Manuale UtenteSommario1.0 Introduction71.1 Features7Large and Small Displays7Figure 1 Liebert iCOM components72.0 Liebert iCOM Display Components and Functions8Figure 2 Liebert iCOM display components8Table 1 Keyboard icons and functions9Figure 3 Status menu, large display, graphical view10Figure 4 Liebert iCOM default screen symbols102.1 Navigating Through the Liebert iCOM Menus112.1.1 Control Interface112.1.2 Accessing Submenus11Accessing Submenus on Small Displays11Accessing Submenus on Large Displays112.1.3 Entering a Password12Figure 5 Menu tree—Small display, stand-alone or networked12Figure 6 Menu tree—Large display, stand-alone132.1.4 Viewing Multiple Units with a Networked Large Display14Figure 7 Menu tree—Large display, networked14Figure 8 User menu icons15Table 2 User menu icons15Figure 9 Service menu icons17Table 3 Service menu icons173.0 Operation183.1 Single Unit Functions183.1.1 Unit/Fan Control18Start - Stop18Figure 10 Start-stop priority switches18Autorestart19Loss of Power Alarm19Fan Alarm / Fan Protection Settings193.1.2 Chilled Water Units with Variable Speed Motor19VSD Fan Speed (Auto or Manual VSD Fan Speed Control)19VSD Setpoint (VSD Fan Speed Setting)193.1.3 General Compressor Requirements20Low-Pressure Time Delay20High Pressure Alarm20Digital Scroll High Temperature213.1.4 Compressor Timing—Units With Two Compressors213.1.5 Compressor Sequencing213.2 Motorized Ball Valve in Digital Scroll Units223.2.1 MBV Operation After Compressor is Turned Off223.2.2 Service Offset—Changing System Pressure Settings223.3 Temperature Control—Single Source Cooling (No Extra Cooling Coil)233.3.1 Temperature Proportional Band23Figure 11 Temperature proportional band233.3.2 Compressor Control24Compressor Proportional Bands24Figure 12 One single-step compressor without unloaders24Figure 13 Two single-step compressors without unloaders or one compressor with an unloader (two-step)24Figure 14 Two compressors with unloaders (four-step)25Figure 15 Digital scroll capacity modulation, 10-100% variable26Figure 16 Single and dual digital scroll compressor activation points263.3.3 Chilled Water Control27Figure 17 Three-point actuator control (example: cooling)273.4 Temperature Control—Second Cooling Source273.4.1 Differential Temperatures / Controls (Comparator Circuit)27Figure 18 Second cooling source and compressorized cooling28GLYCOOL™ Cooling—Free-Cooling29Dual Cooling Source293.5 Temperature Control—Reheat293.5.1 Three-Stage Electric, Hot Gas and Hot Water Reheat29Table 4 Reheat configuration types29Figure 19 Three-stage heating303.5.2 SCR Reheat31Figure 20 Two single-step compressors with SCR reheat set to Tight mode31Figure 21 Two single-step compressors with SCR reheat set to Standard mode323.6 Humidity Control33Figure 22 Humidity proportional band333.6.1 Humidification34Infrared Humidifier34Table 5 Parameters for infrared humidifier control343.6.2 Dehumidification35Dehumidification Low Limit35Dehumidification Compressor Quantity35Table 6 Dehumidification With Comp settings35Reheat During Dehumidification363.7 Control Types363.7.1 Temperature and Humidity Control Types363.7.2 Humidity Sensor Reading Control Types373.7.3 Supply Limit—Optional383.7.4 High and Low, Temperature and Humidity Events383.7.5 User Inputs / Customer Inputs39Table 7 Customer inputs393.7.6 Event Types and Properties40Table 8 Possible event settings—some events not available in all units413.8 Possible Event Notifications42Table 9 Event notifications—large or small display423.9 Next Maintenance Calculation433.9.1 Calculation of Next Maintenance and Diagnostics43Calculating Unit Wellness43Parameters for Next Maintenance Calculation444.0 Teamwork454.1 Teamwork Modes454.1.1 Application of Teamwork Modes454.1.2 No Teamwork454.1.3 Teamwork Mode 145Figure 23 Teamwork Mode 1 with two cooling units464.1.4 Teamwork Mode 2474.1.5 Standby – Rotation47Typical Standby (Lead/Lag) Function47Standby and Cascade475.0 Installing a Liebert iCOM Unit-to-Unit Network485.1 Placement of Cooling Units485.2 U2U Hardware: Cables and Network Switch48Minimum Network Switch Requirements485.3 Wiring for Unit-to-Unit Communications—U2U49Liebert iCOM U2U Ethernet Network49Table 10 Sample Liebert iCOM network configurations495.3.1 Wiring a Liebert iCOM U2U Network50Small Displays50Figure 24 Connecting two cooling units, each with a small display using a crossover Ethernet cable50Large Displays50Wall-Mount Large Display50Combining Large and Small Displays on a U2U Network50Figure 25 Wiring a small display for stand-alone operation51Figure 26 Wiring a small display for U2U network operation51Figure 27 Wiring a large display for stand-alone operation52Figure 28 Wiring a large display for U2U network operation52Figure 29 Liebert iCOM input-output control board53Liebert vNSA53Table 11 Ports available for connecting Liebert iCOM control devices53Figure 30 Liebert vNSA with optional remote large display545.4 External Communications—Building Management Systems, Liebert SiteScan®546.0 Mounting a Large Display on a Wall556.0.1 Location Considerations55Necessary Mounting Items55Mounting Instructions55Figure 31 Liebert iCOM display dimensions567.0 User Menu Parameters57Table 12 Setpoints parameters57Spare Part List—Large Display Only57Table 13 Spare part list parameters—large display only57Table 14 Event log parameters57Table 15 View network parameters—large display only*57Table 16 Set alarms parameters58Table 17 Sensor data58Active Alarms59Table 18 Active alarms parameters59Table 19 Display setup parameters59Table 20 Total run hours parameters60Table 21 Timer parameters—Sleep Mode60Table 22 Service contacts parameters618.0 Service Menu Parameters62Table 23 Setpoints parameters62Unit Diary—Large Display Only63Table 24 Unit diary parameters63Table 25 Standby settings / lead-lag parameters64Table 26 Maintenance / wellness settings parameters64Table 27 Diagnostics / service mode parameters67Table 28 Set alarms parameters69Table 29 Sensor calibration / setup parameters75Table 30 System / network setup parameters—large display only76Table 31 Network setup parameters77Table 32 Options setup parameters79Table 33 Service contact info parameters80Dimensioni: 2,44 MBPagine: 84Language: EnglishApri il manuale
Manuale UtenteSommario1.0 Introduction111.1 Features11Large and Small Displays11Figure 1 Liebert iCOM components112.0 Liebert iCOM Display Components and Functions12Figure 2 Liebert iCOM display components12Table 1 Keyboard icons and functions132.1 Control Interface—Large Display14Figure 3 Unit view status menu14Figure 4 Liebert iCOM default screen symbols142.1.1 Navigating to Various Views in the Liebert iCOM15Figure 5 Use arrow keys to navigate among screens15Figure 6 Unit status menu, large display, graphical comma view162.2 System Screen16Figure 7 System screen with rack view of sensors17Figure 8 System screen172.3 Unit View with Rack Sensors18Figure 9 Unit view with rack sensor temperatures182.4 Navigating Through the Liebert iCOM Menus182.4.1 Accessing Submenus on Large Displays19Figure 10 Menu tree—Large display, stand-alone19Figure 11 Navigation with a large display—single unit view20Figure 12 Navigation with a large display—Network view212.4.2 Accessing Submenus on Small Displays21Figure 13 Menu tree—Small display, stand-alone or networked212.5 Display Setup222.5.1 Entering a Password22Figure 14 Entering a password232.5.2 Viewing Multiple Units with a Networked Large Display23Figure 15 Menu tree—Large display, networked23Figure 16 User menu icons24Table 2 User menu icons24Figure 17 Service menu icons26Table 3 Service menu icons263.0 Operation283.1 Single Unit Functions283.1.1 Unit/Fan Control28Start - Stop28Figure 18 Start-stop priority switches29Autorestart29Loss of Power Alarm29Fan Alarm / Fan Protection Settings29Variable Speed Fans—EC or Variable Frequency Drives30Figure 19 Setting manual fan control and changing the setpoint30Table 4 Controlling sensor settings30Minimum Fan Speed31Fluid or Air Economizer with Variable Fan Speed Fans313.1.2 Back-Draft Fan Damper—Units with EC Fans32Figure 20 Energy efficiency—Air bypass through unit, no mechanical damper32Figure 21 Energy efficiency—No bypass air, EC fan damper323.1.3 Back-Draft Fan Damper—Units with Centrifugal Fans333.1.4 Power Monitoring333.1.5 General Compressor Operation33Low-Pressure Time Delay33Advanced DX Freeze Protection33Pump Down34High-Pressure Alarm34Figure 22 Diagnostics/service mode screen, page 1 of 8343.1.6 Compressor Timing—Short-Cycle Protection353.1.7 Compressor Sequencing on Two-Compressor Units363.1.8 Motorized Ball Valve in Water-Cooled Units363.1.9 MBV Operation After Compressor is Turned Off363.1.10 Service Offset—Changing System Pressure Settings373.2 General Chilled Water Operation373.2.1 Chilled Water Quick Start373.2.2 Improved Valve Response37Figure 23 DIP switch and jumper locations on Liebert iCOM control board383.2.3 Custom Dual Chilled Water Valve Staging383.2.4 Fluid Temperature Monitoring39Figure 24 DIP switches in 2T sensors39Table 5 DIP switches in 2T sensors393.2.5 Fluid Flow Monitoring393.3 Temperature Control39Figure 25 Temperature proportional band403.3.1 Setting Up PI Control41Table 6 PI control troubleshooting413.3.2 Compressor Control42Compressor Proportional Bands42Figure 26 One single-step compressor without unloaders42Figure 27 Two single-step compressors without unloaders or one compressor with an unloader (two-step)43Figure 28 Two compressors with unloaders (four-step)43Figure 29 Digital scroll capacity modulation, 10-100% variable44Figure 30 Single and dual digital scroll compressor activation points443.3.3 Chilled Water Control45Figure 31 Chilled water valve control (example: cooling)453.4 Liebert Fluid Economizer453.4.1 Differential Temperatures / Controls (Comparator Circuit)46Figure 32 Second cooling source and two-step compressorized cooling46GLYCOOL™ Cooling—Free-Cooling47Figure 33 Free-cooling and compressorized operation48Dual-Cooling Source483.4.2 Liebert Air Economizer™48Figure 34 Temperature and humidity sensor connections—Liebert DS and Liebert CW49Figure 35 Supply limit thermistor wiring and restricted airflow switch location503.5 Liebert Air Economizer™ Operation513.5.1 Liebert Air Economizer™ System Overview52Figure 36 Air flow pattern of a Liebert Air Economizer system-regular ceiling52Figure 37 Air flow pattern of a Liebert Air Economizer system-dropped ceiling53Not in Operation54Startup Configurations543.5.2 Liebert Air Economizer Control Settings54Figure 38 Operational ranges for chilled water systems and compressor systems55Figure 39 Service/Economizer, page 1 of 355Figure 40 Setpoints screen, page 4 of 10563.5.3 Disable the Liebert Air Economizer57Air Economizer Remote Status Indication57Figure 41 Deactivation switch57Air Economizer Emergency Override583.5.4 Adjust the Restricted Airflow Switch on the Liebert Air Economizer583.6 Temperature Control—Reheat583.6.1 Electric, Hot Gas and Hot Water Reheat59Table 7 Reheat configuration types59Figure 42 Three-stage heating593.6.2 SCR Reheat60Tight Mode60Figure 43 Two single-step compressors with SCR reheat set to Tight mode60Figure 44 Two single-step compressors with SCR reheat set to Standard mode613.7 Humidity Control61Figure 45 Humidity proportional band623.7.1 Humidification64Infrared Humidifier64Table 8 Parameters for infrared humidifier control64Steam Generating Canister Humidifier643.7.2 Dehumidification64Dehumidification Low Limit65Figure 46 Setpoints screen, page 3 of 965Dehumidification Compressor Quantity66Table 9 Dehumidification With Comp settings66Reheat During Dehumidification66Figure 47 Dehumidification and reheat control bands673.8 Supply Control68Figure 48 Placing the supply air temperature sensor68Table 10 DIP switches in 2T sensors683.9 Liebert Optimized Aisle Control693.9.1 Operation70Inlet Rack Temperature Control70Additional Details of Rack Temperature Operation70Temperature Compensation70Figure 49 Return Compensation Setpoint in Service Menu71Figure 50 Return Compensation in Unit View71Figure 51 Return Compensation control band72Figure 52 Return Compensation setpoint deviation72Figure 53 Supply compensation73Figure 54 Supply Compensation in Unit View73Figure 55 Supply compensation74Figure 56 Temperature/humidity/static pressure control sensors in Optimized Aisle743.9.2 Static Pressure Control75Figure 57 Senor placement75Figure 58 Single static pressure sensor Liebert iCOM installation76Figure 59 Static pressure sensor placement76Figure 60 S190 Limit77Figure 61 S190 Control773.10 Event Types and Properties78Table 11 Possible event settings—some events not available in all units793.10.1 High- and Low-Temperature and Humidity Events803.10.2 User Inputs81Table 12 Customer inputs813.10.3 Analog Inputs82Table 13 Number of analog inputs82Figure 62 Analog connection control board switch82Table 14 Analog connection control board switch position833.10.4 Liebert iCOM-DO™83Table 15 Alarm mapping833.10.5 Possible Event Notifications84Table 16 Event notifications—large or small display843.11 Wellness—Next Maintenance Calculation853.11.1 Calculating Next Maintenance and Diagnostics85Calculating Unit Wellness85Figure 63 Wellness—Basic settings screen, page 1 of 985Parameters for Next Maintenance Calculation864.0 Teamwork874.1 Compatibility With Previous Liebert iCOM Controls874.2 Teamwork Modes874.2.1 Application of Teamwork Modes884.2.2 No Teamwork884.2.3 Teamwork Mode 188Figure 64 Teamwork Mode 1, serial staging894.2.4 Teamwork Mode 2894.2.5 Teamwork Mode 3 (Optimized Aisle)90Figure 65 Teamwork Mode 3—Fixed speed vs. variable speed90Cascade90Lead / Lag - Failure Scenarios91Application and Configuration of Rack Sensors91Figure 66 Remote sensors92Figure 67 Sensor positioning924.2.6 Hardware Setup934.3 Liebert Optimized Aisle Rack Sensor Installation93Figure 68 2T sensor93Figure 69 Setting DIP switches for 2T sensors934.3.1 Tools Required for Installation944.3.2 DIP Switch Settings94Figure 70 DIP switches in 2T sensors94Table 17 DIP switch settings for remote sensor applications94Set 2T Sensor Identities - DIP Switch Settings95Figure 71 Setting 2T Sensor DIP Switches954.3.3 Terminate the Final Sensor on the CANbus Link95Figure 72 2T sensor arrangement and termination95Terminating Last 2T Sensor96Figure 73 Termination jumper setting964.3.4 Install 2T Sensors on Racks to be Monitored964.3.5 Install CANbus Cable Between 2T Sensors97Figure 74 Connect CANbus cable974.3.6 Connecting the CANbus cable at the Unit and Securing the CANbus Cable to Ground98Figure 75 Install grounding ring connector984.3.7 Software Setup994.3.8 Standby—Rotation99Typical Standby (Lead/Lag) Function99Standby and Cascade1005.0 Installing a Liebert iCOM Unit-to-Unit Network1015.1 Placement of Cooling Units1015.1.1 Balancing Operating and Standby Units101Figure 76 Standby unit layout example—10 cooling units in room1015.2 U2U Hardware: Cables and Network Switch102Minimum Network Switch Requirements1025.3 Wiring for Unit-to-Unit Communications—U2U102Liebert iCOM U2U Ethernet Network102Table 18 Sample Liebert iCOM network configurations1025.3.1 Wiring a Liebert iCOM U2U Network103Small Displays103Figure 77 Connecting two cooling units, each with a small display, using a crossover Ethernet cable103Large Displays104Figure 78 U2U network setup diagram104Wall-Mount Large Display105Combining Large and Small Displays on a U2U Network105Figure 79 Wiring a small display for stand-alone operation105Figure 80 Wiring a small display for U2U network operation106Figure 81 Wiring a large display for U2U network operation107Liebert vNSA™108Table 19 Ports available for connecting Liebert iCOMs108Figure 82 Liebert vNSA with optional remote large display1086.0 External Communication—Building Management Systems, Liebert SiteScan®1096.1 Building Management Failover Features1096.2 Monitoring Points110Figure 83 Liebert Monitoring Points Generator interface1107.0 User Menu Parameters111Figure 84 User menu icons1117.1 User-Setpoints Screens111Figure 85 Setpoints screen, page 1111Figure 86 Setpoints screen, page 21137.2 User-Graphic Menu Screens114Figure 87 Graphs, page 1114Figure 88 Graphs, page 2114Spare Part List114Event Log115View Network1157.3 User-Set Alarms Menu Screens116Figure 89 Set alarms screen, page 1116Figure 90 Set alarms screen, page 2117Figure 91 Set alarms screen, page 3118Figure 92 Set alarms screen, page 41187.4 User-Sensor Data Menu Screens119Figure 93 Sensor data screen, page 1119Figure 94 Sensor data screen, page 2 (return only)121Figure 95 Sensor data screen, page 3122Figure 96 Sensor data screen, page 4123Figure 97 Sensor data screen, page 5124Active Alarms1247.5 User-Display Setup Menu Screen124Figure 98 Display setup screen, page 1124Figure 99 Display setup screen, page 21267.6 User-Total Run Hours Menu Screens126Figure 100 Total run hours screen1267.7 User-Sleep Mode Menu Screens127Figure 101 Sleep mode screen1277.8 User-Condenser Timer Menu Screens128Figure 102 Condenser timer screen—page 1128Figure 103 Condenser timer screen—page 2129Configuring Low Noise Operation1307.9 User-Expansion View Menu Screens130Figure 104 Expansion Device View, page 11308.0 Service Menu Parameters131Figure 105 Service Menu Main Screen1318.1 Service-Setpoints Menu Screens132Figure 106 Setpoints screen, page 1 of 10132Figure 107 Setpoints screen, page 2 of 10133Figure 108 Setpoints screen, page 3 of 10134Figure 109 Setpoints screen, page 4 of 10136Figure 110 Setpoints screen, page 5 of 10137Figure 111 Setpoints screen, page 6 of 10138Figure 112 Setpoints screen, page 7 of 10140Figure 113 Setpoints screen, page 8 of 10141Figure 114 Setpoints screen, page 9 of 10142Figure 115 Setpoints screen, page 10 of 10143Service—Unit Diary Menu Screens (Large Display Only)1448.2 Service—Standby Settings / Lead Lag Menu Screen144Figure 116 Standby settings / lead-lag screen, page 1144Figure 117 Standby settings / lead-lag screen, page 21458.3 Service-Maintenance / Wellness Menu Screens146Figure 118 Wellness—Basic settings screen, page 1 of 9146Figure 119 Wellness—Motor settings screen, page 2 of 9147Figure 120 Wellness—Compressor 1 settings screen, page 3 of 9147Figure 121 Wellness—Compressor 2 settings screen, page 4 of 9148Figure 122 Wellness—Electric heater 1 settings screen, page 5 of 9148Figure 123 Wellness—Electric heater 2 settings screen, page 6 of 9149Figure 124 Wellness—Electric heater 3 settings screen, page 7 of 9149Figure 125 Wellness—Humidifier settings screen, page 8 of 9150Figure 126 Wellness—Economizer settings screen, page 9 of 91508.4 Service-Diagnostics / Service Mode Screens151Figure 127 Diagnostics/service mode screen, page 1 of 8151Figure 128 Diagnostics/service mode screen, page 2 of 8152Figure 129 Diagnostics/service mode screen, page 3 of 8153Figure 130 Diagnostics/service mode screen, page 4 of 8154Figure 131 Diagnostics/service mode screen, page 5 of 8155Figure 132 Diagnostics/service mode screen, page 6 of 8156Figure 133 Diagnostics/service mode screen, page 7 of 8156Figure 134 Diagnostics/service mode screen, page 8 of 81578.5 Service-Set Alarms Menu Screens157Figure 135 Set alarms screen, page 1 of 11158Figure 136 Set alarms screen, page 2 of 11159Figure 137 Set alarms screen, page 3 of 11160Set Alarm Screens, Pages 4-11160Figure 138 Set alarms screen, page 4 of 11161Figure 139 Set alarms screen, page 5 of 11161Figure 140 Set alarms screen, page 6 of 11162Figure 141 Set alarms screen, page 7 of 11162Figure 142 Set alarms screen, page 8 of 11163Figure 143 Set alarms screen, page 9 of 11163Figure 144 Set alarms screen, page 10 of 11164Figure 145 Set alarms screen, page 11 of 111648.6 Service-iCOM-DO Setup Menu Screens165Figure 146 iCOM-DO overview and override screen, page 1 of 3165Figure 147 iCOM-DO events setup screen, page 2 of 3166Figure 148 Liebert iCOM-DO events setup screen, page 3 of 31668.7 Service-Sensor Calibration Menu Screens167Figure 149 Sensor calibration setup screen, page 1 of 12167Figure 150 Sensor calibration/setup screen, page 2 of 12168Figure 151 Sensor calibration/setup screen, page 3 of 12168Figure 152 Sensor calibration/setup screen, page 4 of 12169Figure 153 Sensor calibration/setup screen, page 5 of 12170Figure 154 Sensor calibration/setup screen, page 6 of 12170Figure 155 Sensor calibration/setup screen, pages 7 and 8 of 12171Figure 156 Sensor calibration/setup screen, page 9 of 12172Figure 157 Sensor calibration/setup screen, page 10 of 12173Figure 158 Sensor calibration/setup screen, page 11 of 12174Figure 159 Sensor calibration/setup screen, page 12 of 121758.8 Service-Economizer Menu Screens176Figure 160 Economizer, page 1 of 3176Figure 161 Economizer, page 2 of 3177Figure 162 Economizer, page 3 of 31788.9 Service-System/Network Setup Menu Screens179Figure 163 System/network setup screen—System, page 1 of 2 (large display only)179Figure 164 System/network setup screen—System, page 2 of 2 (large display only)1808.10 Service-System/Network Unit-Level Setup Menu Screens180Figure 165 System/network setup screen—Unit, page 1 of 2180Figure 166 System/network setup screen—Unit, page 2 of 21828.11 Service-Options Setup Menu Screens183Figure 167 Options setup, page 1 of 6183Figure 168 Options setup, page 2 of 6184Figure 169 Options setup, page 3 of 6185Figure 170 Options setup, page 4 of 6186Figure 171 Options setup, page 5 of 6187Figure 172 Options setup, page 6 of 61888.12 Service-Service Contact Info Menu Screens189Table 20 Service contact information parameters1898.13 Service-Remote Sensors Menu Screens190Figure 173 Remote sensors, page 1 of 2190Figure 174 Remote sensors, page 2 of 21918.14 Service-Expansion Device Setup Menu Screens192Figure 175 Expansion device, page 1 of 3192Figure 176 Expansion device, pages 2 and 3193Dimensioni: 3,57 MBPagine: 196Language: EnglishApri il manuale
