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MDF-394
MDF-394AT

Ultra-Low Temperature Freezer

INSTRUCTION MANUAL

MDF-394AT

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Summary of Contents for MDF-394

Page 1: ...MDF 394 MDF 394AT Ultra Low Temperature Freezer INSTRUCTION MANUAL MDF 394AT ...

Page 2: ...LARM TEMPERATURE SETTING P 15 SETTING OF ALARM RESUME TIME P 16 REMOTE ALARM TERMINAL P 17 ALARMS SAFETY FUNCTIONS P 18 ROUTINE MAINTENANCE Cleaning of cabinet P 19 Cleaning of condenser filter P 19 Defrosting of inside wall P 19 TROUBLESHOOTING P 20 REPLACEMENT OF BATTERY P 21 DISPOSAL OF UNIT P 22 Recycle of battery P 22 TEMPERATURE RECORDER for AT type P 27 BACK UP SYSTEM for AT type P 29 SPECI...

Page 3: ...nual in an adequate place to refer to it as necessary The contents of the manual will be subjected to change without notice due to the improvement of performance or functions Contact Sanyo sales representative or agent if any page of the manual is lost or page order is incorrect Contact Sanyo sales representative or agent if any point in this manual is unclear or if there are any inaccuracies No p...

Page 4: ... Symbol shows this symbol means caution this symbol means an action is prohibited this symbol means an instruction must be followed Be sure to keep this manual in a place accessible to users of this unit Label on the unit This mark is labeled on the cover in which the electrical components of high voltage are enclosed to prevent the electric shock The cover should be removed by a qualified enginee...

Page 5: ...ower supply outlet is not grounded it will be 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 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 th...

Page 6: ...unction Disconnect the power supply plug if there is something wrong with the unit Continued abnormal operation may cause electric shock or fire 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 Disconnect the power supply plug before moving the unit Take care not to damage the power co...

Page 7: ...y cause a heat or ignition 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 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 Be careful not to tip over the unit during mov...

Page 8: ...midity 80 for temperature up to 31o C decreasing linearly to 50 relative humidity at 40o C Mains supply voltage fluctuations not to exceed 10 of the nominal voltage Other supply voltage fluctuations as stated by the manufacturer Transient overvoltages according to Installation Categories Overvoltage Categories II For mains supply the minimum and normal category is II Pollution degree 2 in accordan...

Page 9: ...8 FREEZER COMPONENTS Rear side 14 Fixture Remote alarm terminal 4 4 MDF 394 1 3 12 7 8 9 15 2 10 13 5 11 6 ...

Page 10: ... power switch and so on are installed AT type has a temperature recorder and switches of back up system Refer to page 10 for details 8 Control panel cover 9 Control panel cover lock To lock the control panel cover to avoid the setting by accidental contact 10 Exhaust air vent Be careful not to block this 11 Intake air vent grille Do not block this vent to keep the proper cooling performance 12 Lev...

Page 11: ...erature setting mode is led by pressing this key The changeable digit is flashed Pressing this key again after temperature setting memorizes the setting 6 Digit shift key Pressing this key in the setting mode causes the changeable digit to shift Key lock mode is led by pressing this key for more than 5 seconds in the temperature display mode Refer to page 14 for the key lock function 7 Numerical v...

Page 12: ... cause vibration or noise 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 A lo...

Page 13: ...m counterclockwise to contact them to the floor Ensure the unit is level See figure 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 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 WA...

Page 14: ...battery needs to be replaced about every 3 years Contact Sanyo sales representative or agent for battery replacement 6 The alarm buzzer sometimes operates In this case stop the buzzer by pressing the alarm buzzer stop key BUZZER Do not set the chamber temperature lower than 85o C 7 Set the chamber temperature to the desired temperature 8 Make sure the required temperature is displayed on the tempe...

Page 15: ...n 90 seconds has passed without any key operation Although the value of the chamber temperature setting can range from 50o C to 90o C the guaranteed temperature with no load is 86o C when the ambient temperature is 30o 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 available The key lock is set i...

Page 16: ... flashed 4 Press set key SET The current setting is displayed The first digit is flashed 5 Scroll the figure to 005 by using the digit shift key and the numerical value shift key When pressed the figure of settable digit changes When pressed the changeable digit moves 6 Press set key SET Alarm temperature is memorized and the current chamber temperature is displayed Table 4 Procedure for setting l...

Page 17: ...ure to F25 with the digit shift key and the numerical value shift key The settable digit is shifted When pressed the figure of settable digit changes 4 Press set key SET The current reset time is displayed The second digit is flashed 5 Set the figure to 020 with the numerical value shift key When pressed the figure of settable digit changes 6 Press set key SET The setting is memorized and the curr...

Page 18: ...upper 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 ...

Page 19: ...Intermittent tone Remote alarm If the cascade sensor is short circuited Alarm lamp is flashed E04 and chamber temp are displayed alternately Intermittent tone Remote alarm If the filter sensor is disconnected Alarm lamp is flashed E05 and chamber temp are displayed alternately Intermittent tone Remote alarm If the filter sensor is short circuited Alarm lamp is flashed E06 and chamber temp are disp...

Page 20: ...d clean the condenser filter once a month Cleaning of condenser filter The unit is provided with the filter check lamp This lamp lights and buzzer sounds when the condenser filter is clogged Clean the condenser filter according to the following procedure As a clogged condenser filter may cause poor cooling and compressor trouble clean it once a month The condenser filter fitted to the grille can b...

Page 21: ...t actuate the alarm The alarm test key does not function when the power switch of the freezer is off 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 Noise The freezer is not installed on the sturdy floor There is anything touching the frame The freezer is not leveled with the leveling feet It is the immediately after...

Page 22: ...ide battery 1 Turn off the power switch battery switch and disconnect the power supply plug 2 As shown in the Fig 2 remove four 4 fixing screws on the side cover and remove the side cover 3 Remove two 2 and loose one 1 fixing screws on the control box to remove the control box cover Fig 3 4 Remove two 2 screw fixing the fixture securing the battery and then disconnect the connector Fig 4 Handling ...

Page 23: ...e 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 Label indication is obliged to comply with Taiwanese battery regulation 廢電池請回收 ...

Page 24: ...spose of them correctly at your local community waste collection recycling centre Please help us to conserve the environment we live in German Für EU Staaten Das Symbol und das erwähnte Wiederverwertungssystem gelten nur für die Länder der EU und nicht für andere Länder oder Gebiete in der Welt Die Produkte von SANYO werden aus hochwertigen Materialien und Komponenten gefertigt die sich wieder ver...

Page 25: ...u éliminées de manière inappropriée peuvent s avérer potentiellement dangereuses pour la santé humaine et pour l environnement Cependant ces matières sont nécessaires au bon fonctionnement de votre appareil ou de votre machine Pour cette raison il vous est demandé de ne pas vous débarrasser de votre appareil ou machine usagé avec vos ordures ménagères Spanish PARA USUARIOS DE LA UNION EUROPEA El s...

Page 26: ...em recolha de lixo local Por favor ajude nos a conservar o ambiente Italian PER UTENTI UE Il simbolo e i sistemi di riciclaggio descritti di seguito si applicano esclusivamente ai paesi dell UE Questo prodotto SANYO è stato progettato e realizzato con materiali e componenti di elevata qualità che possono essere riciclati e o riutilizzati Il simbolo di riciclaggio mostrato di seguito indica che i d...

Page 27: ...bij uw plaatselijk afvalinzameling recyclingcentrum in uw buurt Help ons het milieu waarin wij leven in stand te houden Swedish FÖR ANVÄNDARE INOM EU Den symbolmärkning och de återvinningssystem som beskrivs här nedan gäller länder inom EU och gäller inte länder i någon annan del av världen Din SANYO produkt har konstruerats och tillverkats med delar och material av hög kvalitet som kan återvinnas...

Page 28: ...on the rear bottom of the cartridge Set the hole on the recording chart in the cog of the chart driving assembly and feed the recording chart in the direction of the arrow by driving the cog wheel Fig 3 4 Set the recording chart according to the mark of day and time 5 When mounting lay down the cartridge first and push into the mounting position with the groove set a the projection on the position...

Page 29: ...for accurate recording The recording pen is packed together with the chart 1 Let down the penholder lever then pull out the cartridge from the mounted position 2 Replace the recording pen 3 Mount the cartridge into place 4 Lift up the penholder lever and make sure that the recording pen point touches the recording chart Note Turn off the back up switch when the freezer operation is stopped or the ...

Page 30: ...nnect the liquid CO2 cylinder to the joint of the back up system For this setting consult with a qualified gas supplier or Sanyo sales representative agent 2 After setting the liquid CO2 cylinder operate the freezer until the chamber temperature reaches the required level 3 Set the warning indicator of the temperature recorder at the temperature higher than 70o C The back up system is operated con...

Page 31: ... DC 30 V 2 A Battery For power failure alarm Nickel metal hydride battery DC 6 V 1100 mAh Auto recharge 5HR AAC For back up system only for AT type Lead storage battery DC 6 V 4 Ah x 4 pcs Temperature recorder Dry cell driven recording chart for 2 months per roll Cartridge type recording pen Back up system AT type Liquid CO2 Accessories 1 set of key 1 scraper 1 set of key 1 scraper 1 connect tube ...

Page 32: ...0 to 86o C Power source AC 220 V 50 Hz 230 V 50 Hz 240 V 50 Hz Rated power consumption 620 W 650 W 680 W Alarm duration 9 hours for power failure Noise level 49 dB A background noise 20 dB Maximum pressure 1 73 MPa Note The unit with CE mark complies with EC directives 89 336 EEC 93 68 EEC and 73 23 EEC ...

Page 33: ...Contamination of the unit Unit interior Yes No No contamination Yes No Decontaminated Yes No Contaminated Yes No Others 3 Instructions for safe repair maintenance of the unit a The unit is safe to work on Yes No b There is some danger see below Yes No Procedure to be adhered to in order to reduce safety risk indicated in b below Date Signature Address Division Telephone Product name Model Serial n...

Page 34: ...7FB6P10150000 25 September 2008 5 5 Keihan Hondori 2 Chome Moriguchi City Osaka 570 8677 Japan Printed in Japan ...

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