Operating instructions
Read the operating instructions before switching on for the first time
Page 12
GB
Freezer with explosion-proof interior container
7082 273-00
LGex 910
GB
Range of appliance use
Dimensions
The interior, which is free from sources of ignition, is used for
storing flammable substances in open or closed containers and
is therefore classified as a Zone 2 hazardous area.
The appliance is not suitable for use in explosion-hazard areas.
Forthestorageofvaluableortemperature-sensitivesubstancesor
products the use of an independent, constantly monitoring alarm
system is necessary.
This alarm system must be designed so that each alarm status
is detected immediately by an authorised person who can then
take appropriate action.
Position the temperature sensor for this system in the upper part
of the interior container (see Opening for external temperature
sensor).
LGUex 1500
LGex 3410
Operating and control elements
LGUex 1500
1ON/OFF button (to switch the appliance on and off)
2Temperature setting buttons
3Set button (Enter)
4Audible warning on/off button
5Button for calling up stored alarm events
6Temperature display
LGex 3410
Control elements
Compressor is running
Climate rating
LED flashing - refrigeration unit switches on after a delay.The
compressor will start automatically after the pressure in the
refrigerant circuit has equalised.
Theapplianceissettooperatewithinspecificambienttemperature
limits. These temperature limits should not be exceeded. The ap-
pliance has the following climate rating:
Climate rating
SN-ST (5)
Ambient temperature
+10°C to +38°C
AUX Temperature display via product sensor is activated
Alarm function
The appliance complies with the relevant safety regulations and
EC Directives 2004/108/EC, 2006/95/EC and ATEX 94/9/EC
(EN/IEC 60079-15, IEC 60079-0, EN 1127-1).
If
appears in the display, the appliance has a fault.Consult
your nearest customer service point.
HACCP (Hazard Analysis Critical Control Point)
The HACCP display means that the power supply and
interior temperature of the appliance are recorded.
If HACCP flashes in the display, there has either been a
power failure or the temperature in the appliance exceeded
the permissible range.
Setting up
• Avoid positioning the appliance in direct sunlight or near cookers,
radiators and similar sources of heat.
• The floor on which the appliance stands should be horizontal and
level.Compensate for uneven floors with the adjustable feet.
• Always ensure that there is good ventilation and that the outward
flowing air is able to escape.
• Standard EN 378 specifies that the room in which you install your
appliancemusthaveavolumeof1 m3 per8 gofR 600arefrigerant
used in the appliance, so as to avoid the formation of inflammable
gas/air mixtures in the room where the appliance is located in the
event of a leak in the refrigerant circuit. The quantity of refrigerant
used in your appliance is indicated on the type plate on the inside
of the appliance.
Safety lock
The lock in the appliance door is
equippedwithasafetymechanism.
Locking the appliance:
• Insert the key as shown by arrow
1.
• Turn the key 90°.
To unlock the appliance, the same
procedure must be repeated in the
same order.
Connecting to the mains
Power supply (AC) and voltage at the operating point must comply
with the details on the type plate.
The socket must be fused with a 10 A fuse or higher, it must be
away from the rear of the appliance and must be easily accessible.
Connect the appliance with a properly earthed fused plug
and socket only.
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Switching the appliance on and off
Calling up the temperature history
Connect the appliance to the mains - the display reads OFF.
The maximum and minimum interior temperature are stored elec-
tronically. These temperatures can be called up.
To switch the appliance on: Keep the ON/OFF button
pressed for approx. 5 seconds - the display reads ON.
To call up the temperature:
No alarm is displayed or sounded when the appliance is switched
Press
for 5 seconds. Display =
Display =
on for the first time.
When it is switched on a second time the appliance is in a status
that is the equivalent of an alarm status (power failure, interior
temperature too high).
Display =
Display =
The HACCP LED at the bottom right of the display flashes.
Press button
.
Press
+
for 5 seconds. The display will read
.
Press
for 5 seconds. Display =
The HACCP LED will now light up permanently.
Period in hours in which the interior tem-
peraturesweremeasured.Inthisexample
it was 3 hours.
Display =
Display =
Press for 5 seconds.
The electronic control system will switch back to normal operat-
ing mode.
To switch the appliance off: Keep the ON/OFF button
pressed for approx. 5 seconds - the display reads OFF.
Display =
Display =
Maximum (warmest) temperature
measured during these 3 hours.
Setting the temperature
• Press button
for 1 second.The temperature display flashes.
Display =
• To increase the temperature (warmer): press button
• To reduce the temperature (colder): press button
.
Display =
Display =
.
• Press button
again.
Lowesttemperaturemeasuredduring
these 3 hours.
The desired temperature setting is saved.
To set the observation period back to zero, proceed as
follows.
Adjustable temperature range
LGUex 1500 from -9°C to -26°C
LGex 3410 from -9°C to -30°C
Display =
Display =
Display =
Display =
Press
for 5 seconds. Display =
.
Press
for 5 seconds.
The electronic control system will switch back to normal operat-
ing mode.
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Adjusting the alarm parameters
Audible warning signal
The alarm limits (difference to the set temperature) and the alarm
delay (delay until alarm goes off) can be adjusted.
The audible warning signal will sound in certain alarm events. It
can be cancelled by pressing button
.
Press
for 5 seconds. Display =
Display =
Alarm messages
1. LED
flashes
Display =
Display =
If
appears in the display, the appliance has a fault. Consult
your nearest customer service point.
2. LED
flashes, which reads HI or LO
Display =
Display =
The interior is too warm (HI) or too cold (LO).
The audible warning signal sounds.
Note
The alarm parameters can be adjusted. See Adjusting the alarm
parameters.
Display =
Display =
3.
HACCP flashes
Lower alarm limit
There has been a power cut of some length or the interior was too
warm or too cold during a certain period of time.
Up to three alarm events can be stored and called up.
Display =
Temperature difference in °C
to select the desired setting.
Use buttons
and
Door open alarm
When the door is opened, the LED
begin to flash.
and the temperature display
Display =
When the door has been left open for more than 60 seconds, the
LED begins to flash, and and the temperature indication
flash alternately in the display.
Display =
Display =
Upper alarm limit
Temperature difference in °C
to select the desired setting.
The audible warning signal sounds.
If the door has to stay open for longer in order to insert items to
be cooled, cancel the audible warning signal by pressing button
.
Use buttons
and
Display =
Display =
Calling up stored alarm events
Display =
Display =
Alarm delay in minutes
Scroll through the list using
or
.
Use buttons
and
to select the desired setting.
Number of temperature alarms
Last temperature alarm
Display =
Last temperature alarm but one
Temperature alarm before
Number of power cuts
Last power cut
Press
for 5 seconds.
The electronic control system will switch back to normal operat-
ing mode.
Last power cut but one
Power cut before
Select the required item using the
again to return to the list.
button. Press this button
Note: You can exit the menu at any time by pressing
seconds.
for 5
If no button is pressed within 60 seconds, the electronic control
system switches back automatically.
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Example of an alarm query
Situation: HACCP flashes in the display.
Calibrating the control sensor (standard sensor for
temperature control)
Possible tolerances of the control sensor (the displayed tempera-
ture compared to the actual interior temperature) can be offset
with this function.
Display =
Press
for 5 seconds. Display =
Display =
There has not been an alarm status with a
Display =
Display =
too high or too low temperature. You must
switch to display
.
Display =
Display = correction value set at the factory
Press this button until
appears in the display.
Use buttons
in 0.1°C increments.
or
to increase or decrease the correction value
Display = 1 power failure has occurred.
Display =
Display = actual (corrected) interior temperature
Display =
Display =
Display =
Display =
Display =
Display =
Display =
Last power failure.
Year 2010
Display =
Press
for 5 seconds.
The electronic control system will switch back to normal operat-
ing mode.
Month 05 (May)
Day 30
Hour 23
Minute 14
The power failure lasted 3 hours.
Press
+
for 5 seconds. The display will read .
The HACCP LED will now light up permanently.
The electronic control system is now ready for the next alarm.
Press
for 5 seconds.
The electronic control system will switch back to normal operat-
ing mode.
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Product sensor (available accessory)
Switching the temperature display between
control sensor and product sensor
The temperature may be measured or recorded at any point in the
interior using the product sensor.
Press
for 5 seconds. Display =
• Connect sensor (see section entitled External alarm)
Activating the sensor
Display = (control sensor)
Press
for 5 seconds. Display =
Display =
Display =
(product sensor)
If the product sensor is activated,
AUX appears in the display.
Display =
Display =
Display =
Display =
Press
for 5 seconds.
Press
for 5 seconds.
The electronic control system will switch back to normal operat-
ing mode.
The electronic control system will switch back to normal operat-
ing mode.
Changing the network address
If
appears in the display, the product sensor has not
When connecting several appliances via the RS485 interface,
each appliance must have its own network address.
been activated.
If
appears in the display, the product sensor has not been
Press
for 5 seconds. Display =
Display =
connected, or is faulty.
Display =
Display =
Calibrating the product sensor
Possible tolerances of the product sensor (the set temperature
compared to the actual interior temperature) can be offset with
this function.
Use buttons
Display =
for 5 seconds.
or
to change the network address ( -
).
Press
for 5 seconds. Display =
Display =
Display =
Display =
Press
The electronic control system will switch back to normal operat-
ing mode.
Display = .
Use buttons
or
to increase or decrease the correction value
in 0.1°C increments.
Display = actual (corrected) product sensor temperature
for 5 seconds.
Press
The electronic control system will switch back to normal operat-
ing mode.
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Setting the real time clock
Resetting the parameters to factory settings
The real time clock is preset (CET). Other time zones or summer/
winter time must be adjusted manually.
The alarm limits and sensor calibration values can be reset to the
factory settings using this function.
Press
for 5 seconds. Display =
Display =
Pull out the mains plug.
Keep
pressed and connect the mains plug.
appears in the display!
Wait until
Display =
Display =
Year 2010
CAUTION!
Settheyearbypressingthe
buttons.
Do not press the SET button yet! Otherwise all the pa-
rameters of the electronic control system will be reset.
= save new setting
Display =
Display =
Display =
Month (1-12)
Display =
Set the month by pressing the
buttons.
The electronic control system will switch back to normal operat-
ing mode.
= save new setting
Display =
Day (1-31)
Defrosting
After a longer period of operation a layer of frost or ice can build up
on the cooling plates in the freezer compartment.This will increase
the energy consumption of the freezer. The cooling plates should
therefore be defrosted regularly.
Display =
Set the day by pressing the
buttons.
= save new setting
Display =
• To defrost, switch the appliance off. Pull out the mains plug.
• Remove the drawers.
• Transfer items to other appliances.
Days of the week (1 = Monday, 7 =
Sunday)
• To speed up the defrosting process put a saucepan of hot but not
boiling water on one of the cooling plates.
• Leave the door of the appliance open while defrosting. After de-
frosting mop up the remaining water with a cloth and clean the
appliance.
Display =
Set the day of the week by pressing the
buttons.
Do not use any mechanical devices or other artificial aids for
defrostingotherthanthoserecommendedbythemanufacturer.
= save new setting
Display =
Hour (0-23)
Cleaning
Before cleaning always switch off the appliance. Pull out the
mains plug or switch off or unscrew the fuse.
Display =
Set the hour by pressing the
buttons.
• Clean the inside, equipment and outer walls with lukewarm water
and a little detergent. Do not use abrasive or acid cleaners or
chemical solvents.
= save new setting
Display =
Do not use steam cleaners because of the
risk of injury and damage.
• Ensure that no cleaning water penetrates into the electrical com-
ponents or ventilation grille.
Minute (0-59)
• The dust should be removed from the refrigeration unit and heat
exchanger - metal grid at the back of the appliance - once a year.
• Do not damage or remove the type plate on the inside of the ap-
pliance. It is very important for servicing purposes.
Display =
Set the minutes by pressing the
buttons.
= save new setting
Warning!
Only clean plastic parts with a damp cloth!
Risk of electrostatic discharge.
Press
for 5 seconds.
The electronic control system will switch back to normal operat-
ing mode.
Note
When
appears in the display, the real time clock must be
reset.
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Malfunctions
External alarm
You may be able to rectify the following faults by checking
the possible causes yourself:
We recommend connecting the appliance
to an external alarm device.
There are various connection options at
the back of the appliance.
The appliance may only be connected
to an external alarm device by trained
personnel.
• Appliance does not function:
– Is the appliance switched on?
– Is the plug correctly fitted in the mains socket?
– Is the fuse intact?
• Loud running noise:
– Is the appliance set up firmly on the floor?
– Does the appliance cause nearby items of furniture or objects to
vibrate? Please note that noises caused by the refrigerant circuit
cannot be avoided.
• The temperature is not low enough:
– Isthetemperaturesettingcorrect(see"Settingthetemperature")?
– Doestheseparatelyinstalledthermometershowthecorrectread-
ing?
– Is the ventilation system working properly?
– Is the appliance set up too close to a heat source?
Floating alarm
output
•
appears in the display:
Connection to
– Reset the real time clock (see "Setting the real time clock").
RS485 interface
If none of the above causes ap-
ply and you cannot rectify the
fault yourself, contact the nearest
customer service department
stating the type designation 1,
service number 2and appliance
number 3 as indicated on the
type plate.
Terminating resistor
Optional temperature
sensor connection
When connecting several appli-
ances via the RS485 interface, the
terminating resistor must remain
on the last appliance.
Remove the terminating resis-
tors from the appliances in
between.
Shutting your appliance down
If your appliance is to be shut down for any length of time, switch
it off and disconnect the plug or switch off or unscrew the fuse.
Clean the appliance and leave the door open in order to prevent
unpleasant smells.
Note
The connectors are secured with
screws. To remove the connectors,
undo the left and right screws.
Floating alarm output
These three contacts can be used to connect the appliance to an
optical or acoustic alarm device.
The connection is designed for 250 V / 8 A AC or 36 V / 8 A DC.
N.O
Alarm output
Connection for a visual warning light or
an acoustic alarm signal.
N.C
Operating light
Connection for a control lamp to indicate
that the appliance is in normal mode.
COM
External power supply unit
250 V AC (alternating current) or
36 V DC (direct current - positive pole)
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Opening for external temperature sensor
Opening for external temperature sensor
Model LGUex 1500
Model LGex 3410
Remove upper drawer before beginning work.
Thecondensermustbeunscrewed
to make the sensor cable opening
accessible.
1. Unscrew condenser screws
(6 pcs.) and fold out condenser
at an angle.
1. Drill marked section on the back of
the appliance.
Important!
Make sure that no pipes are bent.
2. Drill marked section at the back of
appliance.
Important!
Only drill the outer wall of the
housing.
Do not drill too far.
2. Pull out strain relief device (bot-
tom left of interior container).
3. Pull out strain relief device (top left
of interior container).
3. Feedsensorthroughopeningand
secure sensor cable with strain
relief device.
4. Feedsensorthroughopening
andsecuresensorcablewith
strain relief device.
Important!
Important!
Position the sensor at the top of the interior container. The sen-
sor must not come into contact with objects so that only the air
temperature is measured.
Position the sensor at the top of the interior container. The sen-
sor must not come into contact with objects so that only the air
temperature is measured.
Important!
5. Closethesensorcableopening
atthebackoftheappliancewith
the sealant provided.
6. Screw condenser back on.
Important!
4. Close the sensor cable opening at the back of
the appliance with the sealant provided.
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Changing over door hinges
Installation dimensions (mm) LGUex 1500
Version 1
A cross-section of min. 200 cm2 is required in the
worktop for ventilation of the rear of the appliance.
1. Unscrew the hinge bracket.
Important:The door mounting has
a spring mechanism enabling the
door to close by itself. The hinge
bracket turns to the left when the
screws are undone.
2. Pull the door out at the bottom
and lift off.
3. Transfer handle and plugs to the
opposite side of the door.
4. Transfer pin on hinge bracket to the
opposite side.
Version 2
Ifnoventilationgrilleisprovidedintheworktop,therecess
must be at least 860 mm high to ensure adequate heat
dissipation to the front.
5. Transfer upper hinge components to
the opposite side.
6. Transfercoverplatetotheopposite
side.
Veiligheidsslot
Het slot in de deur van het apparaat
is met een veiligheidsmechanisme
uitgerust.
7. Mount door on hinge pin and close.
Apparaat afsluiten:
• Sleutelinderichting1naarbinnen
duwen.
• Sleutel 90° draaien.
Om het apparaat weer te ontgren-
delen moet in dezelfde volgorde te
werk worden gegaan.
8. Insert hinge bracket in lower door
mounting.
9. Turn hinge bracket by 90° - spring
is compressed. Screw on hinge
bracket.
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