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NESLAB CFT Series Recirculating Chiller Thermo Manual P/N U00362 Rev. 08/18/99 Instruction and Operation Manual No part of this publication may be repro- duced or reprinted except for personal use without the prior permission of Thermo Electron.
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NESLAB CFT Series Recirculating Chiller PREFACE SECTION I Safety SECTION II General Information SECTION III Installation SECTION IV Operation SECTION V Maintenance & Service SECTION VI Troubleshooting WARRANTY...
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CFT Series Quick Reference Operating Procedures Installation Temperature Adjustment Periodic Maintenance Operation...
Preface Compliance Unpacking Warranty NES-care Extended Warranty Contract After-sale Support - unit BOM number_________________________________ - unit serial number ________________________________ - software version (see page 23)_______________________...
Section I Safety Warnings Never place the unit in a location where excessive heat, moisture, or corrosive materials are present. The unit construction provides protection against the risk of electrical shock by grounding appropriate metal parts. The protection may not function unless the power cord is connected to a properly grounded outlet.
Additional Warnings Performance of installation, operation, or maintenance procedures other than those described in this manual may result in a hazardous situation and may void the manufacturer's warranty. Transport the unit with care. Sudden jolts or drops can damage the refrigeration lines.
Section II General Information Description Specifications Cooling Capacity CFT-25 CFT-33 CFT-75 CFT-150 CFT-300 Temperature Range Temperature Stability Reservoir Volume Gallons Liters Refrigerant Pollution Degree...
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CFT25 CFT33 CFT75 CFT150 CFT300 24½ 26½ 36¾ Dimension A 12½ 14¾ 25½ Dimension B 24½ 27¾ 27¾ Dimension C 2¾ 2½ 2½ 3½ 2¾ Dimension D 23½ Dimension E 18½ 32¼ 38¼ Dimension F 21½ 35¼ 41¼ Dimension G 1½...
Electrical Requirements The unit construction provides protection against the risk of electrical shock by grounding appropriate metal parts. The protection may not function unless the power cord is connected to a properly grounded outlet. It is the user's responsibility to assure a proper ground connec- tion is provided.
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® Fluids Never use flammable or corrosive fluids with this unit. Do not use automotive anti-freeze. Commercial anti-freeze contains silicates that can damage the pump seals. Use of automotive anti-freeze will void the manufacturers warranty. 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.
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Water Quality Standards and Recommendations Permissible (PPM) Desirable (PPM) Microbiologicals Inorganic Chemicals Other Parameters CONSULT MATERIALS ENGINEER...
Filling Requirements Circulating to a closed system (closed to the atmosphere) NOTE: Do not replace reservoir plug with a non-vented type or damage to the tank may occur. Circulating to an open system (open to the atmosphere) ®...
Digital Controller COOL IDLE °C NEXT ENTER NEXT ENTER YES, NEXT ENTER NEXT ENTER NOTE: NEXT ENTER NEXT ENTER NOTE:...
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Temperature Limits NEXT ENTER NEXT ENTER Pressure Relief Valve High/Low Pressure Cutouts...
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High Temperature Cutout (Optional) NOTE: Heater Package (Optional) Do not used silicon-based fluids with units designed to operate at high temperatures. These type fluids will damage the hoses and pump seal. Fluid Level Fluid Level Illustration B Illustration A...
Section V Maintenance and Service For personal safety and equipment reliability, only a qualified techni- cian should perform the following procedures. Contact our Service Department for assistance (see Preface, After-sale Support). Service Contracts Draining the Reservoir NOTE: Do not blow high-pressure air into the system. Doing so may rupture the reservoir.
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Pump Motor Lubrication Some Duty Cycle Oiling Frequency Hoses Suction Discharge Pressure Speed Check...
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Error Codes Display Indication NOTE: Displaying Software Version 2 0 . 3 0 5 0 7 left right 0 0 0 0 2 0 . 3...
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CFT-300 Fuses Always turn off the unit and disconnect the line cord from the power source before attempting to do any service. Pump Flow Diagram...
Section VI Troubleshooting Checklist Unit will not start Unit will not circulate fluid Inadequate temperature control Service Assistance - unit BOM number - unit serial number - voltage of unit - voltage of power source - software version...
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