Thermo Scientific 722 Operating And Maintenance Manual
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Thermo Scientific 722 Operating And Maintenance Manual

Thermo Scientific 722 Operating And Maintenance Manual

Forma -40c lab freezer
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Models 722, 727, 728, 729
Forma -40C Lab Freezer
Operating and Maintenance Manual
Manual No: 7020722 Rev. 5

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  • Page 1 Models 722, 727, 728, 729 Forma -40C Lab Freezer Operating and Maintenance Manual Manual No: 7020722 Rev. 5...
  • Page 2 Model 700 Series -40C _______________________________________________________________________________ Model Capacity in Cubic Feet Voltage Read This Instruction Manual. Failure to read, understand and follow the instructions in this manual may result in damage to the unit, injury to operat- ing personnel, and poor equipment performance. CAUTION! All internal adjustments and maintenance must be performed by qualified service personnel.
  • Page 3 Model 700 Series -40C _________________________________________________________________________Warnings Important operating and/or maintenance instructions. Read the accompanying text carefully. Potential electrical hazards. Only qualified persons should perform procedures associated with this symbol. Hot surface(s) present which may cause burns to unprotected skin or to materials which may be damaged by elevated temperatures Extreme temperature hazards, hot or cold.
  • Page 4 Model 700 Series -40C ___________________________________________________________________________Service Do You Need Information or Assistance on Thermo Fisher Scientific Products? If you do, please contact us 8:00 a.m. to 6:00 p.m. (Eastern Time) at: 1-740-373-4763 Direct 1-888-213-1790 Toll Free, U.S. and Canada 1-740-373-4189 http://www.thermo.com/forma Internet Worldwide Web Home Page services.controlenv@thermo.com Service E-Mail Address...

  • Page 6: Table Of Contents

    Model 700 Series -40C __________________________________________________________________Table of Contents Table of Contents Section 5 - Factory Options ..... .5 - 1 Section 1 - Installation and Start-up ....1 - 1 5.1 BUS (Back Up System) .

  • Page 8: Section 1 - Installation And Start-Up

    Model 700 Series -40C ______________________________________________________________Installation and Start-Up Section 1 - Installation and Start-up Figure 1-4 Vacuum Relief and Probe Cover Location Figure 1-1 1.1 Freezer Components Model 700 Series -40C Front Wall Bumper Figure 1-1 (pre-tapped holes) • Control Panel - keypad, displays and indicators. •...

  • Page 9: Control Panel Keys, Displays And Indicators

    Model 700 Series -40C ____________________________________________________________Installation and Start-Up Figure 1-5 Battery power switch • Battery mounting bracket(s) remove filter Thermocouple • Battery power switch (freezer and BUS) receptacle • Freezer battery Battery mounting • Optional BUS battery bracket • Freezer filter location Freezer battery and optional BUS battery Figure 1-5...

  • Page 10: Operation Of The Keypad

    Model 700 Series -40C ______________________________________________________________Installation and Start-Up 1.3 Operation of the Keypad Figure 1-7 The Model 700 Series freezer has five basic modes which allow freezer setup and operation. a. Choosing the Location Press the Mode key to scroll through the mode selec- tions.

  • Page 11: Remote Alarm Contacts

    Model 700 Series -40C _____________________________________________________________Installation and Start-Up f. Connecting the Unit to Electrical Power d. Remote Alarm Contacts See Figure 1-2 for the location of the remote alarm con- tacts. The remote alarm connector is located in the parts bag See the serial tag on the side of the unit for electrical specifi- provided with the manual.

  • Page 12: Setting The Operating Temperature

    Model 700 Series -40C ____________________________________________________________Installation and Start-Up a. Setting the Operating Temperature c. Setting the Low Temperature Alarm The low temperature alarm will activate an audible/visual The Model 700 Series -40°C freezers have an operating warning when the freezer chamber temperature has reached or temperature range of -10°C to -40°C.

  • Page 14: Section 2 - Calibrate

    Model 700 Series -40C _________________________________________________________________________Calibration Section 2 - Calibrate 2.1 Calibrate Mode Once the freezer has stabilized, the control probe may need to be calibrated. Calibration frequency is dependent on use, ambient conditions and accuracy required. A good laboratory practice would require at least an annual calibration check. On new installations, all parameters should be checked after the stabilization period.

  • Page 16: Section 3 - Alarms

    Model 700 Series -40C ___________________________________________________________________________Alarms Section 3 - Alarms 3.1 Alarms The Model 700 Series -40C freezer alarms are displayed on the freezer control panel. When an alarm is active, the indicator next to the alarm description will light and there will be an audible alarm. Press the Silence key to disable the audible alarm for the ringback period.

  • Page 18: Section 4 - Maintenance

    Model 700 Series -40C _______________________________________________________________________Maintenance Section 4 - Maintenance 4.4 Defrosting the Chamber 1. Remove all product and place it in another freezer. 4.1 Cleaning the Cabinet Exterior 2. Turn the unit off and disconnect it from the power source. Avoid the excessive use of water around the con- 3.

  • Page 19: Cleaning The Door Gasket

    Model 700 Series -40C________________________________________________________________________Maintenance 4.5 Cleaning Door Gasket (minimum monthly) Using a soft cloth, remove any frost build-up from the gas- ket and door(s). The door gasket may need to be cleaned more frequently if dirt or excessive frost build-up prevents the door from closing properly.

  • Page 20: Replacing The Battery(S)

    Model 700 Series -40C _______________________________________________________________________Maintenance Battery power Vacuum Relief Port Maintenance switch Observe the inner side Thermocouple of port with each door receptacle opening for frost and ice build-up. Remove any frost Battery mounting with a soft dry cloth. If the bracket tube should become clogged with ice, it must be...

  • Page 21: Preventive Maintenance

    Model 700 Series -40C ____________________________________________________________________________________________________________Maintenance PREVENTIVE MAINTENANCE Freezers Your equipment has been thoroughly tested and calibrated before shipment. Regular preventive maintenance is important to keep your unit function- ing properly. The operator should perform routine cleaning and maintenance on a regular basis. For maximum performance and efficiency, it is rec- ommended that the unit be checked and calibrated periodically by a qualified service technician.
  • Page 22 Model 700 Series -40C ____________________________________________________________________________________________________________Maintenance Preventive Maintenance for 700 Series Freezers Refer to Manual Section Action Monthly Yearly Every 2 Years Verify ambient temperature, <90°F * Adjust door handle for firm latching, as needed Figure 1-4 for probe location Check and clean probe cover, gaskets, hinges, and vacuum relief port 4.5, 4.6 of ice and snow More frequent cleaning may be...

  • Page 24: Section 5 - Factory Options

    Model 700 Series -40C ____________________________________________________________________Factory Options a. Installing Vent Stack, Solenoid and Injection Section 5 - Factory Installed Options Assembly 5.1 BUS - Back Up System (195875, 195877) 1. Install the injection assembly through the 1/2” pre- punched hole, directly behind the 2” vent stack hole in the center of the chamber ceiling.

  • Page 25: Installing The Temperature Probe

    Model 700 Series -40C _____________________________________________________________________Factory Options b. Installing the Temperature Probe 1. Locate the 0.500” pre-punched hole in the upper left hand back corner of the chamber ceiling. Remove the tie wrap securing the coiled probe/solenoid harness. Uncoil the probe lead and run the probe tip (approximately 12”) down through 0.500”...

  • Page 26: Bus Control Panel

    Model 700 Series -40C ____________________________________________________________________Factory Options c. Setting the Optional BUS Set Point BUS Operation and Maintenance The optional back up system is designed to inject CO a. BUS Control Panel (see Figure 5-6) into the freezer compartment if the temperature rises above back up system set point.

  • Page 27: Chart Recorder

    Model 700 Series -40C ____________________________________________________________________Factory Options Figure 5-7 Recorder Details 5.2 Chart Recorder Program From 30°C a. Installing the Chart Paper 60°C -100 38°C 1. Open the glass door of the recorder and press button #3 until the pen begins to 50°C move outward.

  • Page 28: Datalogger

    Model 700 Series -40C ____________________________________________________________________Factory Options 5.3 Datalogger Dataloggers and ELPRO evaluation software provide moni- toring and documentation of temperature and alarm conditions. The dataloggers have a memory capacity of 64,000 measured values or data points. Temperature is measured, stored and dis- played.

  • Page 30: Section 6 - Specifications

    Model 700 Series -40C _____________________________________________________________________Specifications Specifications Model Temperature Range -10°C (-14°F) to -40°C (-40°F) 33.3”W x 77.8”Hx31.0” 33.3”W x 77.8”Hx31.0” 33.3”W x 77.8”Hx37.0” 33.3”W x 77.8”Hx37.0” Exterior Dimensions 84.6x197.6x78.7cm 84.6x197.6x78.7cm 84.6x197.6x94.0cm 84.6x197.6x94.0cm 23.0”Wx51.5”Hx19.3” 23.0”Wx51.5”Hx19.3” 23.0”Wx51.5”Hx25.3” 23.0”Wx51.5”Hx25.3” Interior Dimensions 58.4x130.8x49.0cm 58.4x130.8x49.0cm 58.4x130.8x64.3cm 58.4x130.8x64.3cm 13.0 cu.
  • Page 32 Model 700 Series -40C ________________________________________________________________________________Parts 7 - 1...
  • Page 33 Model 700 Series -40C ________________________________________________________________________________Parts 7 - 2...
  • Page 34 Model 700 Series -40C ________________________________________________________________________________Parts 7 - 3...
  • Page 35 Model 700 Series -40C ________________________________________________________________________________Parts 7 - 4...
  • Page 38 Model 700 Series -40C ________________________________________________________________________________Parts Part Number 230 Volt Relay Enclosure Assembly 8602-204-1-B Rev . 4 Quantity Page 1 of 2 7 - 7...
  • Page 39 Model 700 Series -40C ________________________________________________________________________________Parts 230 Volt Relay Enclosure Assembly 8602-204-1-B Rev . 4 Page 2 of 2 7 - 8...
  • Page 40 Model 700 Series -40C ________________________________________________________________________________Parts Part Number 120 Volt Relay Enclosure Assembly 8602-204-2-B Rev . 4 Quantity Page 1 of 2 7 - 9...
  • Page 41 Model 700 Series -40C ________________________________________________________________________________Parts 120 Volt Relay Enclosure Assembly 8602-204-2-B Rev . 4 Page 2 of 2 7 - 10...
  • Page 44 Model 700 Series -40C _________________________________________________________________Electrical Schematics 9 - 1...
  • Page 45 Model 700 Series -40C _________________________________________________________________Electrical Schematics 9 - 2...
  • Page 46 Model 700 Series -40C _________________________________________________________________Electrical Schematics 9 - 3...
  • Page 48 Model 700 Series -40C _________________________________________________________________Electrical Schematics 9 - 4...
  • Page 49 Model 700 Series -40C _________________________________________________________________Electrical Schematics 9 - 5...
  • Page 50 Model 700 Series -40C _________________________________________________________________Electrical Schematics 9 - 6...

  • Page 54: Appendix A - Handling Liquid Nitrogen

    Model 700 Series -40C ________________________________________________________________________Appendix A Appendix A Handling Liquid Nitrogen Contact of liquid nitrogen or cold gas with the skin or eyes may cause serious freezing (frostbite) injury. Handle liquid nitrogen carefully. The extremely low temperature can freeze human flesh very rapidly. When spilled on a surface the liquid tends to cover it com- pletely and intimately, cooling a large area.
  • Page 55 Model 700 Series -40C _______________________________________________________________________Appendix A Introduction The safe handling and use of liquid nitrogen in cryogenic refrigerators and dewar flasks is largely a matter of knowing the potential hazards and using common-sense procedures based on that knowledge. There are two important properties of liquid nitro- gen that present potential hazards: 1.

  • Page 56: Appendix B - Handling Liquid Co

    Model 700 Series -40C ________________________________________________________________________Appendix B Appendix B Handling Liquid Co High concentrations of CO gas can cause asphyxiation! OSHA Standards specify that employee exposure to carbon dioxide in any eight-hour shift of a 40-hour work week shall not exceed the eight-hour time weighted average of 5000 PPM (0.5% CO ).

  • Page 57: First Aid

    Model 700 Series -40C ________________________________________________________________________Appendix C First Aid If a person seems to become dizzy or loses consciousness while working with liquid nitrogen or carbon dioxide, move to a well- ventilated area immediately. If breathing has stopped, apply artificial respiration. If breathing is difficult, give oxygen. Call a physician.
  • Page 60 Thermo Fisher Scientific Controlled Environment Equipment 401 Millcreek Road, P.O. Box 649 Marietta, Ohio 45750 U.S.A. Telephone (740) 373-4763 Telefax (740) 373-4189...

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