Conair Portable Chillers Series 1Water-Cooled (W1) and Air-Cooled Models (A1) withTIC Control

Page 69

WARNING: Electrical hazard

Before performing any work on this unit, discon- nect and lock out electrical power sources to prevent injury from unexpected energization or startup.

Normally if the overload trips, resetting the overload and cor- recting the cause is typically all that is needed. However, if the overload continues to trip, it may be necessary to replace the overload module.

To replace the overload module:

1 Disconnect and lockout power to the chiller.

2	Open the electrical enclosure.

3	Locate the overload module and disconnect

the power leads from the module to the device. Refer to the wiring diagram for the exact location. Note the place- ment of each lead and label as needed.

4 Disconnect auxiliary wiring to the module.

5 Loosen the screws and remove the module.

6 Install the new module

and tighten in place with the screws.

7	Reconnect wires and leads.

8	Adjust setting to correct Full Load Amps
	rating of compressor, fan or pump.

9	Restore power to the chiller.

Pump overload

module

Compressor over-

load module

REPLACING

OVERLOAD

MODULES

Always refer to the wiring dia- grams you received with your chiller to locate specific elec- trical components.

UGH016/0500

Series 1 Portable Chillers, TIC Control TROUBLESHOOTING 6-19

Image 69

Contents Portable Chillers Conair GROUP, INC Introduction Table of ContentsParts and Diagrams . . . . . . . . . . . .P/D-1 Introduction Purpose User Guide HOW Guide is OrganizedYour Responsibility AS a User Read this SO no ONE Gets Hurt Page Description What is Portable CHILLER? Typical Applications TemperatureCooling load LocationProcess circulation HOW IT Works WATER-COOLED Portable ChillerHOW IT Works HOW IT Works AIR-COOLED Portable Chiller AIR-COOLED Portable Chiller HOW IT WorksWater-cooled Models Chiller FeaturesAir-cooled Models Portable Chiller FeaturesModel SpecificationsSpecifications Pump Curves Installation Unpacking the Boxes UGH016/0500 Series 1 Portable Chillers, TIC Control Preparing for Installation Grounded power sourceAvailable water source Making Process Plumbing Connections Wrap threads with Mylar or Teflon tapeConnect the To Process valve and tubing on Attach water hose to Fill/Drain valve Filling the ChillerOpen the Fill/Drain valve and fill chiller Close the Fill/Drain valveCheck the coolant level Change the minimum operating temperatureChecking Refrigerant Charge Connect the ground wire to grounding lug Connecting Main Power SourceClose the electrical enclosure Turn on main power source Checking Electrical ConnectionsOpen electrical enclosure Press the Start Chiller button Initially Starting ChillerCheck the rotation of the pump Check the compressorStopping the Chiller Operation Display TIC Control FeaturesCheck that the casters are locked Before StartingStarting Stopping Chiller Changing Setpoint Temperature Changing SettingsPress Menu button once Press the Up/Down arrowsChanging to Auto Tune Mode Changing Temperature ScaleUse the Up/Down arrows to change Changing Auto Tune ModePress Enter button Apply a load to the ChillerSetting the to Process LOW Limit Maintenance Maintenance Features UGH016/0500 Series 1 Portable Chillers, TIC Control Checking electrical connections Preventative Maintenance ScheduleInspecting the condenser coil for debris Checking refrigerant site glassCleaning process fluid strainer CleaningInspecting cooling water treatment system Inspecting condenserCheck the refrigerant charge through the sight glass Cleaning Evaporator or WATER-COOLED Condenser Coil cleaner Cleaning AIR-COOLED CondenserInspect the coils Use a flashlight to check between coil surfacesBe sure the main power is disconnected Checking Reservoir Level Disconnect and lockout power to the chillerLocate the fill port on the back of the chiller Refill the reservoirTroubleshooting FEW Words of Caution Before BeginningDAY Time Identifying Cause ProblemPump Compressor Alarm Condition Description Status Answering AN AlarmControl Problems Power is not reaching the chillerThere is a problem with the control panel Input voltage is incorrect There is a phase loss Symptom Possible cause SolutionFailed Level switch Mechanical ConditionsWater level in tank is low Low Faulty overload module Faulty contactorPump Overload Overload set incorrectly. pump and compres Low supply voltageOverload set incorrectly Alarm Possible causeClogged/dirty air-cooled Valve closed Compressor dischargePressure switch is Failed flow switchFaulty No or low flow with aLeads are backwards Compressor failed Contact Conair ServiceCheck the switch Checking Replacing SwitchesReplace the switches as needed Slide the top of the switch housing over untilReconnect the wiring and reconnect power Disconnect the wiring from the contactorReplacing the Contactor Remove the contactor by snapping offChecking and Replacing Replacing Temperature Controller Contact Conair Service for the temperatureSlide the new controller in until Restore power to the chiller Reconnect wires and leadsReplacing Overload Modules Rating of compressor, fan or pumpRemove and replace fuses Replacing FusesInspect, clean, and replace pump parts Remove the pump assemblyRemoving Pump Components Open the drain/fill valveLocate the pressure switch Checking Pressure SwitchesDAY Time Check the connectionsMake sure it corresponds to the following conditions Check the continuity within the switchPage From outside the United States, call WE’RE Here to Help2SERVICE Information Warranty Information Date Maintenance Item Maintenance LOGPage Pressure Appendix C-2 TablesDisplay Parameter Description Setting Units Control SettingsPage Parts & Diagrams Part Number Description Recommended Spare PartsSpare Parts P/D-3 4SPARE Parts Spare Parts P/D-5 6SPARE Parts