Emerson 3000 installation manual Fan Speed Control Systems, Variable Fan Speed Control Piping

Page 32

Air-Cooled Models—Self-Contained Compressor

Table 6

Equivalent lengths (feet) for various pipe fittings

 

 

 

 

 

 

 

 

 

 

 

Copper Pipe

90 Degree

90 Degree

45 Degree

 

Gate

Globe

Angle

O.D. in.

 

Elbow Copper

Elbow Cast

Elbow

Tee

Valve

Valve

Valve

1/2

 

0.8

1.3

0.4

2.5

0.26

7.0

4.0

5/8

 

0.9

1.4

0.5

2.5

0.28

9.5

5.0

3/4

 

1.0

1.5

0.6

2.5

0.3

12.0

6.5

7/8

 

1.45

1.8

0.8

3.6

0.36

17.2

9.5

1-1/8

 

1.85

2.2

1.0

4.6

0.48

22.5

12.0

1-3/8

 

2.4

2.9

1.3

6.4

0.65

32.0

16.0

1-5/8

 

2.9

3.5

1.6

7.2

0.72

36.0

19.5

Refrigerant trap = 4 times equivalent length of pipe per this table.

 

 

 

 

Table 7

Indoor unit refrigerant charge lb (kg)

 

 

R407C

 

 

 

 

 

 

 

Approximate Charge

 

Model

 

lb (kg)

 

42A/40A

 

0.9 (0.4)

 

 

 

 

 

67A/65A

 

1.4 (0.6)

 

 

 

 

 

Table 8

Line charges - refrigerant per 100 ft. (30 m) of Type “L” copper tube

 

 

 

 

 

 

 

 

 

R407C

 

 

 

 

 

 

 

 

Liquid Line

Hot Gas Line

 

O.D.

 

lb (kg)

lb (kg)

 

1/2"

 

7.3

(3.3)

1.3 (0.6)

 

 

 

 

 

 

5/8"

 

11.7 (5.3)

2.1 (1.0)

 

 

 

 

 

 

3/4"

 

16.6 (7.5)

3.0 (1.4)

 

 

 

 

 

 

 

7/8"

 

24.4

(11.1)

4.4 (2.0)

 

 

 

 

 

 

 

Table 9

Condenser refrigerant (per serial tag)

 

 

 

 

 

R407C

 

 

 

 

 

Approximate Charge

 

 

lb (kg)

 

 

 

 

 

 

 

Liebert

 

Model

Fan Speed

Lee-Temp*

 

083

8 (3)

25 (12)

 

 

 

 

 

104

9 (4)

37 (17)

 

 

 

 

 

165

15 (6.8)

50 (22.7)

 

 

 

 

 

*Charge includes the receiver charge.

3.4Fan Speed Control Systems

The Variable Fan Speed Control systems (FSC & VFD) uses pressure-activated electronic fan speed control systems and remotely located thermostat(s) to ensure operation at ambient temperatures as low as 0°F (-18°C). For this ambient temperature range, the VFD Control Condenser must be used with digital scroll indoor units and can be used for energy savings with any Liebert Challenger 3000 unit.

Variable Fan Speed Control Piping

A discharge line and a liquid line must be field-installed between the indoor unit and the outdoor con- denser. See Figures 15 and 16 for details.

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Contents Liebert Challenger 3000 with iCOM Page Table of Contents R407C Refrigerant Chilled Water ModelsSplit System Models Figures Tables Important Safety Instructions Page System Descriptions Split Systems Prop Fan Air-CooledCentrifugal Fan Air-Cooled Water-CooledRoom Preparation Equipment InspectionLocation Considerations Equipment HandlingUnit net weight Handling With SkidRemoval of Skid Model Lb kgUpflow BU cabinet dimensions Floor Cutout Dimensions Piping connection size Piping ConsiderationsDrain Line Piping Outlet Locations Piping connections for air-cooled units Upflow models Installation Applicable to all Models Installation Applicable to all Models 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 connections Upflow Models with Liebert iCOM Downflow Models with Liebert iCOMPlenum Installation Balancing the Air DistributionUnder-Floor Discharge Systems Ducted ApplicationsChecklist for Completed Installation Low Voltage Condenser LocationLine Voltage Air-cooled condenser statistics Refrigerant Piping Recommended line sizes OD copper inchesFan Speed Control Systems Variable Fan Speed Control PipingEquivalent lengths feet for various pipe fittings Indoor unit refrigerant charge lb kgVariable Fan Speed Control Materials Supplied Fan speed suction pressure transducer settings Variable Fan Speed ChargingFactory Piping Field Piping Factory Piping Liebert Lee-Temp Controlled Materials Supplied Lee-Temp Leak Check and Evacuation ProcedureLiebert Lee-Temp Piping Lee-Temp suction pressure transducer settings Lee-Temp ChargingLee-Temp Receiver Refrigerant Level 407CFactory Piping Optional Piping Pressure Relief Condenser Factory Piping Field Piping Factory Piping Field Piping Adjustment Water Regulating ValveRefrigerant control settings psi kPa Motorized Ball Valve-Digital Scroll CompressorsManual Flushing ControlManual Control StartupLocation Pump and Drycooler Drycooler InstallationDrycooler Location Glycol Piping General GuidelinesRoom dew point temperatures Dry Bulb Wet Bulb Relative Dew Point HumidityVolume in standard Type L copper piping Filling InstructionsExpansion Tanks, Fluid Relief Valves and Other Devices Preparing the System for FillingGlycol Solutions @ 50F 10C Filling the SystemEthylene glycol concentrations For expansion tank dimensions, see on 43-3/16 43-9/16 110 5mmSee Note 30-1/4 483mm 1097mmMounting hole dimensional data Drycooler dataGlycol pump data Pump Pump Suction Pump Discharge ConnectionField Piping General arrangement-Glycol-cooled models with digital scroll Field Piping Factorypiping Field Piping 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 Recommended refrigerant lines R407C sizes OD copper Unit refrigerant chargeLine charges refrigerant per 100 ft m of Type L copper tube Model Line Size Coupling Torque Tons OD Cu, Lb-ft Quick Connect FittingsLine coupling sizes 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-LineInstalling the Indoor Condensing Unit Model Net Weight 60 Hz 50 Hz Lb kg MC40A MC39ACentrifugal Air-Cooled Condensing Units Indoor centrifugal condensing unitDucting Airflow CFM CMHPiping Connections Wire connections from evaporator DPN000207Rev0 ModTon centrifugal air-cooled condensing unit dimensional data AIR Cooled Water Cooled Water and Glycol-Cooled Condensing Units Piping ConsiderationsCondenser Water Requirements Regulating ValveGlycol Systems Ton water/glycol-cooled condensing unit24V GND Ton water/glycol-cooled condensing unit dimensional data WATER/GLYCOL Temperature Gauge Pressure Psig KPa R407C RefrigerantExample Temperature Pressure Gauge Psig KPaCalculating Subcooling R407C Refrigerant R407C Refrigerant Page Ne t Iti Ti nThat Te r Ys t
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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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