Emerson Liebert Challenger With Liebert iCOM Control 3000/ Manuel d'utilisateur Page 1

Precision CoolingFor Business-Critical Continuity™Liebert® Challenger™ 3000/Liebert Challenger ITR™ with Liebert iCOM® ControlOperation & Maintena

Startup42.0 STARTUPBefore beginning startup, make certain that unit was installed according to the instructions in the installation manual, SL-11962.

Startup514. Check for unusual noises and vibration.15. Check all refrigerant and fluid lines for leaks.16. Test all functions of your unit for proper

Operation with iCOM Control63.0 OPERATION WITH ICOM CONTROLThe Liebert iCOM™ control offers the highest capabilities in unit control, communication an

Liebert iCOM Display Components and Functions74.0 LIEBERT ICOM DISPLAY COMPONENTS AND FUNCTIONSThe small and the large display have a common key layou

Liebert iCOM Display Components and Functions8Table 1 Keyboard icons and functionsIconKey Name FunctionOn/Off Key Controls the operational state of th

Liebert iCOM Display Components and Functions9Figure 3 Liebert iCOM default screen symbols4.1 Navigating Through the Liebert iCOM DisplayLiebert iCOM

Liebert iCOM Display Components and Functions10Figure 5 Liebert iCOM default home screen—Simple view4.1.1 Control Interface—Three Main MenusThe Lieber

Liebert iCOM Display Components and Functions114.1.2 Accessing Menus and SettingsViewing DataNo password is required to view data or settings.To view

Liebert iCOM Display Components and Functions124.1.4 Accessing SubmenusTo access the User, Service or Advanced menu, press the Enter or down arrow key

Liebert iCOM Display Components and Functions13Figure 7 Menu tree—Large and small displays, stand-alone or networkedStatus Menu – System View(Large Di

Liebert iCOM Display Components and Functions144.2 Changing Operational SettingsChanges to the Liebert Challenger 3000/Liebert Challenger ITR’s operat

Liebert iCOM Display Components and Functions154.3 Changing Liebert iCOM’s Display SettingsNo password is required to change the way Liebert iCOM disp

Liebert iCOM Display Components and Functions164.4 Graphical Data RecordThe Graphical Data Record charts the average temperature from the return air t

Liebert iCOM Display Components and Functions174.6 Wiring for Unit-to-Unit Communications—U2UThe Liebert Challenger 3000/Liebert Challenger ITR with L

Liebert iCOM Display Components and Functions18Large DisplaysA network switch is required to enable Ethernet communication on one or more cooling unit

Liebert iCOM Display Components and Functions19Figure 12 U2U network setup diagramNetworkSwitchLiebert Challengerwith Small Liebert iCOM DisplayLieber

Liebert iCOM Display Components and Functions20Notes on Wiring for a U2U Network—Refer to Figures 13 and 151. See unit electrical schematic.2. Cable ‘

Liebert iCOM Display Components and Functions21Figure 13 Liebert iCOM wiring—Unit as shippedLiebert IntelliSlotPower SupplyLiebertIntelliSlot 1Liebert

Liebert iCOM Display Components and Functions22Figure 14 Wiring a small display for U2U network operationStandard SmallGraphics Display(Rear View)Lieb

Liebert iCOM Display Components and Functions23Figure 15 Wiring a large display for U2U network operationCrossoverCoupler(See Note 6)Red CrossoverEthe

iTABLE OF CONTENTSIMPORTANT SAFETY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1SAVE T

Liebert iCOM Display Components and Functions24Figure 16 Liebert iCOM input-output control boardP65 P64(RJ-45 Jack)P66P63P61P67

Liebert iCOM Display Components and Functions254.7 Entering Network Setup InformationSetting up a U2U network requires setting a unique IP addresses f

Liebert iCOM Display Components and Functions264.8 Viewing Multiple Units with a Networked Large DisplayWhen you first wake up the control, press the

Operation275.0 OPERATIONThe Liebert iCOM display for your Liebert cooling unit features an easy-to-use, menu-driven liquid crystal display (LCD). All

Operation28AutorestartWhen there is a loss of power to the cooling unit and power comes back, the unit will return to its pre-vious operating status—O

Operation29Pump Down—Air Cooled with Condenser Only UnitsThe Pump Down operation is performed to protect the compressor oil from being diluted with li

Operation30Evaluate the start operation of the unit (with pump down).1. Close LLSV2. Wait for LPS to make or ignore for WSK timeIf LPS is made before

Operation315.2.3 Intelligent Control (Chilled Water Only)The intelligent control operates from a set of general rules that define how the control outp

Alarm Descriptions326.0 ALARM DESCRIPTIONSThe Liebert iCOM will audibly and visually annunciate all enabled alarms. Alarms are wired from Terminal 24

Alarm Descriptions336.1.3 High Head PressureCompressor high head is monitored with a pressure switch. One SPDT pressure switch is used for the compres

ii6.1 Standard Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326.1.1

Alarm Descriptions346.1.9 Loss of Air FlowA differential air pressure switch is used to indicate loss of air flow in Liebert Challenger 3000/Lie-bert

Alarm Descriptions356.2 Optional Alarms6.2.1 Loss of Water FlowAvailable only with 3-way valves and occurs when no water flow is detected in the chill

Component Operation and Maintenance367.0 COMPONENT OPERATION AND MAINTENANCE7.1 System Testing7.1.1 Environmental Control FunctionsThe performance of

Component Operation and Maintenance37Control Transformer and FusesThe control system is divided into four separate circuits. The control voltage circu

Component Operation and Maintenance38Figure 22 Recommended liquid sensor locationsThe zone leak detection kit provides leak detection for a defined zo

Component Operation and Maintenance397.2 FiltersFilters are usually the most neglected item in an environmental control system. To maintain efficient

Component Operation and Maintenance407.3.3 Air DistributionAll unit models are designed for constant volume air delivery. Therefore any unusual restri

Component Operation and Maintenance417.4.2 Discharge PressureDischarge Pressure can be increased or decreased by load conditions or condenser efficien

Component Operation and Maintenance427.4.5 Hot Gas Bypass Valve—Not Available on Digital Scroll UnitsOperation—Self-Contained UnitsThe hot gas bypass

Component Operation and Maintenance43Checking Refrigerant Charge (Lee–Temp/Flood Back Head Pressure Control)The system refrigerant level must be check

iii7.6 Facility Fluid and Piping Maintenance for Water and Glycol Systems . . . . . . . . . . . . . . . . 497.7 Humidifier. . . . . . . . . . . . .

Component Operation and Maintenance447.4.8 Motorized Ball Valve—Digital Scroll CompressorOn water-cooled and glycol-cooled digital scroll units, the d

Component Operation and Maintenance45To raise the head pressure setting, turn the adjusting screw counterclockwise until the desired set-ting is obtai

Component Operation and Maintenance46Manual Flushing—The valve may be flushed by rotating the socket head screw clockwise. This screw must be in the O

Component Operation and Maintenance477.4.11 Compressor OilNOTICERisk of improper compressor lubrication. Can cause compressor and refrigerant system d

Component Operation and Maintenance487.5.2 Standard Scroll Compressor ReplacementInfrequently a fault in the motor insulation may result in a motor bu

Component Operation and Maintenance49Three-phase power must be connected to the unit line voltage terminals in the proper sequence so that the scroll

Component Operation and Maintenance507.7 Humidifier7.7.1 Infrared HumidifierDuring normal humidifier operation, deposits of mineral solids will collec

Component Operation and Maintenance51Changing Humidifier Lamps1. Open disconnect switch.2. Open front panel.3. Remove screws securing line voltage com

Component Operation and Maintenance52Autoflush ControlsUse the LCD display, menu, and keys on the front control panel to program the autoflush control

Component Operation and Maintenance53Operation1. During startup, when the humidity control calls for humidification, the fill valve opens and allows w

ivTABLESTable 1 Keyboard icons and functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Component Operation and Maintenance54Replacing the CanisterOver a period of operation, the humidifier electrodes become coated with mineral solids. Th

Component Operation and Maintenance55Circuit Board AdjustmentsHumidifier operation is governed by the humidifier control board. This board is located

Troubleshooting568.0 TROUBLESHOOTINGUse this section to assist in troubleshooting your unit. Also refer to 6.0 - Alarm Descriptions. Sug-gestions are

Troubleshooting57Table 14 Compressor and refrigeration system troubleshootingSymptom Possible Cause Check or RemedyCompressor will not startPower OffC

Troubleshooting58FloodingDefective or improperly set expansion valveIncrease superheat or replace valveEvaporator fan motor or beltCorrect problem or

Troubleshooting59Table 15 Dehumidification troubleshootingSymptom Possible Cause Check or RemedyNo dehumidificationControl not calling for dehumidific

Troubleshooting60Table 18 Steam generating humidifier troubleshootingSymptom Possible Cause Check or RemedyFalse canister full indication FoamingCheck

Troubleshooting61Excessive arcing in the canisterDrain valve clogged or defectiveVerify that drain valve operates freely when activated. Clean valve a

Monthly Maintenance Inspection Checklist629.0 MONTHLY MAINTENANCE INSPECTION CHECKLISTDate:_______________________________________ Prepared by:_______

Semiannual Maintenance Inspection Checklist6310.0 SEMIANNUAL MAINTENANCE INSPECTION CHECKLISTDate:________________________________________ Prepared by

1IMPORTANT SAFETY INSTRUCTIONSSAVE THESE INSTRUCTIONSThis manual contains important safety instructions that should be followed during the installatio

Semiannual Maintenance Inspection Checklist64

Ensuring The High AvailabilityOf Mission-Critical Data And Applications.Emerson Network Power, the global leader in enabling business-criticalcontinui

2NOTICERisk of leaking water. Can cause equipment and building damage.This unit requires a water drain connection. It may also require an external wat

Introduction31.0 INTRODUCTION1.1 System DescriptionsThe Liebert Challenger 3000™ and Liebert Challenger ITR™ Precision Cooling systems are available i