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