Emerson DE, VH, VE, DH manual Alarm Descriptions and Solutions, Temperature Control

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5.0 RESPONSE BY CONTROL TYPE—ADVANCEDMICROPROCESSOR CONTROLS . . . . . . . . . . .33

5.1 Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.1.1 Cooling/Heating Required, in Percent (%) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 5.1.2 Response to Control Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 5.1.3 Cooling Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 5.1.4 Heating Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.2 Humidity Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.2.1 Dehumidification/Humidification Required, in Percent (%) . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.2.2 Control Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.2.3 Dehumidification Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.2.4 Humidification Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

5.2.5 Control Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

5.3 Load Control Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.3.1 Short Cycle Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.3.2 Sequential Load Activation Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.3.3 Compressor Sequencing Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.4 Analog Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

5.4.1 Connecting the Analog Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

5.4.2 Water Detection Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.5 Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.5.1 Monitor functions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.5.2 View/Change Functions:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

6.0 ALARM DESCRIPTIONS AND SOLUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

6.1 Standard Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

6.1.1 Change Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

6.1.2 Compressor Overload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

6.1.3 Custom Alarms (Only With Advanced Controls) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.1.4 High Head Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.1.5 High Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.1.6 High Humidity and Low Humidity (Simultaneously) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.1.7 High Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.1.8 High Temperature and Low Temperature (Simultaneously) . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.1.9 Humidifier Problem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

6.1.10 Loss of Air Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.1.11 Loss of Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.1.12 Low Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.1.13 Low Suction Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.1.14 Low Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.1.15 Main Fan Overload. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.1.16 Short Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

6.2 Optional/Custom Alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.2.1 Loss of Water Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.2.2 Smoke Detected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.2.3 Standby GC Pump On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.2.4 Standby Unit On. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

6.2.5 Water Under Floor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

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Contents Liebert Deluxe System/3 Page Table of Contents Main Menu AG-Run Diagnostics Temperature Control Alarm Descriptions and SolutionsSystem Testing Figures Page Introduction System DescriptionDual Source Cooling Systems Chilled Water SystemsGlycool Chilled Glycol Cooling Systems Additional Considerations for Upflow Units Initial START-UP ProcedureDisplay the Main Menu-AM Control Advanced Microprocessor Controls SetupBasics Advanced microprocessor AM control menu Active Alarms Main Menu AM-Status/Alarm DataAlarm History Log Operating StatusSetup System Selection Main Menu AM-Setpoints/SetupDefault control and alarm setpoints Analog SensorsFunction Default Range Setup OperationSetup functions and factory default values DIP switch settings Show DIP SwitchesSelect Options Calibrate SensorsSelect Control Type Setup AlarmsAlarm Default Delay seconds Alarm default time delayHumidity Control Method Standard Alarm MessagesAnalog Setup Set Status Display Run DiagnosticsCalibrate Actuator Show InputsMain Menu AM-Date and Time Change PasswordsTest Outputs Test Control BoardControl Circuit Board Load Control FeaturesMain Menu AM-Status Display Communications DIP SwitchesNonvolatile Memory Control OutputsView/Change Functions Monitor functionsAdvanced microprocessor with graphics control panel Advanced Microprocessor with Graphics Control SetupAdvanced microprocessor with graphics AG control menu Main Menu AG-Status Display Main Menu AG-View/Set AlarmsDisplay the Main Menu-AG Control Alarm Seconds Default Time DelayStandard Custom Alarm Messages Set Up Custom AlarmsSetup Water Detect Floor Plan Installation-LT750 DIP Switch SettingsMain Menu AG-View/Set Control Setpoints Main Menu AG-Setup SystemMain Menu AG-Operating Status Auto Restart Delay Cold Start DelayDefault Settings and Ranges IR Flush Overfill infrared humidifiers onlySelect Control Algorithm Calibrate Valve ActuatorSelect Humidity Sensing Mode Main Menu AG-Run DiagnosticsShow Inputs Main Menu AG-Plot Graphs Dehumidification with Normal or Delayed ReheatMain Menu AG-Date and Time Main Menu AG-Analog/Digital Inputs Main Menu AG-View Run Hours Log Set Up Digital InputsRead Digital Inputs View 24 Hour Run Time HistoryControl Circuit Board On/Off Status Time View Only Silence Alarm Response by Control TYPE-ADVANCED Microprocessor Controls Temperature ControlDual Cooling Source Glycool CoolingChilled Water Cooling Heating Operation Electric ReheatHot Water/Steam Heat Humidity ControlDehumidification/Humidification Required, in Percent % Control Types Proportional ControlHumidification Operation System Activation Dual Cooling Source DehumidificationChilled Water Dehumidification Suggested System Tuning Procedure Intelligent Control Load Control Features Analog Sensors Connecting the Analog SensorsChanging factory-set sensor inputs Additional connections available after unit deliveryPhysical Connections SetupWater Detection Display Calibration View/Change Functions Alarm Descriptions and Solutions Standard AlarmsChange Filter Compressor OverloadHigh Temperature Custom Alarms Only With Advanced ControlsHigh Temperature and Low Temperature Simultaneously Humidifier Problem Infrared HumidifiersLow Temperature Loss of PowerLoss of Air Flow Low HumidityOptional/Custom Alarms Component Operation and MAINTENANCE, Checks and Adjustments System TestingEnvironmental Control Functions Proportional Heating/Cooling/ DehumidificationElectric Panel Fan Safety SwitchControl Transformer and Fuses FirestatBlower Package FiltersFan Impellers and Bearings BeltsCompressor Oil Level Refrigeration SystemElectronic Variable Speed Drive Inverter Discharge Pressure Suction PressureSuction Superheat Thermostatic Expansion Valve OperationHot Gas Bypass Valve Operation AdjustmentAir Cooled Condenser Outdoor fan/condenser configurationTesting Function of Valve Adjustment Johnson Controls/Penn Johnson valvesGlycol Solution Maintenance Water/Glycol Cooled Condensers Shell and Tube CondensersElectrical Failure Compressor ReplacementMechanical Failure Infrared Humidifier Compressor Replacement ProcedureHumidifier Changing Humidifier Lamps Autoflush Infrared Humidifier Cleaning SystemAutoflush Operation Humidifier lampsSteam generating humidifier Steam Generating HumidifierReplacing the Canister ControlsPriority Name LED Indication Description Faults-canister generator humidifierHumidifier canister part numbers Steam generating humidifier capacity Circuit Board AdjustmentsCapacity Hz Models Lbs/hr kg/hrVoltage AMP Set Pt Electric ReheatUnit Rated Rated Values Voltage Capacity Blower troubleshooting TroubleshootingChilled water troubleshooting Symptom Possible Cause Check or RemedyCompressor and refrigeration system troubleshooting Compressor and refrigeration system troubleshooting Glycol pumps troubleshooting Dehumidification troubleshootingAdjustments on Humidifier-steam generator troubleshootingReheat troubleshooting Humidifier-infrared troubleshootingMaintenance Inspection CHECKLIST-MONTHLY Maintenance Inspection CHECKLIST-SEMIANNUAL Iti Ne tTi n That

VE, DH, VH, DE specifications

Emerson is a well-known brand in the field of automation solutions, offering a range of products that cater to various industries. Among its diverse portfolio, Emerson’s products like DE (Digital Electronics), VH (Variable Frequency Drives), DH (Distributed Control Systems), and VE (Valve Positioners) stand out for their advanced features, cutting-edge technologies, and unique characteristics.

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In summary, Emerson's DE, VH, DH, and VE offerings embody the latest innovations in automation technology. Their main features, including digital communication, energy efficiency, scalability, and precision control, cater to the diverse demands of modern industries. With these products, Emerson not only enhances operational efficiency but also paves the way for intelligent automation solutions that are crucial for the future of industrial processes.