Sterling 882.93092.01 manual Towards the condenser

Page 21

Sizing Refrigerant Lines. To determine field installed liquid and discharge line sizes, first establish the equivalent length of pipe for each line, valve, and elbow. Chiller capacity and leaving water temperature range is also required. See Figure 4 on page 21 for lengths of refrigerant valves and fittings.

Liquid Line Sizing. The liquid line should be sized as small as possible while maintaining acceptable pressure drop to minimize the refrigerant charge. Liquid line risers must not exceed 15 feet from the base of the air-cooled condenser. Horizontal runs do not require a pitch. Insulation is not required unless the line is installed in a high ambient area, i.e., boiler room or on a roof. Install a liquid line-charging valve to facilitate refrigerant charging. See Figure 5 on page 21 for sizing information. See Figure 7 on page 25 for charge determination.

Discharge Line Sizing. Discharge line sizing is based on the velocity required for sufficient oil return back to the compressor. See Figure 4: Equivalent Length in Feet for Valves and Fittingson page 24 for discharge line sizing.

 

Note:

For horizontal runs, the discharge line should be pitched downward, in the

 

 

 

direction of flow, at a rate of 1/2” for every 10 feet. This will allow oil to flow

 

 

 

towards the condenser.

Figure 4: Equivalent Length in Feet for Valves and Fittings

 

 

 

 

 

 

 

Line Size

 

Angle

 

Short

Long

OD (inches)

 

Valve

 

Radius EL

Radius EL

3/8

 

24

 

4

2.8

 

1/2

 

24

 

4.7

3.2

 

5/8

 

25

 

5.7

3.9

 

3/4

 

25

 

6.5

4.5

 

7/8

 

28

 

7.8

5.3

 

1-1/8

 

29

 

2.7

1.9

 

1-3/8

 

33

 

3.2

2.2

 

1-5/8

 

34

 

3.8

2.6

 

2-1/8

 

39

 

5.2

3.4

 

2-5/8

 

44

 

6.5

4.2

 

Figure 5: Liquid Line Sizing

GPRC-20

 

 

Liquid Line Size (OD")

 

Total Equiv.

Horizontal

 

 

 

or

Upflow

Upflow

Upflow

Length (Ft)

Downflow

1-5 Ft

6-10 Ft

11-15 Ft

25

1/2

1/2

1/2

1/2

50

1/2

1/2

1/2

1/2

75

1/2

1/2

1/2

1/2

100

1/2

1/2

1/2

5/8

125

1/2

1/2

1/2

5/8

150

1/2

1/2

5/8

5/8

175

1/2

5/8

5/8

5/8

200

1/2

5/8

5/8

5/8

225

1/2

5/8

5/8

5/8

250

5/8

5/8

5/8

5/8

275

5/8

5/8

5/8

5/8

300

5/8

5/8

5/8

5/8

GPRC-30

 

 

Liquid Line Size (OD")

 

Total Equiv.

Horizontal

 

 

 

or

Upflow

Upflow

Upflow

Length (Ft)

Downflow

1-5 Ft

6-10 Ft

11-15 Ft

25

5/8

5/8

5/8

5/8

50

5/8

5/8

5/8

5/8

75

5/8

5/8

5/8

5/8

100

5/8

5/8

5/8

5/8

125

5/8

5/8

5/8

5/8

150

5/8

5/8

5/8

5/8

175

5/8

5/8

5/8

3/4

200

5/8

5/8

5/8

3/4

225

5/8

5/8

5/8

3/4

250

5/8

5/8

3/4

3/4

275

5/8

5/8

3/4

3/4

300

5/8

5/8

3/4

3/4

GP Series Portable Chillers

Chapter 3: Installation

21 of 90

Page 20 Page 22
Image 21
Page 20 Page 22
Contents GP Series Portable Chillers Shipping Information Table of Contents Chapter Troubleshooting Safety How to Use This ManualSafety Symbols Used in this Manual Responsibility  Wear Safety Glasses and Work GlovesModels Covered in This Manual Functional DescriptionGeneral Description Typical ApplicationsChilled Water Circuit System Control Refrigeration CircuitMechanical Features Standard FeaturesRefrigeration Features Electrical FeaturesController Features Safety Devices and InterlocksOther Features Crankcase HeaterHigh Pressure Cutout Optional Features Flow SwitchRemote Start/Stop Interlock Mounting Features Installation UncratingElectrical Connections Bypass Valve Considerations Process Water ConnectionsWater Treatment Considerations Galvanic Corrosion ConsiderationsCondenser Considerations Water-Cooled Chiller CondensersAir-Cooled Chiller Condensers Typical GP20-50 Water Cooled Condenser ConnectionsRemote Air-Cooled Chiller Condensers Towards the condenser GPRC-40 GPRC-105 Discharge Line Sizing Refrigerant Charge Determination Remote Condenser Configurations Checking Motor Direction Three-Phase CompressorsWater Pumps Condenser FanPart Number Description Water ReservoirSuggested Overhead Piping Configuration Pump Initial Start-Up Automatic Water Make-Up OptionPage Finishing Setup Setting Up Passwords Supervisor Password to complete the security setup Panel Buttons, Indicator Lights, and Switches OperationMicroprocessor Controller Main Status Screen Operator Setpoints Screen Status ScreensMain Chiller Status Screen GP Series Portable Chillers Operation Page Controller Setpoints Access LevelsGP Series Portable Chillers Operation Menu Screen Operator Setpoints Screen These configurations are described below Configuration SettingsWEB Optional Communications AlarmsFilter Cleaning MaintenanceLubrication Maintaining the CondenserPreventative Maintenance Service Maintaining the EvaporatorEvaporator Process Piping Y-Strainer Identifying the Cause of a Problem TroubleshootingGP Series Portable Chillers Troubleshooting SC/W System fault GP Series Portable Chillers Troubleshooting Problem Possible cause Solution Non-Controller Related IssuesGP Series Portable Chillers Troubleshooting GP Series Portable Chillers Troubleshooting Appendix Returned Material PolicyTechnical Assistance Service Department Sales DepartmentContract Department Air-Cooled Portable Chillers SpecificationsGPAC-40 GPAC-70 GPAC-105 GPAC-175 GPWC-20 Water-Cooled Portable ChillersGPWC-40 GPWC-70 GPWC-105 GPWC-175 Hertz Pump Curves Pump Curves, Flow, and Pressure ConsiderationsALL 60 Hz ALL 50 Hz ALL 50 Hz Calculating Chiller Nominal Flow and Pressure to Process Remote Air-Cooled Chiller Configurations Double Riser Detail Typical Ductwork for Air-Cooled Chillers Water column = Pascal GP Series Portable Chillers Appendix Piping Diagrams GP Series Portable Chillers Appendix GP Series Portable Chillers Appendix GP Series Portable Chillers Appendix GP Series Portable Chillers Appendix GP Series Portable Chillers Appendix GP Series Portable Chillers Appendix GP Series Portable Chillers Appendix GP Series Portable Chillers Appendix GP Series Portable Chillers Appendix GP Series Portable Chillers Appendix GP Series Portable Chillers Appendix

882.93092.01 specifications

The Sterling 882.93092.01 is an impressive timepiece that exemplifies the perfect blend of artistry and precision engineering. This elegant watch is a testament to the craftsmanship that defines the Sterling brand, making it a sought-after choice for both watch aficionados and casual wearers alike.

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Overall, the Sterling 882.93092.01 is more than just a timekeeping device; it is a statement piece that showcases exceptional design, reliable technology, and outstanding craftsmanship. Whether worn at special occasions or in everyday scenarios, this watch is bound to impress and stand the test of time.
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