Page 2 - Shipping Information; Unpacking and Inspection; Do not; If the Shipment is Not Complete; contact the parts and service department; Hold the items until you receive shipping instructions
GP Series Portable Chillers ii Shipping Information Unpacking and Inspection You should inspect your equipment for possible shipping damage. Thoroughly check the equipment for any damage that might have occurred in transit, such as broken or loose wiring and components, loose hardware and mounting s...
Page 3 - Table of Contents
GP Series Portable Chillers iii Table of Contents CHAPTER 1: SAFETY ................................................................ 5 1-1 How to Use This Manual .............................................................................................. 5 Safety Symbols Used in this Manua...
Page 5 - GP Series Portable Chillers; Safety; How to Use This Manual; serial number and model number ready when ordering.
GP Series Portable Chillers Chapter 1: Safety 5 of 90 Chapter 1: Safety 1-1 How to Use This Manual Use this manual as a guide and reference for installing, operating, and maintaining your equipment. The purpose is to assist you in applying efficient, proven techniques that enhance equipment producti...
Page 6 - Warnings and Precautions
GP Series Portable Chillers Chapter 1: Safety 6 of 90 1-2 Warnings and Precautions Our equipment is designed to provide safe and reliable operation when installed and operated within design specifications, following national and local safety codes. To avoid possible personal injury or equipment dama...
Page 7 - Functional Description; Models Covered in This Manual; Typical Applications; Process heat load
GP Series Portable Chillers Chapter 2: Functional Description 7 of 90 Chapter 2: Functional Description 2-1 Models Covered in This Manual This manual provides operation, installation, and maintenance instructions for air-, water-and remote air-cooled portable chillers. Model numbers are listed on th...
Page 8 - Process Fluid Temperature; WARNING! - ACS Group does not warrant the freeze up of the evaporator
GP Series Portable Chillers Chapter 2: Functional Description 8 of 90 Process Fluid Temperature – The standard range for the leaving fluid temperature for this series of packaged chillers is 20°F to 80°F (-6.7°C to 26.7°C). When the process requires fluid temperatures below 45°F (27.2°C) it is imper...
Page 10 - Standard Features; Mechanical Features; Compressor –; Hermetic scroll compressors.; Evaporator –; Stainless steel copper brazed plate evaporators.
GP Series Portable Chillers Chapter 2: Functional Description 10 of 90 differential” value the controller will enable the compressor; if equipped with two compressors the controller will enable the one with the least amount of hours. The second compressor will be enabled if the leaving fluid tempera...
Page 12 - Safety Devices and Interlocks; Crankcase Heater
GP Series Portable Chillers Chapter 2: Functional Description 12 of 90 Multiple refrigeration access ports Liquid line shut-off ball valves Filter-dryer Sight glass Externally equalized thermal expansion valve Liquid line solenoid Compressor crankcase heater Controller Features Off-the-shelf micropr...
Page 14 - Optional Features
GP Series Portable Chillers Chapter 2: Functional Description 14 of 90 Flow Switch The thermal dispersion flow switch cutout device, mounted in the process piping, shuts down the chiller if it senses that the water/glycol flow rate through the evaporator has dropped below an acceptable level. The fl...
Page 15 - Stainless Steel Reservoir.
GP Series Portable Chillers Chapter 2: Functional Description 15 of 90 Stainless Steel Reservoir. Manufactured from 304 stainless steel. Mounting Features. Mounting rails with feet – GP20-GP105 indoor units. Standard on GP140-GP210 and all outdoor packaged units. Optional Operating Voltages. 208-230...
Page 16 - Installation; Uncrating; all four sides and top.; Electrical Connections
GP Series Portable Chillers Chapter 3: Installation 16 of 90 Chapter 3: Installation 3-1 Uncrating All models are shipped mounted on a skid, enclosed in a plastic wrapper, and open-crated on all four sides and top. 1. Pry the crating away from the skid. 2. Use a pry bar to remove the blocks securing...
Page 17 - -3 Process Water Connections; into the chiller to be cooled and re-circulated.; Figure 2: Typical GP20-50 Air Cooled Process Piping Connections; sizing piping and tooling water passageways.; Bypass Valve Considerations; warranty will be voided.
GP Series Portable Chillers Chapter 3: Installation 17 of 90 3-3 Process Water Connections All of our portable chillers have two chilled water connections. The chilled water supply, labeled “To Process” is the outlet for the chilled water leading to the process being cooled. The chilled water return...
Page 18 - Galvanic Corrosion Considerations; exchanger damage, and pump seal damage. Consult a qualified water; Condenser Considerations; Water-Cooled Chiller Condensers; Condenser Water Out.; Condenser water return is labeled “Condenser Water Out.” It is the
GP Series Portable Chillers Chapter 3: Installation 18 of 90 3-5 Galvanic Corrosion Considerations The materials used in the water circuit piping of these chillers are non-ferrous and react electro-chemically with ferrous metallic materials. Some water has dissolved minerals that greatly accelerate ...
Page 19 - Figure 3: Typical GP20-50 Water Cooled Condenser Connections; Air-Cooled Chiller Condensers; Condensing Air Temperature.; Our air-cooled portable chillers are designed to operate at a
GP Series Portable Chillers Chapter 3: Installation 19 of 90 Figure 3: Typical GP20-50 Water Cooled Condenser Connections Air-Cooled Chiller Condensers Air-cooled chillers use the surrounding air to cool the condenser. Install the chiller in an area where there is free passage of air for condensing ...
Page 20 - Interconnecting Refrigerant Piping.; contaminate the system.; Install a customer
GP Series Portable Chillers Chapter 3: Installation 20 of 90 Remote Air-Cooled Chiller Condensers Remote air-cooled portable chillers are shipped with nitrogen holding charge and a full charge of oil (excluding the amount needed for field piping). The remote air condenser is shipped with a dry nitro...
Page 21 - Sizing Refrigerant Lines.; refrigerant valves and fittings.; Figure 4: Equivalent Length in Feet for Valves and Fittings
GP Series Portable Chillers Chapter 3: Installation 21 of 90 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. S...
Page 24 - Figure 6: Discharge Line Sizing
GP Series Portable Chillers Chapter 3: Installation 24 of 90 Figure 6: Discharge Line Sizing Model Horizontal or Downflow Discharge Line Sizes (OD") Total Equivalent Length (Ft) 25 50 75 100 125 150 175 200 225 250 275 300 GPRC-20 5/8 5/8 5/8 5/8 3/4 3/4 3/4 3/4 3/4 3/4 3/4 7/8 GPRC-30 7/8 7/8 7...
Page 25 - Refrigerant Charge Determination.; The approximate amount of refrigerant charge required; Figure 7: Refrigerant Charge Determination; direct proportion to the actual length of the piping.; Oil Charge Determination.; The remote air-cooled portable chillers are factory charged with
GP Series Portable Chillers Chapter 3: Installation 25 of 90 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 7, determine the amount of cha...
Page 26 - Figure 8: Remote Condenser Configurations
GP Series Portable Chillers Chapter 3: Installation 26 of 90 Figure 8: Remote Condenser Configurations
Page 27 - Figure 9: Double Riser Detail; Checking Motor Direction; Do not switch leads at the motors, motor starters, or contactors.
GP Series Portable Chillers Chapter 3: Installation 27 of 90 Figure 9: Double Riser Detail 3-8 Checking Motor Direction All of our portable chillers have their motor rotations properly phased at the factory. If compressors, pumps, or fans are running in reverse rotation, disconnect and lock out the ...
Page 28 - Water Reservoir; amount of glycol for freeze protection could result in a damaged; Part Number Description; have an approved automatic water make-up system installed.
GP Series Portable Chillers Chapter 3: Installation 28 of 90 3-9 Water Reservoir The standard water reservoir is rotationally molded polyethylene with a removable lid. The tank is fully insulated to assist maintaining fluid temperature. All portable chillers shipped during the fall, winter, or sprin...
Page 29 - Figure 10: Suggested Overhead Piping Configuration
GP Series Portable Chillers Chapter 3: Installation 29 of 90 Figure 10: Suggested Overhead Piping Configuration
Page 30 - Figure 11: Ethylene Glycol and Propylene Glycol Curves
GP Series Portable Chillers Chapter 3: Installation 30 of 90 Figure 11: Ethylene Glycol and Propylene Glycol Curves Percent Glycol Curves for Freeze Protection -60.0 -50.0 -40.0 -30.0 -20.0 -10.0 0.0 10.0 20.0 30.0 40.0 0.0 10.0 20.0 30.0 40.0 50.0 60.0 % Glycol by Volume Ethylene Glycol Propylene G...
Page 31 - Automatic Water Make-Up Option; more information about these configurations.
GP Series Portable Chillers Chapter 3: Installation 31 of 90 3-10 Automatic Water Make-Up Option The chiller may be connected to an automatic make-up system if the optional package (pipe fittings, solenoid valve and 1/2” NPT city water make-up connection) is factory installed. Note: When the unit is...
Page 33 - Finishing Setup: Setting Up Passwords; Power Cable (highlighted in
GP Series Portable Chillers Chapter 3: Installation 33 of 90 Warning! Operating the chiller setpoint below 45°F (7°C) without the proper amount of glycol for freeze protection could result in a damaged evaporator. ACS Group does not warrant the freeze up of the evaporator under any circumstances. Th...
Page 35 - Operation; Panel Buttons, Indicator Lights, and Switches; Microprocessor Controller; Figure 12: Controller Display
GP Series Portable Chillers Chapter 4: Operation 35 of 90 Chapter 4: Operation 4-1 Panel Buttons, Indicator Lights, and Switches Microprocessor Controller The standard chillers use a microprocessor-based PID controller. The Carel PCO controller is located in the control enclosure. The Carel PGD1 Int...
Page 36 - Figure 13: Main Status Screen
GP Series Portable Chillers Chapter 4: Operation 36 of 90 Button Button Description Detailed description Menu Button Used to access the menus structure of the PGD interface On/Off Button Used to turn the entire chiller On or Off. The button is backlit and will turn amber when the chiller is On. Back...
Page 37 - Figure 15: Operator Setpoints Screen; Status Screens
GP Series Portable Chillers Chapter 4: Operation 37 of 90 Enter the established Operator Password by depressing the to move the position of the cursor, and then depressing the or button to increment or decrement the number. Once all of the numbers have been entered depress the to accept the password...
Page 38 - Figure 16: Main Chiller Status Screen; Depressing
GP Series Portable Chillers Chapter 4: Operation 38 of 90 Figure 16: Main Chiller Status Screen Depressing cycles through the following screens (shown below) – Analog I/O, Digital I/O, and Test. The Analog and Digital I/O screens provide status of all of the inputs and outputs for the controller. Th...
Page 41 - Access Levels
GP Series Portable Chillers Chapter 4: Operation 41 of 90 4-4 Access Levels The controller is setup to allow access to three distinct password groups: operator, supervisor, and service. Operator access allows the user to modify the Leaving Water Temp, Hi Temp Warning, and Hi Temp Fault setpoints. Su...
Page 43 - Figure 17: Menu Screen
GP Series Portable Chillers Chapter 4: Operation 43 of 90 Variable Description Access Level Operator Supervisor Tank Max Lvl Maximum tank level. Used to set the default high tank level alarm setpoints as well as the auto-water makeup off setpoint. x Low Level Fault Tank level that will activate Low ...
Page 44 - Figure 18: Operator Setpoints Screen
GP Series Portable Chillers Chapter 4: Operation 44 of 90 Enter the Operator Password by depressing the to move the position of the cursor, and then depressing the or button to increment or decrement the number. Once all of the numbers have been entered depress the to accept the password. The follow...
Page 45 - Configuration Settings; These configurations are described below.
GP Series Portable Chillers Chapter 4: Operation 45 of 90 4-6 Configuration Settings Within the Supervisor Menu the chiller can be configured if options are added in the field. These configurations are described below. Variable Description Access Level Operator Supervisor Tank Level Inst Activates/D...
Page 47 - Alarms; been shut down to protect the system.; Optional Communications
GP Series Portable Chillers Chapter 4: Operation 47 of 90 4-7 Alarms The controller is setup with multiple alarms, most of them configurable using the Supervisor password. Section 4-5 Controller Setpoints on page 41 gives a list of alarms that the controller is setup to display. The alarms are broke...
Page 48 - Maintenance; Lubrication; grease seal, eventually causing bearing failure.; Filter Cleaning; Water-Cooled Chillers; Coaxial Condensers
GP Series Portable Chillers Chapter 5: Maintenance 48 of 90 Chapter 5: Maintenance 5-1 Lubrication Grease all fan motors, and pump motors that do not have permanently sealed bearings. Be sure to use an all-purpose industrial grease with a temperature reference of 185 P F (85 P C). Remove the grease ...
Page 49 - Maintaining the Evaporator; warranty does not cover chiller failures from a dirty evaporator.; Preventative Maintenance Service
GP Series Portable Chillers Chapter 5: Maintenance 49 of 90 Caution! Do not use steam or water over 140ºF (60ºC) to clean a condenser unless you are monitoring the refrigeration circuit for excessive pressure with gauges. Only a trained technician should use this method. 5-4 Maintaining the Evaporat...
Page 50 - Troubleshooting; injusry; Identifying the Cause of a Problem; , and follow the suggested solution to correct the alarm condition.
GP Series Portable Chillers Chapter 6: Troubleshooting 50 of 90 Chapter 6: Troubleshooting Many problems that can occur while operating the chiller can be avoided by following the recommended installation, operation, and maintenance outlined within this manual. If you do have a problem this Chapter ...
Page 58 - Appendix; Returned Material Policy; Credit Returns; Warranty Returns; Technical Assistance; Parts Department
GP Series Portable Chillers Chapter 7: Appendix 58 of 90 Chapter 7: Appendix 7-1 Returned Material Policy Credit Returns Prior to the return of any material, authorization must be given by the manufacturer . A RMA number will be assigned for the equipment to be returned. Reason for requesting the re...
Page 59 - Service Department; Contract Department
GP Series Portable Chillers Chapter 7: Appendix 59 of 90 The ACS Customer Service Group will provide your company with genuine OEM quality parts manufactured to engineering design specifications, which will maximize your equipment’s performance and efficiency. To assist in expediting your phone or f...
Page 60 - Specifications; Air-Cooled Portable Chillers
GP Series Portable Chillers Chapter 7: Appendix 60 of 90 Specifications Air-Cooled Portable Chillers Nominal operating parameters for air-cooled models are 50ºF (10ºC) leaving water temperature at 2.4 gpm per ton (9.1 lpm per 3.517 kW) with 95ºF (35ºC) ambient air. For 50 Hz applications , multiply ...
Page 70 - Pump Curves, Flow, and Pressure Considerations; 0 Hertz Pump Curves
GP Series Portable Chillers Chapter 7: Appendix 70 of 90 7-3 Pump Curves, Flow, and Pressure Considerations 60 Hertz Pump Curves ACS CHILLER PUMPS 20-50 ALL 60 Hz HP GP 20 GP 30 GP 40 GP 50 1.5 CDU 70/315D3G STD 2 CDU 70/520D3G OPT STD STD 3 CDU 120/530D3G OPT OPT STD 3 OPT 5 2CDU 200/506 OPT OPT OP...
Page 74 - Calculating Chiller Nominal Flow and Pressure to Process; Obtain the flow reading from the appropriate pump curve.; subtract; the one-pump pressure drop listed in the above table using the
GP Series Portable Chillers Chapter 7: Appendix 74 of 90 Pure Water at >40°F GPXC-20 GPXC-30 GPXC-40 GPXC-50 GPM DP (PSI) GPM DP (PSI) GPM DP (PSI) GPM DP (PSI) 0.5X Nominal 6 1.7 9 1.7 12 1.6 18 1.8 1.0X Nominal 12 5.9 18 6.1 24 5.8 36 6.4 2.0X Nominal 24 21.4 36 21.9 48 20.7 72 23.3 GPXC-70 GPX...
Page 75 - Remote Air-Cooled Chiller Configurations
GP Series Portable Chillers Chapter 7: Appendix 75 of 90 7-4 Remote Air-Cooled Chiller Configurations
Page 76 - Figure 19: Double Riser Detail
GP Series Portable Chillers Chapter 7: Appendix 76 of 90 Figure 19: Double Riser Detail
Page 77 - Typical Ductwork for Air-Cooled Chillers; when discharging air outside.
GP Series Portable Chillers Chapter 7: Appendix 77 of 90 7-5 Typical Ductwork for Air-Cooled Chillers Model Fan 60 Hz Discharge air volume 50 Hz Discharge air volume HP kW CFM m 3 /min CFM m 3 /min GPAC-20 0.5 0.4 4230 120 3525 100 GPAC-30 1.0 0.7 6343 180 5286 150 GPAC-40 1.0 0.7 8458 240 7048 200 ...
Page 79 - Piping Diagrams
GP Series Portable Chillers Chapter 7: Appendix 79 of 90 7-6 Piping Diagrams