Liebherr WTes 5872 User Manual
Laboratory
refrigerators
and freezers
3
The laboratory refrigerators and freezers
with Profi electronic controllers
ContentClimate rating defi nitions
Customer service
Page
7 - 11
12 -17
22 - 25
18 - 21
26 - 31
32 - 35
Laboratory refrigerators and laboratory
fridge-freezer with Comfort electronic controller
Low temperature -45°C chest freezers
Pharmacy refrigerators compliant with DIN 58345
Laboratory refrigerators and freezers with Comfort
electronic controller and spark-free interior
Laboratory refrigerators with mechanical control
and spark-free interior
Visit us also at
www.lab.liebherr.com
Climate rating SN = Ambient temperatures
of +10 °C to + 32 °C
Climate rating N = Ambient temperatures
of +16 °C to + 32 °C
Climate rating ST = Ambient temperatures
of +16 °C to + 38 °C
Climate rating T = Ambient temperatures
of +16 °C to + 43 °C
As a company specialised in manufacturing
refrigerators and freezers, Liebherr has a wide
and comprehensive service network.
4
5
Fresh ideas for the environment:
Liebherr’s energy-efficient refrigerators and freezers
ActiveGreen
For Liebherr, ActiveGreen starts early on in the design stages of
professional refrigerators and freezers. Liebherr uses high-quality
components for reliable operation and top energy efficiency even if
appliances are exposed to the toughest demands posed by
professional use. By combining precision controllers with highly
efficient refrigeration components, Liebherr’s professional appliances
offer exceptional energy savings. Liebherr is the first company to
change over its entire range of professional refrigerators and freezers
Know-how that matters!
With almost 60 years’ experience, Liebherr-Hausgeräte specialises
in the development and production of the very finest refrigeration
appliances, which offer the highest quality and superb design.
Innovative ideas pushing the envelope when it comes to convenience
and energy saving are regularly incorporated into Liebherr’s
appliances. Back in 1993 Liebherr was the first manufacturer to
change over to CFC-/HFC-free refrigerants for its entire range of
free-standing domestic appliances.
Liebherr’s manufacturing processes are also geared to the
efficient use of resources. Take, for example, the heat naturally
generated during appliance manufacture: it is recycled as heat
energy. Liebherr uses environmentally compatible powder coatings
for all its sheet metal. They contain no solvents and no waste water
which might have a negative impact on the environment results.
The plastic parts are marked for optimal recycling.
to the environmentally friendly R 290 and R 600a refrigerants. They
are HFC-free and have no detrimental effects whatsoever on the
ozone layer and the associated greenhouse effect. In addition to this,
the use of new, highly efficient compressors allows a significant
reduction in the energy consumption of the appliances. All Liebherr
production sites are certified to the international quality standard
ISO 9001 and the international environmental management standard
ISO 14001.
for commercial use
Premium product quality
Product quality and the resulting long useful life are primary
considerations when assessing the environmental life cycle of a
commercial appliance. Liebherr uses high-quality and well-balanced
components thus ensuring a long useful life expectancy. The
refrigeration quality of the appliances plays an important role in
keeping products fresher for longer – an aspect of particular
importance in the professional sector. Rapid cooling, temperature
stability, correct humidity and quick defrosting are key aspects.
Hygiene is another major factor and is fundamental to the design
of all Liebherr professional appliances. For instance, wherever
technically possible, the cabinets are designed and constructed to
avoid joints and seams. As a prime example, the extensive use of
moulded inner liners makes cleaning simpler and more hygienically
effective.
Award-winning energy efficiency
Energy efficiency always has been, and remains, of central
importance to Liebherr. It is one of the major influences on the
design of the commercial appliances. To illustrate the point, Liebherr
received three of the five 2006 ProCool awards for energy-efficient
and environmentally friendly refrigerators and freezers for commercial
use. The energy consumption of the award-winning appliances was
as much as 70 % below the market average. Liebherr’s extremely
Environmentally friendly in two respects
Liebherr is the first manufacturer to have changed over to
environmentally friendly HFC-free refrigerants for its entire range of
professional refrigerators and freezers for commercial use. Exclusive
use is made of the ecologically harmless R 290 and R 600a
refrigerants. Due to the changeover to these environmentally friendly
refrigerants, refrigeration components of even greater efficiency can
be employed, making the entire range even lower in energy
consumption.
energy-efficient commercial appliances also enjoy top energy
consumption rankings in various international countries and states,
such as the Netherlands or California. Precision electronic control
systems, optimised refrigeration components, maximum insulation,
and highly efficient compressors ensure that energy efficiency is
constantly improved.
7
Cal.1 1.0°C 0.5°C Cal.2 8.0°C -0.4°C Cal.3 15.0°C 0.8°C
+0.5°C
-0.4°C
+0.8°C
Innovative expertise and drive in the
laboratory sector
T
he demands made on refrigerators and freezers are particularly
high in all the sectors of professional use. Whether the issue is
the refrigeration performance, specifying the materials, designing
the refrigeration components or evolving the design concepts – all
the decisions are directed to ensuring the long-term, trouble-free
use of our appliances.
The most stringent reliability and safety standards apply to appliances
in the laboratory sector. Therefore Liebherr has a range of purposebuilt and factory-designed laboratory appliances in different
temperature ranges for numerous applications. The MediLine
appliances incorporating Profi electronic controllers offer many
advantages. High-grade materials, high-performance components
and accurate workmanship right down to the last detail ensure the
high quality of the Liebherr appliances.
The Profi electronic controller
The menu-guided Profi electronic controller with integrated real-time clock allows the temperature to
be set to 1/10°C accuracy. The text display has German, English, French, Spanish or Italian language
setting options. To satisfy laboratory hygiene requirements, the electronic controller is fl ush-fi tted and
has an easy-clean membrane keypad.
Mains-independent power supply of the electronic controller
In case of power failure, the electronic controller continues to operate from an integrated 12 V battery.
As a result, the memory continues to log the internal temperatures for another 72 hours even in the
event of power failure. Furthermore, if external alarm and documentation systems are connected, the
data transfer is maintained for as long as 72 hours.
Integrated alarm systems
A visual and audible temperature alarm alerts the user if temperature deviation limits are exceeded. In
addition, a visual and audible alarm is activated if the door is open for longer than 1 minute. There is
also an immediate visual and audible alarm in the event of power failure.
Integrated data memory
The Profi electronic controller has an integrated data memory which logs the last 30 alarm events
including date, time and maximum temperature as well as the internal temperature profi le at 4-minute
intervals. 2800 temperature logs are stored to memory, which corresponds to approximately a 7-day
logging period.
3-point calibration
The laboratory appliances with Profi electronic controllers provide 3-point calibration for extremely
accurate temperature control. This permits compensation between the set temperature and the actual
internal temperature at as many as three temperature points. Positive or negative changes to the
correction value can be made in steps of 0.1K.
The laboratory refrigerators and freezers
with Profi electronic controllers
72 hours
8
8,0 °C
7,5 °C
7,0 °C
6,5 °C
6,0 °C
5,5 °C
5,0 °C
4,5 °C
4,0 °C
3,5 °C
3,0 °C
2,5 °C
2,0 °C
t1 t2 t3 t4 t5 t6 t7 t8 t9
9
Laboratory refrigerators and freezers with Profi electronic controller
Energy-effi cient hot-gas defrost system
The hot-gas defrost system with demand and time control permits very short defrost cycles: only
8 minutes for laboratory refrigerators and 12 minutes for laboratory freezers. As a result, the internal
temperature remains almost constant during the defrost cycle. In addition, there is the option of initiating
the defrost manually.
External temperature and alarm documentation
The laboratory appliances with Profi electronic controllers are equipped with a volt-free contact for
alarm forwarding to an external remote warning system. The data stored in the internal memory can be
read out via the infrared interface and transferred to a PC with documentation software. In addition, the
appliances have an RS 485 serial interface enabling as many as 20 appliances to be networked with a
central documentation and alarm system.
High-quality interior for versatile use
The smooth compartment liners are made entirely of 304-grade stainless steel and are therefore
particularly easy to clean. The robust trayslides can be easily repositioned to suit needs and, together
with the plastic-coated grid shelves, they ensure versatile use of the interior. The trayslides are U-shaped
to make the grid shelves non-tilting.
Maximum temperature stability and temperature consistency
Maximum temperature stability is ensured by the high-performance forced-air cooling system with
double ventilation, in conjunction with optimal routing of the air fl ow. The very short defrost cycles
allow the internal temperature to be kept almost constant during the defrost phase. All the laboratory
appliances are tested according to the NF X 15-140 standard with regard to maximum temperature
stability and optimal temperature consistency.
Access port for an external temperature sensor
In the laboratory appliances with Profi electronic controllers there is provision for an independent
temperature sensor allowing, for instance, a PT 100 probe or similar measuring elements to be
positioned in the interior. The diameter of the access port is 7.6 mm.
Refrigeration components
The refrigeration components are securely integrated in the ceiling area, allowing ready access. The
compressor compartment panel can be simply raised for cleaning or servicing purposes and can be fully
detached from an opening angle of 45° to provide very good access to the refrigeration components.
Electric defrosting Hot gas defrosting
Castors
The LKPv and LGPv ranges come with castors as standard to allow easy and convenient cleaning
underneath and versatile use of the appliances in different rooms. The brake of the two front castors
provides a fi rm hold and ensures that the appliances cannot tip even if the grid shelves are extended.
The castors can be removed in order to transport the cabinets. Doing so the height of the cabinets will
be reduced by 13 cm.
Practical door
The doors remain open at 90° and are self-closing at less than 60° for convenient use. The integrated
lock is exceedingly sturdy and protects the stored products against unauthorised access. The door
hinges are interchangeable and the door seals are replaceable.
Infrared key with
documentation software
The alarm events and temperature
profi le data can be read out using the
infrared key available as an accessory.
Corresponding documentation software
is included enabling visualisation of the
read-out data on a PC.
Interface converter with
documentation software
A special interface converter including
documentation software is available
for central documentation of the
temperature profi le data and alarm
events of multiple appliances via the
RS 485 serial interface. Capability
is provided for interconnecting as
many as 20 laboratory appliances
and centrally documenting their
parameters.
NTC product temperature
probe
An NTC product temperature probe
for logging product temperatures
is available as a retrofi t kit for the
laboratory appliances with Profi
electronic controllers. The logged
product temperatures can either
be read by the electronic controller
or transferred to an external
documentation system via the existing
RS 485 interface.
Functional and practical accessories
U-shaped trayslides and
grid shelves
Additional U-shaped trayslides and
plastic-coated grid shelves can be
retrofi tted as required to provide extra
storage options. The robust grid
shelves have an extremely high
loading capacity of up to 60 kg.
10
11
Laboratory refrigerators and freezers with Profi electronic controller
Laboratory refrigerators and freezers
with Profi electronic controllers
LKPv 6523
with glass doorLKPv 1420 with solid doors
LKPv 6520
MediLine
LKPv 1423
MediLine
LKPv 8420
MediLine
* measured at +25°C ambient temperature and +5°C set temperature for fridges and -20°C for freezers
7113643
9005067
9005069
9590389
9590387
9590407
7112393
9001761
9001757
9590389
9590387
9590407
7112393
9001761
9001757
9590389
9590387
9590407
1427 l
1430 / 830 / 2150
1250 / 700 / 1550
3.923 kWh
dynamic
automatic
0°C to +16°C
steel / white
glass door
304-grade stainless steel
electronic controller
with data logger and text display
external digital
visual and audible
RS 485
•
8
grid shelves, plastic-coated
60 kg
castors with brake at the front,
castors at the rear
Handle moulding
•
•
284 / 229 kg
T
55 dB (A)
R 290
220-240 V~ / 3.0 A
Gross capacity
Exterior dimensions in mm (w/d/h)
Interior dimensions in mm (w/d/h)
Energy consumption in 24h*
General
Cooling system
Defrosting method
Temperature range
Housing material / colour
Door / lid material
Liner material
Type of control
Temperature display
Temperature and door open alarm
Interface
Volt-free contact
Interior light
Adjustable storage shelves
Usable shelf area in mm (w/d)
Shelf material
Shelf loading capacity
Castors
Handle
Lock
Self-closing door
Door hinges
Gross / net weight
Climate rating
Sound power level
Refrigerant
Voltage / Connection rating
Accessories
856 l
790 / 980 / 2150
620 / 850 / 1550
2.400 kWh
dynamic
automatic
-2°C to +16°C
steel / white
steel
304-grade stainless steel
electronic controller
with data logger and text display
external digital
visual and audible
RS 485
•
4
grid shelves, plastic-coated
60 kg
castors with brake at the front,
fixed castors at the rear
Handle moulding
•
•
right hand, reversible
187 / 154 kg
T
55 dB (A)
R 290
220-240 V~ / 2.0 A
601 l
700 / 830 / 2150
520 / 700 / 1550
1.775 kWh
dynamic
automatic
-2°C to +16°C
steel / white
steel
304-grade stainless steel
electronic controlle
with data logger and text display
external digital
visual and audible
RS 485
•
4
grid shelves, plastic-coated
60 kg
castors with brake at the front,
fixed castors at the rear
Handle moulding
•
•
right hand, reversible
158 / 132 kg
T
55 dB (A)
R 290
220-240 V~ / 2.0 A
Grid shelf, plastic-coated
U-shaped trayslide, right
U-shaped trayslide, left
Infrared key incl. software
Converter incl. software (serial connection)
NTC product temperature sensor
Also available as
immediately upon power failure
for 72hrs
LED lighting, with separate switch
1024 / 650
Power failure alarm immediately upon power failure
for 72hrs
600 / 800
immediately upon power failure
for 72hrs
512 / 650
LGPv 1420
MediLine
LGPv 8420
MediLine
LGPv 6520
MediLine
7112393
9001761
9001757
9590389
9590387
9590407
7113643
9005067
9005069
9590389
9590387
9590407
7112393
9001761
9001757
9590389
9590387
9590407
1) The temperature range is valid at a maximum ambient temperature of +30 °C.
1427 l
1430 / 830 / 2150
1250 / 700 / 1550
8.887 kWh
dynamic
automatic
-10°C to -26°C
steel / white
steel
304-grade stainless steel
electronic controller
with data logger and text display
external digital
visual and audible
RS 485
•
grid shelves, plastic-coated
60 kg
castors with brake at the front,
castors at the rear
Handle moulding
•
•
262 / 219 kg
T
60 dB (A)
R 290
220-240 V~ / 4.5 A
856 l
790 / 980 / 2150
620 / 850 / 1550
5.500 kWh
dynamic
automatic
-10°C to -35°C
steel / white
steel
304-grade stainless steel
electronic controller
with data logger and text display
external digital
visual and audible
RS 485
•
grid shelves, plastic-coated
60 kg
castors with brake at the front,
fixed castors at the rear
Handle moulding
•
•
right hand, reversible
197 / 164 kg
T
60 dB (A)
R 290
220-240 V~ / 4.0 A
601 l
700 / 830 / 2150
520 / 700 / 1550
4.715 kWh
dynamic
automatic
-10°C to -35°C
steel / white
steel
304-grade stainless steel
electronic controller
with data logger and text display
external digital
visual and audible
RS 485
•
grid shelves, plastic-coated
60 kg
castors with brake at the front,
fixed castors at the rear
Handle moulding
•
•
right hand, reversible
171 / 143 kg
T
60 dB (A)
R 290
220-240 V~ / 4.0 A
immediately upon power failure
for 72hrs
8
1024 / 650
1)
immediately upon power failure
for 72hrs
4
600 / 800
1)
immediately upon power failure
for 72hrs
4
512 / 650
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