace the the instructions sent by the converter level of the PC or...
Page 102: Ethernet/Ip Troubleshooting
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 102/115 Rev: B Dynaciat LG - LGN ETHERNET/IP TROUBLESHOOTING 7.3.1 The unit is point-to-point connected to a PC The cable can be either crossed or uncrossed. The unit is energised. It may be necessary to check the Ethernet connection and/or carry out the PC network board configuration (see also section 7.3.3).
Page 103: Unit Connected To The Local Network
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 103/115 Rev: B Dynaciat LG - LGN If it is still impossible to access the unit, open the command prompt. In order to open the Command Prompt, please perform the following steps: Open a command prompt under Windows using one of the following methods: •...
Page 104: Ethernet Connection
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 104/115 Rev: B Dynaciat LG - LGN PROXY SERVER AND AUTOMATIC CONFIGURATION SCRIPT To check these parameters using any modern web browser, e.g. Internet Explorer (version 8 or higher), perform the following steps: Click the Tools button and select "Internet Options"...
Page 105: Java Configuration
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 105/115 Rev: B Dynaciat LG - LGN 7.3.4 Java configuration To configure proxy settings for Java, please perform the following steps: Open the Control Panel and double-click the Java application icon Note: Please make sure that Java application is not used by other applications. If it is, please check their compatibility with the following configuration.
Page 106: Hvac S-Service Communication Problem
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 106/115 Rev: B Dynaciat LG - LGN HVAC S-SERVICE COMMUNICATION PROBLEM Symptoms Possible causes Checks to be made Solutions The connect button unknown Disconnect and reconnect the USB cable. does not work. Turn the user interface off and on again. Restart the computer The HVAC S-Service TCP port already used...
Page 107 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 107/115 Rev: B Dynaciat LG - LGN To solve this problem, please perform the following steps: Connect the USB cable to the Connect Touch user interface. Start HVAC S-Service (Note: USB connection is required). Click the Connect button to connect the PC to the Controller.
Page 108 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 108/115 Rev: B Dynaciat LG - LGN Change the port number to a free one. Click Apply. Go to Beginning of Chapter – Table of Contents...
Page 109: Switch To Booter Mode
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 109/115 Rev: B Dynaciat LG - LGN 7.4.2 Switch to BOOTER mode If it is still impossible to communicate with the ST3, the Booter mode should be started. To force the ST3 into the Booter mode, perform the following steps: Power off the ST3.
Page 110: Boards Description
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 110/115 Rev: B Dynaciat LG - LGN 8 BOARDS DESCRIPTION SIOB CIRCUIT A BOARD MAPPING SIOB Board #1 Ref 00PPG000492500A (Bus #0 - Element #49) DIP Switches : 0 0 0 0 Channel Type Option Parameter Description...
Page 111: Siob Circuitb Board Mapping
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 111/115 Rev: B Dynaciat LG - LGN SIOB CIRCUIT B BOARD MAPPING SIOB Board #2, Ref 00PPG000492500A , Bus #0 - Element #50, DIP Switches: 0 0 0 1 circuit B / Pump Source Side (270) Channel Type Option...
Page 112: Aux1 #1 Board Mapping (Electric Heating Stages)
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 112/115 Rev: B Dynaciat LG - LGN AUX1 #1 BOARD MAPPING (ELECTRIC HEATING STAGES) AUX1 Board #1 32GB 500 442 Electrical Heater stages (Bus #0 - Element #86) 0x55 Local board DIP Switch : 0101 0101 Channel Type Option...
Page 113: Aux1 #4 Board
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 113/115 Rev: B Dynaciat LG - LGN AUX1 #4 BOARD (MASTER-SLAVE / OAT SENSOR ) AUX1 Board #4 32GB 500 442 Master Slave (58) / OAT sensor (312) No Dry Cooler (no 154) (Bus #0 - Element #57) 0x38 Local board DIP Switch: 0011 1000...
Page 114: Appendix
CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 114/115 Rev: B Dynaciat LG - LGN 9 APPENDIX 5K RESISTOR, RESISTANCE VS. TEMPERATURE CURVE Temp. Temp. Resistance Temp. Temp. Resistance Temp. Temp. Resistance Temp. Temp. Resistance Temp. Temp. Resistance (°C) (°F) (OHM) (°C) (°F) (OHM)
Page 115 CONTROL SERVICE GUIDE ECG-SG-16-005 CONNECT TOUCH Page 115/115 Rev: B Dynaciat LG - LGN Temp. Temp. Resistance Temp. Temp. Resistance Temp. Temp. Resistance Temp. Temp. Resistance Temp. Temp. Resistance (°C) (°F) (OHM) (°C) (°F) (OHM) (°C) (°F) (OHM) (°C) (°F) (OHM) (°C) (°F)

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