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

㩷

㪧㪸㪾㪼㩷

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

㩷

Specifications

㩷

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)

㩷

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

㩷

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.

zALARM 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

㩷

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.

Dimensions

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 interiorǾ7.94 mm x T 0.7 mm

Capillary tube (Cascade condenser) (Lower) (Ex)

Resistance

PSI࡮kg/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



Refrigeration Circuit

Capillary tube

Cascade condenser

Evaporator

shunt

Capillary tube

Check valve

Capillary tube (EX)

EX tank

Compressor

Pre-condenser

Accumulator

Condenser

Frame pipe

Note : Ensure to charge gas from the charging point at EX tank.

×• • • • Point to pull vacuum

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