Operating Instructions Ultra-Low Temperature Freezer MDF-U74V MDF-U55V MDF-U74V MDF-U55V MDF-U55V Please read these instructions carefully before using this product, and save this operating instructions for future use. See page 42 for all Model Numbers.
CONTENTS INTRODUCTION P. 2 PRECAUTIONS FOR SAFE OPERATION P. 3 LABELS ON THE UNIT P. 7 SYMBOLS ON THE UNIT P. 7 ENVIRONMENTAL CONDITIONS P. 8 INTENDED USE AND PRECAUTIONS P. 8 FREEZER COMPONENTS P. 9 Control panel P.11 INSTALLATION SITE P.12 INSTALLATION P.13...
INTRODUCTION Read this operating instructions carefully before using the appliance and follow the instructions for safety operation. Our company never guarantee any safety if the appliance is used for any objects other than intended use or used by any procedures other than those mentioned in this operating instructions. Keep this operating instructions in an adequate place to refer to it as necessary.
PRECAUTIONS FOR SAFE OPERATION It is imperative that the user complies with this operating instructions 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.
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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. Install the unit on a sturdy floor and take an adequate precaution to prevent the unit from turning over.
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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.
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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.
LABELS ON THE UNIT Warning safety labels applied to the ultra-low temperature freezer Users are advised to avoid accidents by carefully reading the warnings and cautions contained on warning labels at key locations on the interior and exterior of the ultra-low temperature freezer. Possible Warning/Caution Type Warning/Caution Label...
ENVIRONMENTAL CONDITIONS This equipment is designed to be safe at least under the following conditions (based on the IEC61010-1): 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 Mains supply voltage fluctuations up to ±10% of the nominal voltage;...
FREEZER COMPONENTS 7 (inside) 11(inside) Power cord Rear side...
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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 11 for details. 2. Outer door: To open the door, grip the handle. On closing, lock the outer door latch completely. 3.
FREEZER COMPONENTS Control panel TEMPERATURE( BATTERY FILTER STATUS ALARM DOOR ALARM BUZZER STATUS TEST 1. Digital temperature indicator: This indicator shows the present chamber temperature or set temperature. 2. Status monitor lamp (STATUS): This lamp lights when environmental condition or status gets worse or the unit is out of normal operation.
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.
INSTALLATION 1. Removing 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.
START-UP OF UNIT Follow the procedures for the initial and consequent operations of the unit. 1. Turn off the switch of the backup cooling kit (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.
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.
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...
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.
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.
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.
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: •...
CHANGE OF DOOR ALARM DELAY TIME The buzzer of door alarm is activated with 2 minutes delay when the 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.
ALARMS & SAFETY FUNCTIONS This unit has the alarms and safety functions shown in Table 9, and also self diagnostic functions. Table 9. Alarms and safety functions Alarm & Safety Situation Indication Buzzer Safety operation If the chamber temperature is higher High temperature than the temperature at which the alarm...
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.
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 door gasket, which may cause poor cooling. Remove the frost on the inner door with a scraper enclosed with the unit.
TROUBLE SHOOTING If the unit malfunctions, check out the following before calling for service. Malfunction Check/Remedy The circuit breaker of power source is active. The chamber is not cooled The voltage is too low (In this case, call an electrician). at all The power is not supplied.
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.
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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 Panasonic product is designed and manufactured with high quality materials and components which can be recycled and/or reused.
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POUR LES UTILISATEURS DE UE Le symbole et les systèmes de recyclage évoqués ci-dessous s'appliquent uniquement aux pays de UE. Votre produit Panasonic est conçu et fabriqué avec des composants et des matériaux de hautes qualités qui peuvent être recyclés et/ou réutilisés.
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O símbolo e os sistemas de reciclagem descritos abaixo aplicam-se aos países da UE e não se aplicam aos países noutras áreas do mundo. O seu produto Panasonic foi concebido e fabricado com materiais e componentes de elevada qualidade que podem ser reciclados e/ou reutilizados.
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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 Panasonic product is ontworpen en gemaakt met materialen en onderdelen van hoge kwaliteit, die gerecycleerd en opnieuw gebruikt kunnen worden.
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.
TEMPERATURE RECORDER (OPTION) WARNING Always disconnect the power supply to the unit prior to attachment of a temperature recorder in order to prevent electric shock or injury. A temperature recorder is available for the freezer as an optional component. The type of the temperature recorder is MTR-G85C and MTR-85H.
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TEMPERATURE RECORDER (OPTION) <Replacement of dry cell> Note : This temperature recorder is designed for the manganese dry cell and the alkaline dry cell. Do not use a rechargeable battery because the initial voltage of such battery is low. The rechargeable battery may cause the malfunction of recorder or shorten the Fig.
TEMPERATURE RECORDER (OPTION) Setting of MTR-G85C Chart guides Pen arm Back-up battery Chart hub cover Pen lifter Recording chart Ink pen Chart speed selector Key lock Latch Pilot lamp Fast feed button Power switch Zero adjustment screw Loading the ink pen: 1.
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TEMPERATURE RECORDER (OPTION) Starting recording and setting the time: Turn the power switch ON. The pen will move inward on the circular recording paper and stop temporarily at the 0% position (equivalent to the 40 C line). Then the pen will Ink pen move to the position which indicates the measured Hour...
TEMPERATURE RECORDER (OPTION) Installation of MTR-G85C and MTR-85H A temperature recorders is available for the freezer as the optional component. The type of the temperature recorder is MTR-85H or MTR-G85C. For the attachment, optional component is necessary as follows. Temperature recorder Recorder fixing MTR-85H MDF-S3085...
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BACKUP COOLING KIT (OPTION) WARNING As with any equipment that uses CO or N gas, there is a likelihood of oxygen depletion in the vicinity of the equipment. It is important that you assess the work site to endure there is suitable and sufficient ventilation.
There is an option of the small inner door (MDF-7ID or MDF-5ID) in this product. A chamber can be divided when the small inner door to MDF-7ID (for MDF-U74V) or MDF-5ID (for MDF-U55V). Refer to an attached installation manual for the installation of MDF-7ID/MDF-5ID.
IR-224U NOTE: Only inventory rack IR-220U can be applied when the independent inner door (MDF-7ID or MDF-5ID) is installed. <MDF-U74V> Shelf support Shelf stopper No. 4 under second screw from the top (There is a mark which hollowed at the shelf support front side.) No.
SPECIFICATIONS Product name Ultra-Low Temperature Freezer MDF-U74V Medical purpose Storage of cells, organs, DNA, plasma. External dimensions W1010 mm x D870 mm x H2010 mm Internal dimensions W870 mm x D600 mm x H1400 mm Effective capacity 728 L Exterior...
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SPECIFICATIONS Product name Ultra-Low Temperature Freezer MDF-U55V Medical purpose Storage of cells, organs, DNAs, plasma. External dimensions W770 mm x D870 mm x H1990 mm Internal dimensions W630 mm x D600 mm x H1380 mm Effective capacity 519 L Exterior Painted steel Interior Painted steel...
PERFORMANCE Product name Ultra-Low Temperature Freezer MDF-U74V Model number MDF-U74V-PE 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...
CAUTION Please fill in this form before servicing. Hand over this form to the service engineer to keep for his and your safety. Safety check sheet 1. Freezer contents : □Yes □No Risk of infection: □Yes □No Risk of toxicity: □Yes □No Risk from radioactive sources:...