INSTRUCTION MANUAL MDF-594C MDF-793C Ultra-Low Temperature Freezer MDF-594C 27
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 REMOTE ALARM TERMINAL P. 14 ALARM TEMPERATURE SETTING P. 15 SETTING OF ALARM RESUME TIME P. 16 ALARMS & SAFETY FUNCTIONS P. 16 ROUTINE MAINTENANCE Cleaning of cabinet P. 18 Cleaning of condenser filter P. 18 Defrosting of inside wall 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-1010-1): 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 Installation
FREEZER COMPONENTS 1 2 13 14 3 4 8 5 12 10 11 9 6 15 7 16 MDF-594C 35 8
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. 5. Access port: Serves a means of leading the measuring cable from the freezing room to the outside. 6. Caster: 4 casters are provided. They make the moving of the unit easier. 7.
FREEZER COMPONENTS Control panel 8 10 9 7 3 4 1 5 6 2 1. Power switch (POWER): Power all functions except remote alarm and back-up system (Option). 2. Battery switch: It is the switch of the battery for the power failure alarm. Turn it on usually. Turn it off when you do not drive for a long time. (More than 1 month)MDF-793C is not equipped. 3. Temperature setting key. (PV/SV): This key has functions. PV: Present freezer compartment temperature is displayed. SV: Setting temperature is displayed.
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. Make sure that all the switches on the control panel, such as the power switch, the battery switch, the back-up system switch (option) are off. 2. Liquid CO2 gas cylinder is set at this time. 3. Shut the door and connect the power cable to the power supply after the inner lid is installed. 4. Turn on the power switch and the temperature is displayed on the digital indicator. 5.
CHAMBER 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 -70oC. Note: The unit is set at the factory that the chamber temperature is -80oC. Table 1. Basic operation sequence (Example: Chamber temperature -70oC) Description of operation 1 Turn on the power switch. Press temperature setting key 2 when changing the set temperature during operation.
ALARM TEMPERATURE SETTING This unit is provided with the high temperature alarm. The setting of high temperature alarm is 10oC or 15oC higher than the setting of chamber temperature. The procedure in table 2 shows the sequence to set the high temperature alarm at 15oC higher than the setting of chamber temperature. Set the figure to 000 at step 5 when setting the high temperature alarm at 10oC higher than the setting of chamber temperature.
SETTING OF ALARM RESUME TIME The alarm buzzer is silenced by pressing alarm buzzer stop key (BUZZER) on the control panel during alarm. 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. 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 (Initial setting 130) at the factory. Table 3.
ALARMS & SAFETY FUNCTIONS Table 4. Alarm and safety function Alarm & safety Situation Indication Buzzer Safety operation Intermittent Tone. ----- Filter check When the condenser filter is clogged. Filter check lamp blinks. Auto-return When there is no key pressing in each setting mode for 90 seconds. Chamber temp. is displayed. Sensor abnormality Alarm lamp blinks. E01 and 50oC is displayed alternately. Alarm lamp blinks. If the thermal sensor is E02 and -170oC are shirt-circuited.
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 • Clean the unit once a month. Regular cleaning keeps the unit looking new.
REPLACEMENT OF BATTERY Location of a nickel-cadmium battery This unit is provided a nickel-cadmium battery for the power failure alarm. The battery is located in the control box behind the control panel.(Fig. 1) The high voltage components are enclosed in the control box. The cover should be removed by a qualified engineer or a service personnel only to prevent the electric shock.. Removal of nickel-cadmium battery 1. Turn off the power switch and battery switch and disconnect the power supply plug. 2.
TROUBLESHOOTING If the unit malfunctions, check out the following before calling for service. Malfunction The chamber is not cooled at all The cooling is poor Alarm test key cannot actuate the alarm Noise CO2 back-up test switch does not operate normally (when the back-up system is provided) Check/Remedy 㩵 The voltage is too low. (In this case, call an electrician.) 㩵 The breaker is free. 㩵 The fuse is blown. Sometimes the freezer is not cooled at all for about 5 minutes after starting-up.
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 Note: This symbol mark and recycle system are applied only to EU countries and not applied to the countries in the other area of the world. Waste Electrical and Electronic Equipment (WEEE) Directive-2002/96/EC (English) Your SANYO product is designed and manufactured with high quality materials and components which can be recycled and reused. This symbol means that electrical and electronic equipment, at their end-of-life, should be disposed of separately from your household waste.
DISPOSAL OF UNIT (French) Votre produit Sanyo est conçu et fabriqué avec des matèriels et des composants de qualité supérieure qui peuvent être recyclés et réutilisés. Ce symbole signifie que les équipements électriques et électroniques en fin de vie doivent être éliminés séparément des ordures ménagères. Nous vous prions donc de confier cet équipement à votre centre local de collecte/recyclage.
DISPOSAL OF UNIT (Portuguese) O seu produto SANYO foi concebido e produzido com materiais e componentes de alta qualidade que podem ser reciclados e reutilizados. Este símbolo significa que o equipamento eléctrico e electrónico no final da sua vida útil deverá ser descartado separadamente do seu lixo doméstico. Por favor, entregue este equipamento no seu ponto local de recolha/reciclagem. Na União Europeia existem sistemas de recolha separados para produtos eléctricos e electrónicos usados.
DISPOSAL OF UNIT (Dutch) Sanyo producten zijn ontwikkeld en gefabriceerd uit eerste kwaliteit materialen, de onderdelen kunnen worden gerecycled en weer worden gebruikt. Het symbool betekent dat de elektrische en elektronische onderdelen wanneer deze vernietigd gaan worden , dit separaat gebeurt van het normale huisafval. Zorg ervoor dat het verwijderen van de apparatuur bij de lokaal erkende instanties gaat gebeuren.
TEMPERATURE RECORDER (Option) The figure below shows the description of a temperature recorder. Warning indicator Time Temperature Recording indicator Pen holder lever Door Cartridge 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. Pull the cartridge out of the mounted position. (Fig. 2) 3. Set a new chart in place on the rear bottom of the cartridge.
TEMPERATURE RECORDER (Option) Setting of back-up temperature 1. There is a red guide on the top of the temperature displayer. Adjust the guide with your finger to back-up temperature, at which temperature the auxiliary cooling system starts to operate. 2. Set at a temperature 15oC higher than that of the freezer compartment. Penholder Install a recording pen in the recording hand as shown in the figure. Make sure that the pen is completely inserted for accurate recording.
TEMPERATURE RECORDER (Option) When a 7-day circular type recorder is installed, a slip chart recorder can not be attached. Follow the procedure bellow to attach a 7-day 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 representative or agent. 1. Make sure that all the switches including power supply are turned off. 2. Remove the side cover by loosening four screws. (Fig.1) 3.
TEMPERATURE RECORDER (Option) 8. Remove the sensor cover at the rear of the chamber wall. (Fig. 4) Fig. 4 9. Pass through the hole under the temperature control sensor. (Fig. 5) Tool for the hole: Screw driver (example) Hole depth: 135mm (5.3inch) Hole diameter: 13mm (0.5inch) 10. Route the recorder sensor into the chamber by sassing the hole. (Fig. 4) 11. Remove the sensor support and position the recorder sensor and then replace the stopper. (Fig. 4) Fig. 5 12.
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.
SPECIFICATIONS Name Ultra-Low Temperature Freezer Model MDF-594C External dimensions W2010 x D770 x H1070 (mm) Internal dimensions W1280 x D500x H762 (mm) Effective capacity 487 L Exterior Painted steel Interior Stainless steel Door Painted steel Insulation Rigid polyurethane foamed-in place Compressor Motor for compressor Hermetic type Condenser High stage side; 1100 W Low stage side; 1100 W High stage side; fin and tube type, Low stage side; shell and tube type Evaporator Tube on sh
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: 䂔Yes㩷 䂔Yes㩷 䂔Yes㩷 䂔Yes㩷 㩷 㩷 㩷 㩷 䂔No 䂔No 䂔No 䂔No (List all potentially hazardous materials that have been stored in this unit.) Notes : 2.
JK1035-150B 1
