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   PRECAUTIONS FOR SAFE OPERATION

 

 

It is imperative that the user complies with this manual as it contains 
important safety advice.

 

 

Items and procedures are described so that you can use this unit correctly and safely.   

If the precautions advised are followed, this will prevent possible injury to the user and 

any other person. 

 

Precautions are illustrated in the following way: 

 
 

WARNING

 

 
Failure to observe WARNING signs could result in a hazard to personnel 
possibly resulting in serious injury or death.

 

 
 
 

CAUTION

 

 
Failure to observe CAUTION signs could result in injury to personnel and 
damage to the unit and associated property.

 

 
 

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 engineer or a service personnel only. 

 

 

 

 

 

Summary of Contents for MDF-1155

Page 1: ...MDF 1155 MDF 1155ATN Ultra Low Temperature Freezer INSTRUCTION MANUAL ...

Page 2: ...naccuracies SANYO Electric Biomedical Co Ltd All rights reserved Printed in Japan CONTENTS PRECAUTIONS FOR SAFE OPERATION P 2 CAUTIONS FOR USAGE P 6 ENVIRONMENTAL CONDITIONS P 7 NAME AND FUNCTION OF PARTS P 8 INSTALLATION P 11 START UP OF UNIT P 12 OPERATING INSTRUCTIONS P 13 TEMPERATURE RECORDER P 15 MAINTENANCE P 16 TROUBLE SHOOTING P 17 DISPOSAL OF UNIT P 18 RECYCLE OF NICKEL CADMIUM BATTERY P ...

Page 3: ...t in a hazard to personnel possibly resulting in serious injury or death CAUTION Failure to observe CAUTION signs could result in injury to personnel and damage to the unit and associated property 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 ...

Page 4: ... corrosion Make sure a dedicated power source is used as indicated on the rating label attached to the unit Make sure to remove dust from the power supply plug before inserting in a power source A dusty plug or improper insertion may cause a hazard Use a power supply outlet with ground earth to prevent electric shock If the power supply outlet is not grounded it will be necessary to install a grou...

Page 5: ...hould be accomplished by appropriate personnel Always remove doors to prevent accidents such as suffocation Make sure to connect a carbon dioxide cylinder or a nitrogen gas cylinder to this unit correctly Incorrect connection may cause explosion or fire Make sure to prepare a safety check sheet when you request any repair or maintenance for the safety of service personnel Select a level and sturdy...

Page 6: ...reful not to damage the lines as this could cause a breakdown Also do not make a hole in the wall for installation of attachments Always hold the handle when closing the door This will reduce the likelihood of a trapped finger Do not lean on the door This may cause injury if the unit tips over Check the filter mentioned in this manual and clean it as necessary A dusty filter may cause temperature ...

Page 7: ...an indication of a malfunction 7 This unit is provided with the filter check lamp If the filter check lamp is flashed clean the condenser filter Refer to page 16 Cleaning of condenser filter A clogged filter may cause poor cooling and compressor trouble 8 When connecting a liquid N2 tank for the back up system of ATN type freezer consult your dealer of a neighboring engineering shop of high pressu...

Page 8: ...ration of the unit is stopped by this breaker contact with the dealer or the service station after disconnecting the power supply plug ENVIRONMENTAL CONDITIONS This equipment is designed to be safe at least under the following conditions based on the IEC 1010 1 1 Indoor use 2 Altitude up to 2000 m 3 Ambient temperature 5o C to 40o C 4 Maximum relative humidity 80 for temperature up to 31o C decrea...

Page 9: ...8 NAME AND FUNCTION OF PARTS MDF 1155ATN 1 3 2 4 5 6 7 9 8 10 11 12 13 14 16 17 15 ...

Page 10: ... By pulling down this grille you can clean a clogged condenser filter 9 Exhaust air vent Be careful not to block this 10 Pocket Use for instruction manual notebook or gloves 11 Control cover lock 12 Control panel cover 13 Control panel Refer to page 10 14 Digital temperature indicator This indicator shows the present temperature or setting temperature 15 Temperature recorder ATN type 16 Remote ala...

Page 11: ...ing temperature is displayed When the desired temperature is set this key should be pressed SV side When no key is pressed within 1 minute displayed number won t be memorized setting will be over and indicator will display the present value 8 Digit shift key The digital of the figure displayed for temperature adjustment can be shifted using this key 9 Figure shift key The figure that is displayed ...

Page 12: ...an for further information 7 Clean area Avoid placing the unit where chemicals are stored or gases are produced Also avoid areas where there is a great deal of dust Installation 1 Remove 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 neutral detergent and wipe it up wi...

Page 13: ...recorder Set the alarm at 15o C higher temperature than the freezer compartment When using the back up system set the back up temperature according to page 15 Setting of back up temperature 6 Switch on the remote alarm and back up system switch for ATN type 7 Make sure that the alarm lamp lights and the buzzer sound by pressing the alarm test key 8 In case of operating ATN type make sure that liqu...

Page 14: ... 152o C when the ambient temperature is 30o C When the desired temperature is set this key should be pressed SV side The temperature setting can be done by section 2 and 3 of Table 1 Alarm safety function and self diagnostic function This unit has the alarm and safety functions shown in Table 2 and also self diagnostic function Table 2 Alarm and safety functions Kind of alarm at safety Situation I...

Page 15: ...reezer temperature 4 Switch on the liquid N2 back up This completes the back up system setting 5 Make sure that liquid N2 spouts into the freezing room with the liquid N2 back up test switch 6 This completes the setting of the tank for automatic spouting in case the freezer temperature should match the alarm set temperature Remote alarm terminal The terminal of the remote alarm is installed at rea...

Page 16: ...l out cartridge from the mounted position 2 Reset the battery chamber cover with wire on the bottom left side and take out the cell 3 Set a new cell by turning its anode to this side 4 Shut the cover after exchanging cells Mount the cartridge as before and lay down the penholder Setting of back up temperature 1 There is a red guide on the top of the temperature displayer Adjust the guide with your...

Page 17: ...h the filter check lamp This lamp flickers and the buzzer sounds when the condenser filter is clogged Clean the filter according to the following procedure As a clogged filter may cause poor cooling and compressor trouble clean it once a month 1 The filter fitted to the grille can be removed as shown in the figure 2 Remove the mounting screw securing the grille and pull out the grille 3 Remove the...

Page 18: ...There is anything touching the frame 4 It is the first operation after shutdown 5 High temperature loads this freezer and sometimes causes a noise Accordingly when the temperature lowered the noise ceases Alarm test key cannot actuate the power failure alarm 1 The battery has been discharged entirely In this case operate the freezer for about 3 hours and switch on the alarm test key again Entirely...

Page 19: ...ed in an unsupervised area for an extended period ensure that children do not have access and doors cannot be closed completely The disposal of the unit should be accomplished by appropriate personnel Always remove doors to prevent accidents such as suffocation ...

Page 20: ... a screw driver 3 Remove 2 screw B at the back of the foamed side table assy Fig 2 4 After disconnecting the connector remove the LED cover Then by unscrewing 2 screw C on the top of the foamed side table assy remove the famed side table assy To remove the control box cover unscrew 4 fixing screw D Fig 3 5 Remove 2 screw E fixing the clips securing the battery and then disconnect the connector Fig...

Page 21: ...back up system Lead storage battery 6VDC 4Ah only for ATN type Temperature recorder Dry cell driven Recording chart for 2 months Back up system Liquid N2 1 set of key 2 rubber caps 1 inner lid 1 scraper Accessories 6 recording chart rolls 1 dry cell 2 recording pens cartridge 1 connect tube for back up system Weight 278 kg 285 kg Option Aluminum container MDF 49SC Note Design or specifications wil...

Page 22: ...t 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 Ultra Low Temperature Freezer Model MDF 1155 MDF 1155ATN Serial number Date of Instal...

Page 23: ...7FB6P101258002 18 Nov 2003 Recycled paper CEM SANYO Electric Biomedical Co Ltd 10 15 Hongo 3 Chome Bunkyoku Tokyo 113 8434 Japan Printed in Japan ...

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