Sanyo MDF-U5486S User's Manual
Contents
1. To operate this unit properly and to obtain maximum performance install the unit in a location with the following conditions m A location not subjected to direct 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 result2. 57 SETTING OF ALARM RESUME TIME The alarm buzzer is silenced by pressing alarm buzzer stop key BUZZER on the control panel during alarm condition A remote alarm is continuing the operation 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 set in 30 minutes at the factory Table 5 Setting procedure for alarm resuming time change from 30 minutes to 20 minutes of operation Key operated Indication after operation The current chamber temperature is a displayed A Press digit shift key for 5 seconds The first digit is flashed F J Set the figure to F25 with the digit shift key and numerical value shift P mes pressed the figure of settable key digit changes A Press sepka SET The current resume time is displayed d The second digit is flashed 5 Set the figure to 020 with the When pressed the figure of settable numerical value shift key digit changes The setting is memorized and Press set key SET the current chamber temperature is 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 t
3. contamination Yes _INo Decontaminated Yes Contaminated lYes 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 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 Please decontaminate the unit yourself before calling the service engineer 4 32 SANYO SANYO Electric Co Ltd Printed in Japan
4. 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 7 After cleaning the chamber and inner door replace the inner door and start up the unit according to the procedure on page 13 8 Put back the articles into the sufficiently cooled freezer compartment 9 Turn on the back up system if it is provided 63 ROUTINE MAINTENANCE Cleaning of air intake port The cap of the left side is turned counterclockwise Counterclockwise direction and this product is removed and the outer air is adopted into the chamber and it opens a outer door Therefore frost is easy to be settled around the air intake port inside the chamber Clean it in the case shown below Check Remedy When frost and ice can be seen in the port of the air in
5. High temp alarm Low temp alarm Power failure alarm Filter check Battery check Fan motor check Allowable contact capacity 30 V DC 2 Nickel metal hydride battery 6 V DC 1100 mAh Auto recharge 1 set of key 1 scraper 1 stick for air intake port cleaning 315 kg Inventory rack IR 220U Temperature recorder Mounting kit MTR G85 MTR 85H MDF S83085 Back up system CVK UB2 LCO gt Interface board MTR 480 LAN interface board MTR L03 Data acquisition system MTR 5000 Design or specifications will be subject to change without notice Power source of the automatic temperature recorder shall be 220 V 29 2712 SPECIFICATIONS Shelf Alarm Optional component Note Ultra Low Temperature Freezer W1130 x D875 x H1990 mm W870 x D600 x H1280 mm 668 L Painted steel MDF U7486S Painted steel Painted steel ABS resin panel with stainless frame 2 doors Stainless steel 3 shelves adjustable W848 x D533 mm Load 50 kg shelf 17 mm diameter 2 locations back bottom left corner Rigid polyurethane foamed in place Hermetic type Output 1100 W high stage side 1100 W low stage side Tube on sheet type Fin and tube type high stage side Shell and tube type low stage side R 404A high stage side R 508B low stage side Microcomputer control system Digital display Platinum resistance Pt 1000 High temp alarm Low temp alarm Power failure alarm Filter check Battery check Fan mot
6. The remote alarm is also operated 20915 displayed on the digital temperature indicator if the battery switch is OFF Make sure to turn on the battery switch 8 After confirming the above you can put articles into the freezer chamber in a small batch to prevent the temperature rise 9 An alarm function is to work normally or push and confirm an alarm test key the condition that a battery switch is on It is normal if alarm lamp blinking remote alarm operation and a buzzer ring Operation after power failure The set value is memorized by nonvolatile memory Accordingly the freezer resumes the operation with setting before power failure When the freezer is recovered from power failure with the chamber temperature higher than the preset temperature then the high temperature alarm is activated and the buzzer sounds and the remote alarm is also activated Please push the buzzer stop key BUZZER to silence buzzer and take appropriate actions if needed 55 CHAMBER 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 The curre
7. Turn off the power switch if provided and disconnect the power supply to the unit prior to any repair 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 46 PRECAUTIONS FOR SAFE OPERATION NWARNING Ensure you do not inhale or consume medication or aerosols from around the unit at the time of maintenance These be harmful to your health S 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 S Do not use the supply cord if its plug is loose Such supply cord may cause fire or electric shock 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 Q0 When removing the plug from the power supply outlet grip the power supply plug not the cord Pulling the cord may result in electr
8. a door is closed and opened soon a door is easy to open LZ amp with the following process 1 Turn the cap of the left side counterclockwise and remove it x 2 Put the air into the chamber from about ten for twenty seconds Cap and open a door 3 Close a cap if a door opens A door may not open in the above method when there are frost and ice in the air intake port In that case open a cap and investigate the matter whether there is no frost inside the air intake port Remove frost inside the air intake port in the air intake port cleaning stick of the accessories when there is frost Clean a air intake port every month even when there is no frost inside the air intake port Refer to page 22 N WARNING For removing the frost of the air intake port do not use a tool with sharp edge such as a knife or a screw driver SETTING 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 3 minutes at the factory Note The setting range for delay time is between 3 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 dela
9. and chamber temp Intermittent tone Remote alarm displayed alternately If the cascade sensor is short Ir ler E04 and chamber temp Intermittent tone Remote alarm Sep car acronis displayed alternately y Alarm lamp is flashed If the filter sensor is disconnected E05 and chamber temp Intermittent tone Remote alarm displayed alternately Alarm lamp is flashed If the filter sensor is short circuited E06 and chamber temp Intermittent tone Remote alarm displayed alternately Alarm lamp is flashed If the ambient temperature sensor is E07 and chamber temp Intermittent tone Remote alarm disconnected displayed alternately Alarm lamp is flashed If the ambient temperature sensor is Mn E08 and chamber temp are Intermittent tone Remote alarm short circuited displayed alternately Battery switch When the battery switch is OFF during Alarm lamp is flashed check alarm test 209 is flashed Remote alarm Intermittent tone Compressor of high stage side stops Low temperature alarm Condenser temp In the event of failure of fan motor for E10 and chamber temp abnormality cooling the compressor are displayed alternately Note When the operation is started in high ambient temperature the filter lamp is sometimes flashed 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 se
10. 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 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 x55 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 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 of
11. the condenser filter When this lamp lights clean the condenser filter following the procedure on page 20 5 Numerical value shift key 2 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 alarm resume time compressor delay time and door alarm delay time Refer to page 15 and 16 for details respectively 6 Digit shift key P 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 7 Set key SET Temperature set 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 8 Alarm test key ALARM TEST To check the alarm system Pressing this key with the battery switch ON gets the alarm lamp to flash the remote alarm to operate and the buzzer to sound 9 Alarm 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 52 10 INSTALLATION SITE 11
12. SANYO INSTRUCTION MANUAL MDF U 7486S MDF U7486SC Ultra Low Temperature Freezer MDF U 24865 MDF U5486SC MDF U7486S CONTENTS INTRODUCTION P 2 PRECAUTIONS FOR SAFE OPERATION P 3 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 CHAMBER TEMERATURE 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 AIR INTAKE PORT P 17 CHANGE OF COMPRESSOR DELAY TIME P 18 ALARMS amp SAFETY FUNCTIONS P 19 ROUTINE MAINTENANCE Cleaning of cabinet P 20 Cleaning of condenser filter P 20 Defrosting of inside wall P 21 Cleaning of air intake port P 22 TROUBLESHOOTING P 23 DISPOSAL OF UNIT P 24 Recycle of battery P 24 DISPOSAL OF BATTERY P 25 BACK UP SYSTEM OPTION P 26 TEMPERATURE RECORDER OPTION P 27 Installation of MTR G85 27 INTERFACE BOARD OPTION Pf Installation of MTR 480 MTR LO3 p 27 INVENTORY RACK OPTION P 28 SPECIFICATIONS MDF U5486S SC 29 SPECIFICATIONS MDF U7486S SC P 30 PERFORMANCE P 31 SAFETY CHECK SHEET P 32 43 INTRODUCTION m Read this manual 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
13. ep this manual in a place accessible to users of this unit Some warning and or caution labels are attached on the unit Following shows the description of such labels This label is 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 F This symbol means attention or refer to document e This symbol means earth do This symbol means power switch ON This symbol means power switch OFF 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 45 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 f the floor is not strong enough or the installation site is not adequate this may result i
14. f the panels with a dry 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 v Leveling foot 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 Fixture NWARNING 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 dr 12 START UP OF UNIT 13 Follow the procedures for the initial and consequent operations of the unit 1 Turn off the switch of the back up system optional component if it is installed 2 Connect the power supply cord to the dedicated outlet having appropriate rating with the chamber empty and turn on the power switch on the freezer 3 Turn on the battery switch 4 Set the desired chamber temperature See page 14 for the temperature setting 5 Check that the chamber temperature reaches the desired temperature 6 Turn on the switch of back up system optional component if it is installed 7 Make sure that the alarm lamp blinks and the buzzer sounds by pressing the alarm test key ALARM TEST
15. ic shock or fire by short circuit Disconnect the power supply plug before moving the unit care not to damage the power cord damaged cord may cause electric shock or fire 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 If the unit is to be stored unused in an unsupervised area for an extended period ensure that o children do not have access and that doors cannot be closed completely The disposal of the unit should be accomplished by appropriate personnel Remove doors to o prevent accidents such as suffocation S Do not put the packing plastic bag within reach of children as suffocation may result 47 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 Check the setting when starting up of operation after power failure or turning off of power switch The stored i
16. ical value shift key The first digit is flashed and scroll the figure to 1 Press set key The first digit is flashed Wh he fi f Scroll the figure to 005 by using EE the figure of settable digit shift key and numerical value EL w pressed the changeable digit shift key gt veni Alarm temperature is memorized and Press set key the current chamber temperature is displayed Table 4 Procedure for setting low temperature alarm Description of operation Key operated Indication after operation The current chamber temperature is H displayed Press numerical value shift key for Press numerical vale shift key The first diait is flashed FD and scroll the figure to 2 9 The first digit is flashed Wh he fi f Scroll the figure to 05 by using etl pressed nrw digit changes 5 digit shift key and numerical value U When pressed the changeable digit shift key moves Alarm temperature is memorized and Press set key the current chamber temperature is displayed The 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
17. idered These may include atmosphere monitoring and warning devices This freezer can be provided with a back up 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 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 68 26 TEMPERATURE RECORDER OPTION Contact Sanyo sales representative or agent for the attachment of an automatic temperature recorder INTERFACE BOARD OPTION Contact Sanyo sales representative or agent for the attachment of a interface board Note When a data transmitting function to the personal computer is done an interface board MTR 480 option goods and communication cable of 9 pin Dsub cross type for RS232C are necessary The connecting cable between the PC and MTR L03 terminal is not enclosed Provide a cross type cable of less than 100 m length having a pin plug INVENTORY RACK OPTION The optiona
18. ightly The inner door is not installed correctly The set temperature in the controller is not set properly The freezer is in the direct sunlight There is any heating source near the freezer A rubber cap and insulation are not set correctly You put too many unfrozen articles into the chamber Alarm test key cannot The alarm is activated only when the power switch is ON actuate the alarm 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 Note 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 If the unit malfunctions check out the following before calling for service 165 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 as suffocation Recycle of battery LAY Ni MH 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 Decontamination of unit Before disposal of unit decon
19. ime 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 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 58 16 REMOTE ALARM TERMINAL 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 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 buzzer is silenced by pressing alarm buzzer stop key BUZZER on the control panel during alarm condition A remote alarm is continuing the operation The buzzer will be activated again after certain suspension if the alarm condition is continued The alarm is actuated when the power supply plug is disconnected from the outlet or the power switch is OFF REMOTE ALARM N C COM N O MAX DC30V 2A AIR INTAKE PORT When a door is closed and opened soon a door does not sometimes open this product The warm air which went into the chamber is cooled down rapidly and this is because air inside the chamber contracted When
20. l 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 fi lI n P lI n fi 11 j FORO i ORDRE n f Un m m VL JI i Shelf support NO 8 under the second screw from the top No 3 under the ffifth screw from the top E S S V V V 27 2 S No 2 under the third screw from the bottom Fa ayaa a ae A NYNNE N ee uy 70 SPECIFICATIONS Shelf Alarm Optional component Note Ultra Low Temperature Freezer W890 x D870 x H1990 mm W630 x D600 x H1280 mm 483 L Painted steel MDF U54868 Painted steel Painted steel ABS resin panel with stainless frame 2 doors Stainless steel 3 shelves adjustable W608 x D535 mm Load 50 kg shelf 17 mm diameter 2 locations back bottom left corner Rigid polyurethane foamed in place Hermetic type Output 1100 W high stage side 1100 W low stage side Tube on sheet type Fin and tube type high stage side Shell and tube type low stage side R 404A high stage side R 508B low stage side Microcomputer control system Digital display Platinum resistance Pt 1000
21. leaning 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 part are completely sealed This unit requires absolutely no lubrication 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 lamp on the control panel Clean the condenser filter when this lamp lights Clean the filter once a month even if the lamp is not on since a clogged condenser filter may cause shorter compressor life as well as the poor cooling Clean the condenser filter by the procedure below 1 Open the grille by pulling it to you as shown in the Condenser figure filter 2 Take out the condenser filter 3 Wash the condenser filter with water 4 Replace the condenser filter and the grille 5 Check that the filter lamp is off in the event the lamp was ON NWARNING Do not touch the condenser directly when the condenser filter is removed for cleaning This may cause injury by hot surface 62 20 ROUTINE MAINTENANCE 21 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 magnetic door gasket which may cause poor cooling Remove the
22. n in Table 7 and also self diagnostic functions Table 7 Alarms and safety functions Safety functions 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 than the temperature at which the low temperature alarm is activated Power failure alarm Unite Alarm lamp is flashed Intermittent tone Remote alarm disconnected Filter alarm When the condenser filter is clogged Filter lamp lights Intermittent tone tone When about 3 years has passed with Fari mOtor hB eck When about 6 years has passed with Battery check lamp power switch ON flashes When there is no key pressing in Chamber temperature is Finishing of each Auto return each set mode for 90 seconds displayed set mode Key lock When the key lock is ON nange Olseng Is disable Alarm lamp is flashed Remote alarm If the thermal sensor is disconnected E01 and chamber temp are Intermittent tone Unit keeps continuous 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 displayed alternately running Alarm lamp is flashed If the cascade sensor is disconnected E03
23. n injury from the unit falling or tipping over 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 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 e 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 Connect the unit to a power source as indicated on the rating label attached to the unit Use o 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 may cause bad effect on your health or environment e
24. nt chamber temperature is Turn the power switch ON displayed a Press set key ser The second digit is flashed When pressed the figure of settable Set to 75 with the numerical value digit changes shift key and digit shift key Se pressed the settable digit gt shifted Set temperature is memorized and the 4 Press set key current chamber temperature is displayed 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 when there is no load is 85 C when the ambient temperature is 30 C 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 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 in OFF at the factory Display Key lock is OFF Enable to change of temperature setting Key lock is ON Disable to change of temperature setting Table 2 Procedure for key lock setting change from key lock OFF to key lock ON mE Description of operation Key operated Indication after operation The cur
25. ocked 12 Control panel Used for temperature setting and indication of operating status is displayed on the panel See page 10 for details 13 Access port rear and bottom This is used for leading a cable and sensor of a measuring equipment or nozzle of back up system to chamber 14 Air intake port After closing the outer door if used to open soon See page 17 15 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 16 Power switch This is for turning ON OFF the power to the unit ON OFF 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 Battery 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 19 Fuse 125 V 3 15 A Normal blow type Eb FREEZER COMPONENTS 1 Digital temperature indicator This indicator shows the present chamber temperature or set temperature 2 Battery check lamp BATTERY This lamp flickers to recommend the battery replacement For the replacement consult Sanyo sales representative or agent 3 Alarm lamp ALARM This lamp is flashed during alarm condition 4 Filter lamp FILTER This lamp lights when the excessive dust is accumulated on
26. or check Allowable contact capacity 30 V DC 2 A Nickel metal hydride battery 6 V DC 1100 mAh Auto recharge 1 set of key 1 scraper 1 stick for air intake port cleaning 360 kg Inventory rack IR 220U Temperature recorder Mounting kit MTR G85 MTR 85H MDF S3085 Back up system CVK UB2 LCO Interface board MTR 480 LAN interface board MTR L03 Data acquisition system MTR 5000 Design or specifications will be subject to change without notice Power source of the automatic temperature recorder shall be 220 V 72 30 PERFORMANCE MDF U5486SC for U S A only MDF U74868C for U S A only Cooling performance Temperature control range Power source 86 C at the center of the chamber ambient temperature 30 C no load 50 C to 86 C ambient temperature 30 C no load 220 V 60 Hz Rated power consumption 1180 W 1210 W Noise level 51 dB A background noise 20 dB 2 7 MPa Note The unit with CE mark complies with EC directives 89 336 EEC 275 31 A CAUTION Please fill in this form before servicing Hand over this form to the service engineer to keep for his and your safety oafety check sheet 1 Freezer contents Yes No Risk of infection Yes _INo Risk of toxicity Yes Risk from radioactive sources Yes No List all potentially hazardous materials that have been stored in this unit Notes 2 Contamination of the unit Unit interior Yes
27. refer to it as necessary m he 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 NCAUTION SANYO guarantees the product under certain warranty conditions SANYO in no way shall be responsible for any loss of content or damage of content pps r PRECAUTIONS FOR SAFE OPERATION It is imperative that the user complies with this manual as it contains important safety advice ltems 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 O this symbol means an action is prohibited nis symbol means an instruction must be followed Be sure to ke
28. rent chamber temperature is _ displayed E Press digit shift key for 5 seconds The first digit is flashed Eurus amp puce and scroll the figure to 1 digit Changes The key lock is set to ON Pm ser The current chamber temperature is displayed The 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 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 according 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 40 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 810 displayed Press numerical value shift key for bom seconds The first digit is flashed 00 Press numer
29. take port The pipe of the air intake port is thrust with a stick for air intake port cleaning of the accessories and frost is taken An outside door does not The pipe of the air intake port is thrust with a stick for air intake port open even if the cap of the cleaning of the accessories and frost is taken air intake port is opened Frost and ice can be seen in Frost inside the chamber and ice are taken with Hera of the the chamber accessories 2 Stick for air intake port cleaning Accessory N WARNING For removing the frost of the release port do not use a tool with sharp edge such as a knife or a screw driver 64 22 TROUBLE SHOOTING 29 If the unit malfunctions check out the following before calling for service Malfunction Check Remedy The chamber is not cooled The circuit breaker of power source is active The voltage is too low In this case call an electrician The power is not supplied The breaker is free The large amount of articles load is stored in the chamber at one at all time The cooling is poor The ambient temperature is too high he 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 is blocked The condenser filter is clogged Always clean the filter when the filter check lamp is lit The door is not shut t
30. taminate the unit yourself B 24 DISPOSAL OF BATTERY 25 Location of a nickel metal 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 Disposal 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 6 screws fixing the side cover with a screw driver and remove the side cover 3 Remove 5 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 Switch cover y r Electrical box Electrical box cover Fig 4 mounting plate 67 BACK UP SYSTEM OPTION 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 cons
31. tely 2 Inner door The operation of the inner door should be quick to minimize the temperature rise in chamber Lock the inner door latch completely when the inner door is closed The inner door is removable for cleaning or defrosting See page 21 Routine maintenance 3 Inner door latch Always lock the inner door latch when the inner door is closed 4 Outer door latch Always lock the latch when the outer door is closed 5 Magnetic door gasket This provides a tight door seal and prevents cold air leak Keep clean 6 Air intake vent grille not block this vent to keep the proper cooling performance 7 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 8 Leveling foot These are screw bolts used to install and fix the unit Adjust the height of the leveling feet by turning the screw bolts until 2 front casters are away from the floor 9 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 20 Routine maintenance for the cleaning 10 Space for temperature recorder A temperature recorder optional component can be attached here See page 27 Temperature recorder 11 Lock Turn clockwise to 180 with a key and the outer door is securely l
32. tems may be damaged due to the change of setting Be careful not to tip over the unit during movement to prevent damage or injury o Prepare a safety check sheet when you request any repair or maintenance for the safety of service personnel 48 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 m 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 1096 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 m Pollution degree 2 in accordance with IEC 60664 49 FREEZER COMPONENTS 13 14 c ce q 1 9 inside 10 11 AWAY URRY WY NN M QU KARR YMAN NNN ANNA Power cord MRNA RY RR OMAK MK KY NYRR RMA KK A MANNA Rear side 50 FREEZER COMPONENTS 1 Outer door To open the outer door grip the handle On closing lock the outer door latch comple
33. tting before power failure as the chamber temperature setting and alarm temperature setting are memorized in the nonvolatile memory 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 representative or agent at the time of replacement of the battery for recycling Fan motors are expendable supplies Replace them for about every 6 years Contact Sanyo sales representative or agent at the time of replacement of the fan motor The chamber temperature is displayed for 5 seconds by pressing alarm buzzer stop key BUZZER during power failure alarm The alarm lamp keeps flashing 61 19 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 medication 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 m Use a dry cloth to wipe off small amounts of dirt on the outside and inside of the unit and accessories f 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 c
34. y time when the capacity of power source is adequate Table 6 Setting procedure for delay time change from 3 minutes to 4 minutes n of operation Key operated Indication after operation The current chamber temperature is E H displayed E numerical value key for The first digit is flashed 0 9 seconds 3 Set the figure to F05 with the When pressed the figure of settable FOS numerical value shift key digit changes The current delay time is displayed Press set key pu 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 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 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 60 18 ALARMS amp SAFETY FUNCTIONS This unit has the alarms and safety functions show
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