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Sanyo MDF-193 Service Manual

Ultra-low temp. freezer
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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-193
MDF-192(N)
MDF 193AT
FILE No.
SANYO Electric Co., Ltd.
Biomedical Business Division
SM9910176

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  Summary of Contents for Sanyo MDF-193

  • Page 1 Service Manual FILE No. Ultra-Low Temp. Freezer MDF-193 MDF-192(N) SANYO Electric Co., Ltd. Biomedical Business Division MDF 193AT 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. Model name Product code Voltage and Frequency MDF-193 823 011 53 220V 60Hz 823 011 54 220/230/240V 50Hz MDF-192(N) 823 011 52 220V 50Hz...
  • Page 3: Table Of Contents

    Contents 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 Structural specifications Item MDF-193/192(N) Name Ultra-Low Temperature Freezer External dimensions W750 × D700 × H945 (mm) Internal dimensions W480 × D430 × H420 (mm) Effective capacity 86 L Exterior Painted steel Interior Stainless steel Door Painted steel Insulation Rigid polyurethane foamed-in place...
  • Page 5: Control Specifications

    Control specifications Item MDF-193/192(N) Temp. controller Micro-processor control system Setting range; -50 Unit;1 Non-volatile memory Temp. sensor Platinum resistance; Pt.100 Temp. display LED digital display Setting range: +5 ~+20 (Initial; +10 ) ALARM lamp blinks, intermittent buzzer tone emits and remote alarm activates with 12min.
  • Page 6: Performance Specifications

    Item MDF-193/192(N) In the event of any abnormality occurred among temp. sensor and comp. protect sensor, error code and chamber temperature are Self diagnosis function alternately displayed. ALARM lamp blinks, remote alarm activates and intermittent buzzer tone is emitted. The alarm buzzer is silenced by pressing alarm buzzer stop key...
  • Page 7: Dimensions

    Dimensions <Overlook view> <Front view> <Side view>...
  • Page 8: Cooling Unit Parts

    Cooling unit parts <MDF-193/192(N)> Item Specifications Compressor 220V, 60Hz Type: C-1RN45L6A Compressor code: 802 021 16 220~240V, 50Hz Type: C-1RN45L5A Compressor code: 802 022 15 Ze-NIUSL22SA Refrigerant oil Charged q’ty: 230 cc Cooling system Forced air cooling partially and DSH...
  • Page 9: Refrigeration Circuit

    Refrigeration Circuit Note : Ensure to charge gas from the charging point at EX tank. Cascade condenser Capillary tube Condenser shunt Pre-condenser Capillary tube Pre-condenser Capillary tube (EX) Compressor EX tank × Point to pull vacuum • • • •...
  • Page 10: Components On Pcb

    Components on PCB...
  • Page 11: Connections On Pcb

    Connections on PCB Following table shows the connections on Temp. control PCB. Connector Connects to Usage Voltage 1- 2:10.3VAC To supply the power to Temp. 3:GND Power transformer control PCB. 4- 5:18.5VAC 1:6VDC To supply the power to alarm during #1-#2: Battery, Battery SW 2 GND power failure.
  • Page 12: Wiring Diagram

    Wiring Diagram...
  • Page 13 Circuit Diagram...
  • Page 14: Electric Part

    Electric Parts MDF-193/192(N) 220V, 50Hz 220VAC, 60Hz 230/240VAC, 50Hz Compressor Type C-1RN45L5A C-1RN45L6A C-1RN45L5A Compressor code 802 022 15 802 021 16 802 022 15 Rated voltage (50/60Hz) 220~240V, 50Hz 220V, 60Hz 220~240V, 50Hz Winding resistance C-R(Main) 5.95 4.72 5.95 14.76...
  • Page 15: Specifications Of Sensor

    Specifications of sensor Temperatures in temperature sensor (502AT-1) and resistance values 154.5 71.80 35.65 13.29 145.9 68.15 33.99 10.80 137.8 64.71 32.43 8.84 130.2 61.48 30.92 7.20 123.1 58.43 29.50 6.01 116.5 55.55 28.14 5.00 110.2 52.84 26.87 4.17 104.4 50.23 25.65 3.50...
  • Page 16 Control specifications Keys on control panel BUZZER In alarm condition, buzzer stops sounding with this key pressed. Remote alarm output and alarm message would not be off. ALARM With this key pressed to activate alarm test mode to be forcibly step into alarm condition (ALARM lamp blinks and intermittent buzzer sounds).
  • Page 17: C I R C U I T D I A G R A

    Function mode Setting range : 00~32 Display range 00~39 00, 04, 05, 08~14, 16~20, 23, 26~31 and 33~39 are unused. Setting procedure : In chamber temperature display, keep pressing key over 5 seconds to enter function mode (F00 is displayed). Change the blinking 1 digit to desired function code with key and...
  • Page 18 Setting procedure: In chamber temperature display, keep pressing key over 5seconds to display “F00”. Input the desired function code with key and key. Press ENT key to be function mode available. Note) You should input service code in F06 prior to use F07, F15, F17, F21, F22, F24 and F32.
  • Page 19 F24: <Purpose> Display of chamber temperature (digit in decimal point is displayed) <Operation> In F24 displayed, press ENT key to display “000” (initial value) Change the value to “001” with key and press ENT key. Ex.) -85.1 Service code should be input in F06 prior to use this mode. F25: <Purpose>...
  • Page 20 Sensor error (1) Temp. sensor Open circuit: E01 and 50 are displayed alternately, the buzzer beeps intermittently and remote alarm contact outputs. The compressor would be allowed to turn on. Press BUZZER key to stop the buzzer beeping. Short circuit: E02 and -170 are displayed alternately, the buzzer beeps intermittently and remote alarm contact outputs.
  • Page 21: Part Layout

    Parts layout Front view Temperature display area Back side of temperature display area Display PCB Buzzer SW Back side of control panel Back-up test SW (AT type only) Back-up SW (AT type only) Power transformer Battery SW Power SW Switch PCB Control panel Power SW Temperature recorder...
  • Page 22 Lower part of left side Back side Comp. protect sensor Cascade Condensing fan motor Cover for claster Lower part of back side Claster Compressor Expansion tank Running capacitor Starting relay Temp. control relay Lower part of back side Electric BOX Starting capacitor Power cable Remote alarm terminal...
  • Page 23: Test Data

    Test data AT30 Pull-down & Pull-up Temperture 1/2H 220V50Hz 1/2H 220V60Hz 1/2H (Pull-up -100 Time[hour] AT30 Pull-down Temperture 220V60Hz 1/2H 220V60Hz EVA OUT 220V60Hz EVA IN 220V60Hz -110 Time[hour] 1/2H 220V50Hz EVA OUT 220V50Hz EVA IN 220V50Hz -110 Time[hour]...
  • Page 24 AT35 Pull-down Pressure 220V60H 220V60Hz 220V60Hz Time[hour] AT35 Pull-down Pressure 220V50Hz 220V50Hz 220V50Hz Time[hour]...
  • Page 25 AT35 Pull-down Current-Input 220V60H Input 220V60Hz Current 220V60Hz Time[hour] AT35 Pull-down Current-Input 220V50Hz Input 220V50Hz Current 220V50Hz Time[hour]...
  • Page 26 Temperature uniformity - 15 points measured (Reference data)
  • Page 27 Distribution data Temperature of the cycle in each area SV=-80 , air temperature) Amount of power consumption Unit: (SV-80 AT 20 Unit kWh/day 50Hz 60Hz AT 20 AT 30 50Hz 60Hz 50Hz 60Hz Mid of cycle Differential Mid of cycle Differential -73.3 -83.9...
  • Page 28 Distribution data Temperature of the cycle in each area SV=-70 , air temperature) Amount of power consumption Unit: (SV-70 AT 20 Unit kWh/day 50Hz 60Hz AT 20 AT 30 Differential Differential 50Hz 60Hz 50Hz 60Hz Mid of cycle Mid of cycle -63.4 -73.9 -68.7...

This manual is also suitable for:

Mdf-192Mdf-192n