Thermo Scientific NESLAB System IV, Instruction And Operation Manual

Page 1: ...NESLAB System IV Liquid to Liquid Heat Exchanger Thermo Manual P N U00682 Rev 11 10 03 Instruction and Operation Manual ...

Page 2: ...I Safety Warnings 4 SECTION II General Information Description 5 Specifications 5 SECTION III Installation Site 6 Facility Water Requirements 6 Electrical Requirements 7 Voltage Selection 7 Plumbing Requirements 7 Fluids 8 Filling Requirements 9 Auto Refill Device Optional 9 Flow Control 9 Auto Restart 9 SECTION IV Operation Start Up 10 Temperature Controller 11 Tune Loop 12 ...

Page 3: ...ernal Interlock Contact 14 Fuses 14 Phase Rotation 14 Pump Motor Overload Protector 15 Displaying Software Version 15 SECTION VI Troubleshooting Error Codes 16 Service Assistance 17 Technical Support 17 SECTION VII Diagrams Flow Diagram 18 Rear View 19 APPENDIX Water Quality Standards and Recommendations 20 SECTION VIII Warranty 21 ...

Page 4: ...to operate properly or if you have questions concerning spare parts or Service Contracts contact our Service Department see back cover Before calling please obtain the following information from the unit s serial number label on the rear of the unit BOMnumber________________________________ Serialnumber_______________________________ Warranty Units have a warranty against defective parts and workm...

Page 5: ...leaking equipment Never operate the unit without cooling fluid in the reservoir Always turn off the unit and disconnect the line cord from the power source before performing any service or maintenance procedures or before moving the unit Always empty the reservoir before moving the unit Never operate equipment with damaged line cords Refer service and repairs to a qualified technician In addition ...

Page 6: ...apacity2 Reservoir Volume Gallons Liters Unit Dimensions3 H x W x D Inches Centimeters 5 C to 40 C 1 0 C 50 gpm at 60 psi 6 5 24 6 33 x 23 0 x 27 0 85 7 x 58 4 x 68 6 1 Cooling capacity based on a 10 C difference between the temperature of the cooling water supply and a 35 gpm process water flow rate using a 3 horsepower centrifugal pump and 55 psi tap water pressure 2 CP 100 pump customizing opti...

Page 7: ...e standards the cooling capacity will be derated The chart is based on a 10 C difference between the temperature of the cooling water supply and the pro cess fluid entering the instrument being cooled As the heat load increases the required flow rate of the cooling water supply increases For example if the heat load is 60 kilowatts only 20 gallons per minute is required to remove the heat However ...

Page 8: ...ECIRCULATING WATER connections are 1 inch nominal FPT See illustration on page 19 Before installing the unit to an instrument that previously used tap water as a cooling fluid flush the instrument several times to remove any rust or scale that has built up The manufacturer of the instrument should be able to recommend a cleaning fluid for their equipment Connect the FACILITY WATER SUPPLY to the co...

Page 9: ...commend using distilled deionized water with a 0 05 to 0 1 megohm cm reading Highly distilled deionized water above the 3 megohm cm region may become aggressive and is not recommended for use with units with wetted parts other than stainless steel Distilled deionized water in the 15 megohm cm region is definitely aggressive and should not be used Units operating in these regions should be closely ...

Page 10: ...ed fitting on the solenoid valve to the make up fluid source using 5 16 or 3 8 inch ID flexible tubing Tubing is available from Thermo Contact our Sales Department for more information seePreface After saleSupport Flow Control TheRECIRCULATINGFLOWCONTROLhandleisconnectedtoathree way valve that controls the flow of the cooling fluid to the instrument being cooled The handle is located on the front ...

Page 11: ...ated tripping of the monitor If the unit shuts down top off the reservoir and restart it When the system is full the reservoir level will no longer drop when the RECIRCULATING FLOW CONTROL valve is opened toward A control valve located in the FACILITY WATER inlet line regulates the flow rate of the cooling water supply as it enters the unit The valve regulates the flow rate based on the heat load ...

Page 12: ...ing temperature remember that the lowest achiev able temperature is a function of the available flow rate the temperature of the cooling water supply and the heat load The temperature control system actuates a control valve in the FACILITY WATER line The control valve adjusts the flow of the cooling water supply to produce the desired operating temperature NOTE The controller does not use the new ...

Page 13: ...ES to display CooL Press NEXT ENTER to display Stor press YES to accept all the changes press NO to abort all changes and restore all the previous values The controller will again display the fluid temperature Press NEXT ENTER to display the alarm ALr prompt Press YES to display Indc and have the unit continue to run in the case of a fault Press NO to display FLt and have the unit shut down in the...

Page 14: ...r source and turn off the facility cooling water Place a container under the strainer to collect any water that spills out of the basket when it is removed Unscrew the clear plastic basket Remove the screen and rinse it with water Replace the screen and the basket Algae To restrict the growth of algae in the reservoir it is recommended that the reservoir cover be kept in place and that all circula...

Page 15: ...rned off or when a fault is detected Fuses The main fuses are 20 Amp RK5 The controller fuses are 1 Amp time delay Do not replace with an alternate amperage Single Phase Units Remove the top cover from the cabinet The fuses are located on the right side of the control box Three Phase Units Remove the top cover the right access panel and the control box cover The fuses are located inside the contro...

Page 16: ... s display In the event the unit is not operational the software version and the check sum can also be read from the label which is on the microprocessor chip itself The following chart uses an example of software version 000550 93A begin at the reservoir temperature display 2 0 3 C Press and hold NO for at least 10 seconds 0 5 5 0 displays software version digits to left of decimal Note the two l...

Page 17: ... turned off in the Setup Loop If Er16 is displayed the unit needs calibration contact us for assistance Display Indication Er 04 13 Interrupt error Er 14 Synchronous error Er 15 Asynchronous error Er 16 Bad calibration Latching Errors In order to restart the unit when a latching error is displayed the controller s START STOP button must be pressed after the condition is cleared Display Indication ...

Page 18: ...er sale Support Before calling please obtain the following information Part number Serial number Voltage of unit Voltage of power source SoftwareVersion Technical Support Our Service Department can provide you with a complete list of spare parts for your unit see Preface After sale Support Before calling please obtain thefollowinginformation Part number Serial number ...

Page 19: ... 18 Section VII Diagrams Flow Diagram ...

Page 20: ... 19 Rear View ...

Page 21: ...uality at a resistivity of between 1 to 10 megohm cm compensated to 25 C by using a purification system Although the initial fill may be as high as 10 megohm cm compensated to 25 C the desired level for long time usage is 1 to 3 megohm cm compensated to 25 C The above two recommendations will reduce the electrolytic potential of the water and prevent or reduce thegalvaniccorrosionobserved Water Qu...

Page 22: ...improper installation or maintenance or to any unit that has been operated or maintained in any way contrary to the operating or maintenance instructions specified in Thermo s Instruction and Operation Manual This warranty does not cover any unit that has been altered or modified so as to change its intended use In addition this warranty does not extend to repairs made by the use of parts accessor...