ECN No Copyright 2010 All rights reserved
GP Series Portable Chillers
Part Number Bulletin Number SC2-620.2 Effective 1/12/2010
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Flow Switch
Table of Contents
CHAPTER 1 SAFETY
CHAPTER 3 INSTALLATION
CHAPTER 6 TROUBLESHOOTING
CHAPTER 5 MAINTENANCE
CHAPTER 7 APPENDIX
1-1 How to Use This Manual
Chapter 1 Safety
Safety Symbols Used in this Manual
SYSTEM. This must be performed by a qualified service technician only
1-2 Warnings and Precautions
9 Wear SAFETY GLASSES and WORK GLOVES
9 Use care when LOADING, UNLOADING, RIGGING, or MOVING this equipment
Chilled Water Circuit
Chapter 2 Functional Description
2-1 Models Covered in This Manual
2-2 General Description
Electrical Features
2-3 Standard Features
Mechanical Features
Other Mechanical Features
Other Features
2-4 Safety Devices and Interlocks
Refrigeration Features
Controller Features
High Pressure Cutout
2-5 Optional Features
Low Pressure Cutout no switch but done through the transducer
Flow Switch
Mounting Features
Full Load Amps
Figure 1 Optional Pump Amperages
Voltage
Construction
3-1 Uncrating
Chapter 3 Installation
3-2 Electrical Connections
3-6 Water Treatment Considerations
3-3 Process Water Connections
3-4 Bypass Valve Considerations
3-5 Galvanic Corrosion Considerations
Remote Air-Cooled Chiller Condensers
3-7 Condenser Considerations
Water-Cooled Chiller Condensers
Air-Cooled Chiller Condensers
Note Piping should be type “L” or type “K” refrigerant grade copper tubing only. Proper sizing and installation has a significant effect on system performance, reliability, and safety
GP Series Portable Chillers
Chapter 3 Installation
17 of
Angle
Figure 2 Equivalent Length in Feet for Valves and Fittings
Figure 3 Liquid Line Sizing
Line Size
20 TON CIRCUIT
10 TON CIRCUIT
Total Equiv
Length Ft
50 TON CIRCUIT
30 TON CIRCUIT
Total Equiv
Length Ft
21 of
Figure 4 Discharge Line Sizing
Chapter 3 Installation
GP Series Portable Chillers
Figure 5 Refrigerant Charge Determination
Condenser Fan
Three-Phase Compressors
3-8 Checking Motor Direction
Water Pumps
Part Number
3-9 Water Reservoir
Description
Example 45F set point minus 20F = 25F
Figure 6 Ethylene Glycol and Propylene Glycol Curves
From Figure 28, 25F equates to 10% by volume of glycol required
pump
3-10 Automatic Water Make-Up Option
3-12 Finishing Setup Setting Up Passwords
3-11 Initial Start-Up
Chapter 3 Installation
To set password protections
1. Press the button to access the menu screen
or the following screen for the Supervisor Password
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6. Press to accept the Password and move to the next line
Chapter 3 Installation
GP Series Portable Chillers
Figure 7 - Controller Display
4-1 Panel Buttons, Indicator Lights, and Switches
Chapter 4 Operation
Microprocessor Controller
Figure 8 - Main Status Screen
4-2 Initial Start-up
Figure 9 - Menu Screen
Figure 10 - Operator Setpoints Screen
4-3 Status Screens
Figure 11 - Main Status Screen
Chapter 4 Operation
GP Series Portable Chillers
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4-4 Access Levels
Figure 12 - Menu Screen
Controller Setpoints
4-7 Optional Communications
4-6 Alarms
Figure 13 - Operator Setpoints Screen
Chapter 4 Operation
GP Series Portable Chillers
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Chapter 4 Operation
GP Series Portable Chillers
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5-3 Maintaining the Condenser
Chapter 5 Maintenance
5-2 Filter Cleaning
5-1 Lubrication
5-4 Maintaining the Evaporator
5-6 Preventative Maintenance Service
5-5 Evaporator Process Piping Y-Strainer
Chapter 6 Troubleshooting
GP Series Portable Chillers
Chapter 6 Troubleshooting
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Credit Returns
Warranty Returns
Chapter 7 Appendix
7-1 Returned Material Policy
Sales Department
Service Department
7-2 Technical Assistance
Parts Department
G-PAC-30
7-3 Specifications
Air-Cooled Portable Chillers
G-PAC-20
G-PAC-40
GP Series Portable Chillers
Chapter 7 Appendix
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GPAC-70
GP Series Portable Chillers
Chapter 7 Appendix
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GPAC-105
GP Series Portable Chillers
Chapter 7 Appendix
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GPAC-175
GP Series Portable Chillers
Chapter 7 Appendix
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G-PWC-20
Water-Cooled Portable Chillers
G-PWC-30
G-PWC-40
GP Series Portable Chillers
Chapter 7 Appendix
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GPWC-70
GP Series Portable Chillers
Chapter 7 Appendix
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GPWC-105
GP Series Portable Chillers
Chapter 7 Appendix
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GPWC-175
GP Series Portable Chillers
Chapter 7 Appendix
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Head ft
7-4 Pump Curves, Flow, and Pressure Considerations
5-15 ALL 60 Hz
60 Hertz Pump Curves
Head ft
70-210 ALL 60 Hz
Capacity Gal/min
Head m
5-15 ALL 50 Hz
50 Hertz Pump Curves
ACS CHILLER PUMPS
Capacity liter/min
20-50 ALL 50 Hz
ACS CHILLER PUMPS
Head m
Pure Water at 40F
Calculating Chiller Nominal Flow and Pressure to Process
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7-5 Remote Air-Cooled Chiller Configurations
GP Series Portable Chillers
Chapter 7 Appendix
7-6 Typical Ductwork for Air-Cooled Chillers
Chapter 7 Appendix
GP Series Portable Chillers
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7-7 Piping Diagrams
GP Series Portable Chillers
Chapter 7 Appendix
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