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

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Minerals and other contaminants produce deposits, scales, slime, or algae on the heat transfer surfaces exposed to water. Fouled surfaces result in decreased cooling capacity. Implement a water treatment program to slow the fouling.

CAUTION: Hot Surfaces

Always protect yourself from hot surfaces when working on the Portable Chiller, especially when working on or around the compressor and con- denser. These devices can reach up to 160 °F (71 °C). Allow these devices to cool before per- forming any maintenance or troubleshooting.

Water quality should be maintained at a pH of 7.4, but not less that 6.0 for proper heat exchanger life.

To clean:

1 Prepare a 5% solution of Phosphoric acid

or Oxalic acid. Do not heat the acid solution.

CLEANING THE

EVAPORATOR OR

WATER-COOLED

CONDENSER

2	Shut the From Process valve.

3	Disconnect the pump from the heat exchanger.
	Install a cap in the opening of the heat exchanger where
	the pump was connected.

4	Connect 1/2-inch tubing to the 1/2-inch
	connections of the heat exchanger.

5	Back-flush the solution through the
	heat exchanger and the chiller.

6	Flush the heat exchanger and the chiller
	piping with fresh water after cleaning.

7	Reconnect the chiller pump to the
	heat exchanger. Remove the cap in the heat exchanger
	and reconnect the hose from the pump.

					1/2 inch connection on
		Heat			1/2 inch connection on
		Exchanger			outside of chiller cabinet

Fluid circuit

Acid solution

To Process connection

Out

In

Out

In

UGH016/0500

Series 1 Portable Chillers, TIC Control

MAINTENANCE 5-7

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Contents Portable Chillers Conair GROUP, INC Introduction Table of ContentsParts and Diagrams . . . . . . . . . . . .P/D-1 Introduction Your Responsibility AS a User Purpose User GuideHOW Guide is Organized Read this SO no ONE Gets Hurt Page Description What is Portable CHILLER? Location TemperatureTypical Applications Cooling loadProcess 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 Available water source Preparing for InstallationGrounded power source Connect the To Process valve and tubing on Making Process Plumbing ConnectionsWrap threads with Mylar or Teflon tape Close the Fill/Drain valve Filling the ChillerAttach water hose to Fill/Drain valve Open the Fill/Drain valve and fill chillerCheck the coolant level Change the minimum operating temperatureChecking Refrigerant Charge Connect the ground wire to grounding lug Connecting Main Power SourceOpen electrical enclosure Close the electrical enclosure Turn on main power sourceChecking Electrical Connections Check the compressor Initially Starting ChillerPress the Start Chiller button Check the rotation of the pumpStopping the Chiller Operation Display TIC Control FeaturesCheck that the casters are locked Before StartingStarting Stopping Chiller Press the Up/Down arrows Changing SettingsChanging Setpoint Temperature Press Menu button onceChanging to Auto Tune Mode Changing Temperature ScaleApply a load to the Chiller Changing Auto Tune ModeUse the Up/Down arrows to change Press Enter buttonSetting the to Process LOW Limit Maintenance Maintenance Features UGH016/0500 Series 1 Portable Chillers, TIC Control Checking refrigerant site glass Preventative Maintenance ScheduleChecking electrical connections Inspecting the condenser coil for debrisInspecting condenser CleaningCleaning process fluid strainer Inspecting cooling water treatment systemCheck the refrigerant charge through the sight glass Cleaning Evaporator or WATER-COOLED Condenser Use a flashlight to check between coil surfaces Cleaning AIR-COOLED CondenserCoil cleaner Inspect the coilsBe sure the main power is disconnected Refill the reservoir Disconnect and lockout power to the chillerChecking Reservoir Level Locate the fill port on the back of the chillerTroubleshooting FEW Words of Caution Before BeginningDAY Time Identifying Cause ProblemPump Compressor Alarm Condition Description Status Answering AN AlarmThere is a problem with the control panel Control ProblemsPower is not reaching the chiller Input voltage is incorrect There is a phase loss Symptom Possible cause SolutionWater level in tank is low Failed Level switchMechanical Conditions Low Low supply voltage Faulty contactorFaulty overload module Pump Overload Overload set incorrectly. pump and compresOverload set incorrectly Alarm Possible causeClogged/dirty air-cooled Valve closed Compressor dischargeNo or low flow with a Failed flow switchPressure switch is FaultyLeads are backwards Compressor failed Contact Conair ServiceSlide the top of the switch housing over until Checking Replacing SwitchesCheck the switch Replace the switches as neededRemove the contactor by snapping off Disconnect the wiring from the contactorReconnect the wiring and reconnect power Replacing the ContactorChecking and Replacing Slide the new controller in until Replacing Temperature ControllerContact Conair Service for the temperature Rating of compressor, fan or pump Reconnect wires and leadsRestore power to the chiller Replacing Overload ModulesRemove and replace fuses Replacing FusesOpen the drain/fill valve Remove the pump assemblyInspect, clean, and replace pump parts Removing Pump ComponentsCheck the connections Checking Pressure SwitchesLocate the pressure switch DAY TimeMake 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