Document Outline

• Important Safety Instructions
• Save These Instructions
• 1.0 Liebert DS Components and Nomenclature
  • Figure 1 Downflow model component locations
  • Figure 2 Upflow model component locations
  • Figure 3 Liebert DS model number nomenclature
• 2.0 Cooling Configurations
• 3.0 Pre-Installation Guidelines
  • 3.1 Room Preparation
  • 3.2 Air Distribution-Downflow Units
    • Figure 4 Downflow unit ducting and plenum ducting
  • 3.3 Air Distribution-Upflow Units
    • Figure 5 Upflow ducting configurations
  • 3.4 Connections and System Setup
  • 3.5 Operating Conditions
• 4.0 Liebert DS Dimensions and Weights
  • Table 1 Shipping dimensions-domestic and export, inches (mm)
  • Table 2 Shipping weights-approximate, kg
  • Figure 6 Cabinet and floor planning dimensions-downflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressor models
  • Table 3 Weights for downflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressor models
  • Figure 7 Cabinet and floor planning dimensions-downflow, air-cooled, 28-42kW (8-12 ton), scroll compressor models
  • Table 4 Weights for downflow, air-cooled, 28-42kW (8-12 ton), scroll compressor models
  • Figure 8 Cabinet and floor planning dimensions-downflow, water/glycol/GLYCOOL, 28-42kW (8-12 ton), all compressor models
  • Table 5 Weights for downflow, water/glycol/GLYCOOL, 28-42kW (8-12 ton), all compressor models
  • Figure 9 Cabinet and floor planning dimensions-downflow, air-cooled, 53-77kW (15-22 ton), semi-hermetic compressor models
  • Table 6 Weights for downflow, air-cooled, 53-77kW (15-22 ton), semi-hermetic compressor models
  • Figure 10 Cabinet and floor planning dimensions-downflow, air-cooled, 53-77kW (15-22 ton), scroll compressor models
  • Table 7 Weights for downflow, air-cooled, 53-77kW (15-22 ton), scroll compressor models
  • Figure 11 Cabinet and floor planning dimensions-downflow, water/glycol/GLYCOOL, 53-77kW (15-22 ton), all compressor models
  • Table 8 Weights for downflow, water/glycol/GLYCOOL, 53-77kW (15-22 ton), all compressor models
  • Figure 12 Cabinet and floor planning dimensions-downflow, air-cooled, 105kW (30 ton), all compressor models
  • Table 9 Weights for downflow, air-Cooled, 105kW (30 ton), all compressor models
  • Figure 13 Cabinet and floor planning dimensions-downflow, water/glycol/GLYCOOL, 105kW (30 ton), all compressor models
  • Table 10 Weights for downflow, water/glycol/GLYCOOL, 105kW (30 ton), all compressor models
  • Figure 14 Cabinet and floor planning dimensions-upflow, air-cooled 28-42kW (8-12 ton), semi-hermetic compressor models
  • Table 11 Weight for upflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressor models
  • Figure 15 Cabinet and floor planning dimensions-upflow, air-cooled 28-42kW (8-12 ton), scroll or digital scroll compressor models
  • Table 12 Weight for upflow, air-cooled, 28-42kW (8-12 ton), scroll or digital scroll compressor models
  • Figure 16 Cabinet and floor planning dimensions-upflow, water/glycol/GLYCOOL, 28-42kW (8-12 ton), all compressor models
  • Table 13 Weights for upflow, water/glycol/GLYCOOL, 28-42kW (8-12 ton), all compressor models
  • Figure 17 Cabinet and floor planning dimensions-upflow, air-cooled, 53-77kW (15-22 ton), semi-hermetic compressor models
  • Table 14 Weights for upflow, air-cooled, 53-77kW (15-22 ton), semi-hermetic compressor models
  • Figure 18 Cabinet and floor planning dimensions-upflow, air-cooled, 53-77kW (15-22 ton), scroll or digital scroll compressor models
  • Table 15 Weight for upflow, air-cooled, 53-77kW (15-22 ton), scroll or digital scroll compressor models
  • Figure 19 Cabinet and floor planning dimensions-upflow, water/glycol/GLYCOOL, 53-77kW (15-22 ton), all compressor models
  • Table 16 Weights for upflow, water/glycol/GLYCOOL, 53-77kW (15-22 ton), all compressor models
  • Figure 20 Cabinet and floor planning dimensions-upflow, air-cooled, 105kW (30 ton), all
  • Table 17 Weights-upflow, air-cooled, 105kW (30 ton), all
  • Figure 21 Cabinet and floor planning dimensions-upflow water/glycol/GLYCOOL 105kW (30 ton), all compressors
  • Table 18 Weights-upflow water/glycol/GLYCOOL 105kW (30 ton), all compressors
  • Figure 22 Floor stand dimensions-downflow, 28-42kW (8-12 ton) models
  • Table 19 Floor stand and floor planning dimensions-downflow, 28-42kW (8-12 ton) models
  • Figure 23 Floor stand dimensions-downflow, 53-77kW (15-22 ton) models
  • Table 20 Floor stand and floor planning dimensions-downflow, 53-77kW (15-22 ton) models
  • Figure 24 Floor stand dimensions-downflow, 105kW (30 ton) models
  • Table 21 Floor stand and floor planning dimensions-downflow, 105kW (30 ton) models
  • Figure 25 Blower outlet and deck dimensions-upflow, 28-42kW (8-12 ton)
  • Table 22 Dimensions for upflow, 28-42kW (8-12 ton)
  • Figure 26 Blower outlet and deck dimensions-upflow, 53-77kW (15-22 ton)
  • Table 23 Blower outlet and deck dimensions for upflow, 53-77kW (15-22 ton)
  • Figure 27 Blower outlet and deck dimensions-upflow 105kW (30ton)
  • Table 24 Blower outlet and deck dimensions-upflow 105kW (30ton)
  • Figure 28 Rear return filter box dimensions
  • Table 25 Rear return filter box dimensions
  • Figure 29 Upflow unit plenum dimensions
  • Table 26 Upflow unit plenum dimensions
• 5.0 Equipment Inspection and Handling
  • 5.1 Packaging Material
• Safety Information
  • Figure 30 Equipment recommended for handling Liebert DS
  • 5.2 Unpacking the Unit
    • Figure 31 Removing packaging
    • 5.2.1 Removing the Unit from the Skid With a Forklift
      • Figure 32 Remove the unit from the skid
    • 5.2.2 Moving the Unit to the Installation Location with Piano Jacks
      • Figure 33 Moving the unit to its installation location
    • 5.2.3 Removing Piano Jacks
    • 5.2.4 Removing Liebert DS from Skid Using Rigging
      • Figure 34 Locate center of gravity marker and place slings
      • Figure 35 Using rigging to lift Liebert DS off skid
  • 5.3 Semi-Hermetic Compressor Spring Isolation System
  • 5.4 Placing the Unit on a Floor Stand
    • Figure 36 Setting the unit on a floor stand
• 6.0 Disassembling the Liebert DS for Transport
  • 6.1 Required Equipment
  • 6.2 Disassembly-Downflow Units
    • 6.2.1 Remove the Compressor Assembly
    • 6.2.2 Remove the Filter and Electric Box Assembly
  • 6.3 Reassembly-Downflow Units
    • 6.3.1 Reconnecting Piping, Charging and Replacing Panels
  • 6.4 Reassembly Checklist
    • Figure 37 Component dimensions-downflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressor models
    • Table 27 Component weights-downflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic
    • Figure 38 Component dimensions-downflow, air-cooled, 28-42kW (8-12 ton), scroll/digital scroll compressor models
    • Table 28 Component weights-downflow, air-cooled, 28-42kW (8-12 ton), scroll/digital scroll
    • Figure 39 Component dimensions-downflow, water/glycol/GLYCOOL, 28-42kW (8-12 ton), all compressor models
    • Table 29 Component weights-downflow, water/glycol/GLYCOOL, 28-42kW (8-12 ton), all
    • Figure 40 Component dimensions-downflow, air-cooled, 53-77kW (15-22 ton), semi-hermetic compressor models
    • Table 30 Component weights-downflow, air-cooled, 53-77kW (15-22 ton), semi-hermetic
    • Figure 41 Component dimensions-downflow air-cooled, 53-77kW (15-22 ton), scroll/digital scroll compressor models
    • Table 31 Component weights-downflow, air-cooled, 53-77kW (15-22 ton), scroll/digital scroll
    • Figure 42 Component dimensions-downflow water/glycol, GLYCOOL, 53-77kW (15-22 ton), all compressor models
    • Table 32 Component weights-downflow water/glycol, GLYCOOL, 53-77kW (15-22 ton), all
    • Figure 43 Component dimensions-downflow, air-cooled, 105kW (30 ton), semi-hermetic compressor models
    • Table 33 Component weights-downflow, air-cooled, 105kW (30 ton), semi-hermetic compressors
    • Figure 44 Component dimensions-downflow, air-cooled, 105kW (30 ton), scroll compressor models
    • Table 34 Component weights-downflow, air-cooled, 105kW (30 ton), scroll compressor models
    • Figure 45 Component dimensions-downflow, water/glycol/GLYCOOL, 105kW (30 ton), all compressor models
    • Table 35 Component weights-downflow, water/glycol/GLYCOOL, 105kW (30 ton), all compressor models
  • 6.5 Disassembly-Upflow Units
    • 6.5.1 Remove Compressor Assembly
    • 6.5.2 Remove Blower and Electric Box Assembly
  • 6.6 Reassembly-Upflow Unit
  • 6.7 Reassembly Checklist
    • Figure 46 Component dimensions-upflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressor models
    • Table 36 Component weights-upflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressor models
    • Figure 47 Component dimensions-upflow, air-cooled, 28-42kW (8-12 ton), scroll/digital scroll compressor models
    • Table 37 Component weights-upflow, air-cooled, 28-42kW (8-12 ton), scroll/digital scroll compressor models
    • Figure 48 Component dimensions-upflow, water/glycol/GLYCOOL, 28-42kW (8-12 ton), all compressor models
    • Table 38 Component weights-upflow, water/glycol/GLYCOOL, 28-42kW (8-12 ton), all compressor models
    • Figure 49 Component dimensions-upflow, air-cooled, 53-77kw (15-22 ton), semi-hermetic compressor models
    • Table 39 Component weights-upflow air-cooled 53-77kw (15-22 ton), semi-hermetic compressor models
    • Figure 50 Component dimensions-upflow, air-cooled, 53-77kw (15-22 ton), scroll/digital scroll compressor models
    • Table 40 Component weights-upflow, air-cooled, 53-77kw (15-22 ton), scroll /digital scroll compressor models
    • Figure 51 Component dimensions-upflow water/glycol/GLYCOOL 53-77kw (15-22 ton), all compressor models
    • Table 41 Component weights-upflow water/glycol/GLYCOOL, 53-77kW (15-22 ton) all compressor models
    • Figure 52 Component dimensions-upflow, air-cooled, 105kW (30 ton), semi-hermetic compressor models
    • Table 42 Component weights-upflow, air-cooled, 105kW (30 ton), semi-hermetic compressor models
    • Figure 53 Component dimensions-upflow, air-cooled, 105kW (30 ton), scroll/digital scroll compressor models
    • Table 43 Component weights-upflow, air-cooled, 105kW (30 ton), scroll/digital scroll compressor models
    • Figure 54 Component dimensions-upflow, water/glycol/GLYCOOL, 105kW (30 ton), all compressor models
    • Table 44 Component weights-upflow, water/glycol/GLYCOOL, 105kW (30 ton), all compressor models
• 7.0 Electrical Connections
  • Figure 55 Electrical field connections
  • 7.1 Electrical Field Connection Descriptions
    • Standard Electrical Connections
    • Optional Electrical Connections
    • Optional Low Voltage Terminal Package Connections
• 8.0 Piping
  • 8.1 Fluid Connections
    • 8.1.1 Condensate Piping-Field-Installed
      • Gravity Drain
        • Figure 56 Gravity drain for downflow and upflow units
      • Condensate Pump
    • 8.1.2 Humidifier Supply Water-Optional Infrared
    • 8.1.3 Requirements of Systems Using Water or Glycol
      • General Guidelines
      • Leak Checking of Unit and Field Piping
  • 8.2 Refrigeration Piping
    • 8.2.1 Piping Guidelines-Air-Cooled Units
      • Table 45 Recommended refrigerant line sizes - OD copper (inches)*
      • Table 46 Indoor unit approximate refrigerant charge for R-22 or R-407C
      • Table 47 Line charges - refrigerant per 100 ft (30m) of Type “L” copper tube
      • Table 48 Outdoor condenser approximate refrigerant charge lb (kg) per circuit
  • 8.3 Dehydration/Leak Test and Charging Procedures for R-407C and R-22
    • 8.3.1 Air-Cooled Condenser with Fan Speed Head Pressure Control System
      • Fan Speed Control Piping
      • Fan Speed Control Materials Supplied
      • Fan Speed Control Leak Check and Evacuation Procedure
      • Fan Speed Charging
        • Table 49 Fan speed suction pressure transducer settings
    • 8.3.2 Air-Cooled Condenser with Lee-Temp “Flooded Condenser” Head Pressure Control System
      • Lee-Temp Piping
      • Lee-Temp Controlled Materials Supplied
      • Lee-Temp Leak Check and Evacuation Procedure
      • Lee-Temp Charging
        • Table 50 Lee-Temp suction pressure transducer settings
      • Lee-Temp Receiver Refrigerant Level
• 9.0 Piping Schematics
  • Figure 57 Piping schematic-air-cooled, semi-hermetic compressor models
  • Figure 58 Piping schematic-air-cooled, scroll compressor models
  • Figure 59 Piping schematic-water/glycol, semi-hermetic compressor models
  • Figure 60 Piping schematic-water/glycol with scroll compressor models
  • Figure 61 Piping schematic-GLYCOOL semi-hermetic compressor models
  • Figure 62 Piping schematic-GLYCOOL with scroll compressor models
  • Figure 63 Piping schematic-water/glycol with digital scroll compressor models
  • Figure 64 GLYCOOL with digital scroll compressor models
  • Figure 65 Optional piping schematic for Econ-O-Coil
  • Figure 66 Primary connection locations-downflow, air-cooled, 28-42kW (8-12 ton), semi-hermetic compressor models
  • Figure 67 Primary connection locations-downflow, air-Cooled, 28-42kW (8-12 ton) with scroll compressor models
  • Figure 68 Primary connection locations-downflow water/glycol/GLYCOOL 28-42kW (8-12 ton), all compressor models
  • Figure 69 Primary connection locations-downflow, air-Cooled, 53-77kW (15-22 ton), semi-hermetic compressor models
  • Figure 70 Primary connection locations-downflow, air-Cooled, 53-77kW (15-22 ton) with scroll compressor models
  • Figure 71 Primary connection locations-downflow, water/glycol/GLYCOO,L 53-77kW (15-22 ton), all compressor models
  • Figure 72 Primary connection locations-downflow, air-cooled, 105kW (30 ton), all compressor models
  • Figure 73 Primary connection locations-downflow, air-cooled, 105kW (30 ton), all compressor models
  • Figure 74 Primary connection locations-upflow, air-cooled, 28-42kw (8-12 ton), semi-hermetic compressor models
  • Figure 75 Primary connection locations-upflow, air-Cooled, 28-42kW (8-12 ton), semi-hermetic compressor models
  • Figure 76 Primary connection locations-upflow, water/glycol/GLYCOOL, 28-42kW (8-12 ton), all compressor models
  • Figure 77 Primary connection locations-upflow, air-cooled, 53-77kW (15-22 ton), semi-hermetic compressor models
  • Figure 78 Primary connection locations-upflow, air-cooled, 53-77kW (15-22 ton), scroll compressor models
  • Figure 79 Primary connection locations-upflow, water/glycol/GLYCOOL, 53-77kW (15-22 ton), all compressor models
  • Figure 80 Primary connection locations-upflow, air-cooled, 105kW (30 ton), all
  • Table 51 Piping data-upflow, air-cooled 105kW (30 ton), all
  • Figure 81 Primary connection locations-upflow, water/glycol/GLYCOOL, 105kW (30 ton), all
  • Table 52 Piping data-upflow, upflow, water/glycol/GLYCOOL, 105kW (30 ton), all
• 10.0 Checklist for Completed Installation
  • 10.1 Moving and Placing Equipment
  • 10.2 Electrical
  • 10.3 Piping
  • 10.4 Other
• 11.0 Initial Startup Checks and Commissioning Procedure for Warranty Inspection
  • 11.1 Information for Warranty Inspection-Remove Power From Unit Disconnect
  • 11.2 Startup Checks Inspection With Panels Removed and Disconnect Off
  • 11.3 Commissioning Procedure With Panels On
    • Return Completed Startup Form to Your Local Emerson Sales Office
• 12.0 Maintenance
  • 12.1 Filters
    • Table 53 Filter quantities, downflow units
    • Table 54 Filter quantities, upflow units
    • 12.1.1 Filter Replacement Procedure-Downflow Units
    • 12.1.2 Filter Replacement Procedure-Upflow Units
      • Figure 82 Proper filter pleat direction
  • 12.2 Blower Drive System
    • 12.2.1 Upflow Motor Access
      • Figure 83 Upflow motor access
    • 12.2.2 Belt Removal
    • 12.2.3 Belt Installation and Tensioning
      • Figure 84 Auto-belt tensioning motor base
      • Blower Bearing Maintenance
      • Blower Bearing Inspection
      • Blower Bearing Replacement
      • Blower Motor
      • Blower Motor Lubrication
      • Blower Wheel
  • 12.3 Humidifier
    • 12.3.1 Infrared Humidifier
    • 12.3.2 Cleaning Humidifier Pan and Float Switch
      • Figure 85 Correct orientation of float switch
    • 12.3.3 Changing Humidifier Lamps
  • 12.4 Condensate Drain and Condensate Pump Systems
    • 12.4.1 Condensate Drain
    • 12.4.2 Condensate Pump
  • 12.5 Air-Cooled Condenser and Drycoolers
  • 12.6 Reheat-Electric Reheat (Three-Stage and SCR)
  • 12.7 Compressor
    • 12.7.1 Compressor Oil
      • Table 55 Compressor oil types
    • 12.7.2 Semi-Hermetic Compressors
    • 12.7.3 Scroll and Digital Scroll Compressors
  • 12.8 Compressor Replacement
    • 12.8.1 Compressor Motor Burnout
    • 12.8.2 Digital Compressor Unloading Solenoid(s)
      • Models 028, 035 and 042
      • Models 053, 070 and 077
    • 12.8.3 Compressor Replacement Procedure
  • 12.9 Facility Fluid and Piping Maintenance
  • 12.10 Paradenser-Water-Cooled Condenser
    • 12.10.1 Cleaning Instructions
  • 12.11 Water/Glycol Control Valves
    • 12.11.1 Regulating Valves - Semi Hermetic and Standard Scroll Compressors
      • Adjustment-Johnson Controls/Penn Johnson Valves
        • Table 56 Recommended refrigerant pressures
      • Testing Function of Valve
      • Location
    • 12.11.2 Motor Ball Valve-Digital Scroll Compressors
      • Control
      • Control Method
      • Adjustment
      • Startup
      • Location
      • Manual Control
    • 12.11.3 Drycooler Settings
      • Table 57 Water/glycol system conditions requiring optional settings for aquastats
      • Table 58 Aquastat settings-two-fan through four-fan drycoolers
      • Table 59 Aquastat settings-six-fan drycoolers
      • Table 60 Aquastat settings-eight-fan drycoolers
• 13.0 HVAC Maintenance Checklist
  • Filters
  • Blower Section
  • Reheat
  • Steam Generating Humidifier
  • Infrared Humidifier
  • Condensate Pump
  • Refrigeration Piping
  • Water-Cooled Condensers
  • Compressor Section
  • Electrical Panel
  • Controls
  • Air-Cooled Condenser / Drycooler
  • Glycol Pump