MDF-U33V Instruction Manual
Contents
1. Press set key sr The first digit is flashed Scroll the figure to 05 by using When pressed the figure of settable are digit changes digit shift key and numerical value When pressed the changeable digit shift key moves Alarm temperature is memorized and Press set key the current chamber temperature is displayed 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 setin 30 minutes at the factory Table 5 Setting procedure for alarm resuming time change from 30 minutes to 20 minutes E Description of operation Key operated Indication after operation 1 The current chamber temperature is displayed Press digit shift key for 5 seconds EM The first digit is flashed F Set the figure to F25 with the digit o The settable digit is shifted shift key and numerical value shift key When pressed the figure of settable Fg l5 digit changes 4 Bresesetke The current reset time is displayed 10 The middle digit is fl2. Remote alarm If the cascade sensor is short circuited Sensor abnormality are displayed alternately Alarm lamp is flashed If the filter sensor is short circuited E06 and chamber temp are displayed alternately Alarm lamp is flashed E07 and chamber temp are displayed alternately Alarm lamp is flashed If the ambient temperature sensor is disconnected If the ambient temperature sensor is short circuited Condenser temp In the event of failure of fan motor for E10 and chamber temp abnormality cooling the compressor are displayed alternately Intermittent tone Compressor of high stage side stops Note e When the operation is started in high ambient temperature the filter check lamp sometimes lights In this case the lamp is off automatically when the chamber temperature is getting lower The freezer resumes the operation after power failure with the temperature setting before power failure as the chamber temperature setting and alarm temperature setting are memorized in the nonvolatile memory The chamber temperature is displayed for 5 seconds by pressing buzzer stop key BUZZER during power failure alarm Then the buzzer is silenced The alarm lamp keeps flashing 24 NO 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 medicatio
3. is level Fig 1 3 Fixing the unit Two fixtures are attached to the rear of the frame Fix the frame to the wall with these fixtures and rope or chain Fig 2 Fixture Leveling foot Fig 1 Fig 2 4 Ground earth The ground earth is for preventing the electric shock in the case of the electrical insulation is somehow degraded Always ground the unit at the time of installation WARNING Use a power supply outlet with ground earth to prevent electric shock If the power supply outlet is not grounded it is necessary to install a ground by qualified engineers Never ground the unit through a gas pipe water main telephone line or lightning rod Such grounding may cause electric shock in the case of an incomplete circuit 61 10 START UP OF UNIT 13 Follow the procedures for the initial and consequent operations of the unit 1 Connect the power cord to the dedicated outlet having appropriate rating with the chamber empty and turn on the power switch on the freezer 2 Turn off the switch of the back up system optional component if it is installed 3 Check that the battery switch is ON 4 The audible alarm may be activated In this case press the buzzer stop key BUZZER to silence the alarm 5 Set the desired chamber temperature See page 14 for the temperature setting 6 Check that the chamber temperature reaches the desired temperature 7 Turn on the switch of the back up
4. N this symbol means caution this symbol means an action is prohibited Ori symbol means an instruction must be followed Be sure to keep this manual in a place accessible to users of this unit lt Label on the unit gt This mark is labeled on the cover in which the electrical components of high voltage are AN enclosed to prevent the electric shock The cover should be removed by a qualified engineer or a service personnel only NWARNING As with any equipment that uses CO gas there is a likelihood of oxygen depletion in the vicinity of the equipment It is important that you assess the work site to ensure 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 PRECAUTIONS FOR SAFE OPERATION NWARNING 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 If the floor is not strong enough or the installation site is not adequate this may result in injury from the unit falling or tipping over Never install the unit in a humid place or a place where
5. and alarm resume time Refer to page 15 and 16 for details respectively 5 Digital temperature indicator This indicator shows the present chamber temperature or set temperature 6 Alarm lamp ALARM This lamp is flashed during alarm condition 7 Alarm test key ALARM TEST To check the alarm system during freezer operation Pressing this key with the battery switch ON gets the alarm lamp to flash the remote alarm to operate and the buzzer to sound 8 Door check lamp DOOR This lamp lights when the door is open 9 Filter check lamp FILTER This lamp lights when the excessive dust is accumulated on the condenser filter When this lamp lights clean the condenser filter following the procedure on page 22 10 Battery check lamp BATTERY This lamp flickers to recommend the battery replacement For the replacement consult Sanyo sales representative or agent 11 Status monitor lamp STATUS This lamp lights when environmental condition or status gets worse or the unit is out of normal operation 12 Status key STATUS By pressing this key in the event of the status monitor lamp ON the status code is displayed on the temperature indicator This key is not effective when the freezer is running normally See page 18 for details ni 10 INSTALLATION SITE 11 To operate this unit properly and to obtain maximum performance install the unit in a location with the following conditions m location not subjected to d
6. or maintenance of the unit in order to prevent electric shock or injury Do not touch any electrical parts such as power supply plug or operate switches with a wet hand This may cause electric shock PRECAUTIONS FOR SAFE OPERATION NWARNING Ensure you do not inhale or consume medication or aerosols from around the unit at the time of o maintenance These may be harmful to your health OQ 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 A broken supply cord or plug may cause fire or electric shock G Do not use the supply cord if its plug is loose Such supply cord may cause fire or electric shock SO Never disassemble repair or modify the unit yourself Any such work carried out by an unauthorized person may result in fire or electric shock or injury due to a malfunction Disconnect the power supply plug if there is something wrong with the unit Continued abnormal operation may cause electric shock or fire o When removing the plug from the power supply outlet grip the power supply plug not the cord Pulling the cord may result in electric shock or fire by short circuit e Disconnect the power supply plug before moving the unit Take car
7. switch This is a switch for a battery for power failure alarm Normally turn on this switch Be sure to turn off this switch if the freezer is not in operating for the long period over one month 17 Remote alarm terminal This is used to notice an alarm condition of the unit to remote location Refer to page 17 Remote alarm terminal 18 Space for optional component FREEZER COMPONENTS TEMP e Ge end em 0 8 1 7 12 2 3 4 1 Buzzer stop key BUZZER To silence the audible alarm under alarm condition press this key The buzzer during alarm test cannot be silenced by this key 2 Set key SET Temperature setting mode is led by pressing this key and the changeable digit is flashed By pressing this key again the setting is memorized The set mode returns to the temperature display mode automatically when 90 seconds has passed without any key operation Refer to page 14 for details 3 Digit shift key pp Pressing this key in the setting mode causes the changeable digit to shift Key lock is available by pressing this key for more than 5 seconds in the temperature display mode Refer to page 14 for details 4 Numerical value shift key 4 Pressing this key in the setting mode causes the numerical value to shift ON OFF of key lock can be selected by pressing this key in the key lock mode By pressing this key for more than 5 seconds in the temperature display mode leads setting mode for alarm temperature
8. the condenser filter 3 Wash the filter with water 4 Replace the filter and the grille 5 Check that the filter check lamp is off in the event the check lamp was ON WARNING Do not touch the condenser directly when the filter is removed for cleaning This may cause injury by hot surface As 22 ROUTINE MAINTENANCE 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 Take out and transfer all the contents to another freezer or a container which is refrigerated by liquid carbon dioxide or dry ice 3 Turn off the power switch of the freezer 4 Open the outer door and inner door Remove the inner door by lifting up as shown in the figure 5 Leave the freezer as it is 6 The water accumulated on the bottom of the chamber should be wiped up with a dry cloth T After cleaning the chamber and inner door replace the inner door and start up the unit according to the procedure on page 16 8 Put back the articles into the sufficiently co
9. 32V N Please decontaminate the unit yourself before calling the service engineer 37 6
10. EEZER STATUS The freezer has a function to monitor the running status of the unit as shown in table 6 below Thisisto notice the running status getting worse not failure 1 The STATUS 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 The indication returns to the chamber temperature display automatically when no key is operated for 90 seconds Table 6 Monitor of running status Kind of function Notice of abnormal ambient temperature Notice of low voltage Notice of overload condition Note Status When the ambient temp is over approx 35 C or lower than about 0 C When the power source voltage is less than approx 97 V when the rated voltage is 115 V When the running rate of refrigerating Circuit is higher than usual STATUS lamp lights 1 is displayed STATUS lamp lights 2 is displayed STATUS lamp lights 3 is displayed Decrease of cooling performance or durability of refrigerating circuit Abnormal heat at power supply outlet or degrade of starting performance of refrigerating circuit Decrease of cooling performance or durability of refrigerating circuit mE If this status Indication Rem
11. Installation under high humidity may cause current leakage or electric shock N WARNING Do not use the unit outdoors Current leakage or electric shock may result if the unit is exposed to rain water Never install the unit in a humid place or a place where it is likely to be splashed by water Deterioration of the insulation may result which could cause current leakage or electric shock m A location without flammable or corrosive gas Never install the unit in a flammable or volatile location This may cause explosion or fire or may result in the current leakage or electric shock by the corrosion of the electrical components m A location without the possibility of anything fall Avoid installing the unit in the location where anything can fall down onto the unit This may cause the breakdown or failure of the unit 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 Adjusting the leveling foot Extend the leveling feet by rotating them counterclockwise to contact them to the floor Ensure the unit
12. as suffocation Recycle of battery AY Ni Cd The unit contains a rechargeable battery The battery is recyclable At the end EY of it s useful life check with you local solid officials option or proper disposal Label indication is obliged to comply with Taiwanese battery regulation 3 es 26 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 Please dispose of this equipment at your local community waste collection recycling centre In the European Union there are separate collection systems for used electrical and electronic products Please help us to conserve the environment we live in German Ihr SANYO Produkt wurde entworfen und hergestellt mit qualitativ hochwertigen Materialien und Komponenten die recycelt und wiederverwendet werden k nnen Dieses Symbol bedeutet da elektrische und elektronische Ger te am Ende ihrer Nutzungsdauer von Hausm ll getrennt entsorgt werden sollen Bitte entsorgen Sie dieses Gerat bei Ihrer rtlichen kommunalen Sammelst
13. ashed 5 Set the figure to 020 with the When pressed the figure of settable T numerical value shift key digit changes The setting is memorized and Press set key SET the current chamber temperature is E displayed The settable alarm resume time is 10 20 30 40 50 or 60 minutes The setting is 010 020 030 040 050 or 060 The buzzer would not reset if the reset time is set in 000 It is recommended to set the alarm resume time when the freezer is not under alarm condition The setting during alarm condition is effective on the next alarm condition The setting cannot be changed during power failure The remote alarm during power failure or buzzer and remote alarm during alarm test cannot be silenced he set mode returns to the temperature display mode automatically when 90 seconds has passed without any key operation In this case any setting before pressing set key SET is not memorized 5 es 16 REMOTE ALARM TERMINAL 17 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 2A 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 MAX DC30V 2A MONITOR OF FR
14. carefully before using the appliance and follow the instructions for safety operation m 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 m Keep this manual in an adequate place to refer to it as necessary m The contents of the manual will be subjected to change without notice due to the improvement of performance or functions m Contact Sanyo sales representative or agent if any page of the manual is lost or page order is incorrect m Contact Sanyo sales representative or agent if any point in this manual is unclear or if there are any inaccuracies m No part of this manual may be reproduced in any form without the expressed written permission of Sanyo Sf 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 NWARNING Failure to observe WARNING signs could result in a hazard to personnel possibly resulting in serious injury or death NCAUTION Failure to observe CAUTION signs could result in injury to personnel and damage to the unit and associated property Symbol shows
15. ctivated Power failure alarm nen me POWE tO the UNIKLI Alarm lamp is flashed Intermittent tone Remote alarm disconnected Door alarm When the door is open Door check lamp lights MaRe tone Wiin 2minutes delay Filter check When the condenser filter is clogged Filter check lamp lights When about 2 8 years has passed with Battery check power switch ON Battery check lamp lights When there is no key pressing in Chamber temperature is Finishing of each setting Auto return each setting mode for 90 seconds displayed mode Change of setting is disable Alarm lamp is flashed Remote alarm If the thermal sensor is disconnected E01 and chamber temp Intermittent tone Unit keeps continuous Key lock When the key lock is ON are displayed alternately running Alarm lamp is flashed Remote alarm If the thermal sensor is short circuited E02 and chamber temp Intermittent tone Unit keeps continuous are displayed alternately running Alarm lamp is flashed Ponosan If the cascade sensor is disconnected E03 and chamber temp Intermittent tone Remote alarm are displayed alternately Alarm lamp is flashed E04 and chamber temp Intermittent tone are displayed alternately Alarm lamp is flashed Intermittent tone Intermittent tone Intermittent tone E08 and chamber temp Intermittent tone are displayed alternately mcum check alarm test E09 is flashed If the filter sensor is disconnected E05 and chamber temp
16. dos y reutilizados Este s mbolo significa que el equipo el ctrico y electr nico al final de su ciclo de vida no se debe desechar con el resto de residuos dom sticos Por favor deposite su viejo televisor en el punto de recogida de residuos o contacte con su administraci n local En la Uni n Europea existen sistemas de recogida espec ficos para residuos de aparatos el ctricos y electr nicos Por favor ay denos a conservar el medio ambiente tf s 2g DISPOSAL OF UNIT 29 Portuguese O seu produto SANYO foi concebido e produzido com materiais e componentes de alta qualidade que podem ser reciclados e reutilizados Este s mbolo significa que o equipamento el ctrico e electr nico no final da sua vida til dever ser descartado separadamente do seu lixo dom stico Por favor entregue este equipamento no seu ponto local de recolha reciclagem Na Uni o Europeia existem sistemas de recolha separados para produtos el ctricos e electr nicos usados Por favor ajude nos a conservar o ambiente em que vivemos Italian II vostro prodotto SANYO stato costruito da materiali e componenti di alta qualita che sono riutilizzabili o riciclabili Prodotti elettrici ed elettronici portando questo simbolo alla fine dell uso devono essere smaltiti separatamente dai rifiuti casalinghi Vi preghiamo di smaltire questo apparecchio al deposito comunale Nell Unione Europea esistono sistemi di raccolta differe
17. e not to damage the power cord A damaged cord may cause electric shock or fire e Disconnect the power plug when the unit is not used for long periods Keeping the connection may cause electric shock current leakage or fire due to the deterioration of insulation o 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 cannot be closed completely o The disposal of the unit should be accomplished by appropriate personnel Remove doors to prevent accidents such as suffocation D Do not put the packing plastic bag within reach of children as suffocation may result PRECAUTIONS FOR SAFE OPERATION NCAUTION 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 S Never store corrosive substances such as acid or alkali in this unit if the container cannot be sealed These may cause corrosion of inner components or electric parts o Check the setting when starting up of operation after power failure or turning off of power switch The stored items may be damaged due to the change of setting o Be careful not to tip over the unit during movement to p
18. edy continues Recheck air conditioning of installed site Use dedicated power source 1 This is likely to happen when a large amount of materials is stored 2 Check ambient temp voltage and sealing of outer inner door The S code displayed on the temperature indicator is changed every few seconds if two or three status shown in the above table are detected at the same time FSS uu The monitoring function does not trigger a buzzer or conduct a safety operation In the case of multiple indication of S code follow the remedy for each status 67 repeated 18 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 is based on the assumption that the delay time is changed to 4 minutes The delay time is set in 2 minutes at the factory Note The delay time should be the same for high stage side and low stage side compressors The setting range for delay time is between 2 and 15 minutes The cool down of chamber temperature may be slow when the setting of delay time is over 5 minutes depending on the installation environment There is no need of changing the delay time when the capacity of power source is adequate Table 7 Changing procedure for delay time change from 2 minutes to 4 minutes a Descri
19. elle oder im Recycling Centre In der Europ ischen Union gibt es unterschiedliche Sammelsysteme f r Elektrik und Elektronikger te Helfen Sie uns bitte die Umwelt zu erhalten in der wir leben 27 70 DISPOSAL OF UNIT French Votre produit Sanyo est con u et fabriqu avec des mat riels et des composants de qualit sup rieure qui peuvent tre recycles et r utilis s Ce symbole signifie que les quipements lectriques et lectroniques en fin de vie doivent tre limin s s par ment des ordures m nag res Nous vous prions donc de confier cet quipement votre centre local de collecte recyclage Dans l Union Europ enne il existe des syst mes s lectifs de collecte pour les produits lectriques et lectroniques usag s Aidez nous conserver l environnement dans lequel nous vivons Les machines ou appareils lectriques et lectroniques contiennent fr quemment des mati res qui si elles sont trait es ou limin es de mani re inappropri e peuvent s av rer potentiellement dangereuses pour la sant humaine et pour l environnement Cependant ces mati res sont n cessaires au bon fonctionnement de votre appareil ou de votre machine Pour cette raison il vous est demand de ne pas vous d barrasser de votre appareil ou machine usag avec vos ordures m nageres Spanish Los productos SANYO est n disefiados y fabricados con materiales y componentes de alta calidad que pueden ser recicla
20. er sensor on the sensor cover with EE the enclosed clips Fig 6 Seal the access port with a silicon and replace the recorder sensor cover Fix the cover to the inside wall Fig 3 Recorder sensor Silicon Recorder sensor cover 7 Remove the connector cover Connect the recorder connector at the end of the power cord with the white connector on the left of the base compartment Bind the extra lead wire of the sensor with a nylon clip on the N back of the recorder Fig 7 connector gt as 8 Front panel and fix them with screws Fig 9 Operate the freezer until the chamber temperature gets to the set temperature Check the recorded temperature and chamber temperature displayed on the control panel Adjust the zero adjustment volume on the temperature recorder so that the recorded temperature can corresponds with the displayed temperature if they are not compliance each other 39 BACK UP SYSTEM OPTION 33 N WARNING As with any equipment that uses CO 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 This freezer can be provided with a back up system CVK UB2 or CVK UB2 1 which is available a
21. etal 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 Turn off the power switch and disconnect the power supply plug 2 As shown in the Fig 2 remove 7 screws fixing the side cover with a screw driver and remove the side cover 3 Remove 4 screws fixing the electrical box cover with a screw driver Fig 3 4 Disconnect the battery connector and remove 2 screws fixing the battery mounting plate Fig 4 5 Take out the battery 6 Follow the procedure for recycling or proper disposal Handling of battery Cover the battery terminal with an insulating tape to avoid the short circuit Then follow the procedure for recycling or proper disposal 3 r Electrical box Side cover Electrical box cover mounting plate 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
22. f settable Set to 75 with the numerical value digit changes Note The temperature set mode returns to the temperature display mode automatically when 90 seconds has passed without any key operation Although the value of the chamber temperature setting can range from 50 C to 90 C the guaranteed temperature with no load is 86 C when the ambient temperature is 30 C Key lock function This unit is provided with the key lock function When the key lock is ON change of temperature setting through the key pad is not possible The key lock is set to OFF at the factory Display Key lock is OFF Enable to change temperature setting Key lock is ON Disable to change temperature setting Table 2 Procedure for key lock setting change from key lock OFF to key lock ON a Description of operation Key operated Indication after operation The current chamber temperature is H displayed Press digit shift key for 5 seconds The first digit is flashed n Eumene sete LT and scroll the figure to 1 digit Sandes The key lock is set to ON eme The current chamber temperature is displayed E 14 ALARM TEMPERATURE SETTING 15 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 accordi
23. irect sunlight Do not install the unit under direct sunlight Installation in a location subjected to direct sunlight cannot obtain the intended performance m A location with adequate ventilation Leave at least 10 cm around the unit for ventilation Poor ventilation will result in a reduction of the performance and consequently the failure m A location away from heat generating sources Avoid installing the unit near heat emitting appliances such as a heater or a boiler etc Heat can decrease the intended performance of the unit m A location with little temperature change Install the unit under stable ambient temperature The allowable ambient temperature is between 5 and 30 C m A location with a sturdy and level floor Always install the unit on a sturdy and level floor The uneven floor or tilted installation may cause failure or injury Install the unit in stable condition to avoid the vibration or noise Unstable condition may cause vibration or noise N WARNING Install the unit on a sturdy floor If the floor is not strong enough or the installation site is not adequate this may result in injury from the unit falling or tipping over Select a level and sturdy floor for installation This precaution will prevent the unit from tipping Improper installation may result in water spillage or injury from the unit tipping over m A location not prone to high humidity Install the unit in the ambient of 80 R H or less humidity
24. is blocked The condenser filter is clogged Always clean the filter when the filter check lamp is lit he set temperature is not inputted properly The freezer is not away from the direct sunlight There is any heating source near the freezer A rubber cap and insulation for the access port are not set correctly You put too many unfrozen articles into the freezer compartment The alarm is activated only when the power switch is ON 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 The freezer is not installed on the sturdy floor There is anything touching the frame The freezer is not leveled with the leveling feet The freezer is in the status immediately after start up The unit sometimes causes a noise when the chamber temperature is high due to the large load The noise gets less and less accompanying with the cooling of the chamber he liquid carbon dioxide tank is empty The valve of the carbon dioxide tank is not opened The ambient temperature is too high In this case move the tank to a cool location Inquire at liquid carbon dioxide suppliers about its check adjustment installation or move 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 a hs 24 REPLACEMENT OF BATTERY 25 Location of a nickel m
25. it is likely to be splashed by water Deterioration of the insulation may result which could cause current leakage or electric shock S Never install the unit in a flammable or volatile location This may cause explosion or fire S Never install the unit where acid or corrosive gases are present as current leakage or electric shock may result due to corrosion qi ground earth the unit to prevent electric shock If the power supply outlet is not grounded it will be necessary to install a ground by qualified engineers S Never ground the unit through a gas pipe water main telephone line or lightning rod Such grounding may cause electric shock in the case of an incomplete circuit o Connect the unit to a power source as indicated on the rating label attached to the unit Use of any other voltage or frequency other than that on the rating label may cause fire or electric shock S Never store volatile or flammable substances in this unit if the container cannot be sealed These may cause explosion or fire Do not insert metal objects such as a pin or a wire into any vent gap or any outlet on the unit This may cause electric shock or injury by accidental contact with moving parts Use this unit in safe area when treating the poison harmful or radiate articles Improper use O may cause bad effect on your health or environment e Turn off the power switch if provided and disconnect the power supply to the unit prior to any repair
26. le 8 Changing procedure for delay time change from 2 minutes to 3 minutes z mE of operation Key operated Indication after operation The current chamber temperature is m H displayed 0e numerical value ee key for 5 seconds Set the figure to F04 with the When pressed the figure of settable FO numerical value shift key digit changes Press set key The first digit is flashed Set the figure to 003 with the When pressed the figure of the first numerical value shift key digit changes The delay time is memorized and Press set key SET the current chamber temperature is displayed Note The setting range for delay time is between 1and 15 minutes H U d The current delay time is displayed 2 3 H Oo 20 ALARMS amp 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 amp Safety Safety operation If the chamber temperature is higher than the temperature at which the high temperature alarm is activated High temperature alarm Alarm lamp is flashed Temperature indicator is flashed Intermittent tone with Remote alarm with 15 If the chamber temperature is lower 15 minutes delay minutes delay sow Temperature than the temperature at which the alarm low temperature alarm is a
27. li Instruction manual MN This section is extracted and printed from Instruction Manual If you find out Refer to page 00 in them this page means not page in Service manual but page in the lower corner of each page in the extract from Instruction Manual This page number is not corresponded with serial number in Service manual Please note the extracted Instruction Manual which corresponds to the initial unit production so the contents may be revised in future SANYO INSTRUCTION MANUAL MDF U33V MDF U32V N Ultra Low Temperature Freezer 050000 CONTENTS INTRODUCTION p 2 PRECAUTIONS FOR SAFE OPERATION PS 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 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 20 ALARMS amp SAFETY FUNCTIONS P 21 ROUTINE MAINTENANCE Cleaning of cabinet p 22 Cleaning of condenser filter p 22 Defrosting of inside wall P 23 Replacement of battery P 23 TROUBLESHOOTING P 24 REPLACEMENT OF BATTERY P 25 DISPOSAL OF UNIT P 26 TEMPERATURE RECORDER OPTION P 31 BACK UP SYSTEM OPTION P 33 INVENTORY RACK OPTION P 34 SPECIFICATIONS P 35 PERFORMANCE P 36 SAFETY CHECK SHEET P 37 INTRODUCTION m Read this manual
28. n 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 Use a dry cloth to wipe off small amounts of dirt on the outside and inside of the unit and all accessories 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 cabinet or accessories with a dry cloth Never pour water onto or into the unit Doing so can damage the electric insulation and cause failure The compressor and other mechanical parts are completely sealed This unit requires absolutely no lubrication Check the back up system by pressing TEST switch once a month if it is installed Remove the frost or ice on the chamber wall and clean the condenser filter once a month Cleaning of condenser filter This unit is provided with the filter check lamp on the control panel Clean the filter when this lamp lights Clean the filter once a month even if the check lamp is not on since a clogged filter may cause shorter compressor life as well as the poor cooling Clean the filter by the procedure below 1 Open the grille by pulling it to you as shown in the figure 2 Take out
29. ng 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 Note The alarm temperature is set at the factory 10 C higher and lower than the set temperature The available range of alarm temperature is between 5 C and 20 C higher or lower than the set temperature Table 3 Procedure for setting high temperature alarm Description of operation Key operated Indication after operation The current chamber temperature is A D displayed ee 4 en eon about 5 seconds and scroll the figure to 1 Press set key NEM The first digit is flashed Scroll the figure to 005 by using Ao Viii p the figure of settable hift k val digit shift key and numerical value quen pressed the changeable digit shift key ms Alarm temperature is memorized and Press set key the current chamber temperature is displayed Table 4 Procedure for setting low temperature alarm E Description of operation Key operated Indication after operation The current chamber temperature is displayed Press numerical value shift key for FE g E canard o The first digit is flashed FUL Press numerical value shift key The first diait is flashed E and scroll the figure to 2 J
30. nless steel 3 shelves adjustable W464 x D535 mm Load 50 kg shelf Access port 17 mm diameter 3 locations back bottom corner left right Insulation Compressor Hermetic type Output 450 W high stage side 750 W low stage side Vacuum insulation panel Rigid polyurethane foamed in place Evaporator Tube on sheet type Condenser Fin and tube type high stage side Shell and tube type low stage side Refrigerant R 404A high stage side R 508 low stage side Temperature controller Thermal sensor Platinum resistance Pt 1000 Alarm High temp alarm Low temp alarm Power failure alarm Door alarm Remote alarm contact Allowable contact capacity DC 30V 2A Battery Nickel metal hydride battery DC 6 V 1100 mAh Auto recharge 5HR AAC Accessories 1 set of key 1 scraper Optional component Inventory rack IR 216U IR 220U 3 drawers for lower and upper compartment MDF 30R Automatic temperature recorder MT R G85 gt i D 3 O Automatic temperature recorder MTR 85H Mounting kit MDF S3085 Back up system CVK UB2 LCO Note Design or specifications will be subject to change without notice e 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 Fan motors are expendable supplies Exchange it for about every 6 years Contact San
31. nziata per prodotti elettrici ed elettronici Aiutateci a conservare l ambiente in cui viviamo 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 In de Europese Unie wordt de gebruikte elektrische en elektronische apparatuur bij de daarvoor wettelijke instanties aangeboden Alstublieft help allen mee om het milieu te beschermen Swedish Din SANYO produkt ar designad och tillverkad av material och komponenter med h g kvalitet som kan atervinnas och ateranvandas Denna symbol betyder att elektriska och elektroniska produkter efter slutanvandande skall sorteras och lamnas separat fran Ditt hushallsavfall V nligen l mna denna produkt hos Din lokala mottagningstation f r avfall atervinningsstation Inom den Europeiska Unionen finns det separata atervinningssystem f r begagnade elektriska och elektroniska produkter Vanligen hj lp oss att bevara milj n vi lever i cx 30 TEMPERATURE RECORDER OPTION N WARNING Disconnect the power supply plug before attaching the temperature recorder or it may cause electric shock or fire An automatic
32. oled freezer compartment 9 Turn on the back up system if it is provided Replacement of battery 23 The battery for power failure alarm is an article for consumption The battery life is approximately 3 years The buzzer can not be activated at the power failure and the stored items may be influenced if the battery is left as it is for more than 3 years It is recommended that the battery is replaced ahead of time For the replacement of the battery contact Sanyo sales representative or agency TROUBLE SHOOTING If the unit malfunctions check out the following before calling for service Mafuncion Check Remedy The chamber is not cooled at all The cooling is poor Alarm test key cannot actuate the alarm Back up test switch does not operate normally when the back up system is provided Note The circuit breaker of power source is active The voltage is too low The status code 2 is displayed See page 18 In this case call an electrician The power switch is not ON The large amount of articles load is stored in the chamber at one time The status code 3 is displayed See page 18 The ambient temperature is too high The status code 1 is displayed See page 18 The latch of inner door is not closed completely The outer door is not closed firmly The frost or ice between the cabinet and door gasket possibly prevents door seal he air intake vent
33. ption of operation Key operated Indication after operation The current chamber temperature is displayed 1 Press numerical value shift key for EN 2 dS dj A ht first digit is flashed 5 seconds D U 5 2 The current delay time is displayed The first digit is flashed Set the figure to 004 with the When pressed the figure of the first numerical value shift key digit changes The delay time is memorized and Press set key SET the current chamber temperature is displayed The compressor starts to operate with the delay time set by the above procedure at the time of power on Press set key H FU Set the figure to F05 with the When pressed the figure of settable E n 2 numerical value shift key digit changes or after power failure However the start up of the low stage side compressor is affected by the chamber temperature and the cascade condenser temperature The delay time varies depending on how they meet the start up conditions 19 68 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 Tab
34. revent damage or injury o Prepare a safety check sheet when you request any repair or maintenance for the safety of service personnel 55 ENVIRONMENTAL CONDITIONS This equipment is designed to be safe at least under the following conditions based on the IEC 61010 1 m Indoor use m Altitude up to 2000 m a Ambient temperature 5 C to 40 C m Maximum relative humidity 80 for temperature up to 31 C decreasing linearly to 50 relative humidity at 40 C m Mains supply voltage fluctuations not to exceed 10 of the nominal voltage m Other supply voltage fluctuations as stated by the manufacturer m Transient overvoltages according to Installation Categories Overvoltage Categories Il For mains supply the minimum and normal category is Il m Pollution degree 2 in accordance with IEC 60664 FREEZER COMPONENTS FREEZER COMPONENTS 1 Outer door To open the door grip the handle On closing lock the door latch completely 2 Handle Always grip this handle to open and close the outer door 3 Door latch Always lock the latch when the outer door is closed 4 Magnetic door gasket This provides a tight door seal and prevents cold air leak Keep clean 5 Access port back and bottom This is used for leading a cable and sensor of a measuring equipment or nozzle of back up system to chamber 6 Inner door The operation of the inner door should be quick to minimize the temperature rise in chamber Lock
35. s an optional component For the installation refer to the instruction manual enclosed with the system 1 Switch of back up system BACKUP When turning on the system the lamp is brightened This means that the system is ready To stop the operation of the system turn off this switch 2 Test switch TEST This switch is for checking the operation of back up system Pressing this switch is resulted in the release of liquid carbon dioxide without system operation 3 Temperature setting knob TEMP SET With this knob set the temperature at which the system is operated The effective set temperature range is between 50 C and 70 C OPTIONAL COMPONENTS Inventory rack The optional inventory rack is useful to store the precious materials in the chamber effectively When the rack is used it is necessary to adjust the height of the shelves Set the shelf support as shown in the figure below Shelf support No 7 under first screw from the top No 1 under forth screw from the top No 1 under second screw from the bottom 34 SPECIFICATIONS Name Ultra Low Temperature Freezer Model MDF U33V MDF U32V N External dimensions W670 x D867 x H1860 mm W490 x D600 x H1140 mm 333 L Painted steel Internal dimensions Effective capacity Painted steel Painted steel ABS resin panel with stainless frame 2 doors Shelf Stai
36. system optional component if it is installed 8 Make sure that the alarm lamp blinks and the buzzer sounds by pressing the alarm test key ALARM TEST 9 After confirming the above you can put articles into the freezer chamber in a small batch to prevent the temperature rise Note When you start the unit at low ambient temperature the unit is programmed to repeatedly turn on and off the compressor in order to make its startability better 115 V 60 Hz only Operation after power failure The set value is memorized by nonvolatile memory Accordingly the freezer resumes the operation with setting before power failure 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 C Note The unit is set at the factory that the chamber temperature 80 C Table 1 Basic operation sequence Example Chamber temperature 75 C m Description of operation Key operated Indication after operation 1 Tur the power switch ON The current chamber temperature is displayed 2 Press set key sr The second digit is flashed shift key and digit shift key When pressed the settable digit is shifted Set temperature is memorized and the 4 Press set key current chamber temperature is displayed When pressed the figure o
37. temperature recorder is available for this freezer as the optional component The type of the recorder is MTR G85 Consult Sanyo sales representative or agent for the recorder installation Following shows the installation procedure 1 Remove four screws shown by arrows on the front panel and take the panel off Then take off the cover for the recorder mounting space by removing four screws Fig 1 Side panel Cover Fig 1 2 As shown in the Fig 2 insert the temperature recorder to the mounting space and fix it to the back side of the front panel by using the recorder fixture enclosed with the recorder Fig 2 3 Take off the recorder sensor cover in the chamber bottom left side by removing two screws Then remove the rubber cap and insulation covering the Recorder sensor cover access port Fig 3 Access port Fig 3 31 830 TEMPERATURE RECORDER OPTION 4 As shown in the Fig 4 pass the recorder sensor Sensor guide pipe through the sensor guide pipe from the front to the back The sensor guide pipe is provided on the upper left side A Re of the base compartment a Nm Fig 4 5 Take out the recorder sensor from the guide pipe at Access port the back side and pass the sensor to the chamber through the access port Fig 5 The access port is covered with an thermal insulation and rubber cap Remove them before passing the recorder sensor through it 6 Attach the record
38. the door latch completely when the door is closed The door is removable for cleaning or defrosting See page 22 Routine maintenance 7 Lock Turn clockwise to 180 with a key and the outer door is securely locked 8 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 9 Caster 4 casters are provided to facilitate moving of the cabinet For the installation adjust the leveling foot so that the front 2 casters cannot contact with the floor 10 Leveling foot The height of the freezer can be adjusted by this screw type foot Keep the unit in level at the installation 11 Fixture on back side 2 fixtures are provided as spacers between the cabinet and wall and also serve as hooks to fix the unit See page 12 Installation 12 Air intake vent grille Do not block this vent to keep the proper cooling performance 13 Power switch This is for turning ON OFF the power to the unit ON I OFF O 14 Space for temperature recorder An automatic temperature recorder optional component can be attached here See page 31 Temperature recorder 15 Condenser filter behind the grille This filter prevents the dust from accumulating on the condenser The dusty filter may cause failure of refrigerating device Clean the filter once a month See page 22 Routine maintenance for the cleaning 16 Battery
39. yo sales agency at the time of replacement of the fan motor 35 Lu PERFORMANCE Cooling performance 86 C at the center of the chamber ambient temperature 30 C no load Temperature control range 50 C to 86 C ambient temperature 30 C no load 115 V 60 Hz 220 V 50 Hz 220 V 60 Hz 230 V 50 Hz 240 V 50 Hz Rated power consumption 75 W 640 W 710 W 610 W 650 W 49 dB A background noise 20 dB 1 9 MPa Note The unit with CE mark complies with EC directives 89 336 EEC 93 68 EEC and 73 23 EEC 9 36 AN 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 Yes LINo 1 Freezer contents Yes INO Risk of infection Yes _INo Risk of toxicity Yes LINo Risk from radioactive sources List all potentially hazardous materials that have been stored in this unit Notes 2 Contamination of the unit Yes INO Unit interior Yes LINo No contamination Yes _INo Decontaminated Yes LINo Contaminated Others 3 Instructions for safe repair maintenance of the unit a The unit is safe to work on Yes ONo b There is some danger see below Yes LINo 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 Ultra low temperature MDF U33V freezer MDF U
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