Emerson DE, VH, VE, DH manual Select Options, Calibrate Sensors, Show DIP Switches, Select options

Page 17

Advanced Microprocessor Controls Setup

Select Options

The following table lists choices on the Select Options menu. These should match the options installed with your unit and should not need to change during normal operation.

Table 3

Select options

 

 

 

 

 

Option

Selection

 

 

 

Heating

 

Yes or No

 

 

 

Humidifier

 

Yes or No

 

 

Dehumidifier

Yes or No

 

 

Humidifier Pan

Small or Large

 

 

Hot Gas Reheat

Yes or No

 

 

Heat Stages*

2 or 3

 

 

Dehumidification Stages

1 or 2

 

 

 

*If heat stage is set to 2 on a chilled water unit, the reheat 3 output is energized on a call for dehumidification.

Calibrate Sensors

The temperature and humidity sensors can be calibrated by selecting this menu item. “Sensor” shows the actual sensor reading or raw reading. “Calibrated” shows the sensor reading after the calibration offset has been added. The temperature sensor can be calibrated ±5 degrees Fahrenheit and the humidity sensor can be calibrated ±10% RH. When calibrating the humidity sensor, the value shown will always be % RH, even though absolute humidity control may be selected. If absolute humidity control is selected, the Normal Status Display will display the adjusted reading and may not agree with the relative humidity reading displayed while in calibration.

Show DIP Switches

The DIP switch settings can be reviewed from the display panel. Changing the DIP switches requires opening the upper panel for access to the DIP switches on the microprocessor control board.

NOTE

Power must be cycled off, then on from the unit disconnect switch for the control system to update the DIP switch settings (except for switch 8).

Table 4

DIP switch settings

 

 

 

 

DIP

 

 

Switch

 

 

Number

OFF

ON

1

DX Compressor Cool

Chilled Water

 

 

 

2

Electric/Hot Gas Reheat

Hot Water Reheat

 

 

 

3

2 Step DX

4 Step DX

 

 

 

4

No GLYCOOL

GLYCOOL

 

 

 

5

No Dual Cooling

Dual Cooling

 

 

 

6

Not Used

Not Used

 

 

 

7

Delayed Reheat

Dehumidification with Normal Reheat

 

 

 

These selections should match options installed on your unit and should not need to change during normal operation. Switches 1 through 6 are self-explanatory. Switch 7 is described in more detail below. DIP switch 8, not shown above, enables the password feature when set to ON and disables the password feature if set to OFF.

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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

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