Manuel D’UtilisationTable des matièresImportant Safety Instructions7SAVE THESE INSTRUCTIONS71.0 Introduction91.1 System Descriptions91.1.1 Compressorized Systems91.1.2 GLYCOOL™ (Chilled Glycol Cooling) Systems91.1.3 Chilled Water Systems92.0 Startup102.1 Startup Procedure103.0 Operation with iCOM Control123.1 Features12Large and Small Displays12Figure 1 Liebert iCOM components124.0 Liebert iCOM Display Components and Functions13Figure 2 Liebert iCOM display components13Table 1 Keyboard icons and functions14Figure 3 Liebert iCOM default screen symbols154.1 Navigating Through the Liebert iCOM Display15Figure 4 Liebert iCOM default home screen—Graphical view15Figure 5 Liebert iCOM default home screen—Simple view164.1.1 Control Interface—Three Main Menus164.1.2 Accessing Menus and Settings17Viewing Data174.1.3 Entering the Password17Figure 6 Entering the password174.1.4 Accessing Submenus18Accessing Submenus on Small Displays18Accessing Submenus on Large Displays18Figure 7 Menu tree—Large and small displays, stand-alone or networked194.2 Changing Operational Settings20Figure 8 Liebert iCOM User Menu icons204.3 Changing Liebert iCOM’s Display Settings21Figure 9 Display setup screen214.4 Graphical Data Record22Figure 10 Temperature graph224.5 Liebert iCOM Service Menu Icons and Legend22Figure 11 Liebert iCOM Service Menu icons224.6 Wiring for Unit-to-Unit Communications—U2U234.6.1 Liebert iCOM U2U Ethernet Network23Table 2 Sample Liebert iCOM network configurations234.6.2 Wiring a Liebert iCOM U2U Network23Small Displays23Large Displays24Wall-Mount Large Display24Combining Large and Small Displays on a U2U Network24Figure 12 U2U network setup diagram25Notes on Wiring for a U2U Network—Refer to Figures 13 and 1526Figure 13 Liebert iCOM wiring—Unit as shipped27Figure 14 Wiring a small display for U2U network operation28Figure 15 Wiring a large display for U2U network operation29Figure 16 Liebert iCOM input-output control board304.7 Entering Network Setup Information31Figure 17 Control board U2U network setup screen31Figure 18 Liebert iCOM display U2U network setup screen314.8 Viewing Multiple Units with a Networked Large Display32Figure 19 Menu tree—Large display, networked325.0 Operation335.1 Single Unit Functions335.1.1 Unit/Fan Control33Start - Stop33Figure 20 Start-stop priority switches33Autorestart34Loss of Power Alarm34Fan Alarm / Fan Protection Settings345.1.2 General Compressor Requirements34Low-Pressure Time Delay34Pump Down—Air Cooled with Condenser Only Units35High Pressure Alarm35Digital Scroll High Temperature355.1.3 Compressor Timing355.2 Control Types365.2.1 Proportional Control365.2.2 PI Control365.2.3 Intelligent Control (Chilled Water Only)376.0 Alarm Descriptions386.1 Standard Alarms386.1.1 Change Filter386.1.2 Compressor Overload386.1.3 High Head Pressure396.1.4 High Humidity396.1.5 High Humidity and Low Humidity (Simultaneously)396.1.6 High Temperature396.1.7 High Temperature and Low Temperature (Simultaneously)396.1.8 Humidifier Problem39Infrared Humidifiers39Steam Generating (Canister) Humidifiers396.1.9 Loss of Air Flow406.1.10 Loss of Power406.1.11 Low Humidity406.1.12 Low Suction Pressure406.1.13 Low Temperature406.1.14 Main Fan Overload406.1.15 Short Cycle406.2 Optional Alarms416.2.1 Loss of Water Flow416.2.2 Smoke Detected416.2.3 Standby GC Pump On416.2.4 Standby Unit On416.2.5 Water Under Floor416.3 Set Alarms—User Menus41Table 3 Set alarms—User Menus417.0 Component Operation and Maintenance427.1 System Testing427.1.1 Environmental Control Functions42Cooling42Heating42Humidification42Dehumidification42Electric Panel42Control Transformer and Fuses43Fan Safety Switch43High-Temp Sensor43Smoke Detector43Water Detection Sensor43Figure 21 Liebert leak detection units43Figure 22 Recommended liquid sensor locations44Table 4 Zone leak detection kit installation scenarios44Remote Shutdown447.2 Filters457.3 Blower Package457.3.1 Fan Impellers and Bearings457.3.2 Belt457.3.3 Air Distribution46Table 5 Recommended free area ft2 (m2) for grilles or perforated panels at output velocities of 550 and 600 fpm (2.8 and 3.1 m/s)467.4 Refrigeration System467.4.1 Suction Pressure46Table 6 Suction pressures - R407c467.4.2 Discharge Pressure47Table 7 Discharge pressures477.4.3 Superheat477.4.4 Thermostatic Expansion Valve47Operation47Adjustment477.4.5 Hot Gas Bypass Valve—Not Available on Digital Scroll Units48Operation—Self-Contained Units48Adjustment487.4.6 Air Cooled Condenser48Checking Refrigerant Charge (Lee–Temp / Flood Back Head Pressure Control)49Figure 23 Outdoor fan/condenser configuration497.4.7 Water/Glycol Cooled Condensers49Coaxial Condenser497.4.8 Motorized Ball Valve—Digital Scroll Compressor50Control50Control Method50Adjustment50Startup50Location50Manual Control507.4.9 Regulating Valve—Scroll Compressor50Standard Valve - 150 psig (1034 kPa) system for 3 & 5 ton units (Johnson Controls Valve) High Pressure Valve - 350 psig (2413 kPa) system for 5 ton units (Johnson Controls Valve)50Figure 24 Johnson Controls valve adjustment51High Pressure Valve - 350 PSIG System (2413 kPa) for 3 Ton Units (Metrex Valve)51Figure 25 Metrex valve adjustment517.4.10 Drycooler Settings52Table 8 Water/glycol system conditions requiring optional settings for aquastats52Table 9 Aquastat settings—two-fan through four-fan drycoolers527.4.11 Compressor Oil53Table 10 Compressor oil types537.5 Compressor Replacement53Before Replacing or Returning a Compressor537.5.1 Compressor Functional Check537.5.2 Standard Scroll Compressor Replacement54Mechanical Failure54Electrical Failure547.5.3 Digital Scroll Compressor Replacement Procedure55Digital Compressor Unloading Solenoid(s)—Models 040, 042, 047, 049, 061 and 072557.6 Facility Fluid and Piping Maintenance for Water and Glycol Systems55Glycol Solution Maintenance557.7 Humidifier567.7.1 Infrared Humidifier56Removing the Pan56Cleaning the Pan56Changing Humidifier Lamps57Figure 26 Infrared humidifier lamps57Autoflush Infrared Humidifier Cleaning System57Autoflush Operation57Autoflush Controls587.7.2 Steam Generating Humidifier58Figure 27 Steam generating humidifier58Operation59Controls59Replacing the Canister60Table 11 Humidifier canister part numbers60Circuit Board Adjustments61Drain Tempering Feature618.0 Troubleshooting62Table 12 Blower troubleshooting62Table 13 Chilled water troubleshooting62Table 14 Compressor and refrigeration system troubleshooting63Table 15 Dehumidification troubleshooting65Table 16 Glycol pump troubleshooting65Table 17 Infrared humidifier troubleshooting65Table 18 Steam generating humidifier troubleshooting66Table 19 Reheat troubleshooting679.0 Monthly Maintenance Inspection Checklist68Filters68Steam Generating Humidifier68Blower Section68Infrared Humidifier68Compressor68Refrigeration Cycle/Section68Air Cooled Condenser (if applicable)68Reheat68Air Distribution Section68Refrigerant Charge6810.0 Semiannual Maintenance Inspection Checklist69Filters69Blower Section69Compressor69Air Cooled Condenser (if applicable)69Water/Glycol Condenser (if applicable)69Glycol Pump69Steam Generating Humidifier69Infrared Humidifier69Refrigeration Cycle/Section69Air Distribution Section69Refrigerant Charge69Electrical Panel69Reheat69Taille: 3,5 MoPages: 72Language: EnglishOuvrir le manuel