Conair UGH016/0500 manual Setting the to Process LOW Limit

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SETTING THE TO

PROCESS LOW

LIMIT

To return to the To Process Temperature screen from any other screen, press and hold the button for at least 5 seconds until the temperature displays.

The default low temperature limit for the To Process fluid is set at the factory at 40 °F. This temperature limit is the lowest temperature for the chilled fluid leaving the Chiller. If you want to cool fluid below 40 °F (4 °C) and down to 20 °F

(-7 °C), you need to fill the chiller with the proper percentage of glycol solution. See Filling the Chiller, in the Installation section.

After the Chiller is filled with the proper percentage of glycol solution, you need to set the minimum operating temperature on the control. Use the temperature you chose when selecting the percent glycol.

To set the To Process low limit on the control:

1 Press Menu button until INP shows on the screen.

2 Press the Enter button until SPLL displays on the screen. SPLL flashes, along with the current low limit temperature.

3 Press the Up/Down arrows

to change the temperature to the required num- ber.

4 Press the Menu button to accept the new temperature.

If you want to change from using a glycol solution back to using water in your chiller, you need to change the low limit temperature to 40 °F (4 °C). Follow the steps listed here to set the To Process low limit to 40.

4-8

OPERATION

Series 1 Portable Chillers, TIC Control

UGH016/0500

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Contents Portable Chillers Conair GROUP, INC Table of Contents IntroductionParts and Diagrams . . . . . . . . . . . .P/D-1 Introduction HOW Guide is Organized Purpose User GuideYour Responsibility AS a User Read this SO no ONE Gets Hurt Page Description What is Portable CHILLER? Temperature Typical ApplicationsCooling load LocationHOW IT Works WATER-COOLED Portable Chiller Process circulationHOW IT Works HOW IT Works AIR-COOLED Portable Chiller HOW IT Works AIR-COOLED Portable ChillerChiller Features Water-cooled ModelsPortable Chiller Features Air-cooled ModelsSpecifications ModelSpecifications Pump Curves Installation Unpacking the Boxes UGH016/0500 Series 1 Portable Chillers, TIC Control Grounded power source Preparing for InstallationAvailable water source Wrap threads with Mylar or Teflon tape Making Process Plumbing ConnectionsConnect the To Process valve and tubing on Filling the Chiller Attach water hose to Fill/Drain valveOpen the Fill/Drain valve and fill chiller Close the Fill/Drain valveChange the minimum operating temperature Check the coolant levelChecking Refrigerant Charge Connecting Main Power Source Connect the ground wire to grounding lugChecking Electrical Connections Close the electrical enclosure Turn on main power sourceOpen electrical enclosure Initially Starting Chiller Press the Start Chiller buttonCheck the rotation of the pump Check the compressorStopping the Chiller Operation TIC Control Features DisplayBefore Starting Check that the casters are lockedStarting Stopping Chiller Changing Settings Changing Setpoint TemperaturePress Menu button once Press the Up/Down arrowsChanging Temperature Scale Changing to Auto Tune ModeChanging Auto Tune Mode Use the Up/Down arrows to changePress Enter button Apply a load to the ChillerSetting the to Process LOW Limit Maintenance Maintenance Features UGH016/0500 Series 1 Portable Chillers, TIC Control Preventative Maintenance Schedule Checking electrical connectionsInspecting the condenser coil for debris Checking refrigerant site glassCleaning Cleaning process fluid strainerInspecting cooling water treatment system Inspecting condenserCheck the refrigerant charge through the sight glass Cleaning Evaporator or WATER-COOLED Condenser Cleaning AIR-COOLED Condenser Coil cleanerInspect the coils Use a flashlight to check between coil surfacesBe sure the main power is disconnected Disconnect and lockout power to the chiller Checking Reservoir LevelLocate the fill port on the back of the chiller Refill the reservoirTroubleshooting Before Beginning FEW Words of CautionIdentifying Cause Problem DAY TimeAnswering AN Alarm Pump Compressor Alarm Condition Description StatusPower is not reaching the chiller Control ProblemsThere is a problem with the control panel Symptom Possible cause Solution Input voltage is incorrect There is a phase lossMechanical Conditions Failed Level switchWater level in tank is low Low Faulty contactor Faulty overload modulePump Overload Overload set incorrectly. pump and compres Low supply voltageAlarm Possible cause Overload set incorrectlyClogged/dirty air-cooled Compressor discharge Valve closedFailed flow switch Pressure switch isFaulty No or low flow with aCompressor failed Contact Conair Service Leads are backwardsChecking Replacing Switches Check the switchReplace the switches as needed Slide the top of the switch housing over untilDisconnect the wiring from the contactor Reconnect the wiring and reconnect powerReplacing the Contactor Remove the contactor by snapping offChecking and Replacing Contact Conair Service for the temperature Replacing Temperature ControllerSlide the new controller in until Reconnect wires and leads Restore power to the chillerReplacing Overload Modules Rating of compressor, fan or pumpReplacing Fuses Remove and replace fusesRemove the pump assembly Inspect, clean, and replace pump partsRemoving Pump Components Open the drain/fill valveChecking Pressure Switches Locate the pressure switchDAY Time Check the connectionsCheck the continuity within the switch Make sure it corresponds to the following conditionsPage WE’RE Here to Help From outside the United States, call2SERVICE Information Warranty Information Maintenance LOG Date Maintenance ItemPage Pressure Tables Appendix C-2Control Settings Display Parameter Description Setting UnitsPage Parts & Diagrams Recommended Spare Parts Part Number DescriptionSpare Parts P/D-3 4SPARE Parts Spare Parts P/D-5 6SPARE Parts