HP A0554832 manual Optional Features

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2-5 Optional Features

Options marked with “*” indicate options that can be factory installed or retrofitted in the field.

Automatic Water Make-Up*.Not available on chillers less reservoir tank. Includes a pressure-regulating valve set at 3 to 5 psi, an electric water solenoid valve, a float switch mounted in the reservoir tank, and the necessary internal piping to connect the chiller to a make-up water source. See Appendix for typical piping diagrams.

Caution! Customer piping must provide backflow protection and venting of tank to atmosphere to prevent over-pressurization of the reservoir tank. See Central and Gravity Return Piping with Standpipe Diagram on page 64.

Process Water Sidestream Filter*. Not available on chillers less pump and reservoir tank. Includes a 50 micron filter, flow meter, ball valve for throttling water flow, and the necessary piping to provide constant filtering of the process water at about one gallon per minute (1 gpm/3.8lpm).

General Fault Indicator Audible Alarm*. Includes an 85 dB @ 2 ft. audible alarm buzzer and silence button with provisions for customer wiring indication interlock. The alarm signals anytime that a fault is recognized during the operation of the chiller.

General Fault Indicator Audible/Visual Alarm*. Includes a 100 dB @ 10 ft. audible alarm horn/ 108,000 peak candlepower 80-flash/min. visual alarm strobe and silence button with provisions for customer wiring indication interlock. The alarm signals anytime that a fault is recognized during the operation of the chiller.

Compressor Hour Meter*. Includes a DIN-mount hour meter that keeps track of the total time that the compressor runs.

Communications Options. RS-232C and RS-485 communications standards are available.

Recirculation Pump. Necessary whenever process water flow is less than 2.2 gpm per ton (8.3 lpm per 3.517 kW) or greater than 4.8 gpm per ton (18.2 lpm per 3.517 kW).

High Pressure Fans. Provides for an additional 0.30”WC (75 pa) of static pressure on fan discharge. High-pressure fans are necessary and must be included in chiller installations where exiting air exhausts through ductwork.

The fans are available on 5 to 15 hp air-cooled chillers. They can be retrofitted without sheet metal modification, but will require changing out fan blades, and in some cases, fan motors and electrical components. 20 hp to 30 hp models come standard with squirrel cage blowers, which can be ducted.

Variable Speed Fan. Available on 5 to 15 hp air-cooled chillers. Reduces the speed of the fan based on entering air temperature and system load, allowing the chiller to operate in ambient temperatures below 60ºF (15.5ºC). This option will also reduce fan noise in ambients below 95ºF (35ºC).

Crankcase Pressure Regulating (CPR) Valve. Required on chillers operating at leaving water temperatures from 66ºF to 75ºF (10ºC to 24ºC). This valve prevents compressor motor overloading.

2-40 HP Portable Chillers

Chapter 2: Functional Description

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Contents Hp Portable Chillers Shipping Information Table of Contents Operation HP Portable Chillers Safety Symbols Used in this Manual SafetyHow to Use This Manual Wear Safety Glasses and Work Gloves ResponsibilityFunctional Description Models Covered in This ManualRefrigeration Circuit General DescriptionChilled Water Circuit Other Mechanical Features Standard FeaturesMechanical Features Controller Features Electrical FeaturesRefrigeration Features Other FeaturesCrankcase Heater Safety Devices and InterlocksHigh/Low Thermostat Control High Pressure CutoutPressure Switch Oil Pressure Safety SwitchFan Cycling Switch Flow SwitchOptional Features Mounting Features Optional Pump Amperages Voltage Construction Full Load Amps Electrical Connections InstallationUncrating Galvanic Corrosion Considerations Process Water ConnectionsBypass Valve Considerations Water Treatment ConsiderationsAir-Cooled Chiller Condensers Condenser ConsiderationsWater-Cooled Chiller Condensers Remote Air-Cooled Chiller Condensers Page Equivalent Length in Feet for Valves and Fittings Chiller Condenser Charge Field Installed Piping Charge Refrigerant Charge DeterminationWater Pumps Three-Phase CompressorsChecking Motor Direction Condenser FanWater Reservoir Part Number DescriptionEthylene Glycol and Propylene Glycol Curves Automatic Water Make-Up Option Initial Start-Up Operation Panel Buttons, Indicator Lights, and SwitchesE5CK Controller Indicator Name Description Microprocessor ControllersIndicator Name Description Sterlco 2000 Controller Indicator Name Description2000 See on Indicator Name Description Graphic PanelIndicator Name Description Typical Graphic Panels With E5CK Controller With Sterlco 2000 ControllerStart-up Setting the Process Water TemperaturesAuto-Tuning Optional CommunicationsThermostat Buttons Indicator Name Description Programming the Electronic High/Low ThermostatStage 1 Freeze Protection Stage 2 High Temperature ProtectionSelect Fahrenheit or Celsius Lubrication MaintenanceFilter Cleaning Evaporator Process Piping Y-Strainer Maintaining the CondenserMaintaining the Evaporator Air- and Remote Air-Cooled ChillersPreventative Maintenance Service Troubleshooting HP Portable Chillers TroubleshootingHP Portable Chillers Troubleshooting Warranty AppendixParts Department Service DepartmentTechnical Assistance Sales DepartmentDrawings and Specifications Hp and 3 1/2 hp Air-Cooled Portable ChillersHp and 7.5 hp Air-Cooled Portable Chillers Hp and 15 hp Air-Cooled Portable Chillers 20 hp, 25 hp, and 30 hp Air-Cooled Portable Chillers In. NPT Height Width Depth Lbs Hp and 3.5 hp Water-Cooled Portable ChillersNominal Condenser water Nominal cooling Water Com Hp and 7.5 hp Water-Cooled Portable Chillers Hp and 15 hp Water-Cooled Portable Chillers 20 hp, 25 hp, and 30 hp Water-Cooled Portable Chillers Hp and 40 hp Water-Cooled Portable Chillers 12.8 17.3 Nominal cooling Com Refrigeration Power in amps eHp and 7.5 hp Remote Air-Cooled Portable Chillers 748Pres Nom Connections Hp and 15 hp Remote Air-Cooled Portable ChillersNominal cooling Com Refrigeration 15.0 40.9 34.0 74.7Hp through 40 hp Remote Air-Cooled Portable Chillers To/from No tank Tank, to/from Height Width Depth LbsRemote Condenser Assembly Models ‘A’in ‘B’in ‘C’in ‘D’in ODSinPump Curves, Flow, and Pressure Considerations Hertz Pump CurvesDWG. No. S0554823 Water Pressure Drop Tables Calculating Chiller Nominal Flow and Pressure to ProcessFlow and Pressure Considerations Recirculation Pump SpecificationsRecirc. power Flow Rate ∆ pressure Gpm Lpm Psi KPa Configuration B Configuration C Remote Air-Cooled Chiller ConfigurationsConfiguration a Typical Ductwork for Air-Cooled Chillers Piping Diagrams Central and Gravity Return Piping with Standpipe DiagramTypical Piping Schematic, 2 and 3 1/2 hp Models HP Portable Chillers Appendix HP Portable Chillers Appendix Typical Piping Schematic, 5 hp through 40 hp, No-Pump Models HP Portable Chillers Appendix Typical Electrical Subpanel Electrical SchematicsTime-delay Relays Disconnect Switch Optional Speed FusesTypical Electrical Schematic, 2 hp and 3 1/2 hp Models Typical Power Wiring Schematic, 5 hp through 40 hp Models A0554815HP Portable Chillers Appendix DWG A0554931 DWG A0562343 DWG A0562435 Typical Wiring Schematic, 35 hp and 40 hp Models with Pump DWG A0562434
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