Liebert 8 Tons, 50 & 60Hz user manual Drycooler Evaporator

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Site Preparation and Installation

Figure 1 System configurations—air cooled systems

Evaporator	Prop Fan
	Condensing Unit

Evaporator

Centrifugal Fan

Condensing Unit

Figure 2 System Configurations—water/glycol systems

Cooling

Tower

Evaporator

Water/Glycol

Condensing Unit

WATER-COOLED SYSTEMS

GLYCOL-COOLED SYSTEMS

Drycooler

Evaporator

Water/Glycol

Condensing Unit

6

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Contents Liebert Mini-Mate2 Page Table of Contents Microprocessor Control System Performance Microprocessor ControlsAlarms System OPERATION, TESTING, and MaintenanceFigures Table iii Heat rejection matchup 60 Hz Table iv Heat rejection matchup 50 HzPage Standard Product Features Optional Equipment Ancillary Ship Loose Accessories Room Preparation Installation ConsiderationsInput Voltage Entering Fluid Temperature Min Application limits, evaporator and chilled-water unitsLocation Considerations Drycooler Evaporator Equipment Inspection upon receipt System WeightsUnit weights Locking nut Hex nut Installing the Evaporator or Chilled-Water UnitsNylock Close Coupled Installations Nut Clamps are for shipping purposes onlyEvaporator external static pressure 60 at 3750 CFM 6371 CMH Evaporator Air Distribution Filter BoxConnections for Ducted Systems Hp Motor std Hp Motor opt Turns External OpenDrain installation Piping Connections and Coolant Requirements Drain LineCondensate Pump Humidifier Water Supply LineGeneral arrangement diagram chilled-water systems Chilled-Water Piping-Chilled-water Systems OnlyEquivalent Suction Feet Circuit Liquid Line Refrigerant R-22 PipingRecommended refrigerant line sizes Ton unit refrigerant charge Total refrigerant = Units and LinesQuick Connect Fittings Line charges field pipingOptional Filter BOX Power Connections Electrical Connections, Evaporator or Chilled-Water UnitEvaporator unit electrical connections Front of UnitConsiderations for Specific Applications DuctingGeneral Considerations Control Connections Piping ConnectionsElectrical Connections Condensing Unit DPN000248Rev1 Heat rejection connection. Field Outdoor Air-Cooled Condensing Unit Installation Electrical ConnectionsLow voltage Electric service connectionHigh voltage Earth ground connectionFootprint Dimensions 292 11-1/2152 Regulating Valve Water/Glycol Piping ConsiderationsCondensing Unit Fluid Requirements Indoor water/glycol condensing unit dimensional data Site Preparation and Installation Two circuits provided. Single circuit shown Optional Equipment Piping Optional free cooling coil 3-way valve on water/glycol unitsOptional free cooling coil 3-way valve on air-cooled units Checklist for Completed Installation Feature Overview Wall boxMain Menu Menu Default setpoints and allowable ranges Active AlarmsAlarm History SetpointsTime Setup OperationRestart Time Delay DateHumidity Control Method Show DIP Switch10.2 C/F Degrees Lead CompressorSetup functions, default values and allowable ranges Change PasswordsAlarm Enable Calibrate SensorsCustom Alarms Alarm Time DelayCommon Alarm Enable Alarm default time delaysLCD Display Contrast Equipment Options SwitchesCustom Text Nonvolatile MemoryTest Inputs Run DiagnosticsTest Outputs Test Micro TB3-3 Connection to Terminal #3 Wallbox TB3-1 TB3-2 TB3-3 TB4-4 Wall Box DIP SwitchesTB3-4 Connection to Terminal #4 Wallbox TB3-2 Connection to Terminal #2 WallboxReheat Control Type Response Proportional ControlCooling Communications Load Control FeaturesDehumidification / Humidification Percent Required Humidification Operation System ActivationHigh Head Pressure Alarms Definitions and TroubleshootingCustom Alarms Air-Cooled SystemsHigh-Water Alarm TemperatureHumidifier Problem Alarm Loss of PowerOptional/Custom Alarms Change FilterSystem Testing Maintenance and Component Operation Discharge Pressure Refrigeration SystemSuction Pressure Thermostatic Expansion ValveHot Gas Bypass Optional Glycol Solution MaintenanceRegulating Valves Water/Glycol Condensing Units Replacement Procedures Steam Generating Humidifier Operation Procedures Replacing the Humidifier Canister Circuit Board AdjustmentsHumidifier control board DIP switch settings AmpsMaintenance Inspection Checklist Troubleshooting Display freezes Symptom Possible Cause Check or Remedy Cooling cycle tooShort Control padsTroubleshooting Troubleshooting Troubleshooting Page Tin NetIti That