Emerson Liebert MC Microchannel Outdoor Condenser 28 - 220kW User Manuals

Table of Contents

• Important Safety Guidelines

  7
  • Save These Instructions

    7
• Liebert MC Nomenclature

  9
• 1.0 Introduction

  10
  • Figure 1 Two-fan Liebert MC condenser

    10
  • 1.1 Control/Fan Types

    10
    • 1.1.1 Premium Efficiency Control/EC Fan

      10
    • 1.1.2 Liebert Lee-Temp™ Refrigerant Control

      11
  • 1.2 Sound Level

    11
    • 1.2.1 Liebert Quiet-Line Match Up

      11
  • 1.3 Surge Protection Device (Optional)

    11
• 2.0 Site Preparation

  12
  • 2.1 Site Considerations

    12
  • 2.2 Dimensions and Weights

    12
    • Table 1 Condenser net weights, shipping weights, dimensions and volume, approximate

      12
    • Table 2 Condenser net weight addition—taller legs

      12
    • Figure 2 Typical footprint dimensions, all units

      13
    • Figure 3 Condenser planning dimensional data—MCS028

      13
    • Figure 4 Condenser planning dimensions—MCM040, MCM080, MCM160 with/without Liebert Lee-Temp™

      14
    • Figure 5 Condenser planning dimensions–MCM120

      15
    • Figure 6 Condenser planning dimensions—MCL055, MCL110, MCL165 and MCL220

      16
    • Table 3 Condenser leg height and additional weight, MCL055, MCL110, MCL165 and MCK220

      16
    • Figure 7 Cabinet and anchor dimensions—MCL055, MCL110, MCL165 and MCL220 with Liebert Lee-Temp™ receiver

      17
• 3.0 Inspection and Installation

  18
  • 3.1 Equipment Inspection

    18
    • 3.1.1 Packing Material

      18
  • Safety Information

    18
    • Figure 8 Equipment recommended for handling a Liebert condenser

      19
  • 3.2 Handling Unit on the Skid

    19
    • Figure 9 Forklift position with one-fan or two-fan condensers

      19
  • 3.3 Unit Storage

    19
  • 3.4 Unpacking the Condenser—All Unit Sizes

    20
    • Figure 10 Removing protective material

      20
  • 3.5 Preparing a Condenser for Moving and Installation—Units with One or Two Fans

    21
    • 3.5.1 Attaching Legs, Removing the Skid and Attaching Slings-Units with One or Two Fans

      21
      • Figure 11 Attaching legs to one-fan or two fan condensers

        21
      • Figure 12 Securing slings to condensers for lifting off skid

        21
      • Figure 13 Remove skid, set condenser on floor

        22
      • Figure 14 Lifting condensers with one, two, three or four fans

        23
  • 3.6 Mounting the Condenser

    23
• 4.0 Electrical Connections

  24
  • 4.1 Line Voltage Wiring

    25
    • Table 4 Electrical data, three-phase, 60Hz condenser, Premium Version (EC control)

      25
    • Table 5 Electrical data, Liebert Lee-Temp™ receiver, 60Hz

      26
    • 4.1.1 Wye vs. Delta Connection Power Supply

      26
      • Figure 15 Wye vs. Delta power supply connection diagram

        26
      • Acceptable Power Supplies—208V to 480V Nominal Units

        26
      • Unacceptable Power Supplies—208V to 480V Nominal Units

        26
  • 4.2 Low-Voltage Control Wiring—Premium Efficiency Control Condenser

    27
    • 4.2.1 Electrical Field Connection Descriptions

      28
      • Figure 16 Typical connections, Premium Efficiency Control

        28
      • Key Electrical Details—Typical Connections, Premium Efficiency Control

        29
        • Figure 17 Field configurations and setting adjustments, Premium Efficiency Control

          30
• 5.0 Piping

  31
  • 5.1 Piping Guidelines

    31
    • Figure 18 Piping schematic

      33
  • 5.2 Field Piping Guidelines

    34
    • Figure 19 Liebert MC Condenser piping—Single-circuit units

      35
    • Table 6 Liebert MC Condenser piping sizes, single-circuit units

      35
    • Figure 20 Condenser piping for single-circuit condensers (with Liebert Lee-Temp™)

      36
    • Table 7 Condenser piping connection sizes—single-circuit condensers with Liebert Lee-Temp

      36
    • Figure 21 Piping: dimensions—dual circuit two-fan and four-fan units

      37
    • Table 8 Piping: dimensions—dual-circuit, two-fan and four-fan units

      37
    • Figure 22 Piping: dimensional data with Liebert Lee-Temp™—dual circuit condensers

      38
    • Table 9 Piping dimensions—dual circuit condensers with Liebert Lee-Temp

      38
  • 5.3 Refrigerant Planning Values

    39
    • Table 10 Refrigerant required, R-407C, approximate

      39
    • Table 11 Refrigerant required, R-410A, approximate

      39
    • Table 12 Interconnecting piping refrigerant charge

      40
  • 5.4 Equipment Application Guidelines

    40
  • 5.5 Refrigerant Oil Addition Procedures

    40
  • 5.6 System Dehydration/Leak Test

    40
  • 5.7 Liebert MC Condenser Charging, Units with Liebert Lee-Temp™ Systems

    40
  • 5.8 Liebert MC Condenser Charging with Liebert DSE™ Units

    40
  • 5.9 Liebert MC Condenser Charging, Units without Liebert Lee-Temp™ Systems

    41
    • Table 13 Target subcooling for ambient outdoor temperature

      42
    • Sample Calculations

      43
      • Table 14 Difference in subcooling measurements—Indoor minus outdoor

        43
      • Table 15 Liquid pressure and temperature chart

        44
    • Evaporator Subcooling Calculation Worksheet

      45
    • Elevation Correction

      45
    • Verification Against MC Condenser

      45
• 6.0 Checklist for Completed Installation

  46
  • 6.1 Moving and Placing Equipment

    46
  • 6.2 Electrical

    46
  • 6.3 Piping

    46
  • 6.4 Other

    46
• 7.0 Initial Startup Checks and Commissioning

  47
  • 7.1 Startup Checklist

    47
  • 7.2 Initial Startup

    47
• 8.0 Control Operation

  48
  • 8.1 Premium Efficiency Control Board and Interface

    48
    • Figure 23 Premium efficiency fan control board

      48
    • Figure 24 Premium Efficiency Control Interface - Human Machine Interface (HMI)

      49
    • 8.1.1 Initial Screen Upon Power-On

      49
      • Figure 25 Initial controller display

        49
    • 8.1.2 Main Menu Description

      49
      • Figure 26 Main Menu operation and structure

        49
    • 8.1.3 Analog Signals Menu Description

      50
      • Figure 27 Analog Signals Menu

        50
      • Table 16 Analog signal definitions

        50
  • 8.2 Premium Efficiency Condenser Alarm Codes

    51
    • 8.2.1 Active Alarms Menu Description

      51
      • Figure 28 Active alarms menu

        51
    • 8.2.2 History Alarms Menu Description

      52
      • Figure 29 History alarms menu

        52
      • Table 17 System alarm information

        53
      • Table 18 EC Fan alarm information

        54
• 9.0 System Maintenance

  55
  • 9.1 General Procedures

    55
  • 9.2 Condenser Cleaning

    55
    • 9.2.1 When to Clean the Condenser Coil

      55
    • 9.2.2 What to Use to Clean the Condenser Coil

      56
    • 9.2.3 How to Clean the Condenser Coil

      56
  • 9.3 Fan Replacement

    57
    • Verify the Fan Address

      60
      • Figure 30 EBM small and medium fan, Liebert MC series MCS/MCM

        61
      • Figure 31 EBM large fan—Liebert MC series MCL

        61
      • Figure 32 Ziehl-Abegg small, medium and large fan, Liebert MC series MCS, MCM and MCL

        62
  • 9.4 Premium Efficiency Control Board Replacement

    62
    • 9.4.1 Replacement Preparation

      62
      • Figure 33 Jumper locations on Control Board

        63
    • 9.4.2 Installation

      64
    • 9.4.3 Maintenance Inspection Checklist

      65
      • Monthly

        65
      • Semiannually

        65
      • Condenser

        65
      • Surge Protection Device (If Installed)

        65
      • Condenser

        65
      • Condenser Electrical Panel

        65
      • Fan Motors

        65
      • Notes

        65
• 10.0 Troubleshooting

  66
  • Table 19 Troubleshooting

    66