Conair MPA, MPW manual PC-1 Control Features, Setpoint display

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PC-1 CONTROL FEATURES

All normal operating functions can be controlled from the microKool PC-1 control panel.

Setpoint display

The Setpoint display shows the setpoints entered for fluid temper- ature, high and low temperature deviation alarms, the SPI baud rate, and the SPI address.

Setpoint and Actual value display windows also display some alarm codes and setup instructions.

Run/Stop

Press the RUN button to start normal operation. Press STOP to stop the unit.

=Running (green)

=Stopped (red)

=Alarm (red, flashing)

Actual values display

The green window displays the temperature at the middle of the process. This is calculat- ed as an average of the process fluid tem- peratures at the chiller inlet and outlet.

The lights indicate whether the temperature is in degrees Fahrenheit or Celsius. See the INSTALLATION section for instructions on how to change the temperature units.

Setpoint Select button

Press repeatedly until a green light appears next to the parameter you want to program or view.

NOTE: Default settings for the deviation setpoints are:

High = setpoint + 10° F Low = setpoint - 10° F

A warning alarm occurs (indicator light red) whenever the actual temperature is outside this setpoint range for more than 15 min- utes. Recommended setting: ± 2-10° F.

 

Status lights

 

The lights indicate the oper-

 

ating status of the listed

 

components. Except in Test

 

Mode, the lights indicate:

 

= Off or inactive

 

= On or active (green)

 

= Alarm condition (red)

 

Test Mode is used for test-

 

ing displays, keys and

 

input/output functions. When

 

test mode is enabled, nor-

 

mal operation is disabled.

 

= Test Mode off

Alarm

= Test Mode on (red);

Press to acknowledge the

unit disabled

 

alarm light and silence the optional audible alarm. The alarm light will flash until the cause of the alarm condition is fixed. See Troubleshooting for alarm descriptions and remedies.

Setpoint adjustment buttons

Press ▲ or ▼ to enter the process temperature setpoint, SPI parameters and passcodes.

Press ▲ to increase a value. Press ▼ to decrease a value.

TIP: Press and hold the button for faster scrolling speed.

NOTE: Passcode protection prevents accidental or unauthorized changes to all operating parameters. If passcode protection has been enabled, you must enter the correct passcode to change the process temperature setpoint.

4-2

OPERATION

microKool Portable Chillers

UGH004/0999

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Contents Page Date Manual Number UGH004/0999 Serial numbers Model numbers Table of Contents IntroductionTroubleshooting Introduction HOW Guide is Organized Purpose User GuideYour Responsibility AS a User Read this SO no ONE Gets Hurt Page Description CHILLER? What is the MicrokoolTypical Applications HOW IT Works Water Cooled HOW IT Works AIR Cooled Features High Efficiency CompressorsSpecifications MPW Water Cooled Psi PressureSpecifications MPA AIR Cooled MPA-5Freezing Points of Aqueous Ethylene Glycol Solutions Freeze Protection RequirementsInstallation Boxes UnpackingMicroKool Portable Chillers come fully assembled Make sure the installation area provides Preparing for InstallationInstall plumbing for process and cooling lines Remove the shipping pipe plug from the female Connecting Process Water Supply LinesInstall pipe to the rear of the chiller Coat the pipe threads with thread sealantConnecting Main Power Supply Open the unit’s electrical enclosureTurn on the condenser water supply MPW Testing the InstallationApply power to the unit Units and check for leaks. If any leaks appear, stopEntering Setpoint Deviation Parameters Initial Setup Dip switch ConfigurationChanging Temperature Units Open the electrical enclosure Change Dip Switch 1 toSelect a new passcode using Disconnect and lock out main power to the unitOpen the electrical enclosure Set dip switch 3 to on Setpoint adjustment buttonsOpen the electrical Press the RUN button to save the passcodeFollow Steps 1 through 5 Selecting Temperature Control Point Select a new control point using the Display buttonSet dip switch 5 to Press the RUN button to save the control pointInstalling Auto Start Feature Insert the two power leads from the deviceWhen Auto Start is enabled Set dip switch 4 to the on positionTo disable Auto Start Connect the host machine to the chiller Apply power to the chiller Enter the passcode, if necessaryActivating SPI Communication Enter the node addressOperation PC-1 Control Features Setpoint displayPC-2 Control Features Pumpdown On/OffTo lower the control panel Positioning Control PanelTo raise and swivel the control panel To detach the PC-2 control panelEntering a Passcode Press Setpoint to select the parameter you want to changeStarting the Chiller Enter the passcodeTo shut down the unit Press Stop Using Pumpdown FeatureStopping the Chiller Press Button to turn on PumpdownPerforming AN Auto Tune Insufficient setpoint/process deviation Page Maintenance Preventative Maintenance Schedule Inspect power cords, wires and electrical connections Quarterly every 3 monthsCleaning Evaporators Cleaning CondensersLocate the fill port at Back of the chiller Refilling the TankTo fill the reservoir Checking Refrigerant Charge If the charge is low, recharge the systemPress To shut down the chiller Set dip switches 3Performing System Tests Then open the electrical enclosureKEY/DISPLAY Test Press any key to display the first test menus Input TestConnect all inputs to the system Select the Input Test menuConnect all outputs to the system Output TestSelect the Output Test menu Disabling or Enabling Output Monitors Select the OM Enable/Disable menuSave changes and exit the output menu Calibrating Temperature Sensors Release the Setpoint keyWait until the control displays don or bad Exit Calibration ModePress the up key to begin calibrating Press SelectIndex through test menus to the operating log Logging Operating HoursExit the Operating Hours Log Troubleshooting Verify that you have manuals for other equip Before BeginningFEW Words Messages shown on the control panel. TheseHOW to Identify Cause of a ProblemIs the required water flow Supplied to the pumpMotor? Greater than the pump’sIs the thermocouple Loose?Has one of the main sup Ply wire leads becomeLevel Switch fuse Has the indicated device Disconnected?Compressor All models Shut Down AlarmsRefrigerant pressure is either too low or too high Air-cooled unitsFreeze Stat Input is open Is there sufficient fluid Is the freezestat settingInstalled correctly? Flow through he evaporaIs something wrong with Cable?System Alarms Chiller Will not Power UP On the front panel counterclockwise to open Checking Replacing FusesIf fuses continue to fail Replace the fuse. The fuses are located on the motherCheck the overload Resetting OverloadsLocate the pump overload module attached Replacing the Motherboard Replacing Compressor Contactor Reverse this procedure to install the new conRemove and discard the old contactor Checking Unloader Valve Replacing the Freezestat WE’RE Here to Help From outside the United States, callAppendix A-2 SPI Commands Supported by Conair Microkool SPI Command PairsSPI Status Words Status, ProcessStatus, Machine Appendix B-4 PARTS/DIAGRAMS PD-2 PD-3 PD-4 PD-5
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