Liebert 8 Tons, 50 & 60Hz user manual Indoor water/glycol condensing unit dimensional data

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Site Preparation and Installation

Figure 18 Indoor water/glycol condensing unit dimensional data

1. 24V GND System 1

2. 24V Supply System 1

3.High-Pressure Alarm System 1

4.Hot Gas Bypass Connection System 1 (only on units with hot gas bypass. If no hot gas

bypass, connection is provided in the evaporator module. Connect wire 4 and wire 2 to the 24V supply).

5.24V GND System 2

6.24V Supply System 2

7. High-Pressure Alarm System 2

8. Hot Gas Bypass Connection System 2 (only on units with hot gas bypass. If no hot gas bypass, connection is provided in the evaporator module. Connect wire 8 and wire 6 to the 24V supply).

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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 Installation Considerations Input Voltage Entering Fluid Temperature MinRoom Preparation Application limits, evaporator and chilled-water unitsLocation Considerations Drycooler Evaporator System Weights Unit weightsEquipment Inspection upon receipt Installing the Evaporator or Chilled-Water Units NylockLocking nut Hex nut Close Coupled Installations Nut Clamps are for shipping purposes onlyEvaporator Air Distribution Filter Box Connections for Ducted SystemsEvaporator external static pressure 60 at 3750 CFM 6371 CMH 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 OnlyRefrigerant R-22 Piping Recommended refrigerant line sizesEquivalent Suction Feet Circuit Liquid Line Total refrigerant = Units and Lines Quick Connect FittingsTon unit refrigerant charge Line charges field pipingOptional Filter BOX Power Connections Electrical Connections, Evaporator or Chilled-Water UnitEvaporator unit electrical connections Front of UnitDucting General ConsiderationsConsiderations for Specific Applications Piping Connections Electrical Connections Condensing UnitControl Connections DPN000248Rev1 Heat rejection connection. Field Outdoor Air-Cooled Condensing Unit Installation Electrical ConnectionsElectric service connection High voltageLow voltage Earth ground connectionFootprint Dimensions 11-1/2 152292 Water/Glycol Piping Considerations Condensing Unit Fluid RequirementsRegulating Valve 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 Active Alarms Alarm HistoryDefault setpoints and allowable ranges SetpointsSetup Operation Restart Time DelayTime DateShow DIP Switch 10.2 C/F DegreesHumidity Control Method Lead CompressorChange Passwords Alarm EnableSetup functions, default values and allowable ranges Calibrate SensorsAlarm Time Delay Common Alarm EnableCustom Alarms Alarm default time delaysEquipment Options Switches Custom TextLCD Display Contrast Nonvolatile MemoryRun Diagnostics Test OutputsTest Inputs Test Micro TB3-1 TB3-2 TB3-3 TB4-4 Wall Box DIP Switches TB3-4 Connection to Terminal #4 WallboxTB3-3 Connection to Terminal #3 Wallbox TB3-2 Connection to Terminal #2 WallboxControl Type Response Proportional Control CoolingReheat Load Control Features Dehumidification / Humidification Percent RequiredCommunications Humidification Operation System ActivationAlarms Definitions and Troubleshooting Custom AlarmsHigh Head Pressure Air-Cooled SystemsTemperature Humidifier Problem AlarmHigh-Water Alarm Loss of PowerOptional/Custom Alarms Change FilterSystem Testing Maintenance and Component Operation Refrigeration System Suction PressureDischarge Pressure Thermostatic Expansion ValveGlycol Solution Maintenance Regulating Valves Water/Glycol Condensing UnitsHot Gas Bypass Optional Replacement Procedures Steam Generating Humidifier Operation Procedures Circuit Board Adjustments Humidifier control board DIP switch settingsReplacing the Humidifier Canister AmpsMaintenance Inspection Checklist Troubleshooting Symptom Possible Cause Check or Remedy Cooling cycle too ShortDisplay freezes Control padsTroubleshooting Troubleshooting Troubleshooting Page Net ItiTin That