Emerson 3000 Liebert Lee-Temp Piping, Liebert Lee-Temp Controlled Materials Supplied

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Air-Cooled Models—Self-Contained Compressor

3.5Air-Cooled Condenser with Liebert Lee-Temp™“Flooded Condenser” Head Pressure Control System

The Liebert Lee-Temp system consists of a modulating type head pressure control valve and insulated receivers with heater pads to ensure operation at ambient temperatures as low as -30°F (-34.4°C). The Liebert Lee-Temp system can be used with any compressor choice.

Liebert Lee-Temp Piping

A discharge line and a liquid line must be field-installed between the indoor unit and the outdoor condenser. See Figures 17 and 18 for details.

Liebert Lee-Temp Controlled Materials Supplied

•Built-in, pre-wired condenser control box

•Air-Cooled condenser

•Piping access cover to be reinstalled when piping is complete (models with one to four fans only)

•Bolts—four per leg (3/8" x 5/8")

•Terminal block for two-wire, 24V interlock connection between unit and condenser

•Condenser legs—four with 1-fan, six on two-, three- and six-fan models and eight on four- and eight-fan models

•Bolts—six per receiver (3/8" x 1")

•Liebert Lee-Temp system:

•Insulated storage receiver

•Head pressure control valve with integral check valve

•Service valve

•Pressure relief valve

•Liquid level sight glass

•Check valve

NOTE

Liebert Lee-Temp heater pads require a separate, continuous electrical source. See nameplate on unit for proper voltage.

Liebert Lee-Temp Leak Check and Evacuation Procedure

Proper leak check and evacuation can be accomplished only with all system solenoid valves open and check valves accounted for.

NOTE

Systems with scroll or digital scroll compressors include a factory-installed check valve and an additional downstream Schrader valve with core in the compressor discharge line. Proper evacuation of the condenser side of the compressor can be accomplished only using the downstream Schrader valve. See piping schematic (Figure 18).

1.If unit power is available, open the unit liquid line solenoid valves using the evacuation function in the diagnostic section of the Liebert iCOM® control. If unit power is not available, a field- supplied 24VAC / 75VA power source must be directly connected to each of the unit solenoid valves.

2.Attach a jumper hose from the service valve fitting on the outlet of the receiver and the Schrader fitting on the discharge header of the condenser. Front-seat the service valve approximately two (2) turns.

3.For scroll and digital scroll compressors, connect refrigerant gauges to the suction rotalock valves and discharge line Schrader valves (see Note above).

4.Open the service valves and place a 150 PSIG (1034 kPa) of dry nitrogen with a tracer of refrigerant. Check system for leaks with a suitable leak detector.

5.After completion of leak testing, release the test pressure (per local code) and pull an initial deep vacuum on the system with a suitable pump.

Liebert® Challenger 3000™

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Contents Liebert Challenger 3000 with Liebert iCOM Page Table of Contents Chilled Water Models Split System ModelsFigures R407C RefrigerantTables Important Safety Instructions Liebert Challenger Important Safety Instructions System Descriptions Centrifugal Fan Air-Cooled Split SystemsProp Fan Air-Cooled Water-CooledLocation Considerations Room PreparationEquipment Inspection Equipment HandlingRemoval of Skid Unit net weightHandling With Skid Model Lb. kgUpflow BU cabinet dimensions Floor Cutout Dimensions Piping connection size Piping ConsiderationsDrain Line Piping connections for air-cooled units Downflow models Chilled Water Unit Connection Sizes-inPiping connections for air-cooled units Upflow models Installation Applicable to all Models Condensate Pump Line 1/2 OD CU used only Installation Applicable to all Models Installation Applicable to all Models Installation Applicable to all Models Installation Applicable to all Models Humidifier Supply Water-Optional Infrared Facility Fluid and Piping MaintenanceElectrical Connections Terminal Block For Customer Connectons Upflow Models with Liebert iCOM Downflow Models with Liebert iCOMUnder-Floor Discharge Systems Plenum InstallationBalancing the Air Distribution Ducted ApplicationsChecklist for Completed Installation Low Voltage Condenser LocationLine Voltage Liebert Lee-Tempheater Common to all models. See below for key to a dimensionAir-cooled condenser statistics 43-9/16 51-7/16Refrigerant Piping Condenser refrigerant per serial tag Recommended line sizes OD copper, inchesEquivalent lengths feet for various pipe fittings Variable Fan Speed Control Materials Supplied Fan Speed Control SystemsVariable Fan Speed Control Piping Fan speed suction pressure transducer settings Variable Fan Speed ChargingDPN000349 Rev DPN001726 Liebert Lee-Temp Controlled Materials Supplied Liebert Lee-Temp Leak Check and Evacuation ProcedureLiebert Lee-Temp Piping 407C Liebert Lee-Temp suction pressure transducer settingsLiebert Lee-TempCharging Factory Piping Optional Piping Field Piping DPN001725 Condenser Factory Piping Field Piping Factory Piping Adjustment Water Regulating ValveManual Flushing Refrigerant control settings psi kPaMotorized Ball Valve-Digital Scroll Compressors ControlLocation Control MethodStartup Manual ControlPump and Drycooler Drycooler InstallationDrycooler Location Glycol Piping General GuidelinesRoom dew point temperatures Dry Bulb Wet Bulb Relative Dew Point HumidityExpansion Tanks, Fluid Relief Valves and Other Devices Volume in standard Type L copper pipingFilling Instructions Preparing the System for FillingGlycol Solutions Ethylene glycol concentrationsFilling the System See Note 30-1/4 For expansion tank dimensions, see on43-3/16 43-9/16 110 5mm 483mm 1097mmGlycol pump data Mounting hole dimensional dataDrycooler data Pump Pump Suction Pump Discharge Connection,Field Piping General arrangement-Glycol-cooled models with digital scroll Expansion Tank Field-Installed at Pressure Motor Ball Valve-Digital Scroll Compressors Testing Valve FunctionGlycol Regulating Valve Chilled Water Models WAY Valve Air-Cooled Condensing Units Water/Glycol-Cooled Condensing UnitsRefrigerant Loop Model Lb kg Unit refrigerant chargeR407C Charge Line coupling sizes Line charges refrigerant per 100 ft m of Type L copper tubeRecommended refrigerant lines R407C sizes OD copper Quick Connect Fittings Unit Dimensions See Table Outdoor Air-Cooled Condensing UnitsPFCZ42A-L PFCZ41A-L Outdoor air-cooled condensing unit-top air discharge models See Table152 Piping and electrical connections top air discharge36-1/4 38-1/2 Field-supplied unit disconnect switch Ton High Ambient Ton Quiet-LineCentrifugal Air-Cooled Condensing Units Installing the Indoor Condensing UnitModel Net Weight 60 Hz 50 Hz Lb kg MC40A MC39A Indoor centrifugal condensing unitDucting Airflow CFM CMHPiping Connections Rev0 Wire connections from evaporatorDPN000207 ModTon centrifugal air-cooled condensing unit dimensional data AIR Cooled Water Cooled Ton Connection Sizes Water and Glycol-Cooled Condensing UnitsPiping Considerations Condenser Water RequirementsGlycol Systems Ton water/glycol-cooled condensing unitDPN000209 Ton water/glycol-cooled condensing unit dimensional data WATER/GLYCOL Temperature Gauge Pressure Psig KPa R407C RefrigerantExample Temperature Pressure Gauge Psig KPaCalculating Subcooling Page Twor k Ne tPpor t Is t Care
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3000 specifications

The Emerson 3000 is a cutting-edge control system designed to enhance the efficiency, reliability, and precision of industrial operations. Employed across various sectors such as oil and gas, pharmaceutical, food and beverage, and power generation, the Emerson 3000 has gained recognition for its robustness and versatility.

One of the main features of the Emerson 3000 is its advanced process control capability. With integrated control algorithms, it can optimize complex processes in real-time, resulting in significant improvements in production rates and reduced operational costs. The system's predictive analytics capabilities enable operators to anticipate equipment failures and maintenance needs, allowing for proactive management and minimizing downtime.

The Emerson 3000 features a modular architecture, providing flexibility for scaling and customization. Operators can easily tailor the system to fit specific application needs, whether it requires additional control loops or integration with other systems. This adaptability is particularly beneficial for facilities planning for future expansions or modifications.

Another technology highlight of the Emerson 3000 is its seamless integration with the latest Internet of Things (IoT) advancements. The system is designed to communicate effectively with a variety of smart devices and sensors, harnessing data to create insightful analytics that drive operational excellence. This connectivity empowers businesses to leverage big data for improved decision-making and increased agility.

Additionally, the Emerson 3000 incorporates state-of-the-art cybersecurity measures to safeguard critical data and operations. With built-in security protocols and regular updates, the system protects against emerging cyber threats, ensuring the integrity of the control network.

User experience is also a focal point of the Emerson 3000. The intuitive graphical user interface presents complex data in a user-friendly format, making it easier for operators to monitor system performance and respond to alerts quickly. This ease of use contributes to enhanced safety and operational efficiency.

In summary, the Emerson 3000 represents a fusion of advanced process control, modular design, IoT connectivity, robust cybersecurity, and user-centric interface, making it an ideal choice for industries seeking to enhance their operational performance while adapting to ever-evolving technological landscapes.
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