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