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ACS GP210 Operation And Instruction Manual

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GP SERIES PORTABLE CHILLERS
OPERATION AND INSTRUCTION MANUAL
GP20, GP30, GP40, GP50, GP70, GP90, GP105, GP140, GP175,
GP210
Part Number: 882.12047.00
Revision: 12/2/2021
<<Insert name of product>><< insert part number>> • << 9/11/2018>>
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  • Page 1 GP SERIES PORTABLE CHILLERS OPERATION AND INSTRUCTION MANUAL GP20, GP30, GP40, GP50, GP70, GP90, GP105, GP140, GP175, GP210 Part Number: 882.12047.00 Revision: 12/2/2021 <<Insert name of product>><< insert part number>> • << 9/11/2018>>...
  • Page 2 Write Down Your Serial Numbers Here For Future Reference: _________________________ _________________________ _________________________ _________________________ _________________________ _________________________ We are committed to product improvement. Specifications, appearance, and dimensions described in this manual are subject to change without notice. DCN No. ____________ © Copyright 2023 All rights reserved.
  • Page 3 Shipping Info 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 screws, etc. In the Event of Shipping Damage According to the contract terms and conditions of the Carrier, the responsibility of the Shipper ends at the time and place of shipment.
  • Page 4 ACS Group. Manufacturer reserves the right to change specifications, design without notification or obligation. ACS Group does not assume any responsibility for any errors that may appear in this manual. In no event will ACS Group be liable for technical or editorial omissions made herein, nor for direct, indirect, special, incidental, or consequential damages resulting from the use or defect of this manual.

  • Page 5: Table Of Contents

    Table of Contents CHAPTER 1: SAFETY ......................7 How to Use This Manual .................... 7 Safety Symbols Used in this Manual ................. 8 General Safety Regulations ....................9 Responsibility ......................9 CHAPTER 2: FUNCTIONAL DESCRIPTION ..............13 Models Covered in This Manual ................13 General Description ....................
  • Page 6 Microprocessor Controller ..................48 Initial Start-up ......................49 Status Screens ......................51 Controller Setpoints ....................54 Configuration Settings ..................... 59 Optional Communications ..................62 CHAPTER 5: MAINTENANCE ..................... 63 Lubrication ....................... 63 Filter Cleaning ......................63 Maintaining the Condenser ..................63 Maintaining the Evaporator ..................

  • Page 7: Chapter 1: Safety

    Chapter 1: Safety How to Use This Manual Use this manual as a guide and reference for installing, operating, and maintaining your machine. The purpose is to assist you in applying efficient, proven techniques that enhance equipment productivity. This manual covers only light corrective maintenance. No other maintenance should be undertaken without first contacting a service engineer.

  • Page 8: Safety Symbols Used In This Manual

    Safety Symbols Used in this Manual The following safety alert symbols are used to alert you to potential personal injury hazards. Obey all safety messages that follow these symbols to avoid possible injury or death. DANGER! DANGER indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury.

  • Page 9: General Safety Regulations

    General Safety Regulations These regulations should be read, understood and periodically reviewed by all personnel involved in any way with this machine. Never operate or remove any machine components that are secured by mechanical fasteners unless the motor is electrically locked out and all moving parts are motionless. Do not circumvent the safety interlocks.
  • Page 10 Figure 1: Safety Tags and Warning Labels GP Series Portable Chillers 882.12047.00 • 11/15/2021...
  • Page 11 Warnings and Precautions Our machines are designed to provide safe and reliable operation when installed and operated within design specifications, and follow national and local safety codes. To avoid possible personal injury or equipment damage when installing, operating, or maintaining this machine, use good judgment and follow these safe practices: LEARN AND OBEY your company’s safety policy regarding mechanical and electrical equipment.
  • Page 12 against or rest hands or feet on the equipment when it is in operation or open for maintenance. NEVER stand on the machine when it is in operation.  ALWAYS DISCONNECT AND LOCKOUT the main electrical power to the machine before performing any service.

  • Page 13: Chapter 2: Functional Description

    Chapter 2: Functional Description 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 the serial tag. Make sure you know the model and serial number of your equipment before contacting the manufacturer for parts or service.
  • Page 14 (by volume) to protect the system. See Chapter 3 for a further discussion regarding the use of glycol within the system for these applications. ACS Group does not warrant the freeze up of the evaporator under any circumstances. Chilled Water Circuit Cooling water “To Process”...

  • Page 15: Refrigeration Circuit

    Refrigeration Circuit Air-, water-, and remote air-cooled refrigerant condensing differ only in the way the compressed gas is condensed to a liquid. Shown below is a water-cooled version. The refrigerant is compressed in the compressor and flows through the discharge line as a gas to the condenser. There it gives up its heat as it condenses to a liquid in the condenser.

  • Page 16: Standard Features

    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 temperature remains above the setpoint plus the “compressor on differential”...
  • Page 17 Reservoir – GP20 and GP30 models use a 20 gallon (75 liter) polyethylene tank, GP40 and GP50 models use a 40 gallon (150 liter) polyethylene tank, GP70 thru GP105 models use a 70 gallon (265 liter) polyethylene tank, GP140 thru GP210 models use a 140 gallon (530 liter) polyethylene tank.

  • Page 18: Safety Devices And Interlocks

    Suction and discharge pressure transducers. High refrigerant pressure spring actuated relief valve 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 microprocessor-based PID controller with To Process, From Process and Set Point readout Time delay for proof of water flow/pressure (models w/pump only) Low refrigerant pressure time delay for low ambient start-up on remote air-cooled and air-...
  • Page 19 High Pressure Cutout This electro-mechanical cutout device opens the compressor control circuit if the refrigeration system compressor discharge pressure exceeds 575 psig. The high-pressure cutout is a manual reset device typically mounted on the compressor discharge line inside the mechanical cabinet. Call a refrigeration service technician to analyze the problem and reset the control.

  • Page 20: Optional Features

    Flow Switch Remote Start/Stop Interlock An additional contact is provided to allow the remote starting or stopping of the chiller. To use this feature install a switch or dry contact interlock connected in series between terminals 4 and 23. Refer to the electrical schematic supplied in the control enclosure. Once the wiring is complete the controller will need to be reconfigured in the supervisor settings.
  • Page 21 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. 208-230/3/60, 460/3/60, 575/3/60, and 400/3/50 volt available UL/cUL Labeled Electrical Subpanel. This option provides for the subpanel to be listed with Underwriters Laboratory, with UL-related benefits and features.

  • Page 22: Chapter 3: Installation

    Chapter 3: Installation 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 the unit to the skid. 3.

  • Page 23: Bypass Valve Considerations

    “From Process” is the inlet leading from the process back into the chiller to be cooled and re-circulated. Figure 2: Typical GP20-50 Air Cooled Process Piping Connections All external chilled water connections should be run full size to the process. Flow and pressure information is available in the Appendix.

  • Page 24: Galvanic Corrosion Considerations

    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 the reaction between dissimilar metals. PVC or non-ferrous piping is recommended to reduce galvanic action. If iron piping must be used, use dielectric unions at the chiller, and water treatment is required.
  • Page 25 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 and provisions for removal of heated air from the area. Do not locate air-cooled chillers in locations where steam, hot air, or fume exhausts can be drawn into the chiller.
  • Page 26 For all chillers manufactured with Variable Frequency Drives the voltage may vary up to 10% from the converter nominal voltage. However, the phase-to-phase input voltage imbalance must not exceed 3%. If the input voltage does have an imbalance from phase to phase greater than 3% then a line reactor must be installed to prevent faults within the VFD.
  • Page 27 System Configuration. The system can be configured in any of the arrangements shown on page 35, Figure 8: Remote Condenser Configurations, of the Appendix. The configuration and distance between the chiller and the condenser affects pipe size, refrigerant charge, oil return, and oil charge. Therefore there are limitations that must be adhered to for reliable and optimal operation.
  • Page 28 OD (inches) Valve Radius EL Radius EL 1 1/8 1 3/8 1 5/8 2 1/8 2 5/8 Figure 5: Liquid Line Sizing GPRC-20 GPRC-30 Liquid Line Size (OD") Liquid Line Size (OD") Total Total Equiv. Equiv. Length Length Horizontal Upflow Upflow Upflow Horizontal...
  • Page 29 GPRC-40 GPRC-50 Liquid Line Size (OD") Liquid Line Size (OD") Total Total Equiv. Equiv. Upflow Upflow Upflow Upflow Upflow Upflow Length Horizontal Length Horizontal (Ft) (Ft) Downflow 1-5 Ft 6-10 Ft 11-15 Ft Downflow 1-5 Ft 6-10 Ft 11-15 Ft 1 1/8 1 1/8 GPRC-70...
  • Page 30 GPRC-105 GPRC-140 Liquid Line Size (OD") Liquid Line Size (OD") Total Total Equiv. Equiv. Upflow Upflow Upflow Upflow Upflow Upflow Length Horizontal Length Horizontal (Ft) (Ft) Downflow 1-5 Ft 6-10 Ft 11-15 Ft Downflow 1-5 Ft 6-10 Ft 11-15 Ft 1 1/8 1 1/8 1 1/8...
  • Page 31 Figure 6: Discharge Line Sizing Horizontal or Downflow Discharge Line Sizes (OD") Model Total Equivalent Length (Ft) 0-25 GPRC-20 GPRC-30 1 1/8 1 1/8 1 1/8 1 1/8 1 1/8 GPRC-40 1 1/8 1 1/8 1 1/8 1 1/8 1 1/8 1 1/8 1 1/8 1 1/8...
  • Page 32 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 charge based on the model of the chiller and the amount of charge based on discharge and liquid line sizes and lengths.
  • Page 33 Oil Charge Determination. The remote air-cooled portable chillers are factory charged with the amount of oil required without field-installed piping. Additional oil required is dependent on the amount of additional refrigerant added. Calculate the amount of additional oil required by using the following formula: Pints of oil (Copeland Ultra 22cc) = lbs of R-410a added for field installed piping / 100.
  • Page 34 (Refer to Figure 1). ACS Group has supplied with this chiller one (1) refrigerant relief valve and one (1) 3/8 x 3/8 FPT forged bronze fitting.
  • Page 35 Figure 8: Remote Condenser Configurations Figure 9: Double Riser Detail a. 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 power source and reverse any two power leads into the chiller disconnect switch.

  • Page 36: Water Reservoir

    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. The following glycol products are available:...
  • Page 37 In applications where the process or process piping is above the reservoir, take steps to prevent over pressurization of the reservoir. This condition can occur on system shutdown when the water in the system drains into the reservoir. To prevent this, a vacuum breaker should be installed at the high point of the “To Process”...

  • Page 38: Automatic Water Make-Up Option

    Figure 10: Ethylene Glycol and Propylene Glycol Curves Example: 45°F set point minus 20°F = 25°F. From Figure 28, 25°F equates to 10% by volume of glycol required. The standard pumps used in the GPAC Serice chillers are not recommended to be used with fluid below 0°F (-18°C).

  • Page 39: Initial Start-Up

    To prevent system freeze-up in automatic make-up applications, we recommend using either a chemical feeder or make-up reservoir to replenish glycol. Contact the sales department for more information about these configurations. 3-11 Initial Start-Up Check the shipping papers against the serial tag to be sure chiller size, type and voltage is correct for the process that will be controlled.
  • Page 40 To Process From Process Complete chilled water To Process and From Process connections. It is suggested that shut-off valves are added to unit to control the flow rate to process and for completely isolating the chiller from the process. the optional automatic water make-up system was not installed on the chiller, remove the side panel to the left of the process connections and fill the tank and...
  • Page 41 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. The air-cooled condenser should have an adequate supply of 75º to 115ºF (24º to 46ºC) air for proper operation.

  • Page 42: Finishing Setup: Setting Up Passwords

    3-12 Finishing Setup: Setting Up Passwords You can establish passwords for two levels of security: operators and supervisors. The controller comes from the factory with neither password set. This allows every user access to all functions. If you choose to establish passwords store them in a secure location because if they are forgotten there is no way to reset them without a service call.
  • Page 43 To set password protections: 1. Press the button to access the menu screen. 2. Press the to highlight SETPOINTS, and press 3. Press the until the following screen appears for the Operator or Supervisor Password 4. Press to accept the screen, and then press until the Operator or Supervisor Password line is highlighted.

  • Page 44: Electrical Connection

    3-13 Electrical Connection GP -FLA CHART Standard Incoming Voltage (FLA) Model Size Type 460VAC 208VAC 230VAC 380V/60HZ 400V/50HZ 575VAC GP20 5 TON GPAC/GPRC 25.7 54.7 51.3 29.5 27.6 20.3 GP20 5 TON GPWC 23.6 49.9 46.5 27.4 25.5 18.6 GP30 7.5 TON...

  • Page 45: Unit Information

    3-14 Unit Information GP Series (Water Cooled) Dimensions in Inches (CM) Shipping Wt. Model Height Width Depth Lbs (Kg) GPWC20 60.8 (154) 30.5 (89) 35.0 (89) 520 (236) GPWC30 60.8 (154) 30.5 (89) 35.0 (89) 700 (318) GPWC40 60.8 (154) 30.5 (89) 44.0 (112) 760 (345)
  • Page 46 GP Series (Remote Cooled) Dimensions in Inches (CM) Shipping Wt. Model Height Width Depth Lbs (Kg) GPRC20 60.8 (154) 37.0 (94) 37.0 (94) 440 (200) GPRC30 60.8 (154) 37.0 (94) 37.0 (94) 620 (281) GPRC40 60.8 (154) 37.0 (94) 46.0 (117) 650 (295) GPRC50 60.8 (154)

  • Page 47: Cold Weather Installation

    3-15 Cold Weather Installation Warning: It is recommended when equipment is outdoor in a cold weather; that additional care should be taken. It is suggested that if the ambient temperature is less than or equal to zero degrees Fahrenheit for a few hours per year, thermostatically controlled heat wrapping be used on all outdoor condensing units.

  • Page 48: Chapter 4: Operation

    “stick” the interface on any metallic surface. The GP20 through GP50 units come standard with a 10 ft (3 m) cable, and the GP70 through GP210 units come standard with a 20 ft (6 m) cable. Longer cables are available through the After Market Sales Group.

  • Page 49: Initial Start-Up

    Button Button Description Detailed description Used to access the menus structure of the PGD interface Menu Button Used to turn the entire chiller On or Off. The button is backlit and will On/Off Button turn amber when the chiller is On. Used to back up from a menu and return to the main status screen Back Button Used to increment a data field or scroll up within a menu structure.
  • Page 50 4. Depress the button to highlight SETPOINTS and press . If passwords were setup (See Section 3-12 for information on the controller passwords) the password screen will appear. Enter the established Operator Password by depressing the to move the position of the cursor, and then depressing the button to increment or decrement the number.

  • Page 51: Status Screens

    Status Screens The controller has eight (8) preconfigured status screens. The main status screen (shown in Figure Figure 15) shows the main operating points of the chiller: Entering and Leaving fluid temperatures; Leaving fluid setpoint, pump discharge pressure, tank fluid level (depth), and percentage of hot-gas bypass output.
  • Page 52 GP Series Portable Chillers 882.12047.00 • 11/15/2021...
  • Page 53 The chiller can be equipped with a tempered fluid loop inside of the chiller. If this option is installed, the main screen changes to the following. Access Levels The controller is setup to allow access to three distinct password groups: operator, supervisor, and service.

  • Page 54: Controller Setpoints

    Controller Setpoints Access Level Variable Description Operator Supervisor Chilled Fluid SP Temperature of chilled fluid out to process Setpoint for alarm to warn when chilled leaving fluid Chil Hi Temp Wrn temperature is too high Setpoint to shut down pump and compressor based Chil Hi Temp Flt on leaving fluid temperature Process SP...
  • Page 55 Time (in seconds) Chilled High Temperature alarm is Chil Hi Temp Dly ignored before activating When set to CRIT, chiller and process high temp alarms will deactivate compressors and pumps. Hi Temp Flt Type When set to WARN, compressors and pumps are allowed to continue to operate when a high temp alarm occurs Temperature difference below the chiller setpoint...
  • Page 56 Cooling Valve I I parameter of the cooling valve PID loop Cooling Valve D D parameter of the cooling valve PID loop When in AUTO, the cooling valve is controlled by the cooling valve PID loop. When in MANUAL, the Cooling Valve Mode cooling valve is forced open to the percent dictated by the Cooling Valve Pos variable.
  • Page 57 Maximum tank level. Used to set the default high Tank Max Lvl tank level alarm setpoints as well as the auto-water makeup off setpoint. Low Level Fault Tank level that will activate Low Level Warning fault Low Level Warning Tank level that will activate Low Level Warning alarm The tank level to turn on optional water make-up Wtr Makeup On valve;...
  • Page 58 Enter the Operator Password by depressing the to move the position of the cursor, and then depressing the button to increment or decrement the number. Once all of the numbers have been entered depress to accept the password. The following screen will appear. Figure 17: Operator Setpoints Screen 2.

  • Page 59: Configuration Settings

    Configuration Settings Within the Supervisor Menu the chiller can be configured if options are added in the field. These configurations are described below. Access Level Variable Description Operator Supervisor Tank Level Inst Activates/Deactivates the tank level control sensor Activates the automatic water makeup valve within Auto Water Make-up the controller Set to CYCLING when a standard fan starter is used...
  • Page 60 Access Level Variable Description Operator Supervisor Determines the chiller loop’s type (COOL or Chil Loop Type HEAT/COOL) Determines the process loop’s type (COOL, Proc Loop Type HEAT/COOL or HEAT). Determines which loop’s (PROC or CHIL) information Primary Loop to display on the first status page of the display. Determines how analog output 2 is used.
  • Page 61 PROC (to process temperature) or FRM PROC (from process temperature). Determines which sensor is used to control the process loop. It can be set to TO PROC (to process Proc Cntl Sens temperature) or FRM PROC (from process temperature). When set to CRIT, the pump 2 overload alarm will deactivate compressors and pumps.

  • Page 62: Optional Communications

    Alarms The controller is setup with multiple alarms, most of them configurable using the Supervisor password. Section 4-5 Controller Setpoints on page 54 gives a list of alarms that the controller is setup to display. The alarms are broken up into two categories – warnings and faults.

  • Page 63: Chapter 5: Maintenance

    Chapter 5: Maintenance 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˚ F (85˚ C). Remove the grease relief plug (motors only) before adding grease, add grease until a small amount pours out, and replace the plug when finished.

  • Page 64: Maintaining The Evaporator

    Water-Cooled Chillers Proper water treatment will greatly reduce cleaning intervals. Coaxial Condensers (GPWC20-50). Remove dirt and slime in the condenser tube water side by reverse-circulating with a mild detergent and water solution. Remove mineral deposits by reverse circulating Liquid Inhibited Acid De-Scaling Solution (Part No. A0502600) through the water side of the condenser.
  • Page 65 Checking all electrical connections Checking quantity of refrigerant Checking compressor oil level on units with tandem compressors Checking lubrication of motor and pump bearings Checking circulating pump operation Checking flow through heat exchangers Checking compressor efficiency Checking noise levels GP Series Portable Chillers 882.12047.00 •...

  • Page 66: Chapter 6: Troubleshooting

    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 will help you determine the cause and the potential solution. Before beginning the troubleshooting process •...
  • Page 67 The display will show the cause the alarm and will indicate a possible solution. To accept the , and follow the suggested solution to correct the alarm condition. alarm press The following table shows the possible alarm messages that could appear on the display. CC = Compressor Critical SC = System Critical PC = Process Critical...
  • Page 68 CC = Compressor Critical SC = System Critical PC = Process Critical W = Warning Alarm Name Type Possible Cause Solution Discharge pressure switch See Discharge Pressure Sensor failure Failure Dirty air cooled condenser or Clean filter or condenser inlet filter Dirty water cooled condenser Clean condenser or verify or condenser valve failure...
  • Page 69 Clean y-strainer through blow- Plugged Y-strainer down valve or cleaning internal strainer. System low on refrigerant Contact Customer Service Verify wiring or output between Liquid line valves closed controller and valve Chilled fluid setpoint too Adjust setpoint or fluid close to freeze protection freezepoint temperature (will Low Suction Pressure Fault setpoint.
  • Page 70 Tank level sensor failure Replace Sensor Verify that all system valves are System valve(s) closed operational and adjust. Verify the sensor at the sensor Low flow sensor failure No Flow and at the terminal block. Verify the operation of the Pump failure pump (i.e.
  • Page 71 Condenser Inlet Temp Sensor Sensor wires broke between Replace temperature sensor Failure (optional with sensor sensor and controller terminal pack) block. Sensor wires loose from Verify wiring at terminal block. controller terminal block Chiller In Fluid Temp Sensor Sensor wires broke between Replace temperature sensor Failure sensor and controller terminal...
  • Page 72 CC = Compressor Critical SC = System Critical PC = Process Critical W = Warning Alarm Name Type Possible Cause Solution Fluid level higher than Verify value in parameter parameter setting. Open drain valve and remove High Level Fault Too much fluid in system some fluid from system so that level is below high level fault.
  • Page 73 Fluid level lower than Verify value in parameter. Add parameter setting. fluid to the system if necessary Verify wiring between Low Level Warning Optional Water Makeup valve controller and makeup valve. failure Replace valve if necessary Tank sensor failure Replace sensor Compressor Differential Pressure Low discharge pressure or Contact customer service...
  • Page 74 Sensor wires loose from Verify wiring of sensor at controller terminal block sensor and terminal block of Refrig Liquid Temp Sensor controller Sensor wires broke between Failure sensor and controller terminal block. Sensor wires loose from Verify wiring of sensor at controller terminal block sensor and terminal block of Refrig Suction Temp Sensor...
  • Page 75 Process cooling valve on Verify cooling valve operation Verify heater contactor Process heater off operation Process Low Temp Warning Process cooling valve on Verify cooling valve operation Optional process flow switch Verify operation of flow switch. failure Pump 2 No Flow SC/W Verify operation of process Process valves closed...
  • Page 76 Reverse two wires at line-side Unit wired incorrectly of power switch on electrical panel. Phase Monitor Fault Loss of phase during Verify sensor wiring at sensor operation and at terminal bloc. Sensor failure Replace sensor if necessary. Sensor wires loose from Verify wiring at sensor and at controller terminal block terminal block.
  • Page 77 Problem Possible cause Solution Leaving fluid setpoint set higher Lower the leaving fluid temperature than temperature of liquid in below the leaving temperature you system. desire. Allow time to cool and reset, then check for high/low volt-age. It must be within plus or minus 10% of the nameplate rating.

  • Page 78: Chapter 7: Appendix

    Chapter 7: Appendix Customer Satisfaction Warranty Program The terms and conditions of the warranty set forth are for one (1) year from the original date of purchase by the original purchaser. The manufacturer warrants to the original purchaser the product and/or goods to which this disclaimer is attached, and manufactured by us, to be free from defects in material and workmanship under normal use and service.
  • Page 79 Refer to this manual for assistance in installing and maintaining a highly efficient machine. Questions regarding areas that are not covered in the manual should be referred to the customer service manager at the factory at 262.641.8600. TECHNICAL 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.
  • Page 80 GPAC-30 / RC-30 PERFORMANCE (NOMINAL DESIGN CONDITIONS) COOLING CAPACITY 7.30 TONS ALTITUDE SEA LEVEL COOLANT SUPPLY TEMPERATURE °F COMPRESSOR POWER 7579 WATTS AMBIENT AIR TEMPERATURE °F 11.56 BTU/WATT COOLANT WATER CONDENSER AIR FLOW 6343 COOLANT FLOW SOUND POWER LEVEL UNIT PRESSURE DROP PSID SOUND PRESSURE LEVEL @ 1 METER OPERATING PARAMETERS...
  • Page 81 EVAPORATOR BRAZED PLATE CAPACITY CONTROL HOT GAS BYPASS CONDENSER ALUMINUM REFRIGERANT 6 LBS R-410A CONDENSER FANS 32 INCH AXIAL FRAME GALVANIZED STEEL CONDENSER FAN MOTOR 1 HP OAO, 1140 RPM PANELS POWDER COATED STEEL RESERVOIR 40 GALLON POLYETHYLENE WEIGHT (OPERATING) 1090 POWER 460V/3PH/60HZ...
  • Page 82 GPAC-70 / RC-70 PERFORMANCE (NOMINAL DESIGN CONDITIONS) COOLING CAPACITY 20.16 TONS ALTITUDE SEA LEVEL COOLANT SUPPLY TEMPERATURE °F COMPRESSOR POWER 20048 WATTS AMBIENT AIR TEMPERATURE °F 12.07 BTU/WATT COOLANT WATER CONDENSER AIR FLOW 16916 COOLANT FLOW SOUND POWER LEVEL UNIT PRESSURE DROP PSID SOUND PRESS LEVEL @ 1 METER OPERATING PARAMETERS...
  • Page 83 COOLANT PUMP COOLANT CIRCUIT NON-FERROUS STAINLESS STEEL CENTRIFUGAL EVAPORATOR BRAZED PLATE CAPACITY CONTROL HOT GAS BYPASS CONDENSER ALUMINUM REFRIGERANT 12 LBS R-410A CONDENSER FANS (2) 32 INCH AXIAL FRAME GALVANIZED STEEL CONDENSER FAN MOTOR (2) 2 HP OAO, 1140 RPM PANELS POWDER COATED STEEL RESERVOIR...
  • Page 84 GPAC-140 / RC-140 PERFORMANCE (NOMINAL DESIGN CONDITIONS) COOLING CAPACITY TONS ALTITUDE SEA LEVEL COOLANT SUPPLY TEMPERATURE °F COMPRESSOR POWER 38153 WATTS AMBIENT AIR TEMPERATURE °F 12.58 BTU/WATT COOLANT WATER CONDENSER AIR FLOW 38061 COOLANT FLOW SOUND POWER LEVEL UNIT PRESSURE DROP PSID SOUND PRESS LEVEL @ 1 METER OPERATING PARAMETERS...
  • Page 85 COOLANT PUMP COOLANT CIRCUIT NON-FERROUS STAINLESS STEEL CENTRIFUGAL EVAPORATOR BRAZED PLATE CAPACITY CONTROL HOT GAS BYPASS CONDENSER ALUMINUM REFRIGERANT 24 LBS R-410A CONDENSER FANS (3) 32 INCH AXIAL FRAME GALVANIZED STEEL CONDENSER FAN MOTOR (3) 2 HP OAO, 1140 RPM PANELS POWDER COATED STEEL RESERVOIR...
  • Page 86 Water-Cooled Portable Chillers Nominal operating parameters for water-cooled models are 50ºF (10ºC) leaving water temperature at 2.4 gpm per ton (9.1 lpm per 3.517 kW) with 85ºF (29ºC) tower water. For 50 Hz applications, multiply capacity by 0.83. Nominal 60 Hz capacity flow rate must be maintained.
  • Page 87 SOUND PRESSURE LEVEL @ 1 UNIT PRESSURE DROP PSID METER OPERATING PARAMETERS COOLANT SUPPLY TEMPERATURE 20-80 °F COOLANT FLOW 9-36 CONDENSER INLET WATER 50-90 °F MINIMUM LOAD 1.672 TONS TEMPERATURE SPECIFICATIONS COMPRESSOR SCROLL EVAPORATOR FILTER 20 MESH COOLANT PUMP COOLANT CIRCUIT NON-FERROUS STAINLESS STEEL CENTRIFUGAL EVAPORATOR...
  • Page 88 PANELS POWDER COATED STEEL RESERVOIR 40 GALLON POLYETHYLENE WEIGHT (OPERATING) 1090 POWER 460V/3PH/60HZ WEIGHT (SHIPPING) CONTROL CIRCUIT ELECTRICAL ENCLOSURE NEMA 12 COMPRESSOR FULL LOAD AMPS AMPS CONTROL MICROPROCESSOR GPWC-50 PERFORMANCE (NOMINAL DESIGN CONDITIONS) COOLING CAPACITY 16.66 TONS ALTITUDE SEA LEVEL COOLANT SUPPLY TEMPERATURE °F COMPRESSOR POWER...
  • Page 89 GPWC-70 PERFORMANCE (NOMINAL DESIGN CONDITIONS) COOLING CAPACITY 22.68 TONS ALTITUDE SEA LEVEL COOLANT SUPPLY TEMPERATURE °F COMPRESSOR POWER 16970 WATTS CONDENSER INLET WATER TEMP °F 16.04 BTU/WATT COOLANT WATER CONDENSER WATER FLOW COOLANT FLOW SOUND POWER LEVEL UNIT PRESSURE DROP PSID SOUND PRESS LEVEL @ 1 METER OPERATING PARAMETERS...
  • Page 90 COOLANT PUMP SST CENTRIFUGAL COOLANT CIRCUIT NON-FERROUS EVAPORATOR BRAZED PLATE CAPACITY CONTROL HOT GAS BYPASS CONDENSER SHELL & TUBE REFRIGERANT 12 LBS R-410A FRAME GALVANIZED STEEL PANELS POWDER COATED STEEL RESERVOIR 70 GALLON POLYETHYLENE WEIGHT (OPERATING) 2580 POWER 460V/3PH/60HZ WEIGHT (SHIPPING) 1900 CONTROL CIRCUIT 24/120...
  • Page 91 PERFORMANCE (NOMINAL DESIGN CONDITIONS) COOLING CAPACITY 43.35 TONS ALTITUDE SEA LEVEL COOLANT SUPPLY TEMPERATURE °F COMPRESSOR POWER 32685 WATTS CONDENSER INLET WATER TEMP °F 15.92 BTU/WATT COOLANT WATER CONDENSER WATER FLOW COOLANT FLOW SOUND POWER LEVEL UNIT PRESSURE DROP PSID SOUND PRESS LEVEL @ 1 METER OPERATING PARAMETERS COOLANT SUPPLY TEMPERATURE...
  • Page 92 EVAPORATOR BRAZED PLATE CAPACITY CONTROL HOT GAS BYPASS CONDENSER SHELL & TUBE REFRIGERANT 24 LBS R-410A FRAME GALVANIZED STEEL PANELS POWDER COATED STEEL RESERVOIR 140 GALLON POLYETHYLENE WEIGHT (OPERATING) 3870 POWER 460V/3PH/60HZ WEIGHT (SHIPPING) 2850 CONTROL CIRCUIT 24/120 ELECTRICAL ENCLOSURE NEMA 12 COMPRESSOR RATED LOAD AMPS (2) @ 41.9 AMPS EACH...

  • Page 93: Pumps, Curves, Flow, And Pressure Considerations

    Pumps, Curves, Flow, and Pressure Considerations 60 Hertz Pump Curves 20-50 ALL 60 Hz September 8, 2009 ACS CHILLER PUMPS 10 HP 3U 32-200-1100D3G 5 HP 2CDU 200/506 3 HP 2CDU 70/306 2 HP CDU 70/520D3G 3 HP CDU120/530D3G 1.5 HP CDU 70/315D3G...
  • Page 94 70-210 ALL 60 Hz September 8, 2009 ACS CHILLER PUMPS 15 HP 3U 40-200B150D3G 5 HP 2CDU 200/506 10 HP 3U 32-200-1100D3G 30 HP 3UB 65-200300D3G 5 HP 3U 32-160B50D3G 10 HP 3U 40-160-1100D3G 7.5 HP 3U 40-160-75D3G 5 HP CDU200/550D3G...
  • Page 95 50 Hertz Pump Curves 20-50 ALL 50 Hz ACS CHILLER PUMPS September 8, 2009 10 HP 3U 32-200-1100D3G 5 HP 2CDU 200/506 3 HP 2CDU 70/306 2 HP CDU 70/520D3G 3 HP CDU120/530D3G 1.5 HP CDU 70/315D3G Capacity [liter/min] Model...
  • Page 96 70-210 ALL 50 Hz September 8, 2009 ACS CHILLER PUMPS 5 HP 2CDU 200/506 10 HP 3U 32-200-1100D3G 30 HP 3UB 65-200300D3G 15 HP 3U 40-200B150D3G 5 HP 3U 32-160B50D3G 10 HP 3U 40-160-1100D3G 7.5 HP 3U 40-160-75D3G 5 HP 3U 40-125B-50D3G...
  • Page 97 Pure Water at >40°F GPXC-20 GPXC-30 GPXC-40 GPXC-50 DP (PSI) DP (PSI) DP (PSI) DP (PSI) 0.5X Nominal 1.0X Nominal 2.0X Nominal 21.4 21.9 20.7 23.3 GPXC-70 GPXC-90 GPXC-140 GPXC-175 0.5X Nominal 1.0X Nominal 2.0X Nominal 21.9 23.5 22.1 23.6 GPXC-210 0.5X Nominal 1.0X Nominal...
  • Page 98 Figure 18: Double Riser Detail GP Series Portable Chillers 882.12047.00 • 11/15/2021...
  • Page 99 Typical Ductwork for Air-Cooled Chillers 60 Hz Discharge 50 Hz Discharge air air volume volume Model /min /min GPAC-20 4230 3525 GPAC-30 6343 5286 GPAC-40 8458 7048 GPAC-50 12687 10573 GPAC-70 (2) 1.0 (2) 0.7 16916 14097 GPAC-90 (2) 2.0 (2) 1.4 25374 21145...
  • Page 100 When locating your air-cooled portable chiller and designing its ductwork, note any potential high temperature conditions when discharging into your building and any negative pressures with the building when discharging air outside. Notes: • Customer use of ductwork requires the high pressure fan option. •...

  • Page 101: Technical Assistance

    7-4 Technical Assistance PARTS SUPPORT ACS welcomes inquiries on all your parts needs and is dedicated to providing excellent customer service. 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.

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