Conair MPW, MPA manual System Alarms

Page 67

The chiller has detected a non-recoverable error involving he microprocessor control.

◆The Alarm LED lights and the STOP/RUN LED flashes red.

◆The chiller shuts down or will not start.

◆The control displays an error code indicating the source of the problem.

SYSTEM ALARMS

Alarm

Cause

Solution

Electrical noise or failed

Make sure all connections on

ERR

001

CPU on the motherboard

the motherboard are solid.

RAM hardware

caused system write tests

Operate unit in a noise free

failure.

do fail during power up.

environment. If error persists,

contact Conair service.

The CPU and/or PROM

Make sure the CPU and PROM

ERR

002

chip (U1 or U2) is not

chips are seated correctly in the

ROM, checksum

making good contact with

sockets. If error persists, contact

its socket, or the PROM

Conair service.

failure.

chip has failed.

A failed CPU, failed moth-

Cycle power to the unit. If the

ERR

003

erboard, software bug or

problem persists, contact Conair

electrical noise caused an

service technicians. You may

ERR

004

internal software error.

need to replace the mother-

board.

COP failures.

The CPU tried to execute

Make sure all connections to

ERR

005

an illegal software instruc-

the motherboard are solid and

tion due to electrical noise

that the unit is operating in a

Illegal Opcode.

or a failed motherboard.

noise free environment. If error

persists, contact Conair service.

A failed CPU, failed moth-

Cycle power to the unit. If the

ERR

006

erboard, software bug or

problem persists, contact Conair

electrical noise caused an

service technicians. You may

through

internal software error.

need to replace the mother-

board.

ERR

014

ERR 015

ERR 016

Software cannot write to CPU non- volatile memory.

The memory has exceeded its usable life or there is a software bug. This error occurs only after changes have been made to non- volatile memory either through the operator panel or SPI.

Cycle power to the unit. Contact Conair service if an operating parameter such as the setpoint is not being saved or if this error persists.

UGH004/0999

microKool Portable Chillers

TROUBLESHOOTING 6-11

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Contents Page Date Manual Number UGH004/0999 Serial numbers Model numbers Introduction Table of ContentsTroubleshooting 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 High Efficiency Compressors FeaturesPsi Pressure Specifications MPW Water CooledMPA-5 Specifications MPA AIR CooledFreeze Protection Requirements Freezing Points of Aqueous Ethylene Glycol SolutionsInstallation Boxes UnpackingMicroKool Portable Chillers come fully assembled Make sure the installation area provides Preparing for InstallationInstall plumbing for process and cooling lines Coat the pipe threads with thread sealant Connecting Process Water Supply LinesInstall pipe to the rear of the chiller Remove the shipping pipe plug from the femaleOpen the unit’s electrical enclosure Connecting Main Power SupplyUnits and check for leaks. If any leaks appear, stop Testing the InstallationApply power to the unit Turn on the condenser water supply MPWEntering Setpoint Deviation Parameters Dip switch Configuration Initial SetupOpen the electrical enclosure Change Dip Switch 1 to Changing Temperature UnitsSetpoint adjustment buttons Disconnect and lock out main power to the unitOpen the electrical enclosure Set dip switch 3 to on Select a new passcode usingOpen the electrical Press the RUN button to save the passcodeFollow Steps 1 through 5 Select a new control point using the Display button Selecting Temperature Control PointPress the RUN button to save the control point Set dip switch 5 toInsert the two power leads from the device Installing Auto Start FeatureWhen Auto Start is enabled Set dip switch 4 to the on positionTo disable Auto Start Enter the node address Apply power to the chiller Enter the passcode, if necessaryActivating SPI Communication Connect the host machine to the chillerOperation Setpoint display PC-1 Control FeaturesPumpdown On/Off PC-2 Control FeaturesTo detach the PC-2 control panel Positioning Control PanelTo raise and swivel the control panel To lower the control panelPress Setpoint to select the parameter you want to change Entering a PasscodeEnter the passcode Starting the ChillerPress Button to turn on Pumpdown Using Pumpdown FeatureStopping the Chiller To shut down the unit Press StopPerforming AN Auto Tune Insufficient setpoint/process deviation Page Maintenance Preventative Maintenance Schedule Quarterly every 3 months Inspect power cords, wires and electrical connectionsCleaning Condensers Cleaning EvaporatorsLocate the fill port at Back of the chiller Refilling the TankTo fill the reservoir If the charge is low, recharge the system Checking Refrigerant ChargeThen open the electrical enclosure Set dip switches 3Performing System Tests Press To shut down the chillerKEY/DISPLAY Test Select the Input Test menu Input TestConnect all inputs to the system Press any key to display the first test menusConnect 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 Release the Setpoint key Calibrating Temperature SensorsPress Select Exit Calibration ModePress the up key to begin calibrating Wait until the control displays don or badIndex through test menus to the operating log Logging Operating HoursExit the Operating Hours Log Troubleshooting Messages shown on the control panel. These Before BeginningFEW Words Verify that you have manuals for other equipCause of a Problem HOW to IdentifyGreater than the pump’s Supplied to the pumpMotor? Is the required water flowLoose? Is the thermocoupleDisconnected? Ply wire leads becomeLevel Switch fuse Has the indicated device Has one of the main supCompressor Air-cooled units Shut Down AlarmsRefrigerant pressure is either too low or too high All modelsFlow through he evapora Is the freezestat settingInstalled correctly? Freeze Stat Input is open Is there sufficient fluidCable? Is something wrong withSystem Alarms Chiller Will not Power UP Replace the fuse. The fuses are located on the mother Checking Replacing FusesIf fuses continue to fail On the front panel counterclockwise to openCheck 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 From outside the United States, call WE’RE Here to HelpAppendix A-2 SPI Command Pairs SPI Commands Supported by Conair MicrokoolStatus, Process SPI Status WordsStatus, Machine Appendix B-4 PARTS/DIAGRAMS PD-2 PD-3 PD-4 PD-5