Sanyo MDF-C2156VAN Manuale utente

FILE No.

SM9910079

SANYO Electric Co., Ltd.

Biomedical Business Unit

Service Manual

Ultra-Low Temperature Freezer

MDF-C2156VAN

MDF-C2156VANC

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.

Effective models

This service manual is effective following models.

Model name Product code Voltage and Frequency

MDF-C2156VAN 823 189 82 220V 50Hz

823 189 83 220V 60Hz

823 189 84 230/240V 50Hz

823 189 87 220V 60Hz

MDF-C2156VANC 823 189 86 220V 60Hz

Contents

㩷

Page

Features --------------------------------------------------- 1

Specifications --------------------------------------------- 2

- Structural specifications

- Control specifications

- Performance specifications

Dimensions --------------------------------------------------------- 6

Cooling unit parts ------------------------------------------------- 7

Refrigeration circuits --------------------------------------- 8

Refrigeration circuits welding points -------------------------- 9

Components on PCB ---------------------------------------------- 11

Electric parts ---------------------------------------------------- 12

Specifications of sensor ---------------------------------- 14

Wiring diagram ------------------------------------------ 16

Circuit diagram for CR PCB ------------------------------------ 18

Connections on PCB ------------------------------------- 20

Control specifications --------------------------------------- 21

Operation of Control Panel ------------------------------------ 26

Parts layout --------------------------------------------- 31

Test data --------------------------------------------------- 33

- Pull-down data

- Pull-up data

- Temperature uniformity and variation

- Power consumption data

- Unit pressure data

- Sample load test

Instruction Manual ------------------------------------------------- 40

㩷

Features

䂓㩷 The chest type -150㷄VIP series freezer has large effective capacity, 231L.

䂓㩷 Safety storage and security

- New double door gasket to prevent heat leakage.

- New VIP+ is adopted for insulation makes reduction of power consumption.

- Notice of failure prediction by additional new status function.

- Recording of chamber temperature and outer door open.

䂓㩷 Environmental friendly

- 2-stage mixed refrigerant system with NON-HCFC refrigerant.

䂓㩷 Optional component

zAutomatic temperature recorder + Mounting kit: MTR-155H+MDF-S30150

zInterface board: MTR-480

zLiquid N2 gas container: MDF-135N

Specifications

㩷

ŶStructural specifications

Item MDF-C2156VAN MDF-C2156VANC

Name Ultra-Low Temperature Freezer

External dimensions W1730 × D765 × H1010 (mm)

Internal dimensions W760 × D495 × H615 (mm)

Effective capacity 231 L

Exterior Painted steel

Interior Aluminum plate

Outer lid Painted steel

Insulation Vacuum insulation panel + Rigid polyurethane foamed-in place

Access port 㱢40mm, 1 place in the side table

Cooling circuit 2-stage cooling circuit and Low stage Auto cascade system

Compressor High stage side; Hermetic type, Output; 1100W

Low stage side; Hermetic type, Output; 1100W

Evaporator High stage side; Cascade condenser type

Low stage side; Tube on sheet type

Condenser High stage side; Fin and tube type

Low stage side; Shell and tube type, and Wire tube type

Refrigerant H stage side; R-407D

L stage side; HFC mixed refrigerant

Refrigerating oil Ze-NIUS32SA

Power supply Local voltage

Battery Lead storage battery, 6VDC, 7.2Ah x 4pcs, Auto-recharge

Weight 318 kg 325kg

Voltage booster None Built-in

Accessories 1 set of key for outer door latch, 1 set of key for panel door,

6 recording chart rolls, 1 dry cell

1 set connect tube for back-up system

Optional component

Automatic temperature recorder + Mounting kit (MTR-155H+MDF-S30150)

Liquid nitrogen gas container (MDF-135N)

Interface board (MTR-480)

㩷

ŶControl specifications

Item MDF-C2156VAN MDF-C2156VANC

Cooling performance Center of the chamber; -150㷄䋨AT30㷄, No load䋩

Temp. controller Micro-processor control system

Setting range; -125㷄䌾-155㷄䋨Unit;1㷄䋩

Non-volatile memory

Temp. sensor Platinum resistance; Pt.1000ȍ

Temp. display Digital display

High temp.

Setting range: +5㷄~+20㷄(Initial; +10㷄)

ALARM lamp and LCD display flashes, intermittent buzzer tone

with 15min. delay

Remote alarm contact: Normal Open, Rating; DC30V, 2A

Remote alarm contact activates with 15min delay

Low temp.

Setting range: -5㷄~-20㷄(Initial; -10㷄)

ALARM lamp and LCD display flashes, intermittent buzzer tone

with 15min. delay

Remote alarm contact: Normal Open, Rating; DC30V, 2A

Remote alarm contact activates with 15min delay

Door

When outer door is open, indication of ‘Door Open’ is shown.

ALARM lamp blinks and buzzer beeps intermittently after delay

time is passed.

Filter ALARM lamp flashes, message indication and intermittent buzzer

tone emitted

Power failure

When the power to the unit is not connected or power failure,

ALARM lamp flashes and intermittent buzzer tone emitted

Remote alarm contact activates.

Alarm

Remote alarm 3P remote alarm terminal: DC30V, 2A, NC-COM, NO-COM

Temperature alarm turns on during power failure.

Display

LCD panel

Temperature display; Digital display (1㷄increment)

Internal temperature is displayed by graphics, 24hours record can

be displayed per screen.

Control panel

Lamp: BATTERY, ALARM, STANDBY

Buzzer key: BUZZER

Menu key: MENU

Clear key: CE

Entry key: ENT

Figure input key

LCD contrast adjusting knob: CONT

Shift key:

㩷

Item MDF-C2156VAN MDF-C2156VANC

Status monitor function

When ambient temperature is higher than approx. 35㷄or lower

than approx. 0㷄, ‘Ambient temp is abnormal ‘ is displayed on LCD.

When power supply voltage is lower than approx.170V, ‘The power

supply is abnormal’ is displayed on LCD.

Data log function

zRecordable for approx. 4weeks in 12min. intervals.

zDoor delay time (more than 2min.) is recordable.

zTemperature for cascade sensor, filter sensor and AT sensor

are recordable.

zLog data is transmittable to PC with interface,

MTR-480.(Option)

Self diagnosis function

In the event of any failure among temp. sensor, filter sensor and

cascade sensor;

zError code and message are emitted.

zALARM lamp flashed, remote alarm contact turns over and

intermittent buzzer emit.

Key lock function Key lock ‘0’: Key lock is released.

Key lock ‘1’: Key locks

L stage

When the temperature in cascade sensor is -34 㷄or lower,

compressor (L) turns on.

When the temperature in cascade sensor is -12㷄or higher,

compressor (L) turns off.

Overload relay and High pressure switch (L) are controlled.

Compressor

protection

H stage

When the temperature in filter sensor is +60 㷄or higher,

compressor (H) turns off.

When the temperature in filter sensor is 10㷄lower than ambient

temperature, compressor (H) turns on.

Back-up systems

zAutomatic liquid N

injection device

zTemp. setting range;

zIndication: BACK-UP (Green)

zBack-up test switch; 8R2021

zPower switch; Locker switch

zBack-up systems can be available for 48 hours by full charged

lead storage battery.

㩷

ŶPerformance specifications

Cooling performance Center of the chamber: -150㷄䋨AT30㷄, no load䋩

Temp. control range -125㷄䌾-150㷄䋨AT30㷄, no load䋩

220VAC, 50Hz 220VAC, 60Hz 230VAC, 50Hz 240VAC, 50Hz

Rated power consumption 1550W 1700W 1550W 1600W

Noise level 51 dB (A) (background noise; 20dB)

Maximum pressure 3085 kPa

Usable conditions AT:5㷄䌾30㷄, less than 80䋦RH

Note: Specifications will be subject to change without notice.

Dimensions

Cooling unit parts

<MDF-C2156VAN/VANC>

Specifications

Item H side L side

Compressor

220V, 60Hz Type: KS370J1NS-7A Compressor code: 7FB-0-M101-001-06

220V, 50Hz Type: KS370J1NS-4A Compressor code: 7FB-0-M101-001-04

230/240V, 50Hz Type: KS370J1NS-4A1 Compressor code: 7FB-0-M101-001-05

Refrigerant oil Ze-NIUS32SA

Charged q’ty: 850cc

Ze-NIUS32SA

Charged q’ty: 850cc

Cooling system Forced air cooling（partially）

Oil cooler

Forced air cooling（partially）

Oil cooler

Condenser

Type Fin and tube Cascade condenser

Condenser 12 columns x 4 linesP6.35mm

Fin 88pcs. Coil pipeφ6.35mm x (t)0.7

Pre-condenser W 350mm

Frame pipe φ6.35mm

Evaporator

Type

Shell tankφ80mm

Tube on sheet

Capillary tube (upper) (Middle) (Lower) (Ex)

Resistance

PSI・kg/cm

56 PSI/G 9.9kg/cm

11.0kg/cm

3.7kg/cm

1.9kg/cm

Length (mm) 1300 3000 8000 3000 500

Outer diameter (mm) φ2.4

Inner diameter (mm) φ1.2

Refrigerant R-407DCharged q’ty: 432+/-10g MU-N721 (HFC refrigerant)

Charged q’ty: 880g

Oil additive n-Pentane

Charged q’ty: 46cc (28g)

n-Pentane

Charged q’ty: 17cc (10g)

Dryer 4A-XH-9 Charged q’ty: 18g 4A-XH-6 Charged q’ty: 58g

Condensing fan φ230 mm、4 blades

Material: ABS

Condensing fan

motor Type: SE4-E11L5P

Oil separator

SPK-0S02S3



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