Summary of Contents for Electron Thermo 3684
- Page 1 Models: 3684, 3686, & 3688 Laboratory Refrigerators Operating and Maintenance Manual Manual No: 7003688 Rev. 9...
- Page 2 The material in this manual is for information purposes only. The contents and the product it describes are subject to change with- out notice. Thermo Electron Corporation makes no representa- tions or warranties with respect to this manual. In no event shall Thermo be held liable for any damages, direct or incidental, aris- ing out of or related to the use of this manual.
- Page 3 Model 3680 Series ____________________________________________________________________ Alerts the user to important operating and/or maintenance instructions. May be used alone or with other safety sym- bols. Read the accompanying text carefully. Potential electrical hazards. Only qualified persons should perform the instructions and procedures associated with this symbol.
- Page 4 Model 3680 Series ____________________________________________________________________...
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Page 6: Table Of Contents
Model 3680 Series ____________________________________________________________________ Table of Contents Section 1 - Installation and Start-Up ....1 - 1 1.1 Location and Unpacking ..... .1 - 1 1.2 Leveling . -
Page 8: Section 1 - Installation And Start-Up
Model 3680 Series __________________________________________________________________Installation and Start-Up Section 1 - Installation and Start-Up 1.1 Location and Unpacking Two wall mounts are attached to the top rear of the unit. Remove the wall mounts and reverse their position. Reattach to This unit will operate most efficiently and safely under these conditions: the unit. -
Page 9: Installing The Shelves
Model 3680 Series __________________________________________________________________Installation and Start-Up 3. The factory setpoint for chamber temperature is 5°C. 1.4 Installing the Shelves Allow the unit to cool down to setpoint. The chamber Adjust each shelf position by inserting the shelf support temperature is displayed on the temperature indicator clips into the slots at the desired level. -
Page 10: Section 2 - Control Panel Procedures
Model 3680 Series __________________________________________________________________Control Panel Procedures Section 2 - Control Panel Procedures 2.1 Temperature Control The table below shows basic operation procedures for the keys indicated. Follow the sequence as shown. The temperature setpoint range is between 2° and 14°C. Factory setpoint is 5°C. -
Page 11: Key Lock Control
Model 3680 Series __________________________________________________________________Control Panel Procedures 2.2 Key Lock Control The key lock feature on this unit is to prevent unwanted temperature setpoint changes. This feature is factory set to OFF. To enter key lock mode, follow the sequence shown below. Operation Display Mode... -
Page 12: Low Temperature Setpoint
Model 3680 Series __________________________________________________________________Control Panel Procedures b. Low Temperature Setpoint Operation Display Mode TEMPERATURE (°C) TEMPERATURE (°C) ---- Current chamber Temperature temperature Display 0 0 4 Press for 5 seconds The first digit on the temperature display Temperature F 0 0 flashes Alarm Set Set the first digit to “2”... -
Page 14: Section 3 - Maintenance
Model 3680 Series ____________________________________________________________________________Maintenance b. Cleaning the Condenser (3684, 3686) Section 3 - Maintenance Clean the condenser using a vacuum sweeper. Disconnect the unit from power before beginning c. Cleaning the Condenser Filter (3688) any installation or service procedure. To prevent dust from clogging the condenser, a filter is installed to the right of the evaporation tray. -
Page 16: Section 4 - Troubleshooting
Model 3680 Series _______________________________________________________________________Troubleshooting Section 4 – Troubleshooting Type Symptom Indication Alarm Buzzer Safety Response High Chamber temp Alarm light Intermittent after Remote alarm is activated Temp deviates from 2°C to flashes 15 minute delay after 15 minute delay Alarm 14°C above setpoint Temp display flashes... -
Page 17: Discarding Or Taking Refrigerator Out Of Service
Model 3680 Series _______________________________________________________________________Troubleshooting Problem Possible Cause Nothing operates even when turned on • Check electrical power • Electric power has failed or been disconnected Key Operation Unavailable • Is Key Lock set to OFF? Poor Refrigeration • Temperature control not properly set •... -
Page 18: Section 5 - Specifications
Model 3680 Series ___________________________________________________________________________Specifications Section 5 – Specifications Model 3684 Model 3686 Operating Temperature Operating Temperature +2°C (+35.6°F) to +14°C (+57.2°F) +2°C (+35.6°F) to +14°C (+57.2°F) Temperature Control Temperature Control Electronic control with digital Electronic control with digital temperature readout, readable to the temperature readout, readable to the nearest °C. - Page 19 Model 3680 Series ___________________________________________________________________________Specifications Model 3688 Operating Temperature +2°C (+35.6°F) to +14°C (+57.2°F) Temperature Control Electronic control with digital temperature readout, readable to the nearest °C. Defrost Heater 175W Fan Motor Chamber – output 9W (2) Condenser – output 4W (1) Compressor 0.4 HP hermetically sealed Refrigeration...
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Page 20: Section 6 - Parts List
Model 3680 Series _____________________________________________________________________________Parts List Section 6 - Parts List 3684/3686 3688 Description Stock # Stock # 227831 227929 Compressor 227774 227774 Starting Relay 227835 227775 Overload Relay 227936 227936 Overtemp Relay 227930 227930 Starting Capacitor 227931 227931 Running Capacitor 227933 227933 Undertemp Thermostat... - Page 28 At Thermo's option, all non-conforming parts must be returned to Thermo Electron Corporation postage paid and replacement parts are shipped FOB destination. THIS WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, WHETHER WRITTEN, ORAL OR IMPLIED.
- Page 29 THERMO ELECTRON CORPORATION INTERNATIONAL DEALER WARRANTY The Warranty Period starts two months from the date your equipment is shipped from our facility. This allows for shipping time so the warranty will go into effect at approximately the same time your equipment is delivered. The warranty protec- tion extends to any subsequent owner during the first year warranty period.
- Page 30 Thermo Electron Corporation Controlled Environment Equipment Millcreek Road, P.O. Box 649 Marietta, Ohio 45750 U.S.A. Telephone (740) 373-4763 Telefax (740) 373-4189...
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