Sanyo MDF-193 Manuel utilisateur
SM9910176
SANYO Electric Co., Ltd.
Biomedical Business Division
Service Manual
Ultra-Low Temp. Freezer
MDF-193
MDF-192(N)
FILE No.
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.
MDF 193AT
Effective models
This service manual is effective following models.
Model name Product code Voltage and Frequency
823 011 53 220V 60HzMDF-193
823 011 54 220/230/240V 50Hz
MDF-192(N) 823 011 52 220V 50Hz
Contents
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Specifications ------------------------------------------------------ 1
-Structural specifications
-Control specifications
-Performance specifications
D i m e n s i o n s ------------------------------------------------------ 4
C o o l i n g u n i t p a r t s ------------------------------------------- 5
Refrigera t i o n c ircuit ------------------------------------------- 6
Components on PCB ------------------------------------------- 7
Connections o n P C B ------------------------------------------- 8
W i r i n g d i a g r a m ------------------------------------------- 9
C i r c u i t d i a g r a m ------------------------------------------- 10
Electric parts ------------------------------------------- 11
Specifications of sensor ------------------------------------------- 12
Control specifications ------------------------------------------- 13
P a r t s l a y o u t ------------------------------------------------------ 18
T e s t d a t a ------------------------------------------------------ 20
-Pull-down, Pull-up data
-Pull-down pressure data
-Current and power consumption data
-Temperature uniformity
(15points measured)
-Power consumption data
Instruction manual -------------------------------------------- 28
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1
Specifications
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ŶStructural 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
Access port 㱢40mm, 1 place in left side
Compressor Hermetic rotary type, 450W
Evaporator Tube on sheet type
Condenser Finless tube type
Refrigerant HFC mixed refrigerant (MU-N49)
Refrigerating oil Ze-NIUSL22SA
Power supply Local voltage
Battery Nickel-cadmium battery for power failure alarm; 6VDC, 270mAh
Weight 103 kg
Accessories 1 set of key, 1 scraper
Optional component
Aluminum container (MDF-19SC)
Inventory rack (IR-207C, IR-305C)
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2
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ŶControl specifications
Item MDF-193/192(N)
Temp. controller Micro-processor control system
Setting range; -50㷄䌾-95㷄䋨Unit;1㷄䋩
Non-volatile memory
Temp. sensor Platinum resistance; Pt.100ȍ
Temp. display LED digital display
High temp.
Setting range: +5㷄~+20㷄(Initial; +10㷄)
ALARM lamp blinks, intermittent buzzer tone emits and remote
alarm activates with 12min. delay.
Remote alarm contact: Max. DC30V, 2A, NC-COM, NO-COM
Turns on and does not link with buzzer
during power failure and temp. alarm.
Low temp.
Setting range: -5㷄~-20㷄(Initial; -10㷄)
ALARM lamp blinks, intermittent buzzer tone emits and remote
alarm activates with 12min. delay.
Remote alarm contact: Max. DC30V, 2A, NC-COM, NO-COM
Turns on and does not link with buzzer
during power failure and temp. alarm.
Power failure
When the power to the unit is not connected or power failure,
ALARM lamp blinks, intermittent buzzer tone emits and remote
alarm activates without delay.
Remote alarm 3P remote alarm terminal: DC30V, 2A, NC-COM, NO-COM
Battery life
Battery accumulation period: About 3 years
‘F1’ and chamber temperature are alternately displayed without
buzzer and remote alarm operations.
Fan motor life
Fan motor accumulation period: About 6 years
‘F2’ and chamber temperature are alternately displayed without
buzzer and remote alarm operations
Alarm
Fan motor lock
When condenser temperature is abnormal which is caused by fan
motor lock, ‘E15’ and chamber temperature are alternately displayed
and remote alarm turns over.
Control panel
Lamp: ALARM
Alarm buzzer stop key: BUZZER
Alarm test key: ALARM
Mode setting key: PV/SV
Enter key: ENT
Numerical value shift key: 㩷㩷
Digit shift key
3
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Item MDF-193/192(N)
Self diagnosis function
In the event of any abnormality occurred among temp. sensor and
comp. protect sensor, error code and chamber temperature are
alternately displayed.
zALARM lamp blinks, remote alarm activates and intermittent
buzzer tone is emitted.
Alarm resume function
The alarm buzzer is silenced by pressing alarm buzzer stop key
(BUZZER)
The buzzer will be activated again after certain suspension if the
alarm condition is continued.
Compressor protection Internal thermostat
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ŶPerformance specifications
Cooling performance Center point of freezing chamber; -86㷄䋨AT30㷄, no load䋩
Temp. control range -50㷄䌾-86㷄䋨AT30㷄, no load䋩
220VAC, 50Hz 220VAC, 60Hz 230VAC, 50Hz 240VAC, 50Hz
Rated power consumption 320W 400W 350W 370W
Noise level 46 dB (A) (background noise; 20dB)
Maximum pressure 3.20 MPa
Alarm duration 9 hours
Note: Specifications will be subject to change without notice.
4
<Overlook view>
<Front view> <Side view>
Dimensions
5
Cooling unit parts
<MDF-193/192(N)>
Item Specifications
Compressor
220V, 60Hz
220~240V, 50Hz
Type: C-1RN45L6A Compressor code: 802 021 16
Type: C-1RN45L5A Compressor code: 802 022 15
Refrigerant oil Ze-NIUSL22SA
Charged q’ty: 230 cc
Cooling system Forced air cooling㧔partially㧕and DSH
Condenser
Type Finless tube type (8 columns x 2 lines)
Cascade condenser
Pre-condenser 7 columns x 1 line W 290mm
Frame pipe Ǿ4.76mm x T0.7
Evaporator
Type
Tube on sheet sharing with interiorǾ7.94 mm x T 0.7 mm
Capillary tube (Cascade condenser) (Lower) (Ex)
Resistance
PSIkg/cm29kg/cm26kg/cm234PSI
Length (mm) 2000 2000 500
Outer diameter (mm) Ǿ1.8 Ǿ1.8 Ǿ2.4
Color None Black None
Refrigerant Type : MU-N49
Composition R-245fa/R600 230g
R-23 110g
R-14 50g
Dryer Dry core (D-SM032T)㨯㨯㨯Specially dehydrated
Condensing fan 4 blades, Ǿ196mm Material: ABS resin
Condensing fan
motor Type: SE4-D041N5P Output: 4W
* Refrigerant for service
MU-N49 (EU) ········· For Europe
MU-N49 (DOT) ······ For U, S, A
MU-N49 (J) ············ For other
6
Refrigeration Circuit
Capillary tube
Cascade condenser
Evaporator
shunt
Capillary tube
Check valve
Capillary tube (EX)
EX tank
Compressor
Pre-condenser
Pre-condenser
Accumulator
Condenser
Frame pipe
Note : Ensure to charge gas from the charging point at EX tank.
ו • • • Point to pull vacuum
7
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Components on PCB
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2
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