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Service Manual
RoHS
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.)
WARNING
* You are requested to use RoHS compliant parts for maintenance or repair.
* You are requested to use lead-free solder.
Ultra-Low Temp. Freezer
MDF-394
MDF-393(N)
FILE No.
SANYO Electric Co., Ltd.
Biomedical Business Division
SM9910175
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Table of Contents
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Summary of Contents for Sanyo MDF-394
- Page 1 FILE No. Ultra-Low Temp. Freezer MDF-394 MDF-393(N) SANYO Electric Co., Ltd. Biomedical Business Division RoHS 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.) WARNING * You are requested to use RoHS compliant parts for maintenance or repair.
- Page 2 Effective models This service manual is effective following models. Voltage and Frequency Model name Product code MDF-394 823 013 52 220V 50Hz 823 013 54 220/230/240V 50Hz MDF-393(N) 823 013 56 220V 50Hz...
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Page 3: Table Of Contents
Contents 㩷 P a g e S p e c i f i c a t i o n s - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - S t r u c t u r a l s p e c i f i c a t i o n s - C o n t r o l s p e c i f i c a t i o n s - P e r f o r m a n c e s p e c i f i c a t i o n s... -
Page 4: Specifications
Specifications 㩷 㩷 ŶStructural specifications Item MDF-394/393(N) Name Ultra-Low Temperature Freezer External dimensions W1860 × D800 × H945 (mm) Internal dimensions W1120 × D520 × H530 (mm) Effective capacity 309 L Outer door Painted steel Inner door 3 pcs Insulation... - Page 5 ŶControl specifications Item MDF-394/393(N) Temp. controller Microcomputer control system Temperature setting range: -50C㨪-90C (Unit: 1C) Non-volatile memory Thermal sensor Pt.1000ȍ Temperature display LED digital display +5C~+20C for High temperature alarm (Initial; +10C) ALARM lamp blinks and buzzer sounds intermittently with 15min. delay High temp.
- Page 6 ŶPerformance specifications Cooling performance -86C at the center of the chamber (AT30C, no load) Temperature control range -50C㨪-86C㧔AT30C, no load㧕 Power source 220V, 50Hz 230V, 50Hz 240V, 50Hz Rated power consumption 620 W 650 W 680W Noise level 49 dB {A} (background noise 20dB) Maximum pressure 1.73 MPa * Design or specifications will be subject to change without notice.
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Page 7: Dimensions
Dimensions <Over view> <Front view> <Side view>... -
Page 8: Cooling Unit Parts
Cooling unit parts <MDF-394/393(N)> Specifications Item H side L side Compressor Type:C-1RN45L6A Type:CS200J1NS-7A 220V,60Hz Code:802 021 16 Code:7FB-0-M101-002-06 Type:C-1RN45L5A Type:CS200J1NS-4A 220V,50Hz Code:812 022 15 Code:7FB-0-M101-002-04 Type:C-1RN45L5A Type:KS200J1NS-4A1 230/240V,50Hz Code:812 022 15 Code:7FB-0-M101-002-05 Ze-NIUSL22SA Ze-NIUSL22SA Refrigerant oil Charged q’ty: 230cc Charged q’ty: 850cc Forced air cooling㧔partially㧕... -
Page 9: Refrigeration Circuit
Refrigeration Circuit... -
Page 10: Components On Pcb
Components on PCB 6Q6GOR%QPVTQNTGNC[ 6Q$CVVGT[ 6Q2QYGTVTCPUHQTOGT 6Q5YKEJKPIRQYGTUWRRN[ 6Q*EQORTGNC[ 6Q4GOQVGCNCTOVGTOKPCN 6Q*GCVGTTGNC[ %0 6Q5YKVEJ2%$ 6QFKURNC[2%$ 6Q#6UGPUQT 6Q$W\\GT 6Q6GORUGPUQT 6Q(KNVGTUGPUQT 6Q%CUECFGUGPUQT... -
Page 11: Connection On Pcb
Connection on PCB The following shows connections of connector on Temp. Control PCB. Connector Connects to Usage Voltage #1-#3: 12VDC #1 - #3: Switching power supply To supply the power to PCB. Output of remote alarm contact Remote alarm terminal zBetween #1 - #2 is open if the unit #1: Com has no alarm condition when the... -
Page 12: Wiring Diagram
Wiring Diagram... -
Page 13: C I R C U I T D I A G R A
Circuit Diagram... - Page 14 Electric Parts MDF-394/393(N) AC220V, 50Hz AC230/240V,50Hz Compressor (H) Type C-1RN45L5A C-1RN45L5A Code 803 021 15 803 021 15 㱢1, 220V, 50Hz 㱢1, 220V, 50Hz Rated voltage (50/60Hz) Winding resistance C-R(Main) 5.95㱅 5.95㱅 C-S(Aux) 14.76㱅 14.76㱅 Starting relay (H) Type AMVL-300A...
- Page 15 Specification of sensor 1. Following shows temperature and resistance values in thermistor sensor (502AT-1). 㷄 㷄 㷄 㷄 kȍ kȍ kȍ kȍ 䋭50 䋭36 䋭22 154.5 71.80 35.65 13.29 䋭49 䋭35 䋭21 145.9 68.15 33.99 10.80 䋭48 137.8 䋭34 64.71 䋭20 32.43 8.84...
- Page 16 2. Following shows temperature㩷 䋨0㷄䌾100㷄䋩㩷 and resistance values in temp. sensor (Pt1000ȍ). 䋨㷄䋩 1000.0 1003.8 1007.6 1011.4 1015.2 1019.0 1022.8 1026.6 1030.4 1034.2 1038.0 1041.8 1045.6 1049.4 1053.2 1057.0 1060.8 1064.6 1068.4 1072.2 1076.0 1079.7 1083.5 1087.3 1091.1 1094.9 1098.7 1102.4 1106.2 1110.0...
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Page 17: Control Specifications
㩷 Control specifications Keys on the control panel BUZZER In alarm condition, buzzer stops sounding with this key pressed. Remote alarm output and alarm message would not be off. During the power failure (battery back-up), press the key to show the chamber temperature for 5 seconds. - Page 18 Error codes E01: Temp. sensor is open circuited E02: Temp. sensor is short circuited E03: Cascade sensor is open circuited E04: Cascade sensor is short circuited E05: Filter sensor is open circuited E06: Filter sensor is short circuited E07: AT sensor is open circuited E08: AT sensor is short circuited E09: Battery switch is off position E10: Compressor temperature is abnormal...
- Page 19 (5) Battery SW is off If you press ALARM TEST key when battery switch is off position or position (E09): battery is unconnected, E09 is displayed. (6)Compressor When the temperature in filter sensor is equal or higher than 60㷄, E10 abnormal and chamber temperature are displayed alternately and high side temperature (E10):...
- Page 20 Other functions Auto Return If there is not any key operation for 90 seconds in each setting mode, Key Lock mode and Function mode, automatically reverts to chamber temperature mode. Note) Auto Return is not worked in F09 and F10. Alarm resume time : This is the function to prevent someone pressing BUZZER key to stop buzzer beeping when the unit is into alarming condition.
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Page 21: S P E C I F I C A T I O N S O F S E N S O
Function mode Setting of High temp. alarm set temperature Setting of Low temp. alarm set temperature Display of battery accumulation time Setting of compressor delay time Service code input (code: 384) F07 * Temp. sensor Zero Adjustment F08 * Cascade sensor Zero Adjustment Factory test mode ……... - Page 22 F05: <Purpose> To have compressor operation being delayed when the power is supplied or the power retrieves from the power failure. (Unit: Minute) <Operation> Input “F05” and press SET key to display “003” (initial). Change the value in the range “003”~”015” with key and key.
- Page 23 F13: <Purpose> To display the temperature of cascade sensor <Operation> Input service code in F06 prior to use this mode. Input F13 and press SET key to display alternately F13 and “XX.X” (present temperature of cascade sensor). Press SET key to revert to chamber temperature display.
- Page 24 F24: <Purpose> To set remote alarm and buzzer operation <Operation> Input F24 and Press SET key to display “000” (initial). Change to the desired value with key and key. Press SET key to store the value and revert to chamber temperature display.
- Page 25 Control of compressor Differential temperatures : H side compressor turns on. When chamber temp. is set temp. -0.4㷄 : Both H/L side compressors turn off. When chamber temp. is set temp. -1.6㷄 : L side compressor turns on. When H side compressor turns on and cascade temp.
- Page 26 11. Prevention for oil logged in the capillary Purpose: Capillary heater is conducted electricity by regularly turning both L/H side compressor off to prevent oil logged in the capillary. Operation: Both L/H side compressor are turned off, while the capillary heater relay is turned on. Frequency: 8 minutes in every 18 hours (Minutes are changeable in F19) Timing of operation:...
- Page 27 15. Lamp, display and buzzer specifications Lamp operation: <Control PCB> DP1: Orange lamp Goes off: High/low temp. alarm (15min. delay), sensor error, power failure : Not in alarm condition DP2: Green lamp Goes off: L side compressor turns off. (normal condition) : L side compressor turns on.
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Page 28: Part S L A Y O U
Parts layout Temperature display Control panel <Front view> Power SW Battery SW <Back side of control panel> <In the chamber> Temp. sensor Switch PCB CO2 back-up discharge Filter AT sensor Display PCB <Left side area> <Temp. control PCB> Cover for Temp. control PCB 㪫㪼㫄㫇㪅㩷㪺㫆㫅㫋㫉㫆㫃㩷㪧㪚㪙... - Page 29 <Left side - Top cover removed> Noise filter Electric BOX Filter sensor Compressor H Condensing fan motor䇭䇭Compressor L <Back side / Remote alarm terminal> 12P terminal 3P terminal Cover for remote alarm terminal <Electric BOX> Starting relay H Starting relay L Heater relay Temp.
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Page 30: T E S T D A T
Test data *All the data are the reference only. AT:30㷄 Pull-down data SV:-80㷄 㪋㪇 㪉㪇 Chamber temp. 㪇 㪄㪉㪇 㪄㪋㪇 㪄㪍㪇 㪄㪏㪇 㪄㪈㪇㪇 㪇 㪈 㪉 㪊 㪋 㪌 㪍 㪎 㪏 㪐 Time(hour) AT:30㷄 Unit pressure data 230V 㪉㪅㪇 㪈㪅㪌... - Page 31 AT:30㷄 Current and Power consumption 230V 㪈㪅㪇㪇㪇 㪈㪇㪅㪇 㪇㪅㪏㪇㪇 㪏㪅㪇 㪇㪅㪍㪇㪇 㪍㪅㪇 㪇㪅㪋㪇㪇 㪋㪅㪇 Power consumption(230V) 㪇㪅㪉㪇㪇 㪉㪅㪇 Current(230V) 㪇㪅㪇㪇㪇 㪇㪅㪇 Time(hour)
- Page 33 SV:-80㷄䇭AT:20㷄 Amount of power consumption 100V50Hz 100V60Hz -80㷄 20㷄 Center Variation Center Variation 㽲 -72.5 -81.3 -76.9 ±4.4 -71.7 -82.1 -76.9 ±5.2 Power source 100V50Hz 100V60Hz 㽳 -72.9 -81.3 -77.1 ±4.2 -72.2 -82.4 -77.3 ±5.1 kWh/day 10.7 10.3 㽴 -72.4 -81.1 -76.7 ±4.4...
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