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Conair UGH016/0500 Mechanical Conditions, Alarm, Possible cause, Solution, Cont’D, valve closed

Models: UGH016/0500 Portable Chillers Series 1Water-Cooled (W1) and Air-Cooled Models (A1) withTIC Control

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MECHANICAL

CONDITIONS

CONT’D

Alarm

Possible cause

Solution

High Discharge	Compressor discharge
Pressure, cont’d	valve closed.

Overcharged with refrig- erant.

Faulty water regulating valve.

Faulty pressure switch.

Open valve.

See Checking the Refrigerant Charge in the Maintenance section.

Repair or replace the valve.

See Checking the Pressure Switches, in the Troubleshooting section.

6-12TROUBLESHOOTING Series 1 Portable Chillers, TIC Control

UGH016/0500

Page 62

Image 62

Conair UGH016/0500 Mechanical Conditions, Alarm, Possible cause, Solution, Cont’D, Compressor discharge, valve closed

Contents

Installation Operation Maintenance Series 1 Water-CooledW1 andAir-CooledModels A1 with TIC Control TroubleshootingDate Manual Number UGH016/0500 Serial numbers Model numbers Power specifications Amps VoltsPhase Cycle DESCRIPTION TABLE OF CONTENTSINTRODUCTION PARTS AND DIAGRAMS . . . . . . . . . . . .P/D-1 MAINTENANCETROUBLESHOOTING TABLE OF CONTENTSHow the guide is organized INTRODUCTIONPurpose of the User Guide Your responsibilities as a userYOUR RESPONSIBILITY AS A USER PURPOSE OF THE USER GUIDEHOW THE GUIDE IS ORGANIZED CAUTION Ventilation hazard WARNING Electrical hazardCAUTION Hot Surfaces READ THIS SO NO ONE GETS HURTPage DESCRIPTION WHAT IS THE PORTABLE CHILLER? LIMITATIONS TYPICAL APPLICATIONSTemperature Cooling loadDESCRIPTION HOW IT WORKS WATER-COOLED PORTABLE CHILLERProcess circulation WATER-COOLED Refrigerant circulationHOW IT WORKS CONT’DHOW IT WORKS AIR-COOLED PORTABLE CHILLER DESCRIPTIONDESCRIPTION HOW IT WORKSAIR-COOLED PORTABLE CHILLER Water-cooledModels CHILLER FEATURESPORTABLE PORTABLE CHILLER FEATURES Air-cooledModelsDimensions in mm SPECIFICATIONS2-10 Weight lb kgDESCRIPTION Dimensions in mmWeight lb kg MODEL60 HZ PUMP PERFORMANCE CURVES PUMP CURVES2-12 50 HZ PUMP PERFORMANCE CURVESINSTALLATION UNPACKING THE BOXES CAUTION Lifting hazardCAUTION Ventilation hazard WARNINGS AND CAUTIONSCAUTION Hot Surfaces Available water source PREPARING FOR INSTALLATIONA grounded power source Connect the To Process valve and tubing on MAKING PROCESS PLUMBING CONNECTIONS3 Wrap threads with Mylar or Teflon tape Open the Fill/Drain valve and fill chiller FILLING THE CHILLERAttach water hose to Fill/Drain valve Close the Fill/Drain valveOpen the Fill/Drain valve and fill chiller Change the minimum operating temperatureFILLING THE CHILLER Close the Fill/Drain valveSight glass CHECKING REFRIGERANT CHARGEWARNING Refrigerant hazard 4 Connect the ground wire to grounding lug CONNECTING THE MAIN POWER SOURCE2 Connect the power wires to the terminals WARNING Electrical hazard5 Turn on main power source CHECKING ELECTRICAL CONNECTIONS3-10 WARNING Electrical hazardWARNING Initial startup INITIALLY STARTING THE CHILLER1 Turn on main power source 2 Press the Start Chiller buttonSTOPPING THE CHILLER 3-12Changing Settings OPERATIONTIC Control Features Changing Temperature ScaleTIC CONTROL FEATURES OPERATIONChecking electrical connections BEFORE STARTINGWARNING Electrical hazard Checking process fluid level in the pump tankSTARTING STOPPING THE CHILLER Press the Start Chiller buttonTemperature Setpoint CHANGING SETTINGSCHANGING THE SETPOINT TEMPERATURE Temperature Scale2 Press the Enter button CHANGING TEMPERATURE SCALECHANGING TO AUTO TUNE MODE 3 Press the Up/Down arrows5 Use the Up/Down arrows to change CHANGING AUTO TUNE MODE4 Press the Menu button 6 Press Enter buttonSETTING THE TO PROCESS LOW LIMIT 3 Press the Up/Down arrowsMAINTENANCE MAINTENANCE FEATURES CAUTION Hot Surfaces WARNING AND CAUTIONSWARNING Electrical hazard WARNING: Refrigerant hazardWeekly, or as often as needed PREVENTATIVE MAINTENANCE SCHEDULEDaily, or as often as needed Checking electrical connectionsCleaning process fluid strainer PREVENTATIVE MAINTENANCE SCHEDULECleaning Cleaning the tank and float switchCHECKING THE REFRIGERANT CHARGE WARNING Refrigerant hazardBack-flushthe solution through the CLEANING THE EVAPORATOR OR WATER-COOLED CONDENSER1 Prepare a 5% solution of Phosphoric acid piping with fresh water after cleaningcoil cleaner CLEANING THE AIR-COOLED CONDENSERClean the dirty coils with a soft brush WARNING: Electrical hazard5 Inspect the exterior power cords 1 Be sure the main power is disconnected3 Inspect all wires and connections CHECKING ELECTRICAL CONNECTIONSDisconnect and lockout power to the chiller CHECKING RESERVOIR LEVEL5-10 WARNING Electrical hazardTROUBLESHOOTING WARNING Electrical hazard BEFORE BEGINNINGA FEW WORDS OF CAUTION WARNING: Refrigerant hazardIDENTIFYING THE CAUSE OF A PROBLEM TIMEPump ANSWERING AN ALARMAlarm Condition CompressorSolution CONTROL PROBLEMSSymptom Power is not reaching the chillerSolution CONTROL PROBLEMSSymptom There is a phase lossSolution MECHANICAL CONDITIONSAlarm Failed Level switchSwitch any two of the three AlarmSolution main power leads to the pumpFaulty contactor Possible cause SolutionAlarm Faulty overload moduleFaulty contactor AlarmSOLUTION Faulty overload moduleSpecifications in the AlarmSolution MECHANICAL CONDITIONSFaulty water regulating valve AlarmSolution Faulty pressure switchfailed flow switch and AlarmSolution The pressure switch isContact Conair Service SymptomSolution MECHANICAL CONDITIONS3 Check the switch CHECKING AND REPLACING SWITCHES1 Disconnect and lockout power to the chiller 4 Replace the switches as neededDisconnect the wiring from the contactor REPLACING THE CONTACTORDisconnect and lockout power to the chiller Reconnect the wiring and reconnect power5 Disconnect the RTD wiring from the CHECKING AND REPLACING THE1 Disconnect and lockout power to the chiller 7 Install the new RTD2 Snap the Temperature Controller board out REPLACING THE TEMPERATURE CONTROLLER1 Disconnect and lockout power to the chiller 4 Contact Conair Service for the temperature4 Disconnect auxiliary wiring to the module REPLACING OVERLOAD MODULES1 Disconnect and lockout power to the chiller 6 Install the new moduleRestore power to the chiller REPLACING FUSESDisconnect and lockout power to the chiller WARNING Electrical hazardRemove the pump assembly REMOVING PUMP COMPONENTSRemove the bolts connecting the pump Inspect, clean, and replace pump partsLocate the pressure switch CHECKING PRESSURE SWITCHESTIME Check the control signal in the electrical panelCONT’D CHECKING PRESSURE SWITCHES4 Check the continuity within the switch DescriptionPage CALL WE’RE HERE TO HELPHOW TO CONTACT CUSTOMER SERVICE BEFORE YOUA-2 SERVICE INFORMATION WARRANTY INFORMATION EQUIPMENT GUARANTEE PERFORMANCE WARRANTYWARRANTY LIMITATIONS Suction pressure Evaporator water out temperature MAINTENANCE LOGDate Maintenance Item Condenser Water Temperature, In/OutPage Pressure Drops Evaporator and PipingPRESSURE TABLESAPPENDIX C-2 PRESSURETABLES W1-1.5Display CONTROL SETTINGSSetting ParameterPage PARTS & DIAGRAMS P/D-1Part Number Description RECOMMENDED SPARE PARTSP/D-2 Motor Starter Protector 20.0-25.0A RECOMMENDED SPARE PARTSPart Number Description Part Number Description 20973003 Flowtect, Flow Switch, Evap CircuitRECOMMENDED SPARE PARTS 29213105 TXV 2 ton Water- and Air-cooled RECOMMENDED SPARE PARTSPart Number Description Condenser Fan Motor, 1/2HP, 575V, 60Hz, for A1-7.5 RECOMMENDED SPARE PARTSPart Number Description

Compressor discharge

valve closed.

Overcharged with refrig- erant.

Faulty water regulating valve.

Faulty pressure switch.