Service Manual MDF-137
Contents
1. Front Cooling unit parts _ MDF 137 Compressor FL1568 5P L1568 SP 1 Compressor cord _ _TEB 2 M101 010 03 OQ Rated power supply Single phase 220 240V 50Hz 1 1 ty 310 10m h amp Cooling method air circulation Overload relay 7 _2 003603 _ 1 Starting capacitor NEM GOyF 300VAC _ arene Running capacitor Direct cooling tube on sheet type Dryer Type Charged q ty Capillary tube Resistance O25 MPAG Length L 360mm J Outer diameter OD 18mm 000202005 Inner diameter ID 0 65 mm Condenser 5 0 Natwal convection Wire and tube type 4 lines 40 W440 mm Wire and tube type 1 4 1165 4 0 W440 Frame pipe o 4 76 C1220T Refrigerant R 134a Charged q ty 160 59 Condenser Pre condenser Refrigeration circuits Condenser Frame pipe m lt 0 O O Dryer Pre condenser Capillary tube Compressor Point to evacuate Components on leuia 4 ejdsiq o OL igNo god fejdsiqoros g 29 0 899 API ae ENO ane ENO 0 09000 090 0 8 831 82 40 E Y 44 Tis 9 ESAS ZSMS ISAS S Bi A Lif 5 6 2vd0 i S Wao2. 5 FO6 12 mee F21 F22 F24 F25 F26 F30 F50 Automatically return to chamber temperature display Setting of temperature for high temperature alarm Setting of temperature for low temperature alarm Display of Battery accumulation period Setting of compressor delay time Service code input 384 Temperature Zero calibration Display of temperature in temperature sensor The decimal point is displayed Setting of model code Initialization for non volatile memory Setting of communication ID Setting of communication mode Joint operation for remote alarm and buzzer Setting of alarm resume time Ring Back Display of running rate Display of ROM version Setting of temperature alarm delay time Setting process In chamber temperature display press key for 5seconds to display FOO F01 F02 FO3 FOS FOG FOO Press key to input required function code and press SET key Note Ensure to input service code 384 in prior to use F07 F12 F17 F24 F26 and F30 It is unnecessary to input service code when you use 00 06 F21 F22 F25 Service code 384 is cancelled if you input O00 in F06 or turn the power off It is not functioned In FOO displayed press SET key to return to chamber temperature display Setting of temperature for high temp alarm Setting range is 005 015 Input F01 and press SET key to display 010 Default se
3. Key Lock Function Setting range Setting process Key error tone is emitted 0 or 1 In chamber temperature display press key for 5seconds to enter into Key Lock mode with L_0 display Change the 13 digit and press SET key to memorize the value in non volatile memory 1 Locked 0 Unlocked 3 6 Function mode Setting range Display range Setting process Unacceptable setting range Error code Alarms High temp alarm Low temp alarm E01 E02 E09 0 50 0 59 Note 04 08 13 15 16 18 20 26 29 31 33 49 are unused In chamber temperature display press a key for 5 seconds to enter into Function mode with F00 display Change 17 digit with key and gt gt key When you input a value in unacceptable setting range and press SET key error tone is emitted Temp sensor is disconnected When temp sensor is disconnected E01 50 are displayed alternately Buzzer sounds and remote alarm activates Compressor is turned on Press BUZZER key to stop buzzer sounding Remote alarm keeps activating Temp sensor is short circuited When temp sensor is short circuited E02 and 50 are displayed alternately Buzzer sounds and remote alarm activates Compressor is turned on Press BUZZER key to stop buzzer sounding Remote alarm keeps activating Battery switch is OFF When battery switch is off position or battery is unconnected press ALARM
4. SANYO Service Manual FILE No Biomedical Freezer MDF 137 SANYO Electric Co Ltd Biomedical Business Division SANYO BIOMEDICAL FREEZER yw DD This product does not contain any hazardous substances prohibited by the RoHS Directive You will find RSF mark near the rating plate on the RoHS compliant product N WARNING You are requested to use RoHS compliant parts for maintenance or repair You are requested to use lead free solder SM9910202 Effective models This service manual is effective following models Product code Voltage and Frequency MDF 137 823 016 54 220 240V 50Hz MM Contents 1 Features Specifications Dimensions Structural specifications Performance specifications Control specifications Cooling unit parts Refrigeration circuit Components on PCB Connections on PCB Electric parts Specifications of sensor Wiring diagram Circuit diagram Control specifications Installation of compressor terminal cover Parts layout Test data Pull down amp Pull up temperature Pull down pressure Pull down power consumption Temperature uniformity data 15points measured Amount of power consumption whe
5. oir 1528 uodo CH Vit 08v H LIN OL VNO es Josues duie OL 6 ZNO MHOLLOS 40 Ini ySAS Sf 0 108 ai 1531 330 837206 LSAS SSA SGAS 835 QUYYO8 00 0S0 8 84 5 BAA Re 9 2 40 P 4 Q Q oL Ajddns LNO 11 Connections on Connectors on Temp control PCB Switching power supply To supply the power to PCB 1 12VDC 3 GND Remote alarm terminal Output for remote alarm contact 1 COM Open between 1 and 2 when the 2 N C When power is not supplied power is supplied in normal condition 3 N O When power is not supplied 1 and 2 are connected with remote alarm terminal Temp control relay To turn temp control relay on off 1 12V When temp control relay is ON 2 GND cu Display PCB CN51 To connect with each of switches Display PCB CN52 To connect with each of LED Temp sensor To sense chamber temperature 9 10 Temp sensor Battery 6V To connect with battery for power failure Electric parts 1 Compressor Type FL1568 SP Compressor cord 7FB 2 M101 010 03 Rating 220 240V 50Hz Winding resistance 25 C C R 11 40 C S 19 50 PGROSAT Resistance 25 332 6 6 Q O L relay Type 2 0C36C3 Action to the temp 130 8 orF607 Action
6. ote La B 2 AYYY 310N3H z I 5 w P2 E 3 oy 3 95997 EE t 2529 OE Je C THERE ONG PUN Oxy M 35001 829 2 AS Ta L S Lanes 1 o Y50 0183 210 HE ca r E ee lt 6 50 0186 BO jt LIT E ns a na MOSN35 gM3l z u 95 on 50 0188 14 4 v t diagram ircul 2 19 Control specifications 11111 1 Keys and Switches BUZZER SET DEF ALARM TEST When alarm lamp blinks and buzzer sounds buzzer and remote alarm output Forced to be turned off Buzzer is not turned off during alarm test When alarm lamp blinks and buzzer is turned off buzzer never activates In power failure press the key to display the current temperature for 5 seconds Press once this key to enter into setting mode with 274 digit blinks Press this key again to memorize the value it works as ENTER key In chamber temperature display press this key for 5 seconds to start defrosting In defrosting press this key to have defrosting to the end In defrosting chamber
7. LED digital display 1 increment Display range 50 C 50 C Set temperature 5 15 C changeable Default 10 ALARM lamp blinks and buzzer sounds intermittently with 15 min of delay Remote alarm contact activates and joins with buzzer Set temperature 5 15 C changeable Default 10 C ALARM lamp blinks and buzzer sounds intermittently with 15 min of delay Remote alarm contact activates and joins with buzzer Remote alarm terminal 3P Contact capacity DC30V 2A Max Remote NC COM NO COM alarm Activates during high low temp alarm power failure alarm and Alarm test performed joins with buzzer ALARM lamp blinks buzzer sounds intermittently and remote alarm Power fail contact activates ALARM Alarm lamp BUZZER Alarm buzzer stop key ALARM TEST Alarm test key SET Set key gt Digit shift key Numerical value shift key DEF Defrost key Press gt key for 5 seconds Key Lock LO Unlocked 11 Locked When temp sensor is failed Error code E01 E02 and chamber temp are displayed alternately High temp Low temp Alarms Control panel Self diagnosis Remote alarm contact activates with buzzer sounds When battery switch OFF check is failed in Alarm Test Error code E09 and chamber temp are displayed alternately Breaker switch on left back side F Ceiling
8. 6 or 4 E COM REMOTE ALARM Mee Come Battery SW Pie BRACA ET REMOTE ALARM MAX DU3DV 2 Power SW Terminal for MTR 480 Option Remote alarm Battery SW Battery DP1 is lit in power failure alarm DP2 is lit when compressor is operating Test data All the data are the reference only Pull down amp Pull up Temperture D 5 a e 1 2 220V S e 1 2H 230V 47j1 2H pullup 20 30 40 0 1 2 4 Time hour AT35 C Pull down Pressure e 220V c 230V Ps 220V Ps 230V Pressure MPa 0 1 2 3 4 Time hour 5 Pull down Power consumption 5 ewe input 220V Input 230V 4 Current 220 _ Current 230V 3 5 5 26 2 5 1 A 0 0 1 2 3 4 Time hour Temperature Uniformity data 15points measured All the data are the reference only HIGH MIDDLE LOW 5 W 5 W HIGH MIDDLE LOW lt Conditions Ambient temperature 20 30 C Load Unloaded lt Distribution data lt Amount of power consumption Temperature of the cycle in each area SV 30C a
9. performance Temp C Condition AT30 C 50Hz Time minute Condition AT30 C 60Hz SV 20 C SV 20 C AU 0 10 20 30 40 50 Time minute 3 Condition AT20 C 50Hz SV 20 C 9 SV 30 C 5 SV 30 C SV 30 C 5 0 10 20 30 40 50 Timelminute Condition AT20 C 60Hz X Time minute
10. to the current AT25 C 7 6A Non action to the temp Operation time 10 sec C Temp control relay GAF 11123T Contact capacity 20A Coil 12VDC Rating 25 Rated output 12VDC 0 9A Breaker switch Type BAM215131 ee Battery switch Type SLE6A2 5 UM Rating eV 1100mAH Specifications of sensor Type 502AT 1 Lows a wn me wo rem m sez mas 1s 11 Wiring Diagram POWER CORD LL BREAKER SWITCH 15 DISPLAY CIRCUIT BOARD cm BUZZER CONTROL m ge TEMP CONTROL CIRCUIT BOARD CHI EMP SEMSOR a m x m 2 cone H C REMOTE ALARM TERHMIHAL BATTERY SWITH Bk R R BATTERY INTERFACE BOARD HTR 460 OPTION SWITCHING POWER SUFPFLY CONTROL RECORDER OPTION L 1 BUZZER TEMP SENSOR CONTROL HARNESS D SENSOR READ WIRE ASSY HARNESS HARNESS SD CONTROL RELAY a GHY hom BOX YELLOW ORANGE VIOLET GREEN Ol SPLAT ci n T BOARD PREARTH HARNESS P RE n 4 MDF 837 ONLY EARTH BL EARTH c EARTH LPOwER CORD 5 HARHE
11. SS C t INTERFACE BOARD 1 MTR 480 OPTION R52382C TERMINAL DSUB SP T TDAYS n RECORDER RS485 7 TERMINAL 2 D 3 og OPTION T 52 ALARM n e m Ld a of ir EARTH i e ERS 2P OFF C BK bebe l SWITCH R BK STARTING CAPACITOR BATTERY EARTH RUNNING CAPACITOR BREAKER SWITCH COMPRESSOR AC2B V iSA 0 L RELAY Ten ENN THE SET CAL TOP BOTTOM roro eo r 555 LLL D 5752 rl SWS al 1 108 mn 90 DISPLAY 831114 Lanemeeammeamammauem med mmm we ee mm m mn de am dm m dn de e de See Pew EI PL TN KT 00 661u81 429 evt x QOr 8EINSI on do mo mn 00v 6 iuG 1 d o E zn 3 1 p n aem gt 62 5 0 N
12. Setting is changeable in F05 Compressor would not restart next 3 minutes fixed value in case it turns off during cycle operation 2 Temperature alarm delay time Default 10 minutes When unit is in high low temperature alarm condition buzzer and remote alarm activate with delay time Display blinks and ALARM lamp is lit without delay Setting value is changeable in F50 Temperature offset Input offset value to adjust for temperature in temp sensor with actual temperature Temp sensor offset value is 4 0 C You can change offset value in F07 Range 4 9 4 9 Display offset Offset value for display is displayed value 0 5 C Operation for remote alarm 1 2 N O 1 3 N C Lamp operation DP51 Red on display PCB ALARM lamp blinks during alarming conditions DP1 Orange on control PCB Lit in normal condition Goes off in high low temp alarm with 15min delay in sensor errors in power failure DP2 Green on control PCB Lit during compressor operating Goes off during compressor turns off 19 19 20 Examples of display Chamber temp 29 5 Decimal point of chamber temp 80 0 LET IN Set temp 30 0 Sensor offset 4 9 Function code F03 Error E01 Service code 384 Key Lock L 0 Set value 004 EE Buzzer tone Intermittent tone In alarming condition Click tone In key operation In memorize setting value Continuous tone Ineffective setting valu
13. e Limiti L3 LEN IE Installation of compressor terminal cover 1 Fixing bar dV Hang fixiing bar on the both holes of the terminal Then move the bar to the right side al Terminal cover Put lead wires into the terminal cover 3 Connect PTC and OLR with the specified color lead wires Refer to Wiring diagram Terminal cover OLR PTC 4 Violet cover m APartially cut for explanation L blue 5 Blue Fit PTC with terminal cover Put the projection of terminal cover in the squarish hole See picture 4 Inside of terminal cover 7 Mount terminal cover on compressor terminal Move the fixing bar back to original position and fix the bar on 2 projections with a snap Ld 1 Projection For the removal of terminal cover follow the above process vice versa a 94 M Parts layout Door hinge cover Door hinge cover removed Control panel Control panel removed Temperature control sensor cover Temperature control sensor Loaded Load Line Entrance of temperature control sensor on the back Bend Temperature control sensor to attach load with it Temperature control sensor connector insert Access port for recorder sensor Lock Connection terminal for Recorder with socket 25 Remote alarm
14. e alarm turns off Press BUZZER key to stop buzzer sounding Remote alarm keeps activating Remote alarm keeps activating until chamber temperature is stabled after the power retrieves from power failure If you press BUZZER key during power failure you can check chamber temperature for 5 seconds If there are not any key operations for 90 seconds in setting mode Key Lock mode and Function mode the value would not be memorized and automatically returns to chamber temperature display Alarm resume time Ring Back Buzzer sounds again after alarm resume time elapses even if someone intends to stop buzzer sounding by pressing BUZZER key during alarm condition Alarm resume time is changeable in F25 Temperature in temp sensor The 13 decimal point of the temperature in temp sensor is displayed in F12 30 2 C gt Displayed as 30 2 Battery accumulation period Battery accumulation period is displayed in Ex 2 years and 6 months gt Displayed as 02 5 When battery accumulation period is 02 8 F 1 and chamber temperature are displayed alternately How to reset battery accumulation period Input 409 in FO6 and press SET key to clear accumulation period to 00 0 F 1 is disappeared on the display ROM version Current ROM version is displayed in F30 Ex Ver 1 00 gt Displayed as 1 00 15 12 Function mode Function modes are as follow 01 02
15. emperature sensor setting range 4 9 C 04 9 C This function is used for adjustment between display temperature and 1 2H air temperature In F07 displayed press SET key to display 00 0 default setting then change the value with key and gt gt key Press again SET key to memorize the value lt How to adjust display temperature and 1 2H air temperature gt When the actual 1 2H air temperature is 26 C and setting temperature is 30 C input and press SET key to display 00 0 Change the value to 04 0 and press SET key About 4 C is added to display temperature and chamber temperature is gradually lowered to 30 C Display of temperature in temperature sensor Input F12 and press SET key to display F12 and XX X current chamber temperature alternately Press SET key to revert to chamber temperature display It is not shown minus when the temperature is lower than 20 0 C Ex Actual temp 20 5 Display shows as 20 5 Setting of model code 001 MDF 137 In F17 displayed press SET key to display model code 001 Press SET key again to memorize the value lt Initialization of non volatile memory Zero adjustment value for temp sensor 30 C Alarm resume Ring Back time 30 minutes Setting temperature 30 C Setting temp for high temp alarm 10 C Setting temp for low temp alarm 10 C Joint operation for remote alarm Not joined and buzzer Compres
16. ir temperature Amount of power consumption when driving at cycle Unit C SV 30 C Ambient temperature 20 C Unit kWh da Ambient temp 20 Ambient temp 30 220V50Hz 230V50Hz Maximum Minimum 2 Differential Maximum Minimum Differential 220V 230V 240V Note This data does not represent a guarantee of product performance I m I I 1 I i i I 0 1 Ambient temperature 300 220V50Hz 230V50Hz Maximum Minimum EM Differential Maximum Minimum Differential Note This data does not represent a guarantee of product performance 29 Distribution data Amount of power consumption Amount of power consumption when driving at cycle SV 20 C Unit KWh da Ambient temp 20 Ambient temp 30 Temperature of the cycle in each area SV 20C air temperature Unit C Ambient temperature 20 C 220V50Hz 230V50Hz Middle of Differential Maximum Minimum 220V 141 230V 240V Note This data does not represent a guarantee of product performance i13 19 23 5 2215 21 Average 203 Ambient temperature 30 C 220V50Hz 230V50Hz Differential Maximum Minimum d 174 203 A475 218 17 8 21 5 18 6 19 6 24 0 2186 42 19 8 Average 204 Note This data does not represent a guarantee of product
17. key to display E09 When chamber temperature is equal or higher than setting temperature high temp alarm setting temperature 1 0 ALARM lamp and the digital display blink After 10min later buzzer sounds and remote alarm output activates When chamber temperature is equal or lower than setting temperature ALARM lamp and the digital display go off buzzer stops sounding and remote alarm output turns off If you press BUZZER key buzzer stops sounding Remote alarm keeps activating High temp alarm setting range 005 015 Default setting 010 When chamber temperature is equal or lower than setting temperature low temp alarm setting temperature 1 0 ALARM lamp and the digital display blink After 10min later buzzer sounds and remote alarm output activates When chamber temperature is equal or higher than setting temperature ALARM lamp and the digital display go off buzzer stops sounding and remote alarm output turns off If you press BUZZER key buzzer stops sounding Remote alarm keeps activating Low temp alarm setting range 05 15 Default setting 10 10 11 Power failure alarm Auto Return When power switch is off position or power is not supplied for 3 seconds with battery switch ON ALARM lamp blinks buzzer sounds intermittently and remote alarm activates When the power is retrieved within 3 seconds since the power failed the apparatus restarts with initial operation Remot
18. n driving at cycle Instruction manual Page Ff 11 12 13 21 24 2 33 Cooling performance New compressor realizes chamber temperature can maintain 30 C at least when ambient temperature is 35 Environment conscious HFC refrigerant R 134a is adopted CP urethane foaming is adopted for frame insulation Better reliability for storage Various function modes are added by flash memory Battery age is informed by counting battery accumulation time Delay time for temperature alarm is changeable New door lock mechanism Specifications W Structural specifications Door Lock 1 pc cylinder type Compressor Hermetic type Output 150W Evaporator Aluminum tube on sheet type Condenser Wire and tube type Refrigerant R 134a Batter For power failure alarm Nickel metal hydride battery DC6V 1100mAh y Automatic charge Accessories Weight 02 Kg Automatic temperature recorder MTR 4015LH MTR G85 Mounting kit for automatic temperature recorder MDF S3040 for MTR 4015LH MDF S740 for MTR G85 2 baskets MDF 13B2 MTR 480C MTR LO3 MTR 5000 Optional components ll Performance specifications 35 dB A background noise 20dB Control specifications Microcomputer input by keypad Temp controller Setting range 18 C 35 C 1 C increment Non volatile memory Temp sensor Thermistor sensor
19. sor delay time 3 minutes Communication ID 000 Communication mode 000 Delay time for temp alarm 15 minutes Key Lock OFF F21 F22 F24 F25 F26 F30 Serial communication ID setting Range 000 255 Input F21 and press SET key to display O00 default value Press SET key to memorize the value and return to chamber temperature display Serial communication data Data Display value Chamber temperature 73 3 78 4 Temperature in comp sensor Compressor operation Power failure Operation ratio 2H timer count 8H timer count 70 8 159 5 C O OFF 100 ON O OFF 100 ON 0 100 222 96 0 120 minutes 0 480 minutes Setting temperature 35 0 18 0 C High temp alarm setting temp 5 0 15 0 C Low temp alarm setting temp 5 0 15 0 C High temp alarm operation Low temp alarm operation O OFF Remote alarm operation O OFF Range for changing chamber temp 25 0 18 0 C Serial communication mode setting Control mode 3 digit O Local initial value 1 Remote Baud rate 274 digit 2400 bps initial value 1 4800 bps 2 9600 bps 1 digit is not used Note It is unable to change setting temperature when you set control mode at remote Joint operation for remote alarm and buzzer Input F24 and press SET key to display 000 default setting Change to your required set
20. temperature and dF are displayed alternately In defrosting temperature alarm is cancelled When the sensor error is occurred In defrosting error code and chamber temperature are displayed alternately dF is gone off In defrosting only the buzzer key is operative In chamber temperature display press the key for 5 seconds to activate alarm test mode ALARM lamp blinks buzzer sounds intermittently and the display goes off and remote alarm activates Automatically returns to normal condition after 90 seconds passed even if you don t press this key Auto Return When you perform alarm test with battery switch is off position E09 blinks During setting mode press this key to change the digit one by one In chamber temperature display press this key for 5 seconds to enter into Key Lock mode with L_0 display During setting mode press this key to count the digit up one by one In chamber temperature display press this key for 5 seconds to enter into Function mode with FOO display Input each function code by pressing key and key Temperature control Setting range Display range Setting process 18 C 35 C 50 C 50 C Press SET key and set the required value with 4 key Press SET key again to memorize the set value and then automatically return to chamber temperature display Unacceptable setting When you input a value in unacceptable setting range and press SET range
21. ting by key Press SET key again to revert to chamber temperature display 000 Not joined 001 Joined Setting of alarm resume time Ring Back Input F25 and press SET key to display 030 default setting Change to your required setting by key Range 000 060 Press SET key again to revert to chamber temperature display 000 Not resumed 010 10 minutes 020 20 minutes 030 30 minutes 040 40 minutes 050 50 minutes 060 60 minutes Display of operation ratio Input F26 and press SET key to display F26 and XXX current operation ratio alternately Press SET key again to revert to chamber temperature display Display of ROM version Input F30 and press SET key to display F30 and X XX current ROM version alternately Press SET key again to revert to chamber temperature display 13 14 15 16 17 18 F50 Setting of temperature alarm delay time Input F50 and press SET key to display 015 default setting Change to your required setting by key and pp key Range 000 015 Press SET key to memorize the value and revert to chamber temperature display 000 Not delayed Compressor operation for temperature control When chamber temperature is equal to set temperature Compressor turns on When chamber temperature is 0 6 C lower than Compressor turns off set temperature Delay time 1 Compressor delay time Default 3 minutes Compressor should be started with delay after the power is supplied
22. tting Change to your required value and press SET key to memorize and return to chamber temperature display Setting of temperature for low temp alarm Setting range is 05 15 Input F02 and press SET key to display 10 Default setting Change to your required value and press SET key to memorize and return to chamber temperature display Display of battery accumulation period Input FO3 and press SET key to display and battery accumulation period alternately Press SET key to return to chamber temperature display 00 0 Battery accumulation period is less than 36days Setting of compressor delay time This function is performed when the main power is turned on or power is retrieved from power failure Setting range is 005 015 Press SET key to memorize the value and return to chamber temperature display Input FO6 and press SET key to display 000 default setting Input the service code with key and key Service code 384 press SET key to memorize service code and return to chamber temperature display 7 F12 F17 Reset of battery accumulation time Input service code 384 and 409 to reset battery accumulation time Return to chamber temperature display If you want to cancel the service code input F06 to display 384 Change the value to 000 with key and If you turn the power off then on the display is also returned to O00 Zero Adjustment of t
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