Conair MPA, MPW manual Installing Auto Start Feature, Insert the two power leads from the device

Page 30

Disconnect and lockout power to the unit. Open the electrical enclosure.

INSTALLING THE

AUTO START

FEATURE

(PC-2 CONTROL ONLY)

IMPORTANT: Always

refer to the wiring diagrams that came with your unit before making electrical con- nections. The diagrams show the most accurate electrical component information.

WARNING: Electric shock hazard

This equipment is powered by high voltage. Always disconnect and lock out the main power source before opening the unit or the electrical enclosure to modify factory settings. Failure to disconnect and lock out the main power source can result in severe personal injury.

If you have a PC-2 microprocessor control, you can automati- cally start and stop the chiller from a remote switching or tim- ing device that has power contacts rated 110VAC, such as the process machine control.

Wiring the device to the chiller is accomplished through a dry contact to the appropriate terminals on the motherboard. After wiring the device to the unit, Auto Start must be enabled by configuring a dip switch on the motherboard.

1

2

3 Punch a small hole in the left side of the electrical enclosure. The hole must be large enough to accommodate conduit for the power contact wires from your switching or timing device.

4 Insert the two power leads from the device

through the conduit into the electrical enclosure.

				Device contacts
					6 5 4 3 2 1	4 3 2 1
AC IN 4	AC IN + 3	AC OUT 2	AC OUT + 1	F1	LLS/WPS LLS/WPS AUTOSTART AUTOSTART HPS/LPS HPS/LPS	OPS OPS FSTAT FSTAT

5 Connect the 110VAC device contact wires to the Auto Start terminals. Make sure terminals are

screwed tight.

3-14	INSTALLATION	microKool Portable Chillers	UGH004/0999

Image 30

Contents Page Date Manual Number UGH004/0999 Serial numbers Model numbers Table of Contents IntroductionTroubleshooting Introduction Purpose User Guide HOW Guide is OrganizedYour Responsibility AS a User Read this SO no ONE Gets Hurt Page Description What is the Microkool CHILLER?Typical 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 Unpacking BoxesMicroKool Portable Chillers come fully assembled Preparing for Installation Make sure the installation area providesInstall 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 buttonsPress the RUN button to save the passcode Open the electricalFollow 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 deviceSet dip switch 4 to the on position When Auto Start is enabledTo 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 CondensersRefilling the Tank Locate the fill port at Back of the chillerTo 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 menuOutput Test Connect all outputs to the systemSelect the Output Test menu Select the OM Enable/Disable menu Disabling or Enabling Output MonitorsSave 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 SelectLogging Operating Hours Index through test menus to the operating logExit 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 motherResetting Overloads Check the overloadLocate the pump overload module attached Replacing the Motherboard Reverse this procedure to install the new con Replacing Compressor ContactorRemove 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