Electrolux MR305C User manual

Brand: Electrolux

Model: MR305C

Type: User manual

The Electrolux MR305C is a compact and reliable ultra-low temperature freezer with a wide range of features to keep your samples safe and secure. Its microprocessor controller accurately regulates temperature from -40°C to -86°C, ensuring reliable sample storage. The intuitive control panel provides easy access to setpoints, alarm limits, and diagnostic information. The freezer's high-density polyurethane foam insulation ensures optimum temperature stability, while the automatic defrost system minimizes user maintenance.

820 9504 21 - ed1203

REFRIGERATORS

FREEZERS

ULTRACOLD - FREEZERS

OPERATING INSTRUCTIONS

BEDIENUNGSANLEITUNG

NOTICE D’ EMPLOI

GEBRUIKSAANWIJZING

ISTRUZIONI PER L’ USO

INSTRUCCIONES DE MANEJO

MANUAL DE UTILIZAÇÃO

BRUKSANVISNING

HÅNDBOK

BETJENINGSVEJLEDNING

KÄYTTÖOHJE

ARAHAN PENGGUNAAN

OPERATING INSTRUCTIONS .................................................... 3

BEDIENUNGSANLEITUNG

........................................................ 15

NOTICE D’ EMPLOI

............................................................................ 27

GEBRUIKSAANWIJZING

.............................................................. 39

ISTRUZIONI PER L’ USO

............................................................. 51

INSTRUCCIONES DE MANEJO

.......................................... 63

MANUAL DE UTILIZAÇÃO

......................................................... 75

BRUKSANVISNING

.............................................................................

HÅNDBOK

...................................................................................................... 99

BETJENINGSVEJLEDNING

.....................................................111

KÄYTTÖOHJE

..........................................................................................

123

ARAHAN PENGGUNAAN

...........................................................135

THE EQUIPMENT CONFORMS TO EMC DIRECTIVE 89/336/EEC AND LOW-VOLTAGE DIRECTIVE

73/23/EEC

CONTENTS

SEITE

IMPORTANT INFORMATION

GENERAL ............................................................................................................................................... 4

SAFETY ................................................................................................................................................... 4

TRANSPORT ........................................................................................................................................ 4

ENVIRONMENTAL PROTECTION ............................................................................................... 4

INSTALLATION

LOCATION

............................................................................................................................................. 5

CLEANING/DISINFECTING ............................................................................................................ 6

ELECTRICAL CONNECTION ........................................................................................................ 6

ELECTRONICS

OVERVIEW OF DISPLAY AND KEYPAD

.................................................................................. 6

SWITCHING ON .................................................................................................................................. 7

TEMPERATURE DISPLAY ............................................................................................................... 7

USER PARAMETERS

........................................................................................................................ 7

POWER FAILURE ............................................................................................................................... 9

RECHARGEABLE BATTERY .......................................................................................................... 9

LED TEST ............................................................................................................................................... 9

ALARM-TEST ....................................................................................................................................... 9

ALARM-HISTORY ........................................................................................................................... 10

WARNING MESSAGES

................................................................................................................ 10

ALARM SITUATIONS

..................................................................................................................... 10

ERROR MESSAGES ..................................................................................................................... 11

EXTERNAL TEMPERATURE ALARM FUNCTION ............................................................. 12

SAFETY THERMOSTAT ................................................................................................................ 12

OPTIONS

INTERIOR FITTINGS ...................................................................................................................... 12

TEMPERATURE RECORDER ..................................................................................................... 12

RS485 INTERFACE ........................................................................................................................ 13

EXTERNAL POWER FAILURE ALARM

.................................................................................. 13

MAINTENANCE AND CARE

CLEANING .......................................................................................................................................... 13

FAN ........................................................................................................................................................ 13

FRAME HEATER

.............................................................................................................................. 13

MACHINE COMPARTMENT ....................................................................................................... 14

DEFROSTING

.................................................................................................................................. 14

IMPORTANT INFORMATION

• Before using the unit, read these operating instructions carefully, including all the information on ope-

rating safety, use and maintenance.

• Keep these operating instructions ready at hand and leave them with the machine, so that all users

can find out about the functions and safety regulations.

• Ensure that there is sufficient room around the unit for air circulation. Please refer to the installation

information regarding this point.

• The units must only be used by adults. Do not allow children to play with the units or touch the con-

trols.

• All installation work and adjustments to the unit must only be carried out by qualified personnel. Work

performed by persons with insufficient technical knowledge may adversely affect the performance of

the unit or cause physical injury or damage to the equipment.

• All servicing and repairs must only be carried out by a qualified customer service engineer. Only genu-

ine spare parts must be used.

• Ensure that the connecting cable is not squeezed or bent when the unit is being installed or moved.

• Before cleaning or carrying out maintenance work, always switch the machine off and disconnect the

mains plug. Always pull the plug and never the cable. If the plug is not accessible, switch off at the

safety device.

• The unit's cooling system contains refrigerant. Both the unit and the products stored inside can be

severely damaged if this system starts to leak. Make sure, therefore, that no sharp or pointed objects

come into contact with the cooling system.

GENERAL

SAFETY

• Check whether the unit has been delivered undamaged. If you find that damage has occurred in tran-

sit, immediately contact the delivery service or relevant sales outlet, submitting the delivery note or

proof of purchase. Do not operate a unit that has been damaged in transit! If you are unsure, contact

your sales outlet and ask them.

• The unit must be transported in an upright position only (maximum inclination 45°).

• Make your contribution to saving the environment. Bear in mind that orderly and proper disposal is

required. Packaging materials and devices are always recyclable and should be taken for recycling.

• Before scrapping an old unit, remove the door so that children cannot lock themselves inside while

playing.

• Before scrapping the unit, arrange for the lead accumulator to be removed and disposed of sepa-

rately.

• When disposing of the unit, make sure that it does not get too hot, as combustible gas would cause

the insulating foam to froth up

ENVIRONMENTAL PROTECTION

TRANSPORT

• Two spacers are included with some models. These

must be attached to the rear of the unit as shown in

the diagram, before positioning the unit against the

wall.

• The unit must be set up in a dry well-ventilated

place. Avoid direct sunlight or locating it close to a

heat source.

• Ensure that the unit is steady and perfectly straight

and does not knock against any of the units next to

it.

• The air must be allowed to circulate freely all round

the unit as good air circulation is essential for trou-

ble-free operation. There must always be a gap of

at least 70mm all round the unit. Upright units must

always be at least 50cm away from the ceiling.

• Do not locate the unit below a ceiling fan or right

next to air-conditioning equipment.

LOCATION

INSTALLATION

POWER FAIL

ENTER

ALARM HISTORY

ALARM TEST

POWER FAIL

ENTER

ALARM HISTORY

ALARM TEST

min 70 mm

min 50 cm

min 70 mm

• If the unit is fitted with castors, once it is in its final

location, the feet must be unscrewed to immobilise

it and stop it rolling away. Unscrew the foot until it

touches the floor and then screw the lock nut back

up.

lock nut

foot

• With units of the

UUFF

type series, the door handle is

offset by 90° at the factory to protect it during

packaging and transportation. When setting up the

unit, turn it as shown in the diagram opposite.

CLEANING/DISINFECTING

• Clean or disinfect the unit inside and outside before using it. Use only gentle cleaning agents. Never

use aggressive or caustic cleaning agents, scouring powder, steel wool, abrasive sponges or chemi-

cal solvents. When cleaning, make sure that no fluids of any kind run into the ventilation housing.

• For disinfecting, we recommend all the surface disinfecting agents commonly used by the customer,

provided they are recommended by the German Association for Hygiene and Microbiology (DGHM) or

other national organisations. For disinfecting small areas, we recommend using a concentrated alco-

holic agent.

• Before connecting the unit, check whether the details on the nameplate in the interior correspond to

local values. The unit must only be connected to an earthed socket.

• Before connecting the unit and switching it on for the first time, allow it to stand for 30 minutes.

• To prevent problems with other electrical equipment causing this unit to malfunction, it should be con-

nected to a separate circuit. Never connect the unit to a single socket with other electrical equipment

by means of a multi-socket.

• Make sure that the plug of the unit is easily accessible so that if need be it can be easily disconnec-

ted without having to move other equipment or furniture.

ELECTRICAL CONNECTION

The equipment is monitored and controlled by electronics comprising the following components:

• ELECTRONICS BOARD This is located in the machine compartment of the refrigerator

• DISPLAY AND KEYPAD All functions are set and monitored here.

ELECTRONICS

OVERVIEW OF DISPLAY AND KEYPAD

red LED

((power failure)

display

green LED

(power ok)

alarm history

keys / LEDs

alarm test

keys

parameter

keys

light switch

LED test

reset buttonkey switch

temperature

alarm

LED

Depending on the model series, the unit will have one of the two displays shown below:

• DISPLAY AND KEYPAD

red LED

((power failure)

displaygreen LED

(power ok)

alarm history

keys / LEDs

parameter

keys

LED testreset buttonkey switch

temperature

alarm

LED

• To switch the unit on, turn the key switch to position “I”. The electronics will

then run the following self-test:

• test of all the display segments

• test of all the LEDs

• test of the audible signal

• After the self-test, the temperature inside the refrigerator is displayed.

• The compressor will only switch on a certain time after the self-test.

SWITCHING ON

• DISPLAY AND KEYPAD

During normal operation, the LED display shows the temperature inside the refrigerator either in °C

(Celsius) or in °F (Fahrenheit), depending on the parameter setting. The temperature is displayed in incre-

ments of 1°C or 1°F.

TEMPERATURE DISPLAY

• To reach the user parameters mode, press the two keys and simulta-

neously and keep them pressed for 5 seconds.

• The USER OK message appears briefly in the display, followed by the first

parameter with its set value. Use the arrow keys and to reach the next

or previous parameter, as required.

• To change a parameter, press the or key. Once a change has been

made, the display starts to flash to draw your attention to this fact. Pressing

the key saves the new value and the display stops flashing.

• To exit the user parameters mode, press the two arrow keys and again simultaneously. If no

other key is pressed for 15 seconds, you will automatically exit this mode. Parameters confirmed with

the key are saved.

The following parameters can be set in this way

SSEETT TTeemmppeerraattuurree sseett ppooiinntt

The target temperature for the refrigerator.

USER PARAMETERS

HHAALL UUppppeerr aallaarrmm ppooiinntt

The maximum permissible inside temperature. An alarm is triggered when this value is rea-

ched.

LLAALL LLoowweerr aallaarrmm ppooiinntt

The minimum permissible inside temperature. An alarm is triggered when this value is rea-

ched.

IMPORTANT:

For units from the BR model series (blood banks), the temperature set point and the two

alarm points are prescribed by the standard governing blood-preserving refrigerating

equipment (DIN 58371) and therefore cannot be changed by the customer.

MMUUDD MMuuttee sswwiittcchh ppeerriioodd

When there is an alarm, the audible signal can be switched off for a specified period of time

by pressing the key. The specified period is defined by this parameter. It can be varied

between 0 and 60 minutes in 1-minute increments.

CC//FF UUnniitt ooff tteemmppeerraattuurree

Conversion of the temperature display from °C (Celsius) to °F (Fahrenheit).

TTIIMM CClloocckk

The current local time. The time starts at 00:00 hours when the unit is switched on. First

set the minutes by means of the and keys. Once the key has been pressed,

the hour setting can be changed. Press the key again to save the new time.

IMPORTANT:

In order to define a precise defrost phase for units that defrost automatically, it is vital for

the clock setting on these units to be correct (see the Defrosting section).

After switching off the unit with the key switch or after a power failure, you must check the

time and if necessary, reset it.

DDTT11

DDTT22 SSttaarrtt ttiimmeess ffoorr tthhee ddeeffrroosstt pphhaasseess

(FR units and MF600G/MF605 only)

More detailed information on automatic defrosting can be found in the “Defrosting” section.

LLAANN LLaanngguuaaggee

This parameter is used to set the language in which the warnings and error messages are

displayed. ENG for English is preset. The alternatives are: ESP for Spanish, POR for

Portuguese. FRA for French, DEU for German, BHM for Bahasa (Malaysia), NED for Dutch,

SVE for Swedish, SUO for Finnish, NOR for Norwegian, ITA for Italian or DAN for Danish.

AADDRR NNeettwwoorrkk aaddddrreessss

Several units can be networked by means of the built-in RS485 interface. In this situation,

each individual unit must have a separate address. This address is defined by the ADR para-

meter.

• In the event of a power failure, the red POWER FAIL LED flashes and an audi-

ble alarm sounds. The audible alarm can be muted for a certain period of time

(MUD parameter) by pressing the key.

• After a certain interval, the display switches off automatically. However, the

inside temperature can be displayed again by pressing the key.

• No parameters can be changed during a power failure.

• If, during a power failure, the inside temperature increases beyond the upper alarm point, the tempe-

rature alarm is displayed and the corresponding values are stored in the Alarm History.

• An alarm caused by a power failure is not signalled by the external alarm function. Should this be

necessary, this function can be added later. Please contact your service centre for this.

POWER FAILURE

• In the event of a power failure, an integrated rechargeable battery monitors the electronics for a maxi-

mum of 48 hours.

• This battery is recharged automatically when the unit is connected.

• If the charge in the battery is insufficient to allow monitoring, the BAT LOW error message appears in

the display.

• A BAT FAIL error message indicates that the battery is either defective or connected incorrectly.

• The battery should be replaced every 2 years as a precaution. This replacement should only be car-

ried out by a recognised service engineer. The unit must be dead before the battery is removed.

• The rechargeable battery is a lead accumulator which, if defective, must be disposed of separately.

RECHARGEABLE BATTERY

• With GOLD Safety Standard units, briefly pressing the key switches the

light in the refrigerator on or off. If the light is not turned off using the switch,

it goes out after a certain period of time.

• With SILVER Safety Standard units, there is a separate light switch in the con-

trol grid for turning the lighting (option) on and off.

• Pressing the key for 5 seconds starts an LED test. All the LEDs and all the segments of the display

are switched on briefly one after the other.

• In the event of a power failure, the display is switched on with the key (see the Power Failure sec-

tion). In this case, any available interior lighting is not switched on.

LED TEST / LIGHT

• Sustained pressing of the alarm test keys or causes the electronics

to simulate a rising or falling temperature. This tests that the alarm is working

properly.

• The temperature gets as close as 0.5° to the relevant alarm point and then

increases or decreases in increments of 0.1° until it reaches the preset alarm

point. The alarm LED flashes, the audible alarm sounds and the inside tempe-

rature display flashes.

• When the alarm test key is released, the temperature display returns to its original value and the alarm

ceases.

• During this alarm test phase, both the Alarm History function and any connected remote alarm are dis-

armed.

ALARM TEST - DISPLAY AND KEYPAD 1 ONLY

• The Alarm History contains all the relevant values that occurred during a tem-

perature alarm. If either of the two Alarm History LEDs comes on, this means

that data can be retrieved from the memory.

• To retrieve data from the memory, the relevant Alarm History key (for the

warm alarm) or (for the cold alarm) must be pressed.

• If the or key is pressed successively, the following values are displayed:

MAX or MIN Maximum or minimum temperature value

during the alarm phase

AVG Average temperature during the alarm phase

DUR Duration of the alarm phase

• Repeatedly pressing the or key takes you back to the normal tempe-

rature display.

• If the Alarm History values have been called up and there is no new alarm

situation, the Alarm History LED goes out. The values remain stored, howe-

ver, until there is a new temperature alarm.

• Simultaneously pressing the Alarm History key or and the reset key clears the memory. The

message HIST DEL confirms the deletion.

• If there has been no temperature alarm during a certain period, the stored Alarm History data is auto-

matically deleted.

ALARM HISTORY

WARNING MESSAGES

When an alarm situation occurs, an audible signal sounds and the relevant warning message flashes on

the display. (The messages displayed depend on the language that has been set - see table below.) The

following two warning situations may occur:

•

DDOOOORR

This message appears when the door is left open for longer than the specified time. When the door is

closed, the message disappears from the display. Use the key to switch off the audible signal.

•

CCLLEEAANN

This indicates that the cleaning interval has been exceeded, that is to say, the condenser must be cle-

aned (see the Machine Compartment section). The message disappears and the audible signal is

muted when the key is pressed.

ALARM SITUATION

The following alarm situations may occur:

•

TTeemmppeerraattuurree aallaarrmm

A temperature alarm is triggered when the inside temperature reaches either of the two preset alarm

points.

• The temperature indicator in the display starts flashing

• The LED flashes

• The audible alarm sounds

•

PPoowweerr ffaaiilluurree aallaarrmm

(also refer to “Power Failure” section)

• The LED flashes

• The audible alarm sounds.

• The audible signal can be muted for a certain period of time by pressing the key (MUD parame-

ter). If the alarm situation persists beyond this time, the audible alarm comes back on.

• In both these situations, you must try to discover the cause of the alarm and eliminate it as quickly as

possible. If this is not successful, you must immediately take the necessary action to ensure that the

goods being stored are not harmed.

ERROR MESSAGES

• As well as alarm situations, the unit also indicates functional errors. If there is a functional error, an audi-

ble signal sounds and a relevant message is displayed. (The messages displayed depend on the lang-

uage that has been set - see the table below.)

• The audible signal can be muted for a certain period of time by pressing the key (MUD parame-

ter). If the error persists beyond this time, the audible alarm comes back on.

• When an error occurs, the necessary action must be taken immediately to ensure that the goods being

stored are not harmed. You must inform your local service centre immediately, telling them not only the

error message, but also the essential product number and serial number of the unit.

• The electronics may display the following errors:

DDEEFFRR

Problem during defrosting

CCOOMMPP

Compressor malfunction

FFAANN

Fan problem

BBAATT LLOOWW

Battery voltage too weak

BBAATT FFAAIILL

Battery fully discharged, not connected or defective

PPRREESS CCOONN

Overpressure at the condenser or pressure sensor defective

RREEGGUU SSEENN

Defective control sensor or a fault in the connecting lead

MMIIDD SSEENN

Defective temperature sensor or a fault in the connecting lead

PPRRGGMM EERRRR

Configuration parameters and board settings do not match

TTEESSTT EERRRR

Error during the self-test phase

EENNGG

DOOR

CLEAN

DEFR

COMP

FAN

DRAIN

BAT LOW

BAT FAIL

PRES CON

REGU SEN

MID SEN

PRGM ERR

TEST ERR

EESSPP

PUERTA

LIMP

DESCONG

COMPRES

VENT

DESAGUE

BAT BAJA

AVER BAT

PRES SON

SEN REG

SEN MED

PRGM ERR

TEST ERR

PPOORR

PORTA

LIMP

DESCONGE

COMPR

VENT

DRENAGE

BAT BAIX

AVA BAT

PRE COND

SEN REG

SEN MED

PRGM ERR

TEST ERR

FFRRAA

PORTE

NETT

DEGIV

COMP

VENT

ECOUL

BAT FAIB

PAN BAT

PRES CON

REGU SON

SOND CEN

PRGM ERR

TEST ERR

DDEEUU

TUER

REIN

ENTFR

KOMP

VENT

ABL

BAT SCHW

BAT AUSF

DR KOND

REGS AUS

SO-M AUS

PRGM ERR

TEST ERR

BBHHMM

PINTU

BERSIH

CAIR

KOMP

KIPAS

ALIR

BAT REN

BAT ROSA

TEK KOND

SEN REGU

SEN TENG

PRGM ERR

TEST ERR

NNEEDD

DEUR

REINIGEN

ONTDOOI

COMP

VENT

AFVOER

BAT ZWAK

BAT LEEG

DRUK CON

REG SEN

MID SEN

PRGM ERR

TEST ERR

SSVVEE

DORR

RENG

AVFR

KOMP

FLAKT

AVTAPPN

BAT LAG

BAT FEL

O TRYCK

REGL GIV

MED GIV

PRGM ERR

TEST ERR

SSUUOO

OVI

PUHDISTA

SUL VIKA

KOMPR

TUULETIN

TYHJ

AKKUJAN

AKKUVIKA

YLIPAINE

OHJ ANT

LAMP ANT

PRGM ERR

TEST ERR

NNOORR

DOR

REN

AVTIN

KOMPRES

VIFTE

AVLOP

BAT LAV

BAT FEIL

TRYKK

REGU SEN

MID SEN

PRGM ERR

TEST ERR

IITTAA

PORTA

PULIZIA

SBRIN

COMP

VENT

DREN

BAT BAS

AVAR BAT

PRES CON

REG SEN

SEN MED

PRGM ERR

TEST ERR

DDAANN

DOR

RENS

DEFR

KOMP

VENT

DRAEN

LAVT BAT

BATFEJL

TRYK KON

REGU SEN

MID SEN

PRGM ERR

TEST ERR

Translation table for warning and error messages (dependent on LAN parameter)

• There are three floating contacts on the back of the unit that can

be used to trigger an additional external temperature alarm (visu-

al or audible).

• Pressing the key in an alarm situation only switches off the

internal audible alarm. The key does not interfere with the exter-

nal alarm. The external alarm signal is only switched off once the

cause of the alarm has been eliminated.

• A voltage of between 12V DC and a maximum of 250V AC can

be connected at the contacts. The maximum load must not

exceed 8A. The minimum power rating is 500mA / 12V AC.

EXTERNAL TEMPERATURE ALARM FUNCTION

RReessttiinngg ssttaattee

AAllaarrmm

OPTIONS

• Depending on the model series, height-adjustable drawers or racks are included as standard fittings.

• The load must be evenly distributed over the drawers or racks,

• Pull out the drawers using the handles only.

• To remove the drawers (e.g. to clean them), pull the draw out to the stop and then lift.

INTERIOR FITTINGS

TEMPERATURE RECORDER

• The recorder is used to record the temperature response over a certain period. This period can either

be set to 7 days (preset) or 24 hours, as required. To change the setting, proceed as follows: raise the

lever with the recording stylus and take the lock nut off the recorder axis. You can now remove the

recorder disk. Now pull the recorder axis to remove the assembly from the housing. The switch with

which to set the required time period is located on the side of the assembly.

• The disks for the two time periods are different. Make sure that you insert the correct disk.

• The clockwork for the recorder is powe-

red by a 1.5V AA battery. This is located

on the underside of the recorder assem-

bly.

• To replace the stylus, take the old stylus

out of the stylus retainer and push the

new one into the guides until it stops. Be

careful not to touch the stylus with your

fingers.

• When re-assembling, make sure that the

lock nut is sited correctly.

SAFETY THERMOSTAT

• All units that operate in the + range are fitted with a safety thermostat. This thermostat switches off

the compressor as soon as the inside temperature falls below +2°C, to prevent the goods being har-

med by freezing.

• The refrigerator should be cleaned and if necessary disinfected before you use it for the first time and

then at regular intervals thereafter.

• Only use gentle cleaning agents. Never use aggressive or caustic cleaning agents, scouring powder,

steel wool, abrasive sponges or chemical solvents. When cleaning, make sure that no fluids of any

kind run into the ventilation housing.

CLEANING

MAINTENANCE AND CARE

• When units are fitted with internal ventilation, it is vital that the interior fan is always in working order.

• To prevent warm outside air being sucked in unnecessarily when the door is open, the fan switches

off when the door is opened.

• The airflow to the fan must never be impeded. The ventilation slots must therefore never be blocked

or covered.

FAN

FRAME HEATER

(UF AND UCF UNITS ONLY)

• The units of the UF and UCF type series are fitted with two frame heaters. The outer frame heater is

always switched on to prevent the door or lid seal on the container from freezing solid.

• You have the option of starting up the inner frame heater by means of a switch in the machine com-

partment on the back of the unit. When it is on, the switch is lit.

• As this inner heater impairs the cooling capacity of the unit, it

should only be switched on in the following situations

• high atmospheric humidity in connection with a high ambient

temperature (over 32°C)

• if the door is opened frequently every day

• if the door is kept open for long periods (e.g. when loading and

unloading the unit)

• Before switching on the inner heater, the door or lid seal and the container frame must always be free

of residual ice and frost and be thoroughly dry.

RS485 INTERFACE

• Depending on the fittings provided, the unit may have an RS485 inter-

face. You can use this interface to connect the unit to a PC or to net-

work it to other refrigerating equipment.

• It is possible to add the interface to any of the units later on.

• For information about connection options and software, contact your

local service centre.

EXTERNAL POWER FAILURE ALARM

• As well as an external temperature alarm, it is also possible to subsequently fit an external alarm for

power failure. For information about the connection options, please contact your local service centre.

• FR units and MF600G/MF605 are fitted with automatic defrosting. The defrost phase starts automa-

tically at a pre-determined time of day (parameter DT1 or DT2). The defrost phase lasts for about 30

minutes.

• Depending on the model, the units are preset to one of the variants listed below:

One defrost phase per day: DT1 = start time DT2 not applicable

Two defrost phases per day: DT1 = 1st start time DT2 = 2nd start time

One defrost phase per 48 hours: DT1 = not applicable DT2 = start time (every 2nd day)

• Should it be necessary or desirable to change these presets to a different variant, your service centre

can make this adjustment.

• As the cooling unit is switched off during the defrost phase, the interior temperature rises. The defrost

time should therefore be set for a time of day when the unit is not being opened.

• The message DFR, followed by the current temperature inside the unit, appears in the display during

the defrost phase.

• The automatic defrosting process does not start or is interrupted if the inside temperature is 10°C war-

mer than the selected temperature set point. Automatic defrosting is then put off until the next time

set for the defrost phase.

• Defrosting can also be started manually. To do this, press keys and simultaneously and keep

them pressed for 5 seconds.

DEFROSTING (FR UNITS AND MF600G/MF605 ONLY)

IIMMPPOORRTTAANNTT::

BBeeffoorree ccaarrrryyiinngg oouutt aannyy mmaaiinntteennaannccee oorr cclleeaanniinngg wwoorrkk iinn tthhee mmaacchhiinnee ccoommppaarrttmmeenntt,, aallwwaayyss sswwiittcchh ooffff