HP A0554832 Operation, Panel Buttons, Indicator Lights, and Switches, Microprocessor Controllers

Page 29

Chapter 4: Operation

4-1 Panel Buttons, Indicator Lights, and Switches

Microprocessor Controllers

Standard chillers use a microprocessor-based PID controller. These controllers are modular, self-contained units that can slide from their mounting housing. They are factory set and adjusted; no field adjustment to the internal controls are necessary. Their standard operation range is 30ºF to 65ºF (-1ºC to 18ºC). See Figure 7: Typical Portable Chiller Microprocessor Controller.

E5CK Controller

 

 

Indicator

Name

Description

 

 

 

 

 

 

 

 

 

PV

Process Value LED

During normal operation, the large red PV LED

 

 

 

 

 

 

on the controller displays the actual process

 

 

8.8.8.8

 

 

 

 

 

 

temperature at the “To Process” thermocouple. It

 

 

 

 

 

 

also lists parameter symbols during setup and

 

 

 

 

 

 

error messages if an error occurs

 

 

 

 

 

 

 

SV

Set Value LED

During normal operation, the green SV LED on

 

 

 

 

 

 

the controller displays the process set point you

 

 

8.8.8.8

 

 

 

 

 

 

 

 

want the chiller to maintain. It also displays

 

 

 

 

 

 

parameter and pre-set function values during set

 

 

 

 

 

 

up.

 

 

 

 

 

 

 

 

 

 

 

 

Out 1 LED

The orange OUT1 LED lights when the control

 

 

 

 

 

 

 

OUT1

 

output energizes the hot-gas bypass solenoid valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Out 2 LED

The orange OUT2 LED lights whenever the

 

 

 

 

 

 

 

OUT2

 

process temperature is two degrees or more above

 

 

 

 

 

 

the “To Process” setpoint. The compressor then

 

 

 

 

 

 

 

 

 

 

 

 

comes on and runs until the temperature at the “To

 

 

 

 

 

 

Process” thermocouple is two degrees below the

 

 

 

 

 

 

setpoint.

 

 

 

 

 

 

 

 

 

 

 

 

MANU LED

The orange MANU LED is not used and does not

 

 

MANU

 

light.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stop LED

The orange STOP LED is not used and does not

 

 

 

 

 

 

 

STOP

 

light.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RMT LED

The orange RMT LED is lit during remote

 

 

 

 

 

 

 

RMT

 

operation.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AT

AT LED

The orange AT LED flashes during auto-tuning.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2-40 HP Portable Chillers

Chapter 4: Operation

29 of 78

Page 28 Page 30
Image 29
Page 28 Page 30
Contents Hp Portable Chillers Shipping Information Table of Contents Operation HP Portable Chillers Safety Symbols Used in this Manual SafetyHow to Use This Manual Responsibility Wear Safety Glasses and Work GlovesModels Covered in This Manual Functional DescriptionRefrigeration Circuit General DescriptionChilled Water Circuit Other Mechanical Features Standard FeaturesMechanical Features Refrigeration Features Electrical FeaturesController Features Other FeaturesHigh/Low Thermostat Control Safety Devices and InterlocksCrankcase Heater High Pressure CutoutFan Cycling Switch Oil Pressure Safety SwitchPressure Switch Flow SwitchOptional Features Mounting Features Optional Pump Amperages Voltage Construction Full Load Amps Electrical Connections InstallationUncrating Bypass Valve Considerations Process Water ConnectionsGalvanic Corrosion 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 Refrigerant Charge Determination Chiller Condenser Charge Field Installed Piping ChargeChecking Motor Direction Three-Phase CompressorsWater Pumps Condenser FanPart Number Description Water ReservoirEthylene Glycol and Propylene Glycol Curves Automatic Water Make-Up Option Initial Start-Up E5CK Controller Indicator Name Description Panel Buttons, Indicator Lights, and SwitchesOperation Microprocessor ControllersSterlco 2000 Controller Indicator Name Description Indicator Name Description2000 Graphic Panel See on Indicator Name DescriptionIndicator Name Description With Sterlco 2000 Controller Typical Graphic Panels With E5CK ControllerAuto-Tuning Setting the Process Water TemperaturesStart-up Optional CommunicationsProgramming the Electronic High/Low Thermostat Thermostat Buttons Indicator Name DescriptionStage 1 Freeze Protection Stage 2 High Temperature ProtectionSelect Fahrenheit or Celsius Lubrication MaintenanceFilter Cleaning Maintaining the Evaporator Maintaining the CondenserEvaporator Process Piping Y-Strainer Air- and Remote Air-Cooled ChillersPreventative Maintenance Service HP Portable Chillers Troubleshooting TroubleshootingHP Portable Chillers Troubleshooting Appendix WarrantyTechnical Assistance Service DepartmentParts Department Sales DepartmentHp and 3 1/2 hp Air-Cooled Portable Chillers Drawings and SpecificationsHp 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 Hp and 7.5 hp Remote Air-Cooled Portable Chillers Nominal cooling Com Refrigeration Power in amps e12.8 17.3 748Nominal cooling Com Refrigeration Hp and 15 hp Remote Air-Cooled Portable ChillersPres Nom Connections 15.0 40.9 34.0 74.7To/from No tank Tank, to/from Height Width Depth Lbs Hp through 40 hp Remote Air-Cooled Portable Chillers‘A’in ‘B’in ‘C’in ‘D’in ODSin Remote Condenser Assembly ModelsHertz Pump Curves Pump Curves, Flow, and Pressure ConsiderationsDWG. No. S0554823 Calculating Chiller Nominal Flow and Pressure to Process Water Pressure Drop TablesFlow 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 Central and Gravity Return Piping with Standpipe Diagram Piping DiagramsTypical 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 Time-delay Relays Disconnect Switch Optional Electrical SchematicsTypical Electrical Subpanel Speed FusesTypical Electrical Schematic, 2 hp and 3 1/2 hp Models A0554815 Typical Power Wiring Schematic, 5 hp through 40 hp ModelsHP Portable Chillers Appendix DWG A0554931 DWG A0562343 DWG A0562435 Typical Wiring Schematic, 35 hp and 40 hp Models with Pump DWG A0562434
Top Page Image Contents