Emerson Liebert iCOM Manuel d'utilisateur Page 1

Precision CoolingFor Business-Critical Continuity™Liebert® iCOM™User Manual - Intelligent Communications & Monitoring

Liebert iCOM Display Components and Functions4Figure 3 Status menu, large display, graphical viewFigure 4 Liebert iCOM default screen symbolsEvaporato

Liebert iCOM Display Components and Functions52.1 Navigating Through the Liebert iCOM MenusLiebert iCOM shows icons and text for monitoring and contro

Liebert iCOM Display Components and Functions62.1.3 Entering a PasswordTo change the value of a parameter in a menu, you must first enter the password

Liebert iCOM Display Components and Functions7Figure 6 Menu tree—Large display, stand-aloneStatus Menu – System ViewStatus MenuUnit 1 ViewUser MenuUni

Liebert iCOM Display Components and Functions82.1.4 Viewing Multiple Units with a Networked Large DisplayWhen you first wake up the control, press the

Liebert iCOM Display Components and Functions9Figure 8 User menu iconsTable 2 User menu iconsIcon NameDescriptionAvailable On DisplaySetpointsView and

Liebert iCOM Display Components and Functions10Sleep ModeAllows setback settings for non-peak operationSmall & LargeService Contact InfoContains k

Liebert iCOM Display Components and Functions11Figure 9 Service menu iconsTable 3 Service menu iconsIcon NameDescriptionAvailable OnDisplaySetpoints T

Operation123.0 OPERATIONThe Liebert iCOM display for your Liebert cooling unit features an easy-to-use, menu-driven liquid crystal display (LCD). All

Operation13AutorestartWhen 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

Operation143.1.3 General Compressor RequirementsLow-Pressure Time DelayWhen the compressor starts, the low-pressure input is ignored for a selected pe

Operation15Digital Scroll High TemperatureA protective maximum operating compressor temperature limit is imposed on units with digital scroll compress

Operation163.2 Motorized Ball Valve in Digital Scroll UnitsOn digital scroll units, discharge pressure is controlled by a motorized ball valve. During

Operation173.3 Temperature Control—Single Source Cooling (No Extra Cooling Coil)3.3.1 Temperature Proportional Band The control uses the temperature p

Operation183.3.2 Compressor ControlDepending on the type of Liebert air conditioning unit you have your unit may contain one or two compressors with o

Operation19Two Compressors With Unloaders—Four-StepThe first two-step compressor is started unloaded at 33% calculated output from the temperature pro

Operation20Digital Scroll CompressorsA compressor with a suction cutoff unloader can only modulate its capacity between two distinct lev-els: fully lo

Operation213.3.3 Chilled Water ControlThe chilled water control valve is adjusted proportionally as the temperature control varies the requirement for

Operation22The Value setting is the factory default setting on free-cooling and dual cooling units. If the tempera-ture difference between the second

Operation23GLYCOOL™ Cooling—Free-CoolingWhen GLYCOOL cooling is available, the temperature control will calculate a total cooling require-ment of 200%

iTABLE OF CONTENTS1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation24Figure 19 Three-stage heating0%Heating65 70Heat 3On½ Dead-band66 67 68 69Heat 2OnHeat 1OnHeat 3OffHeat 2OffHeat 1Off-100 %Heating½ Proporti

Operation253.5.2 SCR ReheatSCR reheat is a type of electric reheat that provides tighter temperature control than staged electric reheat. SCR reheat c

Operation26Standard ModeIn Standard mode, the SCR reheat operates only when the Temperature Proportional Band calls for heating. SCR reheat output is

Operation273.6 Humidity ControlThe control uses the humidity proportional band to determine which operation to perform (dehumidi-fication/humidificati

Operation283.6.1 HumidificationInfrared HumidifierThere are two types of infrared humidifiers: small pan (IFS) and large pan (IFL). The operating mode

Operation293.6.2 DehumidificationThe Dehumidification Enable parameter (Service Menu, Options Setup) allows for enabling/disabling the dehumidificatio

Operation30Reheat During DehumidificationHot gas reheat or hot water reheat will start as described in 3.5 - Temperature Control—Reheat, when the temp

Operation31Intelligent – If Intelligent Control is selected, the return air temperature/humidity is controlled at or near the setpoint. The percent te

Operation323.7.3 Supply Limit—OptionalChilled water units may be ordered with an additional sensor for monitoring the supply air tempera-ture. This se

Operation333.7.5 User Inputs / Customer InputsThe user can connect and specify up to four inputs depending on unit configuration. The user inputs/cust

ii3.9 Next Maintenance Calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373.9.1 Calculatio

Operation343.7.6 Event Types and PropertiesLiebert iCOM events are used to inform the user of cooling unit operational status. All events are recorded

Operation35Table 8 Possible event settings—some events not available in all unitsEventInternal Delay(Before Action Occurs)Default Delay / Selectable(B

Operation363.8 POSSIBLE EVENT NOTIFICATIONSTable 9 lists alarms and warnings that may occur in a cooling unit. When any of these occur, they will appe

Operation373.9 Next Maintenance CalculationThe next maintenance calculation, as well as the included diagnostics feature, will help run the cool-ing u

Operation38Parameters for Next Maintenance CalculationGeneral Maintenance Settings• Maintenance Frequency—can be set as one to 12 months or to zero, w

Teamwork394.0 TEAMWORKUnit-2-Unit (U2U) Communications via a private network will allow the following functions to be placed into operation when the r

Teamwork40The number of available units is calculated like:• In non-standby configuration: all units with fan on• In typical standby function (no casc

Teamwork414.1.4 Teamwork Mode 2Teamwork Mode 2 is designed to prevent units within a group from working against each other or “fighting.” It is best a

Installing a Liebert iCOM Unit-to-Unit Network425.0 INSTALLING A LIEBERT ICOM UNIT-TO-UNIT NETWORKConnecting multiple Liebert iCOM-controlled cooling

Installing a Liebert iCOM Unit-to-Unit Network435.3 Wiring for Unit-to-Unit Communications—U2UCooling units come from the factory-wired for stand-alon

iiiFIGURESFigure 1 Liebert iCOM components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing a Liebert iCOM Unit-to-Unit Network445.3.1 Wiring a Liebert iCOM U2U NetworkSmall DisplaysTwo cooling units, each with a small display: To

Installing a Liebert iCOM Unit-to-Unit Network45Figure 25 Wiring a small display for stand-alone operationFigure 26 Wiring a small display for U2U net

Installing a Liebert iCOM Unit-to-Unit Network46Figure 27 Wiring a large display for stand-alone operationFigure 28 Wiring a large display for U2U net

Installing a Liebert iCOM Unit-to-Unit Network47Figure 29 Liebert iCOM input-output control boardLiebert vNSAThe Liebert vNSA is designed to connect m

Installing a Liebert iCOM Unit-to-Unit Network48Figure 30 Liebert vNSA with optional remote large display5.4 External Communications—Building Manageme

Mounting a Large Display on a Wall496.0 MOUNTING A LARGE DISPLAY ON A WALL6.0.1 Location ConsiderationsConsider these factors before beginning work on

Mounting a Large Display on a Wall50Figure 31 Liebert iCOM display dimensionsRev. 01.92" (49mm) 4.17"(106mm)4.13"(105mm)PrimaryMounting

User Menu Parameters517.0 USER MENU PARAMETERSUser menus report general cooling unit operations and status. The password for the user menu is 1490.The

User Menu Parameters52Table 16 Set alarms parametersFunctionRead/WriteRangeImperial (metric)Large Display Small DisplayPage 1 of 1Password PASSWORD W

User Menu Parameters53Active AlarmsPermits viewing all current, active alarms.Daily Low Humidity Lo Humi R 20-80%Daily Low HumidityLo Hu HLo Hu MLo Hu

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

User Menu Parameters54Table 20 Total run hours parametersFunctionRead/WriteRangeImperial (metric)Large Display Small DisplayPage 1 of 1Actual Hours /

User Menu Parameters55Timer Mode Type TIME TYP W System Off, DeadBandDead Band DEADBAND W 4-27°F (2-15°C)Table 22 Service contacts parametersFunctionR

Service Menu Parameters568.0 SERVICE MENU PARAMETERSService menus allow customized settings for site operations. The password for service menu parame-

Service Menu Parameters57Unit Diary—Large Display OnlyShows all entered program changes and maintenance performed on the unit.VSD Setpoint VSD SET W 0

Service Menu Parameters58See 3.9.1 - Calculation of Next Maintenance and Diagnostics for details on these menus.Table 25 Standby settings / lead-lag p

Service Menu Parameters59Compressor1 Settings (Page 3 of 8)Password PASSWORD W -Number of Starts STARTS W 0-32000Run Hours RUN HRS W 0-32000Average Ru

Service Menu Parameters60El. Heater 2 Settings (Page 6 of 8) WELLNESS HEAT2Password PASSWORD W -Number of Starts STARTS W 0-32000Run Hours RUN HRS W 0

Service Menu Parameters61Table 27 Diagnostics / service mode parametersFunctionRead/WriteRangeImperial (metric)Large Display Small DisplayPage 1 of 7P

Service Menu Parameters62Password PASSWORD W -Alarm Relay ALM REL W Off, OnFC Relay FC REL W Off, On3P Actuator Open 3P OPEN W Off, On3P Actuator Clos

Service Menu Parameters63Page 7of 7Status Humidifier Problem HUM PROB R OK, ActStatus DT1 (Outdoor/Glycol) DT1 R OK, ActStatus DT2 (Glycol/Room) DT2 R

Introduction11.0 INTRODUCTIONThe Liebert iCOM™ control offers the highest capabilities in unit control, communication and moni-toring of Liebert missi

Service Menu Parameters64Page 2 of 7Password PASSWORD W -Customer Input 1CUST IN1 W SmokeWater AlarmC PMP AlarmFlow AlarmStdby G PmpStdby UnitC-Input

Service Menu Parameters65HIGH TEMP SENSOR A HTA W 0 - 9999 secLOW TEMP SENSOR A LTA W 0 - 9999 secHIGH HUM SENSOR A HHA W 0 - 9999 secLOW HUM SENSOR A

Service Menu Parameters66ENABLE - DISAB - - -COMP 1 OVERLOAD OL1 W Disabled, EnabledCOMP 2 OVERLOAD OL2 W Disabled, EnabledCOMP 1 HIGH PRESSURE HP1 W

Service Menu Parameters67COND PUMP-HIGH WATER CPH W Disabled, EnabledLOSS OF FLOW LOF W Disabled, EnabledSTBY GLYCOL PUMP ON SGP W Disabled, EnabledST

Service Menu Parameters68REHEAT LOCKOUT RL W Disabled, EnabledHUMIDIFIER LOCKOUT HL W Disabled, EnabledFC LOCKOUT FCL W Disabled, EnabledCOMPRESSOR(S)

Service Menu Parameters69TYPE -- -COMP 1 SHORT CYCLE SC1 W MSG, WRN, ALMCOMP 2 SHORT CYCLE SC2 W MSG, WRN, ALMNO POWER NOP W MSG, WRN, ALMCONDENSER 1

Service Menu Parameters70Freecool Sensor PTC or NTC FC SNSR W PTC, NTCFreecool Sensor FC SNSR W ±18°F (±9.9°C)Calibrated Freecool Sensor CAL FC R 4-11

Service Menu Parameters71Netmask — W Netmask RangeGateway — W Gateway RangeMAC — R MAC RangeU2U Protocol — W GBPU2U Address — W 33-64U2U Group — W 1-9

Service Menu Parameters72Netmask W Netmask RangeGateway W Gateway RangeMAC R MAC RangeU2U Protocol W GBPU2U Address W 1-32U2U Group W 1-99Bootloader V

Service Menu Parameters73Table 32 Options setup parametersFunctionRead/WriteRangeImperial (metric)Large Display Small DisplayPage 1 of 3Password PASSW

Liebert iCOM Display Components and Functions22.0 LIEBERT ICOM DISPLAY COMPONENTS AND FUNCTIONSThe small and the large display have a common key layou

Service Menu Parameters74Table 33 Service contact info parametersFunctionRead/WriteRangeImperial (metric)Large Display Small DisplayPage 1 of 1Passwor

Service Menu Parameters75Notes

Service Menu Parameters76

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

Liebert iCOM Display Components and Functions3Table 1 Keyboard icons and functionsIcon Key Name FunctionOn/Off Key Controls the operational state of t