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Sanyo MDF-U76V Instruction Manual

Ultra-low temperature freezer
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INSTRUCTION MANUAL
MDF-U76V
Ultra-Low Temperature Freezer

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Summary of Contents for Sanyo MDF-U76V

  • Page 1 INSTRUCTION MANUAL MDF-U76V Ultra-Low Temperature Freezer...

  • Page 2: Table Of Contents

    CONTENTS INTRODUCTION P. 2 PRECAUTIONS FOR SAFE OPERATION P. 3 ENVIRONMENTAL CONDITIONS P. 7 FREEZER COMPONENTS P. 8 Control panel P.10 REMOTE ALARM TERMINAL P. 11 AIR INTAKE PORT P. 11 INSTALLATION SITE P. 12 INSTALLATION P. 13 START-UP OF UNIT P.

  • Page 3: Introduction

    ■ Contact SANYO sales representative or agent if any page of the manual is lost or page order is incorrect. ■ Contact SANYO sales representative or agent if any point in this manual is unclear or if there are any inaccuracies.

  • Page 4: 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 5 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. The installation by Only qualified engineers or service personnel should install the unit. unqualified personnel may cause electric shock or fire. Install the unit on a sturdy floor and take an adequate precaution to prevent the unit from turning over.
  • Page 6 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. Never splash water directly onto the unit as this may cause electric shock or short circuit. Never put containers with liquid on the unit as this may cause electric shock or short circuit when the liquid is spilled.
  • Page 7 PRECAUTIONS FOR SAFE OPERATION CAUTION This unit must be plug into a dedicated circuit protected by branch circuit breaker. Use a dedicated power source as indicated on the rating label attached to the unit. A multiple-tap may cause fire resulting from abnormal heating. Connect the power supply plug to the power source firmly after removing the dust on the plug.

  • Page 8: Environmental Conditions

    ENVIRONMENTAL CONDITIONS This equipment is designed to be safe at least under the following conditions (based on the IEC 61010-1): ■ Indoor use; ■ Altitude up to 2000 m; ■ Ambient temperature 5 C to 40 ■ Maximum relative humidity 80% for temperature up to 31 C decreasing linearly to 50% relative humidity at 40 ■...

  • Page 9: Freezer Components

    FREEZER COMPONENTS 11(inside) Power cord Rear side...
  • Page 10 FREEZER COMPONENTS 1. Control panel (on the upper front of the outer door): Used for temperature setting and indication of operating status is displayed on the panel. See page 10 for details. 2. Outer door: To open the door, grip the handle. On closing, lock the outer door latch completely. 3.

  • Page 11: Control Panel

    3. Battery check lamp (BATTERY): This lamp lights to recommend the battery replacement. This lamp blink to recommend the fan motor replacement. For the replacement, consult SANYO sales representative or agent. 4. Door check lamp (DOOR): This lamp lights when the outer door is open.

  • Page 12: Remote Alarm Terminal

    REMOTE ALARM TERMINAL The terminal of the remote alarm is installed at the lower left side of the unit. The alarm is outputted from this terminal. Contact capacity is DC 30 V, 2 A. Contact output: between COM. and N.O. between COM.

  • Page 13: Installation Site

    INSTALLATION SITE 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 Do not install the unit under direct sunlight. Installation in a location subjected to direct sunlight cannot obtain the intended performance.

  • Page 14: Installation

    5. Installing the earth leakage breakers This product is to connect a earth leakage breaker to the power supply side of the product. Contact SANYO sales representative or agent at the time of installation of the earth leakage breaker.

  • Page 15: Start-Up Of Unit

    START-UP OF UNIT Follow the procedures for the initial and consequent operations of the unit. 1. Turn off the switch of the back-up system (optional component) if it is installed. 2. Connect the power supply cord to the dedicated outlet having appropriate rating with the chamber empty, and turn on the power switch on the freezer.

  • Page 16: Chamber Temperature Setting

    CHAMBER TEMPERATURE SETTING Table 1 shows the basic procedure for setting the chamber temperature. Perform key operations in the sequence indicated in the table. The example in the table is based on the assumption that the desired temperature is -75 Note: The unit is set at the factory that the chamber temperature -80 Table 1.

  • Page 17: Alarm Temperature Setting

    ALARM TEMPERATURE SETTING This unit is provided with the high and low temperature alarm and the temperature at which the alarm is activated is changeable. The following procedure shows the setting of alarm temperature according to the condition below: High temperature alarm: activates at the temperature 5 C higher than the set temperature Low temperature alarm: activates at the temperature 5 C lower than the set temperature...

  • Page 18: Setting Of Alarm Resume Time

    SETTING OF ALARM RESUME TIME The alarm buzzer is silenced by pressing alarm buzzer stop key (BUZZER) on the control panel during alarm condition. (A remote alarm is continuing the operation.). 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 5 below.

  • Page 19: Monitor Of Freezer Status

    MONITOR OF FREEZER STATUS The freezer has a function to monitor the running status of the unit as shown in table 6 below. This is to notice the running status getting worse (not failure). 1. The status monitor lamp is lit when one of the running status shown in table 6 is detected. 2.

  • Page 20: Change Of Compressor Delay Time

    CHANGE OF COMPRESSOR DELAY TIME The delay time of high and low stage side compressor can be changed to reduce the load on the power line and to facilitate the start-up (reset) of the freezer after power failure. The example in the table 7 is based on the assumption that the delay time is changed to 4 minutes. (The delay time is set in 3 minutes at the factory.) Note: •...

  • Page 21: Change Of Door Alarm Delay Time

    CHANGE OF DOOR ALARM DELAY TIME The buzzer of door alarm is activated with 2 minutes delay when the outer door is open. The delay time is changeable. Follow the procedure in table 8 below to change the setting of delay time. The procedure assumes that the delay time is changed from 2 minutes to 3 minutes.

  • Page 22: Alarms & Safety Functions

    • The battery for power failure alarm is an article for consumption. It is recommended that the battery will be replaced about every three years. Contact SANYO sales representative or agent at the time of replacement of the battery.

  • Page 23: Routine Maintenance

    ROUTINE MAINTENANCE WARNING Always disconnect the power supply to the unit prior to any repair or maintenance of the unit in order to prevent electric shock or injury. Ensure you do not inhale or consume medication or aerosols from around the unit at the time of maintenance.

  • Page 24: Defrosting Of Inside Wall

    ROUTINE MAINTENANCE Defrosting of inside wall The frost is built at the upper portion of the chamber and inner door. The excessive frost possibly make some gap between the cabinet and magnetic door gasket, which may cause poor cooling. Remove the frost on the inner door with a scraper enclosed with the unit.

  • Page 25: Cleaning Of Air Intake Port

    ROUTINE MAINTENANCE Cleaning of air intake port The cap of the left side is turned counterclockwise, and this product is removed, and the outer air is adopted into the chamber, and it opens a outer door. Therefore, frost is easy to be settled around the air intake port inside the chamber.

  • Page 26: Troubleshooting

    Note: If the malfunction is not eliminated after checking the above items, or the malfunction is not shown in the above table, contact SANYO sales representative or agent.

  • Page 27: 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 that doors are locked completely with a key. The disposal of the unit should be accomplished by appropriate personnel. Always remove doors to prevent accidents such as suffocation.
  • Page 28 The symbol mark and recycling systems described below apply to EU countries and do not apply to countries in other areas of the world. Your SANYO product is designed and manufactured with high quality materials and components which can be recycled and/or reused.
  • Page 29 POUR LES UTILISATEURS DE UE Le symbole et les systèmes de recyclage évoqués ci-dessous s'appliquent uniquement aux pays de UE. Votre produit SANYO est conçu et fabriqué avec des composants et des matériaux de hautes qualités qui peuvent être recyclés et/ou réutilisés.
  • Page 30 PER UTENTI UE Il simbolo e i sistemi di riciclaggio descritti di seguito si applicano esclusivamente ai paesi dell’UE. Questo prodotto SANYO è stato progettato e realizzato con materiali e componenti di elevata qualità che possono essere riciclati e/o riutilizzati.
  • Page 31 Het symbool en de recycleersystemen die hieronder beschreven worden, zijn van toepassing op de landen in de EU en zijn niet van toepassing op landen in andere delen van de wereld. Uw SANYO product is ontworpen en gemaakt met materialen en onderdelen van hoge kwaliteit, die gerecycleerd en opnieuw gebruikt kunnen worden.

  • Page 32: Disposal Of Battery

    DISPOSAL OF BATTERY Location of a nickel-metal-hydride battery This unit is provided a nickel-metal-hydride battery for the power failure warning device. The battery is located in the electrical box inside the cover on the lower left side. (Fig. 1) The high voltage components are enclosed in the electrical box. The cover should be removed by a qualified engineer or a service personnel only to prevent the electric shock.

  • Page 33: Temperature Recorder (Option)

    A temperature recorder is available for the freezer as an optional component. The type of the temperature recorder is MTR-G85. Contact SANYO sales representative or agent for the installation of a temperature recorder. Setting of MTR-G85...
  • Page 34 TEMPERATURE RECORDER (OPTION) Starting recording and setting the time: Turn the power switch ON. The pen will move inward on the circular recording chart and stop temporarily at the 0% position (equivalent to the 40 C line). Then the pen will move to the position which indicates the measured Hour temperature.

  • Page 35: Installation Of Mtr-G85

    A temperature recorders is available for the freezer as the optional component. The type of the recorder is MTR-G85. Contact SANYO sales representative or agent for the installation of a temperature recorder. BACK-UP SYSTEM (OPTION) Chamber temperature is the time when -70 C can be holding for Liquid CO back-up system.
  • Page 36 This freezer can be provided with a back-up system (CVK-UB2 / CVK-UBN2) which is available as an optional component. For the installation, refer to the instruction manual enclosed with the system. Contact SANYO sales representative or agent for the installation of a temperature recorder. 1. Switch of back-up system (BACKUP) When turning on the system, the back-up standby lamp is brightened.

  • Page 37: Independent Inner Door (Option)

    Optional inventory rack IR-224U cannot be used when an independent inner door is installed. INTERFACE BOARD (OPTION) Installation of MTR-480/MTR-L03 Contact SANYO sales representative or agent for the attachment of a interface board. : Note: ＊ When a data transmitting function to the personal computer is done, an interface board MTR-480 (option goods) and communication cable of 9 pin Dsub cross type for RS232C are necessary.

  • Page 38: Inventory Rack (Option)

    INVENTORY RACK (OPTION) The optional inventory racks (IR-220U, IR-224U) are useful to store the precious materials in the chamber effectively. When the racks are used, it is necessary to adjust the height of the shelves. Set the shelf support as shown in the figure below. IR-220U NOTE：...

  • Page 39: Specifications

    SPECIFICATIONS   Name  Ultra-Low Temperature Freezer  Model  MDF-U76V External dimensions  W1010 x D870 x H1990 (mm) Internal dimensions  W870 x D600 x H1400 (mm) Effective capacity  728 L Exterior  Painted steel  Interior  Painted steel  Outer door  Painted steel  Inner door...

  • Page 40: Performance

    PERFORMANCE   Model MDF-U76V Cooling performance C at the center of the chamber (ambient temperature; 30 C, no load)* Temperature control range C to -86 C (ambient temperature; 30 C, no load) Power source 230/240 V, 50 Hz Rated power consumption...

  • Page 41: Safety Check Sheet

    Procedure to be adhered to in order to reduce safety risk indicated in b) below. Date : Signature : Address, Division : Telephone : Product name: Model: Serial number: Date of installation: MDF-U76V Ultra-low temperature reezer Please decontaminate the unit yourself before calling the service engineer.
  • Page 42 7FB6P10162400 5-5, Keihan-Hondori 2-Chome (1 September 2011) Moriguchi City, Osaka 570-8677 Japan Printed in Mexico...

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