Liebert 50 & 60Hz, 8 Tons user manual Location Considerations

Page 13

Site Preparation and Installation

2.1.2Location Considerations

! CAUTION

Units contain water. Water leaks can cause damage to sensitive equipment below. DO NOT MOUNT UNITS OVER SENSITIVE EQUIPMENT. A field-supplied pan with drain must be installed beneath cooling units and water/glycol-cooled condensing unit.

NOTE

Do not mount units in areas where normal unit operating sound may disturb the working environment.

Locate the evaporator unit over an unobstructed floor space if possible. This will allow easy access for routine maintenance or service. Do not attach additional devices to the exterior of the cabinet, as they could interfere with maintenance or service.

5

Image 13

Contents Liebert Mini-Mate2 Page Table of Contents System Performance Microprocessor Controls Microprocessor ControlSystem OPERATION, TESTING, and Maintenance AlarmsFigures Table iv Heat rejection matchup 50 Hz Table iii Heat rejection matchup 60 HzPage Standard Product Features Optional Equipment Ancillary Ship Loose Accessories Input Voltage Entering Fluid Temperature Min Installation ConsiderationsRoom Preparation Application limits, evaporator and chilled-water unitsLocation Considerations Drycooler Evaporator Unit weights System WeightsEquipment Inspection upon receipt Nylock Installing the Evaporator or Chilled-Water UnitsLocking nut Hex nut Nut Clamps are for shipping purposes only Close Coupled InstallationsConnections for Ducted Systems Evaporator Air Distribution Filter BoxEvaporator external static pressure 60 at 3750 CFM 6371 CMH Hp Motor std Hp Motor opt Turns External OpenPiping Connections and Coolant Requirements Drain Line Drain installationHumidifier Water Supply Line Condensate PumpChilled-Water Piping-Chilled-water Systems Only General arrangement diagram chilled-water systemsRecommended refrigerant line sizes Refrigerant R-22 PipingEquivalent Suction Feet Circuit Liquid Line Quick Connect Fittings Total refrigerant = Units and LinesTon unit refrigerant charge Line charges field pipingOptional Filter BOX Electrical Connections, Evaporator or Chilled-Water Unit Power ConnectionsFront of Unit Evaporator unit electrical connectionsGeneral Considerations DuctingConsiderations for Specific Applications Electrical Connections Condensing Unit Piping ConnectionsControl Connections DPN000248Rev1 Heat rejection connection. Field Electrical Connections Outdoor Air-Cooled Condensing Unit InstallationHigh voltage Electric service connectionLow voltage Earth ground connectionFootprint Dimensions 152 11-1/2292 Condensing Unit Fluid Requirements Water/Glycol Piping ConsiderationsRegulating Valve Indoor water/glycol condensing unit dimensional data Site Preparation and Installation Two circuits provided. Single circuit shown Optional free cooling coil 3-way valve on water/glycol units Optional Equipment PipingOptional free cooling coil 3-way valve on air-cooled units Checklist for Completed Installation Wall box Feature OverviewMain Menu Menu Alarm History Active AlarmsDefault setpoints and allowable ranges SetpointsRestart Time Delay Setup OperationTime Date10.2 C/F Degrees Show DIP SwitchHumidity Control Method Lead CompressorAlarm Enable Change PasswordsSetup functions, default values and allowable ranges Calibrate SensorsCommon Alarm Enable Alarm Time DelayCustom Alarms Alarm default time delaysCustom Text Equipment Options SwitchesLCD Display Contrast Nonvolatile MemoryTest Outputs Run DiagnosticsTest Inputs Test Micro TB3-4 Connection to Terminal #4 Wallbox TB3-1 TB3-2 TB3-3 TB4-4 Wall Box DIP SwitchesTB3-3 Connection to Terminal #3 Wallbox TB3-2 Connection to Terminal #2 WallboxCooling Control Type Response Proportional ControlReheat Dehumidification / Humidification Percent Required Load Control FeaturesCommunications Humidification Operation System ActivationCustom Alarms Alarms Definitions and TroubleshootingHigh Head Pressure Air-Cooled SystemsHumidifier Problem Alarm TemperatureHigh-Water Alarm Loss of PowerChange Filter Optional/Custom AlarmsSystem Testing Maintenance and Component Operation Suction Pressure Refrigeration SystemDischarge Pressure Thermostatic Expansion ValveRegulating Valves Water/Glycol Condensing Units Glycol Solution MaintenanceHot Gas Bypass Optional Replacement Procedures Steam Generating Humidifier Operation Procedures Humidifier control board DIP switch settings Circuit Board AdjustmentsReplacing the Humidifier Canister AmpsMaintenance Inspection Checklist Troubleshooting Short Symptom Possible Cause Check or Remedy Cooling cycle tooDisplay freezes Control padsTroubleshooting Troubleshooting Troubleshooting Page Iti NetTin That