INSTRUCTION MANUAL Ultra-Low Temperature Freezer MDF-U74V - 46 - MDF-U74V MDF-U74VC MDF-U54V MDF-U54VC
CONTENTS INTRODUCTION P. 2 PRECAUTIONS FOR SAFE OPERATION P. 3 ENVIRONMENTAL CONDITIONS P. 7 FREEZER COMPONENTS P. 8 Control panel P. 10 INSTALLATION SITE P. 11 INSTALLATION P. 12 START-UP OF UNIT P. 13 CHAMBER TEMPERATURE SETTING P.14 KEY LOCK FUNCTION P. 14 ALARM TEMPERATURE SETTING P. 15 SETTING OF ALARM RESUME TIME P. 16 REMOTE ALARM TERMINAL P. 17 MONITOR OF FREEZER STATUS P. 18 CHANGE OF COMPRESSOR DELAY TIME P. 19 CHANGE OF DOOR ALARM DELAY TIME P.
INTRODUCTION Ŷ Read this manual carefully before using the appliance and follow the instructions for safety operation. Ŷ Sanyo 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 manual. Ŷ Keep this manual in an adequate place to refer to it as necessary. Ŷ The contents of the manual will be subjected to change without notice due to the improvement of performance or functions.
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. Precautions are illustrated in the following way: WARNING Failure to observe WARNING signs could result in a hazard to personnel possibly resulting in serious injury or death.
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. unqualified personnel may cause electric shock or fire. The installation by Install the unit on a sturdy floor and take an adequate precaution to prevent the unit from turning over.
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. Never bind, process, or step on the power supply cord, or never damage or break the power supply plug.
PRECAUTIONS FOR SAFE OPERATION CAUTION Use a dedicated power source (a dedicated circuit with a breaker) as indicated on the rating label attached to the unit. A branched circuit may cause fire resulting from abnormal heating. Connect the power supply plug to the power source firmly after removing the dust on the plug. A dusty plug or improper insertion may cause a heat or ignition. Never store corrosive substances such as acid or alkali in this unit if the container cannot be sealed.
ENVIRONMENTAL CONDITIONS This equipment is designed to be safe at least under the following conditions (based on the IEC 61010-1): Ŷ Indoor use; Ŷ Altitude up to 2000 m; Ŷ Ambient temperature 5oC to 40oC Ŷ Maximum relative humidity 80% for temperature up to 31oC decreasing linearly to 50% relative humidity at 40oC; Ŷ Mains supply voltage fluctuations not to exceed 㫧10% of the nominal voltage; Ŷ Other supply voltage fluctuations as stated by the manufacturer; Ŷ Transient overvoltages according to Installatio
FREEZER COMPONENTS 7 1 2 3 4 5 6 7 (inside) 8 14 9 10 13 15 12 11(inside) 16 17 Power cord Rear side - 54 - 8
FREEZER COMPONENTS 1. Control panel (on the upper front of the 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. Inner door: The operation of the inner door should be quick to minimize the temperature rise in chamber. Lock the inner door latch completely when the door is closed. The door is removable for cleaning or defrosting.
FREEZER COMPONENTS Control panel 1 ULTRA LOW 2 TEMPERATURE(oC) BUZZER ALARM TEST STATUS SET 12 11 10 9 1. Digital temperature indicator: temperature. 3 4 5 6 BATTERY FILTER STATUS ALARM DOOR 8 7 This indicator shows the present chamber temperature or set 2. Status monitor lamp (STATUS): This lamp lights when environmental condition or status gets worse or the unit is out of normal operation. 3. Battery check lamp (BATTERY): This lamp lights to recommend the battery replacement.
INSTALLATION SITE To operate this unit properly and to obtain maximum performance, install the unit in a location with the following conditions: Ŷ 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. Ŷ A location with adequate ventilation Leave at least 10 cm around the unit for ventilation.
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. Then wipe off the panels with a dry cloth. 2.
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. 3. Turn on the battery switch. 4. Set the desired chamber temperature. See page 14 for the temperature setting. 5.
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 -75oC. Note: The unit is set at the factory that the chamber temperature -80oC. Table 1. Basic operation sequence (Example: Chamber temperature -75oC) Description of operation 1 Turn the power switch ON. 2 Press set key.
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.
SETTING OF ALARM RESUME TIME The alarm buzzer is silenced by pressing buzzer stop key (BUZZER) on the control panel during alarm condition (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 5 below. The example in the table is based on the assumption that the desired duration is 20 minutes. Note: The duration is set in 30 minutes at the factory.
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. and N.C. At normal Open Close At abnormal Close Open Note: The alarm is actuated when the power cord is disconnected from the outlet or the power switch is OFF. REMOTE ALARM N.C. COM N.O.
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. The S code (--X, X: 1 to 3) is displayed on the temperature indicator by pressing STATUS key when the STATUS lamp is lit. 3. Pressing the STATUS key again returns to current chamber temperature on the temperature indicator.
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: • The delay time should be the same for high stage side and low stage side compressors.
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. (The delay time is set in 2 minutes at the factory.) Table 8.
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 High temperature alarm Low temperature alarm Power failure alarm Situation If the chamber temperature is higher than the temperature at which the high temperature alarm is activated. If the chamber temperature is lower than the temperature at which the low temperature alarm is activated. When the power to the unit is disconnected.
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. These may be harmful to your health. Cleaning of cabinet 㩵 Clean the unit once a month. Regular cleaning keeps the unit looking new.
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. Following shows the procedure for removing the chamber frost. Note: For removing the frost, do not use a tool with sharp edge such as a knife or a screw driver. 1. Turn off the back-up system if applicable. 2.
TROUBLE SHOOTING If the unit malfunctions, check out the following before calling for service. Malfunction The chamber is not cooled at all Check/Remedy 㩵 The circuit breaker of power source is active. 㩵 The voltage is too low (In this case, call an electrician). 㩵 The power is not supplied. 㩵 The breaker is free. 㩵 The large amount of articles (load) is stored in the chamber at one The cooling is poor time. 㩵 The ambient temperature is too high. 㩵 The latch of inner door is not closed completely.
REPLACEMENT 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. Removal of nickel-metal-hydride battery 1.
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. Recycle of 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.
DISPOSAL OF UNIT (English) FOR EU USERS 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. The symbol mark means that electrical and electronic equipment, batteries and accumulators, at their end-of-life, should be disposed of separately from your household waste.
DISPOSAL OF UNIT (French) 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. Le symbole signifie que les équipements électriques et électroniques, les batteries et les accumulateurs ne doivent pas être mis au rebut avec les déchets domestiques à l'issue de leur durée de vie.
DISPOSAL OF UNIT (Portuguese) PARA UTILIZADORES DA UE 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 SANYO foi concebido e fabricado com materiais e componentes de elevada qualidade que podem ser reciclados e/ou reutilizados. O símbolo significa que o equipamento eléctrico e electrónico, baterias e acumuladores, em final de vida, não devem ser deitados fora juntamente com o lixo doméstico.
DISPOSAL OF UNIT (Dutch) VOOR GEBRUIKERS IN DE EU 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.
TEMPERATURE RECORDER (OPTION) An automatic temperature recorders is available for this freezer as the optional component. The type of the recorder is MTR-G85. Following shows the attachment procedure. 1. Remove four screws on the front panel and take it off. Then take off the cover for the recorder mounting space by removing four screws. (Fig. 1) Front panel Fig. 1 2. As shown in the Fig.
BACK-UP SYSTEM (OPTION) WARNING As with any equipment that uses CO2 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. If restricted ventilation is suspected, then other methods of ensuring a safe environment must be considered. These may include atmosphere monitoring and warning devices.
INDEPENDENT INNER DOOR (OPTION) There is an independent inner door (MDF-7ID or MDF-5ID) of the shelf width of the chamber in this product by the option. The user divided into every shelf of the chamber is to change a standard independent inner door to MDF-7ID (for MDF-U74V) or MDF-5ID (for MDF-U54V). Refer to an attached installation manual for the installation of MDF-7ID/MDF-5ID in the independent inner door.
MOUNTING OF INTERFACE BOARD (OPTION) By installing an interface board (MTR-480), the log data can be transmitted to a PC. The mounting procedure is as follows: 1. Remove 4 screws of the communication box hole cover in the control panel. (Fig. 1) 2. Provide an interface board (MTR-480) code from the fitting hole. (Fig. 2) 3. Refer to the instruction manual attached to the interface board for the setup of the TERMINATOR switch of the interface board (MTR-480). (Fig. 3) 4.
MOUNTING OF LAN INTERFACE BOARD (OPTION) By installing an LAN interface board (MTR-L03), the log data can be transmitted to a PC. The mounting procedure is as follows: 1. Remove 4 screws of the communication box hole cover in the control panel. (Fig. 1) 2. Provide an LAN interface board (MTR-L03) code from the fitting hole. (Fig. 2) 3. Connect to the connector side (the back side of the LAN interface board) of a connector cable to use for the LAN interface board (MTR-L03). (Fig.
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 IR-224U NOTE㧦 Only inventory rack IR-220U can be applied when the independent inner door (MDF-7ID or MDF-5ID) is installed. Shelf support Shelf stopper No.
SPECIFICATIONS Name Ultra-Low Temperature Freezer Model MDF-U74V MDF-U74VC (For U.S.A.
SPECIFICATIONS Name Ultra-Low Temperature Freezer Model MDF-U54V MDF-U54VC (For U.S.A.
PERFORMANCE Model Cooling performance MDF-U74V, MDF-U74VC o -86 C at the center of the chamber (ambient temperature; 30oC, no load)* -50oC to -86oC (ambient temperature; 30oC, no load) Temperature control range Power source Rated power consumption 220 V, 50 Hz 220 V, 60 Hz 230 V, 50 Hz 240 V, 50 Hz 1050 W 1230 W 1120 W 1170 W Noise level 51 dB [A] (background noise; 20 dB) Maximum pressure 2680 kPa Model Cooling performance MDF-U54V, MDF-U54VC -86oC at the center of the chamber (ambient t
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 : Risk of infection: Risk of toxicity: Risk from radioactive sources: غYes غNo غYes غYes غYes غNo غNo غNo (List all potentially hazardous materials that have been stored in this unit.) Notes : 2.
SANYO Electric Co.
