Emerson VE, VH Main Menu AM-Status/Alarm Data, Active Alarms, Operating Status, Alarm History Log

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Advanced Microprocessor Controls Setup

3.3Main Menu (AM)—Status/Alarm Data

Selecting STATUS/ALARM DATA from the Main Menu will display the following selections:

ACTIVE ALARMS OPERATING STATUS ALARM HISTORY LOG RUN HOURS LOG ANALOG SENSORS

3.3.1Active Alarms

This screen, a submenu of Status/Alarm Data, displays any active alarm. The alarms are numbered, #1 being the most recent. If there are no active alarms, then “NO ALARMS PRESENT” will be dis- played.

3.3.2Operating Status

The Operating Status submenu of Status/Alarm Data informs the user what the control is calling for the system to do.

NOTE

There may be some time lapse before a specific component matches the displayed number.

For example: The display indicates the chilled water valve is 68% open. On a new call for cooling, it takes several seconds for the valve to travel from fully closed to 68% open. So when the display reads 68%, it may take a few seconds for the valve to actually open 68%. Also, if the display indicates a com- pressor is operating but the compressor has not turned on yet, it may be off because of the short cycle control (see 5.3.1 - Short Cycle Control).

3.3.3Alarm History Log

The Alarm History Log, submenu of Status/Alarm Data, employs nonvolatile memory to retain the unit’s 10 most recent alarms along with the date and time each occurred. The first alarm in the His- tory Log is the most recent, and the tenth is the oldest. If the alarm history is full—showing 10 alarms—and a new alarm occurs, the oldest is lost and the newest is saved, becoming the first in the list in alarm history location 1. The rest are moved down the list by one position—the second alarm becomes the third and so on. The Alarm History Log on a new unit may show the results of factory testing. Check the unit delivery date to see if this is the case.

3.3.4Run Hours Log

The total operating hours of all major components in the unit can be monitored from this display, a submenu of Status/Alarm Data. The information is retained in nonvolatile memory. Run times are available for the following:

C1: compressor 1

C2: compressor 2

GLYCOOLCoil (or Dual Cool Coil)

Fan

HUM: humidifier

RH1: reheat 1 (or Hot Water Reheat)

RH2: reheat 2

RH3: reheat 3

CW: Chilled Water Coil

The component run hours for each individual component can be reset by selecting the run hours dis- play screen for the desired component, then pressing ENTER within five (5) minutes of applying power to the control. The user will then be prompted to press ENTER to clear the selected compo- nent's run hours.

NOTE

Run hours for a component should only be reset when the component has been replaced.

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Contents Liebert Deluxe System/3 Page Table of Contents Main Menu AG-Run Diagnostics Alarm Descriptions and Solutions Temperature ControlSystem Testing Figures Page System Description IntroductionDual Source Cooling Systems Chilled Water SystemsGlycool Chilled Glycol Cooling Systems Initial START-UP Procedure Additional Considerations for Upflow UnitsDisplay the Main Menu-AM Control Advanced Microprocessor Controls SetupBasics Advanced microprocessor AM control menu Alarm History Log Main Menu AM-Status/Alarm DataActive Alarms Operating StatusDefault control and alarm setpoints Main Menu AM-Setpoints/SetupSetup System Selection Analog SensorsFunction Default Range Setup OperationSetup functions and factory default values Select Options Show DIP SwitchesDIP switch settings Calibrate SensorsSetup Alarms Select Control TypeAlarm default time delay Alarm Default Delay secondsHumidity Control Method Standard Alarm MessagesAnalog Setup Calibrate Actuator Run DiagnosticsSet Status Display Show InputsTest Outputs Change PasswordsMain Menu AM-Date and Time Test Control BoardControl Circuit Board Load Control FeaturesMain Menu AM-Status Display Nonvolatile Memory DIP SwitchesCommunications Control OutputsMonitor functions View/Change FunctionsAdvanced Microprocessor with Graphics Control Setup Advanced microprocessor with graphics control panelAdvanced microprocessor with graphics AG control menu Main Menu AG-Status Display Main Menu AG-View/Set AlarmsDisplay the Main Menu-AG Control Default Time Delay Alarm SecondsSetup Water Detect Floor Plan Set Up Custom AlarmsStandard Custom Alarm Messages Installation-LT750 DIP Switch SettingsMain Menu AG-View/Set Control Setpoints Main Menu AG-Setup SystemMain Menu AG-Operating Status Default Settings and Ranges Cold Start DelayAuto Restart Delay IR Flush Overfill infrared humidifiers onlyCalibrate Valve Actuator Select Control AlgorithmMain Menu AG-Run Diagnostics Select Humidity Sensing ModeShow Inputs Main Menu AG-Plot Graphs Dehumidification with Normal or Delayed ReheatMain Menu AG-Date and Time Main Menu AG-Analog/Digital Inputs Read Digital Inputs Set Up Digital InputsMain Menu AG-View Run Hours Log View 24 Hour Run Time HistoryControl Circuit Board On/Off Status Time View Only Silence Alarm Temperature Control Response by Control TYPE-ADVANCED Microprocessor ControlsChilled Water Cooling Glycool CoolingDual Cooling Source Heating Operation Electric ReheatDehumidification/Humidification Required, in Percent % Humidity ControlHot Water/Steam Heat Control Types Proportional ControlHumidification Operation System Activation Dual Cooling Source DehumidificationChilled Water Dehumidification Suggested System Tuning Procedure Intelligent Control Load Control Features Changing factory-set sensor inputs Connecting the Analog SensorsAnalog Sensors Additional connections available after unit deliveryPhysical Connections SetupWater Detection Display Calibration View/Change Functions Change Filter Standard AlarmsAlarm Descriptions and Solutions Compressor OverloadHigh Temperature and Low Temperature Simultaneously Custom Alarms Only With Advanced ControlsHigh Temperature Humidifier Problem Infrared HumidifiersLoss of Air Flow Loss of PowerLow Temperature Low HumidityOptional/Custom Alarms Environmental Control Functions System TestingComponent Operation and MAINTENANCE, Checks and Adjustments Proportional Heating/Cooling/ DehumidificationControl Transformer and Fuses Fan Safety SwitchElectric Panel FirestatFan Impellers and Bearings FiltersBlower Package BeltsCompressor Oil Level Refrigeration SystemElectronic Variable Speed Drive Inverter Suction Superheat Suction PressureDischarge Pressure Thermostatic Expansion Valve OperationAdjustment Hot Gas Bypass Valve OperationOutdoor fan/condenser configuration Air Cooled CondenserGlycol Solution Maintenance Adjustment Johnson Controls/Penn Johnson valvesTesting Function of Valve Water/Glycol Cooled Condensers Shell and Tube CondensersElectrical Failure Compressor ReplacementMechanical Failure Infrared Humidifier Compressor Replacement ProcedureHumidifier Autoflush Operation Autoflush Infrared Humidifier Cleaning SystemChanging Humidifier Lamps Humidifier lampsSteam Generating Humidifier Steam generating humidifierControls Replacing the CanisterPriority Name LED Indication Description Faults-canister generator humidifierHumidifier canister part numbers Capacity Circuit Board AdjustmentsSteam generating humidifier capacity Hz Models Lbs/hr kg/hrVoltage AMP Set Pt Electric ReheatUnit Rated Rated Values Voltage Capacity Chilled water troubleshooting TroubleshootingBlower troubleshooting Symptom Possible Cause Check or RemedyCompressor and refrigeration system troubleshooting Compressor and refrigeration system troubleshooting Dehumidification troubleshooting Glycol pumps troubleshootingHumidifier-steam generator troubleshooting Adjustments onHumidifier-infrared troubleshooting Reheat troubleshootingMaintenance Inspection CHECKLIST-MONTHLY Maintenance Inspection CHECKLIST-SEMIANNUAL Ti n Ne tIti That

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