Manuali utente per Emerson Liebert MC Microchannel Outdoor Condenser 28 - 220kW

Sommario

• Important Safety Guidelines

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  • Save These Instructions

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• Liebert MC Nomenclature

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• 1.0 Introduction

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  • Figure 1 Two-fan Liebert MC condenser

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  • 1.1 Control/Fan Types

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    • 1.1.1 Premium Efficiency Control/EC Fan

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    • 1.1.2 Liebert Lee-Temp™ Refrigerant Control

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  • 1.2 Sound Level

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    • 1.2.1 Liebert Quiet-Line Match Up

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  • 1.3 Surge Protection Device (Optional)

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• 2.0 Site Preparation

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  • 2.1 Site Considerations

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  • 2.2 Dimensions and Weights

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

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    • Table 2 Condenser net weight addition—taller legs

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    • Figure 2 Typical footprint dimensions, all units

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    • Figure 3 Condenser planning dimensional data—MCS028

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

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    • Figure 5 Condenser planning dimensions–MCM120

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

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

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

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• 3.0 Inspection and Installation

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  • 3.1 Equipment Inspection

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    • 3.1.1 Packing Material

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  • Safety Information

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    • Figure 8 Equipment recommended for handling a Liebert condenser

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  • 3.2 Handling Unit on the Skid

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

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  • 3.3 Unit Storage

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  • 3.4 Unpacking the Condenser—All Unit Sizes

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    • Figure 10 Removing protective material

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

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

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

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      • Figure 12 Securing slings to condensers for lifting off skid

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      • Figure 13 Remove skid, set condenser on floor

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

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  • 3.6 Mounting the Condenser

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• 4.0 Electrical Connections

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  • 4.1 Line Voltage Wiring

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

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

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    • 4.1.1 Wye vs. Delta Connection Power Supply

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      • Figure 15 Wye vs. Delta power supply connection diagram

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

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

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

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    • 4.2.1 Electrical Field Connection Descriptions

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      • Figure 16 Typical connections, Premium Efficiency Control

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      • Key Electrical Details—Typical Connections, Premium Efficiency Control

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

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• 5.0 Piping

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  • 5.1 Piping Guidelines

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    • Figure 18 Piping schematic

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  • 5.2 Field Piping Guidelines

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

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

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

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

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

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

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

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

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  • 5.3 Refrigerant Planning Values

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

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

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    • Table 12 Interconnecting piping refrigerant charge

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  • 5.4 Equipment Application Guidelines

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  • 5.5 Refrigerant Oil Addition Procedures

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  • 5.6 System Dehydration/Leak Test

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

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  • 5.8 Liebert MC Condenser Charging with Liebert DSE™ Units

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

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    • Table 13 Target subcooling for ambient outdoor temperature

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    • Sample Calculations

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      • Table 14 Difference in subcooling measurements—Indoor minus outdoor

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      • Table 15 Liquid pressure and temperature chart

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    • Evaporator Subcooling Calculation Worksheet

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    • Elevation Correction

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    • Verification Against MC Condenser

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• 6.0 Checklist for Completed Installation

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  • 6.1 Moving and Placing Equipment

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  • 6.2 Electrical

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  • 6.3 Piping

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  • 6.4 Other

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• 7.0 Initial Startup Checks and Commissioning

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  • 7.1 Startup Checklist

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  • 7.2 Initial Startup

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• 8.0 Control Operation

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  • 8.1 Premium Efficiency Control Board and Interface

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    • Figure 23 Premium efficiency fan control board

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

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    • 8.1.1 Initial Screen Upon Power-On

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      • Figure 25 Initial controller display

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    • 8.1.2 Main Menu Description

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      • Figure 26 Main Menu operation and structure

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    • 8.1.3 Analog Signals Menu Description

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      • Figure 27 Analog Signals Menu

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      • Table 16 Analog signal definitions

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  • 8.2 Premium Efficiency Condenser Alarm Codes

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    • 8.2.1 Active Alarms Menu Description

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      • Figure 28 Active alarms menu

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    • 8.2.2 History Alarms Menu Description

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      • Figure 29 History alarms menu

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      • Table 17 System alarm information

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      • Table 18 EC Fan alarm information

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• 9.0 System Maintenance

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  • 9.1 General Procedures

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  • 9.2 Condenser Cleaning

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    • 9.2.1 When to Clean the Condenser Coil

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    • 9.2.2 What to Use to Clean the Condenser Coil

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    • 9.2.3 How to Clean the Condenser Coil

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  • 9.3 Fan Replacement

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    • Verify the Fan Address

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

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      • Figure 31 EBM large fan—Liebert MC series MCL

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

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  • 9.4 Premium Efficiency Control Board Replacement

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    • 9.4.1 Replacement Preparation

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      • Figure 33 Jumper locations on Control Board

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    • 9.4.2 Installation

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    • 9.4.3 Maintenance Inspection Checklist

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      • Monthly

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      • Semiannually

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      • Condenser

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      • Surge Protection Device (If Installed)

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      • Condenser

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      • Condenser Electrical Panel

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      • Fan Motors

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      • Notes

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• 10.0 Troubleshooting

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  • Table 19 Troubleshooting

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