Sanyo MDF-593C Instruction Manual
Sanyo MDF-593C Instruction Manual

Sanyo MDF-593C Instruction Manual

Ultra low temperature freezer
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INSTRUCTION MANUAL
MDF-593C
MDF-793C
Ultra Low Temperature Freezer
MDF-593C

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Table of Contents
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Summary of Contents for Sanyo MDF-593C

  • Page 1 INSTRUCTION MANUAL MDF-593C MDF-793C Ultra Low Temperature Freezer MDF-593C...
  • Page 2: Table Of Contents

    1. No part of this manual may be reproduced in any form without the expressed written permission of SANYO. 2. The contents of this manual are subject to change without notice. 3. Please contact SANYO if any point in this manual is unclear or if there are any inaccuracies. SANYO Electric Biomedical Co., Ltd.
  • Page 3: Precautions For Safe Operation

    PRECAUTIONS FOR SAFE OPERATION It is imperative that the user complies with this manual as it contains important safety advice. Items and procedures are described so that you can use this unit correctly and safely. If the precautions advised are followed, this will prevent possible injury to the user and any other person.
  • Page 4 PRECAUTIONS FOR SAFE OPERATION WARNING Do not use the unit outdoors. Current leakage or electric shock may result if the unit is exposed to rain water. Only qualified engineers or service personnel should install the unit. The installation by unqualified personnel may cause electric shock or fire. Be sure to install the unit on a sturdy floor.
  • Page 5 PRECAUTIONS FOR SAFE OPERATION WARNING Ensure you do not inhale or consume medication or aerosols from around the unit at the time of maintenance. These may be harmful to your health. As with any equipment that uses CO gas, there is a likelihood of oxygen depletion in the vicinity of the equipment.
  • Page 6 Do not put glass bottles or cans into the compartment since they may be broken by frozen contents and cause injury. Put on dry gloves when you take out refrigerated articles from the freezer. Handing frozen contents or the inside walls with naked hands may cause frostbite.
  • Page 7 PRECAUTIONS FOR SAFE OPERATION CAUTION Do not touch the condenser directly when the filter is removed for cleaning. This may cause injury by hot surface. Always disconnect the power supply plug before moving the unit. Take care not to damage the power cord.
  • Page 8: Cautions For Usage

    ■ The cooling pipe is routed in the rear of the freezer. Never use a knife or a screw driver, etc. to remove the frost. They may cause damage of chamber wall or improper operation of the unit. And do not make any holes for attaching accessories on the freezer wall.
  • Page 9 , consult your dealer of a neighboring engineering shop of high pressure gas. ■ Leave the remote alarm switch “OFF” until the inside temperature of the freezer reaches the appropriate level. Leave the back-up system switch “OFF” as well.
  • Page 10: Environmental Conditions

    ENVIRONMENTAL CONDITIONS This equipment is designed to be safe at least under the following conditions (based on the IEC 1010-1): 1. Indoor use; 2. Altitude up to 2000 m; 3. Ambient temperature 5 C to 40 4. Maximum relative humidity 80% for temperature up to 31 C decreasing linearly to 50% relative humidity at 40 5.
  • Page 11: Freezer Components

    FREEZER COMPONENTS MDF-593C...
  • Page 12 FREEZER COMPONENTS 1. Lock 2. Door: Hinged type. The door can be opened in any angle on the way to full open. 3. Magnetic door gasket: Seals the door and prevents leakage of cold air. 4. Inner lid: Serves as a means of reducing cold air leakage when the door is open. Remove the frost before it is accumulated too much.
  • Page 13: Control Panel

    1. Power switch (POWER): Power all functions except remote alarm and back-up system for AT type. 2. CO Back-up switch (CO MDF-593C is not equipped. MDF-793C is not equipped. 3. CO Back-up test switch (TEST): MDF-593C is not equipped. MDF-793C is not equipped.
  • Page 14: Installation

    To operate this unit properly and to obtain maximum performance, install the unit in a location with the following conditions: ■ A location not subjected to direct sunlight The direct sunlight to the freezer causes too high temperature and the chamber temperature may not reach -85 ■ A location with adequate ventilation Leave at least 10 cm around the unit for ventilation.
  • Page 15 INSTALLATION Installation 1. Remove the packaging materials and tapes Remove all transportation packaging materials and tapes. Open the doors and ventilate the unit. If the outside panels are dirty, clean them with a diluted neutral dishwashing detergent. (Undiluted detergent can damage the plastic components. For the dilution, refer to the instruction of the detergent.) After the cleaning with the diluted detergent, always wipe it off with a wet cloth.
  • Page 16: Start-Up Of Unit

    10. Now you can put articles into the freezer chamber. Switch off the remote alarm switch and the back-up system switch temporarily when putting in a lot of warm articles. Switch on these switches again after a certain period of operation.
  • Page 17: Operating Instructions

    OPERATING INSTRUCTIONS Temperature setting Table 1 shows the basic operation method. Perform key operations in the sequence indicated in the table. The example in the table is based on the assumption that the temperature is -70 Note: The unit is set at the factory that the chamber temperature is -85C. Table 1.
  • Page 18: Alarm Temperature Setting

    OPERATING INSTRUCTIONS Alarm temperature setting This unit is provided with the high temperature alarm. The setting of high temperature alarm is 10 C higher than the setting of chamber temperature. The procedure in table 2 shows the sequence to set the high temperature alarm at 15 000 at step 5 when setting the high temperature alarm at 10 temperature.
  • Page 19: Setting Of Alarm Resume Time

    OPERATING INSTRUCTIONS Setting of alarm resume time The alarm buzzer is silenced by pressing BUZZER key on the control panel during alarm condition (Initial setting 100: The remote alarm is not silenced). The buzzer will be activated again after certain suspension if the alarm condition is continued. The suspension time can be set by following the procedure shown in the Table 3 below.
  • Page 20 Operation after power failure The set value (setting of chamber temperature and alarm temperature) is memorized by nonvolatile memory. Accordingly, the freezer resumes the operation with setting before power failure. Indication C (or 15 C) higher Alarm lamp blinks.
  • Page 21 • The liquid CO gas cylinder should be a siphon type. • Use the pipe encloses with the freezer for the setting. (The extension of the pipe is not permitted because of cooling capacity.) gas, there is a likelihood of oxygen depletion in the vicinity gas injection device as a back-up system.
  • Page 22: Temperature Recorder

    TEMPERATURE RECORDER The figure below shows the description of a temperature recorder. Warning indicator Door Feeding of chart 1. Open the door and let down the lever of the penholder; the pen point is apart from the chart. (Fig. 1) 2.
  • Page 23 Note: ■ Turn off the back-up switch when the freezer operation is stopped or the back-up system is not used. The battery for back-up system is discharged when the back-up switch is kept on. ■ The additional felt pen or recording paper is available from Sanyo sales agency.
  • Page 24 When a 7day circular type recorder is installed, a slip chart recorder can not be attached. Follow the procedure bellow to attach a 7day circular chart recorder to the freezer. NOTE: Only a specified recorder is applicable to the freezer. For the selection of an applicable recorder, please consult with a sales shop 1.
  • Page 25 TEMPERATURE RECORDER 8. Remove the sensor cover at the rear of the chamber wall. (Fig. 9. Pass through the hole under the temperature control sensor. (Fig. Tool for the hole: Screw driver 135mm (5.3inch) Hole diameter: 13mm (0.5inch) 10. Route the recorder sensor into the chamber by sassing the hole. (Fig.
  • Page 26: Routine Maintenance

    , or dry ice. Switch off the alarm and back-up system of AT type. Switch off the power supply. 2. Open the door and remove the inner lid. Leave the freezer as it is. The water remaining in the freezer compartment should be wiped up.
  • Page 27: Troubleshooting

    Alarm test key cannot actuate the alarm function ■ The alarm test key does not function when the power switch of the freezer is OFF. ■ When only the buzzer or only the alarm is actuated by the alarm test key, the unactuated part is out of order, and must be replaced.
  • Page 28: Disposal Of Unit

    DISPOSAL OF UNIT WARNING If the unit is to be stored unused in an unsupervised area for an extended period ensure that children do not have access and doors cannot be closed completely. The disposal of the unit should be accomplished by appropriate personnel. Always remove doors to prevent accidents such as suffocation.
  • Page 29: Recycle Of Nickel-Cadmium Battery

    RECYCLE OF NICKEL-CADMIUM BATTERY The unit contains a rechargeable battery. The battery is recyclable. At the end of it’s useful life, check with you local solid officials option or proper disposal. 廢電池 *Label indication is obliged to comply with Taiwanese battery regulation. 請回收...
  • Page 30: Specifications

    Note: Design or specifications will be subject to change without notice. The battery for power failure alarm is an article for consumption. It is recommended that the battery will be replaced about every 3 years. Contact Sanyo sales agency at the time of replacement of the battery for recycling.
  • Page 31: Safety Check Sheet

    Please fill in this form before servicing. Hand over this form to the service engineer to keep for his and your safety. 1. Refrigerator contents : Risk of infection: Risk of toxicity: Risk from radioactive sources: (List all potentially hazardous materials that have been stored in this unit.) Notes : 2.
  • Page 32 7FB6P10140700 (22 Feb. 2005) Recycled paper SANYO Electric Biomedical Co., Ltd. 10-15, Hongo 3-Chome Bunkyoku, Tokyo 113-8434 Japan Printed in Japan...

This manual is also suitable for:

Mdf-793c

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