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      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 8.    Changing procedure 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. 

Press numerical value shift key for 

5 seconds. 

 

 

The first digit is flashed. 

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 displayed. 

The first digit is flashed. 

Set the figure to 004 with the 

numerical value shift key. 

 

When pressed, the figure of the first 
digit changes. 

6  Press SET key. 

SET 

The delay time is memorized and   
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 

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. 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary of Contents for MDF-U5386S

Page 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 ...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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 ...

Page 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...

Page 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 ...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 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 ...

Page 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...

Page 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 ...

Page 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...

Page 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...

Page 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...

Page 37: ...JK1184 200B ...

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