Liebert 3000 installation manual Condenser, Glycol Regulating Valve

Page 45

Glycol/GLYCOOL Cooled Models

5.6Condenser

The condenser is designed to operate in conjunction with a drycooler. The maximum coolant pressure is 350 psig (2413 kPa).

NOTE

For pressures above 150 psig (1034 kPa), the high pressure option for high pressure valve(s) is required.

5.7Glycol Regulating Valve

The glycol regulating valve automatically regulates the amount of coolant necessary to remove the heat from the refrigeration system, permitting more fluid to flow when load conditions are high and less fluid to flow when load conditions are low. The valve consists of a brass body, balance spring, valve seat, valve disc holders, capillary tube to discharge pressure, and adjusting screw.

5.7.1Standard Valve - 150psig (1034kPa) System for 3 & 5 Ton Units (Johnson Controls Valve) High Pressure Valve - 350psig (2413kPa) System for 5 Ton Units (Johnson Controls Valve)

For details, refer to 4.3.1 - Standard Valve - 150psig (1034kPa) System for 3 & 5 Ton Units (Johnson Controls Valve) High Pressure Valve - 350psig (2413kPa) System for 5 Ton Units (Johnson Controls Valve).

5.7.2High Pressure Valve - 350 psig (2413 kPa) System for 3 Ton Units (Metrex Valve)

For details, refer to 4.3.2 - High Pressure Valve - 350 psig (2413 kPa) System for 3 Ton Units (Metrex Valve).

5.7.3Testing Valve Function

When the refrigeration system has been off for approximately 10-15 minutes, the coolant flow should stop.

Should the coolant continue to flow, the valve is either improperly adjusted or the pressure sensing capillary is not connected properly to the condenser.

Table 20 Refrigerant control settings psi (kPa)

Low Pressure

Low Pressure

High Pressure

Cut Out

Cut In

Cut Out

 

 

 

20 (137.9)

65 (448.2)

360 (2482)

 

 

 

39

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Contents Liebert Challenger Page Table of Contents Chilled Water Models Split System ModelsR407C Refrigerant Figures Tables System Descriptions Equipment Inspection Room PreparationLocation Considerations Equipment HandlingUnit net weight Removal of SkidModel Lbs kg Front return configuration Rear return configurationFloor Cutout Dimensions Piping Considerations Drain LinePiping connection size Hot GasRefrigerant Line Suction Refrigerant Line HumidifierWater SupplyLineCondensate Pump Line Condensate DrainCondenser Return Line Condenser SupplyLineHotWater Return HumidifierWater SupplyLine Hot Water SupplyPiping connections for chilled water self-contained units Installation Electrical connections Electrical ConnectionsUnder-Floor Discharge Systems Balancing the Air DistributionHz Units 550 600 Model Ton Hz Units 550 600 ModelChecklist for Completed Installation Plenum InstallationDucted Applications Installation Line Voltage Condenser LocationLow Voltage Lee-Temp/Flood Back Head Pressure Control CondensersAir cooled condenser statistics Recommended line sizes OD copper inches Refrigerant PipingMaterials Supplied Fan Speed Control SystemsEquivalent lengths feet for various pipe fittings Condenser refrigerant per serial tagDehydration/Leak Test Single Circuit Shown Lee-Temp/Flood Back Head Pressure Control Systems Refrigerant control settings psi kPaCharging PipingMaterials Supplied Low Pressure Cut Out High Pressure Cut Out 360 Single Circuit Shown Condenser Water cooled general arrangement Adjustment Water Regulating ValveManual Flushing Adjusting collar nut Testing Valve FunctionDrycooler Installation Drycooler LocationPump and Drycooler Room dew point temperatures Glycol PipingDry Bulb Wet Bulb Relative Dew Point Humidity Filling Instructions Volume in standard Type L copper pipingExpansion Tanks, Fluid Relief Valves and Other Devices Preparing the System for FillingGlycol Solutions Ethylene glycol concentrations@ 50F 10C Filling the System 43-3/16 43-9/16 110 5mm For expansion tank dimensions, see onSee Note 30-1/4 1095mm 483mm 1097mmDrycooler data Mounting hole dimensional dataGlycol pump data Pump Pump Suction Pump Discharge ConnectionFactory Glycool general arrangement Glycol Regulating Valve Chilled Water Models WAY Valve Water/Glycol Cooled Condensing Units Air Cooled Condensing UnitsRefrigerant Loop Unit refrigerant charge Recommended refrigerant lines R22 or R407C sizes OD copperLine coupling sizes Refrigerant piping diagram Quick Connect Fittings Outdoor Air Cooled Condensing Units Unit Dimensions See TablePFCZ42A-L PFCZ41A-L See Table Outdoor air cooled condensing unit-top air discharge modelsPiping and electrical connections top air discharge 36-1/4 38-1/2152 Discharge Models SL-11081 PG 8AModel Net Weight 60 Hz 50 Hz Lbs kg Installing the Indoor Condensing UnitCentrifugal Air Cooled Condensing Units Indoor centrifugal condensing unitDetail of ceiling hanging bracket Ducting Airflow CFM CMHTon Dimensional Data Piping Connections Ton centrifugal air cooled condensing unit DPN000207Rev0Ton centrifugal air cooled condensing unit dimensional data DPN000226Rev0 Water Cooled Piping Considerations Water and Glycol Cooled Condensing UnitsCondenser Water Requirements Regulating ValvePiping Connections DPN000209Rev0 Ton water/glycol cooled condensing unit dimensional data DPN000228Rev0 R407C Refrigerant Temperature Gauge Pressure Psig KPaTemperature Pressure Gauge Psig KPa Calculating SubcoolingExample R407C Refrigerant R407C Refrigerant Page Iti NetTin That
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3000 specifications

The Liebert 3000 is a cutting-edge power protection solution designed to provide reliable and efficient backup power for critical applications. This uninterruptible power supply (UPS) system is engineered to safeguard sensitive electronic equipment from power disturbances, ensuring uninterrupted operations in data centers, telecommunications, and industrial environments.

One of the standout features of the Liebert 3000 is its high-efficiency design. With an efficiency rating of up to 94%, the system minimizes energy loss, resulting in lower operational costs and a reduced carbon footprint. This is particularly important in today's environmentally conscious climate, as organizations strive to meet sustainability goals while maintaining top-tier performance.

The Liebert 3000 employs advanced technologies to enhance its functionality. It incorporates online double-conversion technology, which provides a continuous supply of clean and regulated power. This technology ensures that connected loads receive stable voltage and frequency, shielding them from voltage spikes, sags, and outages. Additionally, the UPS offers features such as automatic battery testing, which helps ensure peak battery performance and reliability.

Another key characteristic of the Liebert 3000 is its modular design, allowing for flexible scalability. This means that organizations can easily expand the capacity of their UPS system as their power needs grow, without the need for extensive system overhauls. The modular architecture also facilitates simplified maintenance and reduces downtime, as individual modules can be serviced without interrupting power to the critical load.

The system is equipped with comprehensive monitoring and management capabilities. The Liebert 3000 provides real-time data on power usage, battery status, and system performance, enabling facility managers to make informed decisions and proactively address potential issues. The integration of remote management tools allows for seamless monitoring from anywhere, providing peace of mind for operators.

Overall, the Liebert 3000 combines high efficiency, advanced technology, and flexible design to deliver a robust power protection solution. Its reliability and performance make it a preferred choice for organizations seeking to protect their critical infrastructure while enhancing operational efficiency and sustainability. As businesses continue to rely on technology for their everyday operations, the Liebert 3000 stands out as a dependable safeguard against the uncertainties of power quality.
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