Enabling Disabling Passcode Protection | Conair MPA, MPW instruction

ENABLING AND

DISABLING

PASSCODE

PROTECTION

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.

The PC-1 and PC-2 controls provide the ability to protect sys- tem parameters from unauthorized changes during normal operating mode. When system passcode protection is enabled, the following parameters cannot be changed unless you enter the correct passcode:

●The Process Setpoint

●High Deviation Alarm Setpoint

●Low Deviation Alarm Setpoint

●Baud Rate selection for serial communications

●Address selection for serial communications

When the unit is turned on for the first time, passcode protec- tion is disabled. To enable passcode protection:

1	Disconnect and lock out main power to the unit.
2	Open the electrical enclosure.
3	Set dip switch 3 to ON	8 7 6 5 4 3 2 1
	and switches 5 and 6
	to OFF.
4	Close the electrical enclosure and restore
	power to the unit.
5	Press any
	button when
	the control dis-
	plays “Pas rSt”
	(Passcode Reset).
	The control will
	display the last
	passcode used.
6	Select a new passcode using the ▲ and ▼
	setpoint adjustment buttons.
	Stop pressing the setpoint buttons when the passcode you
	want appears in the setpoint display window. Selecting
	“OFF” as the passcode will disable the passcode feature.

3-10

INSTALLATION

microKool Portable Chillers

UGH004/0999

Image 26

Conair MPA, MPW manual Enabling Disabling Passcode Protection, Disconnect and lock out main power to the unit

Contents

Page Date Manual Number UGH004/0999 Serial numbers Model numbers Table of Contents Introduction Troubleshooting Introduction Your Responsibility AS a User Purpose User GuideHOW Guide is Organized Read this SO no ONE Gets Hurt Page Description Typical Applications What is the MicrokoolCHILLER? HOW IT Works Water Cooled HOW IT Works AIR Cooled Features High Efficiency Compressors Specifications MPW Water Cooled Psi Pressure Specifications MPA AIR Cooled MPA-5 Freezing Points of Aqueous Ethylene Glycol Solutions Freeze Protection Requirements Installation MicroKool Portable Chillers come fully assembled UnpackingBoxes Install plumbing for process and cooling lines Preparing for InstallationMake sure the installation area provides 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 sealant Connecting Main Power Supply Open the unit’s electrical enclosure Turn on the condenser water supply MPW Testing the InstallationApply power to the unit Units and check for leaks. If any leaks appear, stop Entering Setpoint Deviation Parameters Initial Setup Dip switch Configuration Changing Temperature Units Open the electrical enclosure Change Dip Switch 1 to Select a new passcode using Disconnect and lock out main power to the unitOpen the electrical enclosure Set dip switch 3 to on Setpoint adjustment buttons Follow Steps 1 through 5 Press the RUN button to save the passcodeOpen the electrical Selecting Temperature Control Point Select a new control point using the Display button Set dip switch 5 to Press the RUN button to save the control point Installing Auto Start Feature Insert the two power leads from the device To disable Auto Start Set dip switch 4 to the on positionWhen Auto Start is enabled Connect the host machine to the chiller Apply power to the chiller Enter the passcode, if necessaryActivating SPI Communication Enter the node address Operation PC-1 Control Features Setpoint display PC-2 Control Features Pumpdown On/Off To lower the control panel Positioning Control PanelTo raise and swivel the control panel To detach the PC-2 control panel Entering a Passcode Press Setpoint to select the parameter you want to change Starting the Chiller Enter the passcode To shut down the unit Press Stop Using Pumpdown FeatureStopping the Chiller Press Button to turn on Pumpdown Performing AN Auto Tune Insufficient setpoint/process deviation Page Maintenance Preventative Maintenance Schedule Inspect power cords, wires and electrical connections Quarterly every 3 months Cleaning Evaporators Cleaning Condensers To fill the reservoir Refilling the TankLocate the fill port at Back of the chiller Checking Refrigerant Charge If the charge is low, recharge the system Press To shut down the chiller Set dip switches 3Performing System Tests Then open the electrical enclosure KEY/DISPLAY Test Press any key to display the first test menus Input TestConnect all inputs to the system Select the Input Test menu Select the Output Test menu Output TestConnect all outputs to the system Save changes and exit the output menu Select the OM Enable/Disable menuDisabling or Enabling Output Monitors Calibrating Temperature Sensors Release the Setpoint key Wait until the control displays don or bad Exit Calibration ModePress the up key to begin calibrating Press Select Exit the Operating Hours Log Logging Operating HoursIndex through test menus to the operating log Troubleshooting Verify that you have manuals for other equip Before BeginningFEW Words Messages shown on the control panel. These HOW to Identify Cause of a Problem Is the required water flow Supplied to the pumpMotor? Greater than the pump’s Is 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 units Freeze Stat Input is open Is there sufficient fluid Is the freezestat settingInstalled correctly? Flow through he evapora Is 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 mother Locate the pump overload module attached Resetting OverloadsCheck the overload Replacing the Motherboard Remove and discard the old contactor Reverse this procedure to install the new conReplacing Compressor Contactor Checking Unloader Valve Replacing the Freezestat WE’RE Here to Help From outside the United States, call Appendix A-2 SPI Commands Supported by Conair Microkool SPI Command Pairs SPI Status Words Status, Process Status, Machine Appendix B-4 PARTS/DIAGRAMS PD-2 PD-3 PD-4 PD-5