Sterling A0554831 manual Refrigerant Charge Determination

Page 23

Refrigerant Charge Determination. The approximate amount of refrigerant charge required by the system varies based on the total length of the refrigerant lines and the size of the chiller. Referring to Figure 5, determine the amount of charge based on the horsepower of the chiller and the amount of charge based on discharge and liquid line sizes and lengths. Add these three numbers together to find the final operating charge. The final operating charge must be verified by running the system and checking the liquid line sight glass.

Figure 5: Refrigerant Charge Determination

Chiller Condenser Charge

Field Installed Piping Charge

Horsepower

Lbs. of

 

R-22

5

5.9

7.5

6.1

10

10.8

15

12.6

20

21.2

25

24.2

30

40.2

35

41.2

40

50.2

Pipe O.D.

Discharge Line

Liquid Line

Inches

c R-22(Lbs.)

c R-22(Lbs.)

1/2”

-

7.2

5/8”

-

11.5

7/8”

1.6

24.0

1 1/8”

2.7

40.9

1 3/8”

4.0

62.2

1 5/8’

5.7

88.1

2 1/8”

10.0

153.0

2 5/8”

15.0

236.0

cBased on 100 feet of pipe, 100 ºF Liquid, 100 ºF Discharge

Oil Charge Determination. The remote air-cooled portable chillers are factory charged with the amount of oil required without field-installed piping. Additional oil required is dependent on the amount of additional refrigerant added.

Calculate the amount of additional oil required by using the following formula: Pints of oil (Sunisco 3GS) = lbs. of R-22 added for field installed piping / 100.

2-40 HP Portable Chillers

Chapter 3: Installation

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Contents Hp Portable Chillers Shipping Information Table of Contents Operation HP Portable Chillers Safety Symbols Used in this Manual SafetyHow to Use This Manual Responsibility Wear Safety Glasses and Work GlovesModels Covered in This Manual Functional DescriptionRefrigeration Circuit General DescriptionChilled Water Circuit Other Mechanical Features Standard FeaturesMechanical Features Other Features Electrical FeaturesRefrigeration Features Controller FeaturesHigh Pressure Cutout Safety Devices and InterlocksHigh/Low Thermostat Control Crankcase HeaterLow Pressure Cutout Fan Cycling SwitchPressure Switch Flow SwitchOptional Features Mounting Features Optional Pump Amperages Voltage Construction Full Load Amps Electrical Connections InstallationUncrating Water Treatment Considerations Process Water ConnectionsBypass Valve Considerations Galvanic Corrosion ConsiderationsAir-Cooled Chiller Condensers Condenser ConsiderationsWater-Cooled Chiller Condensers Remote Air-Cooled Chiller Condensers Page Equivalent Length in Feet for Valves and Fittings Refrigerant Charge Determination Chiller Condenser Charge Field Installed Piping ChargeCondenser Fan Three-Phase CompressorsChecking Motor Direction Water PumpsPart Number Description Water ReservoirEthylene Glycol and Propylene Glycol Curves Automatic Water Make-Up Option Initial Start-Up Microprocessor Controllers Panel Buttons, Indicator Lights, and SwitchesE5CK Controller Indicator Name Description OperationSterlco 2000 Controller Indicator Name Description Indicator Name DescriptionE5CK Graphic Panel See Figure Indicator Name DescriptionIndicator Name Description Eurotherm 3216 Controller Typical Graphic Panels With E5CK ControllerOptional Communications Setting the Process Water TemperaturesAuto-Tuning Start-upProgramming the Electronic High/Low Thermostat Thermostat Buttons Indicator Name DescriptionStage 1 Freeze Protection Stage 2 High Temperature ProtectionSelect Fahrenheit or Celsius Lubrication MaintenanceFilter Cleaning Air- and Remote Air-Cooled Chillers Maintaining the CondenserMaintaining the Evaporator Evaporator Process Piping Y-StrainerPreventative Maintenance Service HP Portable Chillers Troubleshooting TroubleshootingHP Portable Chillers Troubleshooting Credit Returns Warranty ReturnsAppendix Returned Material PolicySales Department Service DepartmentTechnical Assistance Parts DepartmentHp and 3 1/2 hp Air-Cooled Portable Chillers Drawings and SpecificationsHp and 7.5 hp Air-Cooled Portable Chillers Hp and 15 hp Air-Cooled Portable Chillers 20 hp, 25 hp, and 30 hp Air-Cooled Portable Chillers 28.3 22.0 41.7 Hp and 3.5 hp Water-Cooled Portable ChillersNominal Condenser water Nominal cooling Water Com In. NPT Height Width Depth Lbs 28.3 22.0 41.7Hp and 7.5 hp Water-Cooled Portable Chillers Hp and 15 hp Water-Cooled Portable Chillers 20 hp, 25 hp, and 30 hp Water-Cooled Portable Chillers 81.9 63.1 85.0 66.2 Hp Water-Cooled Portable Chillers39.5 39.1 98.4 Hp and 7.5 hp Remote Air-Cooled Portable Chillers 15.0 40.9 34.0 74.7 Hp and 15 hp Remote Air-Cooled Portable ChillersNominal cooling Com In. dia. ODS Pump Pumps Discharge Liquid Rated RunningTo/from No tank Tank, to/from Height Width Depth Lbs Hp through 40 hp Remote Air-Cooled Portable ChillersNominal cooling Com Refrigeration Pres Nom Connections‘A’in ‘B’in ‘C’in ‘D’in ODSin Remote Condenser Assembly ModelsHertz Pump Curves Pump Curves, Flow, and Pressure ConsiderationsDWG. No. S0554823 Calculating Chiller Nominal Flow and Pressure to Process Evaporator Water Pressure Drop TablesEvaporator Flow and Pressure Considerations Recirculation Pump SpecificationsRecirc. power Flow Rate Pressure Gpm Lpm Psi KPa Remote Air-Cooled Chiller Configurations Typical Ductwork for Air-Cooled Chillers Central and Gravity Return Piping with Standpipe Diagram Piping DiagramsTypical Piping Schematic, 2 and 3 1/2 hp Models HP Portable Chillers Appendix HP Portable Chillers Appendix Typical Piping Schematic, 5 hp through 40 hp, No-Pump Models HP Portable Chillers Appendix Typical Electrical Subpanel Electrical Schematics

A0554831 specifications

The Sterling A0554831 is a versatile and powerful tool designed for a range of applications, particularly in the industrial and construction sectors. Known for its robust construction and reliability, it has gained popularity among professionals and DIY enthusiasts alike.

One of the main features of the Sterling A0554831 is its durable build quality, which is designed to withstand harsh working conditions. The device typically features a high-strength casing that protects it from dust, moisture, and impact, ensuring longevity even in the most demanding environments. Its ergonomic design allows for comfortable handling, minimizing user fatigue during extended use.

In terms of performance, the Sterling A0554831 is equipped with advanced technologies that enhance its efficiency and functionality. The device is powered by a high-torque motor, delivering impressive power that enables it to tackle heavy-duty tasks with ease. The precision-engineered components ensure consistent performance, making it ideal for tasks that require accuracy and reliability.

Another significant characteristic of the Sterling A0554831 is its versatility. It typically comes with multiple settings and modes, allowing users to adjust the tool according to the specific requirements of their project. Whether drilling, cutting, or fastening, the tool can accommodate various tasks, making it a valuable addition to any toolkit.

Safety features are also a priority with the Sterling A0554831. Many models are equipped with overload protection and safety switches that prevent accidental activation, safeguarding the user during operation. Additionally, some variants may include LED indicators that provide real-time information about battery life or operational status, enhancing overall user experience.

In conclusion, the Sterling A0554831 stands out in the market for its combination of durability, performance, and versatility. With advanced technologies that cater to a wide range of applications and a design focused on user comfort and safety, this tool is an excellent choice for professionals looking for dependable and effective solutions in their work. Whether you are a seasoned professional or a casual DIYer, the Sterling A0554831 is well-equipped to handle your needs with ease and efficiency.
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