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TROUBLE SHOOTING 

 
If the unit malfunctions, check out the following before calling for service. 
 

The chamber is not cooled at all 
1.

 The circuit breaker of power source is active. 

2.

 The voltage is too low.    In this case, call an electrician. 

3.

 The power switch is not ON. 

4.

 The large amount of articles (load) is stored in the chamber at one time. 

 

The cooling is poor 
1.

 The ambient temperature is too high. 

2.

 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.) 

3.

 The air intake vent is blocked. 

4.

 The condenser filter is clogged.    Always clean the filter when the filter check lamp is lit. 

5.

 The set temperature is not inputted properly. 

6.

 The freezer is not away from the direct sunlight. 

7.

 There is any heating source near the freezer. 

8.

 A rubber cap and insulation for the access port are not set correctly. 

9.

 You put too many unfrozen articles into the freezer compartment. 

 

Alarm test key cannot actuate the alarm 

The alarm is activated only when the power switch is ON. 

1.

 The nickel-metal-hydride battery has been discharged entirely.    In this case, operate the freezer for 

about 3 hours and depress the alarm test key again.  Entirely discharged cell requires about 2 days’ 
operation of the freezer. 

2.

 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 
1.

 The freezer is not installed on the sturdy floor. 

2.

 The freezer is not leveled with the leveling feet. 

3.

 There is anything touching the frame. 

4.

 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. 
 

Back-up test switch does not operate normally (if the back-up system is provided) 
1.

 The liquid carbon dioxide tank is empty. 

2.

 The valve of the carbon dioxide tank is not opened. 

3.

 The ambient temperature is too high.    In this case, move the tank to a cool location. 

Inquire at liquid carbon dioxide suppliers about its installation, removal, adjustment, and examination. 

 

 

 

 

 

 

 

 

 

 

 

 

Содержание MDF-U5386S

Страница 1: ...from Instruction Manual x If you find out Refer to page ƔƔ 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 ...

Страница 2: ...39 Ultra Low Temperature Freezer INSTRUCTION MANUAL MDF U7386S MDF U7386SC MDF U5386S MDF U5386SC MDF U7386S ...

Страница 3: ...ETTING P 15 ALARMS SAFETY FUNCTIONS P 16 SETTING OF ALARM RESUME TIME P 17 REMOTE ALARM TERMINAL P 18 CHANGE OF COMPRESSOR DELAY TIME P 19 ROUTINE MAINTENANCE Cleaning of cabinet P 20 Cleaning of condenser filter P 20 Defrosting of inside wall P 21 TROUBLESHOOTING P 22 REPLACEMENT OF BATTERY P 23 DISPOSAL OF UNIT P 24 TEMPERATURE RECORDER AT Type P 29 BUCK UP SYSTEM AT Type P 30 INVENTORY RACK P 3...

Страница 4: ...nual 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 Ŷ Contact Sanyo sales representative or agent if any page of the manual is lost or page order is incorrect Ŷ Contact Sanyo sales representative or agent if any point in this manual is unclear or if there are any inaccuracie...

Страница 5: ...ymbol shows 㩷 this symbol means caution 㩷 this symbol means an action is prohibited 㩷 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 eng...

Страница 6: ...power 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 t...

Страница 7: ...function 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 c...

Страница 8: ...ay 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 mo...

Страница 9: ...humidity 80 for temperature up to 31o C decreasing linearly to 50 relative humidity at 40o C 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 Categories Overvoltage Categories II For mains supply the minimum and normal category is II Ŷ Pollution degree 2 ...

Страница 10: ...47 8 FREEZER COMPONENTS 7 1 5 3 11 14 inside 13 4 2 10 4 inside 8 6 16 17 15 12 9 ...

Страница 11: ...annot contact with the floor 9 Leveling foot The height of the freezer can be adjusted by this screw type foot Keep the unit in level at the installation 10 Fixture on back side 2 fixtures serve as spacers between the cabinet and wall and also serve as hooks to fix the unit See page 12 Installation 11 Air intake vent grille Do not block this vent to keep the proper cooling performance 12 Power swi...

Страница 12: ... 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 and alarm resume time Refer to page 15 and 17 for details respectively 5 Digital temperature indicator This indicator shows the present chamber temperature or set temperature ...

Страница 13: ...ong 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 㩵 A location not prone to high humidity WARNING Do not use the unit outdoors Current leakage or ...

Страница 14: ...cloth 2 Adjust the leveling foot Extend the leveling feet by rotating them counterclockwise to contact them to the floor Ensure the unit is level Fig 1 3 Fix 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 4 Ground earth WARNING Use a power supply outlet with ground earth to prevent electric shock If the power supply...

Страница 15: ...switch is ON 4 The audible alarm may 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 back up system optional component if it is installed 8 Check that the alarm lamp lights and the buzzer sounds by pr...

Страница 16: ...urns 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 50o C to 90o C the guaranteed temperature when there is no load is 85o 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 set...

Страница 17: ...it is flashed 3 Press numerical value shift key and scroll the figure to 1 The first digit is flashed 4 Press SET key SET The first digit is flashed When pressed the figure of settable digit changes 5 Scroll the figure to 005 by using digit shift key and numerical value shift key When pressed the changeable digit moves 6 Press SET key SET Alarm temperature is memorized and the current chamber temp...

Страница 18: ...t keeps continuous running If the thermal sensor is short circuited ALARM lamp is flashed E02 and chamber temp are displayed alternately Intermittent tone Remote alarm Unit keeps continuous running If the cascade sensor is disconnected ALARM lamp is flashed E03 and chamber temp are displayed alternately Intermittent tone Remote alarm If the cascade sensor is short circuited ALARM lamp is flashed E...

Страница 19: ...nd numerical value shift key When pressed the figure of settable digit changes 4 Press SET key SET The current reset time is displayed The middle 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 current chamber temperature is displayed The settable alarm resume time is ...

Страница 20: ...e alarm is outputted from this terminal Contact capacity is DC 30V 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 MAX DC30V 2A ...

Страница 21: ...e for delay time change from 2 minutes to 4 minutes Description of operation Key operated Indication after operation 1 The current chamber temperature is displayed 2 Press numerical value shift key for 5 seconds The first digit is flashed 3 Set the figure to F05 with the numerical value shift key When pressed the figure of settable digit changes 4 Press SET key SET The current delay time is displa...

Страница 22: ... accessories with a dry cloth 㩵 Never pour water onto or into the unit Doing so can damage the electric insulation and cause failure 㩵 The compressor and other mechanical part are completely sealed This unit requires absolutely no lubrication 㩵 There is a fan behind the compressor so be very careful if you stick your hand into this part of the unit Cleaning of condenser filter This unit is provide...

Страница 23: ...f 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 w...

Страница 24: ...m test key cannot actuate the alarm The alarm is activated only when the power switch is ON 1 The nickel metal hydride battery has been discharged entirely In this case operate the freezer for about 3 hours and depress the alarm test key again Entirely discharged cell requires about 2 days operation of the freezer 2 When only the buzzer or only the alarm is actuated by the alarm test key the unact...

Страница 25: ...o prevent the electric shock 2 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 mounti...

Страница 26: ...he 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 䋪Label indication is obliged to comply with Taiwanese battery regulation ᑜ㔚ᳰ㩷 ᡴ㩷 ...

Страница 27: ...se 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 können Dieses Symbol bedeutet daß elektrische und elektronische Geräte am Ende ihrer Nutzungsdauer von Hausmüll getrennt entsorgt werden sollen Bitte entsorgen Sie dieses Gerät bei Ihrer örtlichen ...

Страница 28: ...e 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 Los productos SANYO están diseñados y fabricados co...

Страница 29: ...s de recolha separados para produtos eléctricos e electrónicos usados Por favor ajude nos a conservar o ambiente em que vivemos Italian Il vostro prodotto SANYO è stato costruito da materiali e componenti di alta qualità che sono riutilizzabili o riciclabili Prodotti elettrici ed elettronici portando questo simbolo alla fine dell uso devono essere smaltiti separatamente dai rifiuti casalinghi Vi p...

Страница 30: ...ktronische apparatuur bij de daarvoor wettelijke instanties aangeboden Alstublieft help allen mee om het milieu te beschermen Swedish Din SANYO produkt är designad och tillverkad av material och komponenter med hög kvalitet som kan återvinnas och återanvändas Denna symbol betyder att elektriska och elektroniska produkter efter slutanvändande skall sorteras och lämnas separat från Ditt hushållsavfa...

Страница 31: ...t side of the base compartment 5 Take out the recorder sensor from the guide pipe at the back side and pass the sensor to the chamber through the access port Fig 5 6 Attach the recorder sensor on the sensor cover with the enclosed clips Seal the sensor port with a silicon and replace the recorder sensor cover Fix the cover to the inside wall Fig 6 7 Remove the connector cover Connect the recorder ...

Страница 32: ...p system CVK UB2 which is available as 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 Press...

Страница 33: ... 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 Shelf stopper NO 8 under the second screw from the top No 3 under the ffifth screw from the top No 2 under the third screw from the bottom IR 220U MDF U5386SC ...

Страница 34: ...p alarm Low temp alarm Power failure alarm Filter check Battery alarm Remote alarm contact Allowable contact capacity DC 30V 2A Battery Nickel metal hydride battery DC6V 1100mAh Auto recharge Accessories 1 set of key 1 scraper Weight 315 kg 320 kg Voltage booster None Built in Optional component Inventory rack IR 220U Automatic temperature recorder MTR G85 Back up system CVK UB2 LCO2 Note Design o...

Страница 35: ...p alarm Low temp alarm Power failure alarm Filter check Battery alarm Remote alarm contact Allowable contact capacity DC 30V 2A Battery Nickel metal hydride battery DC6V 1100mAh Auto recharge Accessories 1 set of key 1 scraper Weight 355 kg 360 kg Voltage booster None Built in Optional component Inventory rack IR 220U Automatic temperature recorder MTR G85 Back up system CVK UB2 LCO2 Note Design o...

Страница 36: ...unit Unit interior No contamination Decontaminated Contaminated Others 3 Instructions for safe repair maintenance of the unit a The unit is safe to work on b There is some danger see below 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 freezer Pl...

Страница 37: ...JK1184 200B ...

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