Liebert DS manual

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Liebert DS user manual

Contents

Liebert DS Page Table of Contents 108 MaintenanceElectrical Connections Piping Compressor Replacement Hvac Maintenance Checklist Figures Page Page Tables Viii Important Safety Instructions Page Downflow model component locations Liebert DS Components and Nomenclature Upflow model component locations = Dual-Cooling Water/Glycol Three-stage Compressor U a Glycool Cooling Configurations PRE-INSTALLATION Guidelines Room PreparationAir Distribution-Downflow Units Air Distribution-Upflow Units Upflow ducting configurations Operating Conditions Connections and System Setup 028/035/042 053/070/077 Liebert DS Dimensions and WeightsShipping dimensions-domestic and export, inches mm Shipping weights-approximate, kg Model No 028, 035 Approximate Dry Weight, lb kg Approximate Model No 028, 035 Top ViewFront View GLYCOOL/Dual-Cool Dry Weight lb. kg ApproximateDPN000894 51mm Front View Dry Weight, lb kg Approximate Model 053 070 077 070 077 Dry Weight, lb kg Approximate Model No TOP View Compressor Dry Weight, lb kg, Approximate Type Model 053 Dry Weight, lb kg approximate Compressor Type Model Top ViewFront View Dry Weight, lb kg approximate Compressor Type Model 105 Dry Weight, lb kg Model No 028-042 Compressor Type Model Dry Weight, lb kg approximate Alternate Refrigerant Piping Entrance Model No 053, 070 Top View Weights-upflow, air-cooled, 105kW 30 ton, all Dry Weight, Approximate, lb kgModel 105 Compressor GLYCOOL/Dual-Cool Height, in. mm Turning Vane Dimensions, in. mm Model Floor stand dimensions-downflow, 53-77kW 15-22 ton models Floor stand dimensions-downflow, 105kW 30 ton models Models Blower Supply Dimensions for upflow, 28-42kW 8-12 ton Dimensions, in. mm Models Blower Supply Blower outlet and deck dimensions-upflow, 53-77kW 15-22 ton Dimensions, in. mm Models Blower Blower outlet and deck dimensions-upflow 105kW 30ton Dimensions, in mm Compressor Type # Filters Rear return filter box dimensions Left Side Views Right Side Views Check One Equipment Inspection and Handling Packaging Material Step 181659P1 Rev Unpacking the Unit Step Removing the Unit from the Skid With a Forklift Removing Piano Jacks Moving the unit to its installation location Rev Removing Liebert DS from Skid Using Rigging Lifting Sling Equal Equal Distance Distance Liebert Floor Stand front discharge shown Semi-Hermetic Compressor Spring Isolation SystemPlacing the Unit on a Floor Stand Detail a Disassembly-Downflow Units Required EquipmentDisassembling the Liebert DS for Transport Reheat-Optional Component Remove the Filter and Electric Box Assembly Remove the Compressor Assembly Reconnecting Piping, Charging and Replacing Panels Reassembly-Downflow Units Reassembly Checklist Filter & Electric Box Assembly Filter & Electric Box Assembly 940mm 1930mm Assembly Assembled Height 1930mm 59-7/16 Filter and Electric Box Assembly Blower & Coil AssemblySemi-Hermetic Compressor Scroll Compressor Component Air Cooled Dual Cool Dry Weight, lb kg Approximate Includes Panels Filter & Electric 1510mm Disassembly-Upflow Units Remove Blower and Electric Box Assembly Remove Compressor Assembly Reassembly-Upflow Unit 2159mm 31-1/4 794mm 85 2159mm Assembled Length 660mm 2083mm 108 2743mm Assembled Length 82 2083mm Blower & Electric Box Assembly 31-1/4 REV REV 31-1/4 794mm Electrical Connections Downflow LOW Volt Section Electrical Field Connection Descriptions Standard Electrical ConnectionsOptional Electrical Connections Optional Low Voltage Terminal Package Connections Gravity Drain Condensate Piping-Field-InstalledFluid Connections Piping Gravity drain for downflow and upflow units Condensate Pump Requirements of Systems Using Water or Glycol Humidifier Supply Water-Optional InfraredGeneral Guidelines Leak Checking of Unit and Field Piping Refrigeration Piping Recommended refrigerant line sizes OD copper inches Piping Guidelines-Air-Cooled Units Fan Lee-Temp Model Speed Includes receiver Liquid Line, lb kg Fan Speed Control Leak Check and Evacuation Procedure Fan Speed Control PipingFan Speed Control Materials Supplied Fan Speed Charging Fan speed suction pressure transducer settings Lee-Temp Leak Check and Evacuation Procedure Lee-Temp PipingLee-Temp Controlled Materials Supplied Lee-Temp suction pressure transducer settings Lee-Temp ChargingLee-Temp Receiver Refrigerant Level Piping schematic-air-cooled, semi-hermetic compressor models Piping Schematics Fan Speed Lee-Temp Liebert DS Unit Customer Heat Rejection Liebert Associated piping Piping schematic-GLYCOOL semi-hermetic compressor models Liebert Customer Heat Rejection Glycool with digital scroll compressor models DPN000805 Rev Optional piping schematic for Econ-O-Coil Point Description Inches mm Connection Size / Opening DPN000804 Front of Unit 53kW 15ton / 70 & 77kW 20 & 22ton DPN000929 Rev DPN000933 HUM E1 E2 Front of Unit DPN001015 CGD TOP View Point Description In. mm Left Side Section ViewTop View of Unit Front Section View 53kW 15 ton/70 & 77kW 20 & 22 ton Left Side Section View of Unit 53kW 15 tons/70 & 77kW 20 & 22 ton Left Side Section View Front Section View Left Side Section View Point Description Connection Size / Opening Piping data-upflow, air-cooled 105kW 30 ton, all Point Description Inches mm Opening, inches mm Connection Size Other Checklist for Completed InstallationMoving and Placing Equipment Electrical 108 109 Commissioning Procedure With Panels On Filter quantities, upflow units MaintenanceFilters Filter quantities, downflow units Filter Replacement Procedure-Downflow Units Filter Replacement Procedure-Upflow UnitsBlower Drive System Upflow Motor Access Belt Installation and TensioningBelt Removal Blower Motor Blower Bearing MaintenanceBlower Bearing Replacement Blower Bearing Inspection Humidifier Correct orientation of float switch Infrared Bulbs Condensate Drain and Condensate Pump SystemsChanging Humidifier Lamps Condensate Drain Air-Cooled Condenser and Drycoolers Reheat-Electric Reheat Three-Stage and SCRCompressor Facility Fluid and Piping Maintenance Compressor Replacement Water/Glycol Control Valves Cleaning InstructionsAdjustment-Johnson Controls/Penn Johnson Valves Paradenser-Water-Cooled Condenser 12.11.2Motor Ball Valve-Digital Scroll Compressors Testing Function of ValveAdjustment Location Aquastat settings-eight-fan drycoolers 12.11.3Drycooler SettingsAquastat settings-two-fan through four-fan drycoolers Aquastat settings-six-fan drycoolers Hvac Maintenance Checklist Electrical Panel Refrigeration PipingWater-Cooled Condensers Compressor Section Glycol Pump Air-Cooled Condenser / DrycoolerPage That Ne tIti Ti n