LGT 3725 MediLine Laboratory chest freezer with Comfort electronic controller

Gross capacity, total 350 l
Product dimensions (H/W/D) 90.5 / 137.9 / 78.7 cm
SmartMonitoring retrofittable, connectivity application available as option
Adjustable temperature range -10°C to -45°C

Pre-equipped SmartMonitoring

Pre-equipped SmartMonitoring

Liebherr SmartMonitoring offers a comprehensive solution for documenting and monitoring measurement and operating data, alarm messages and appliance statuses. The SmartCoolingHub required for this can be connected directly to this appliance via the pre-equipped RS 485 interface.

Alarm test function

Alarm test function

This test function can be used to check whether an internally or externally connected alarm system is functioning correctly. The appliance’s refrigeration performance is not affected by this test.

Efficient refrigeration system

Efficient refrigeration system

Liebherr guarantees the outstanding quality of its refrigeration systems through expertise derived from decades of experience in the refrigeration technology sector, and through continuous research and development. By employing only premium-quality compressors, condensers, evaporators and other refrigeration components the energy consumption and operating costs of Liebherr appliances are significantly reduced.

Premium-quality lid seal

Premium-quality lid seal

Uniform closure of the freezer is guaranteed thanks to the flexible lid seal. It prevents cold air escaping from the appliance and so enhances its energy efficiency. The seal is made from a highly resilient, long-lasting material and its performance is unaffected by temperature fluctuations. It is easy to clean and extremely hygienic.

Serial bus interface

Serial bus interface

A serial bus interface can be used to connect appliances to an external monitoring system. If there is no monitoring system that can be connected via the interface available, an interface converter retrofitting kit (which connects with a PC or laptop) can be obtained as an optional accessory. The bus interface can be used to serially connect and network up to 20 appliances. Temperature and alarm details can be documented and archived using Liebherr's Temperature Monitoring software.

Temperature stability and consistency EN 60068-3

Temperature stability and consistency EN 60068-3

All laboratory refrigerators and freezers are tested at the state-of-the-art Liebherr development facilities according to procedure EN 60068-3 for measuring temperature stability. This involves measuring the temperature at nine different points in the appliance interiors.

Environmentally friendly refrigerants

Environmentally friendly refrigerants

Liebherr appliances are optimised for maximum energy efficiency and low operating costs. We only use the natural and environmentally-friendly refrigerants R 600a and R 290. When used with highly efficient compressors, these are extraordinarily efficient and, with their low global warming potential, also future-proof.

Product group output channels Laboratory chest freezer with Comfort electronic controller
GTIN 9005382230893
Energy consumption per year 1,069 kWh/a
Net capacity, total 332 l
Freezer compartment 332 l
Gross capacity, total 350 l
Refrigerant R 290
Cooling system, freezer compartment static
Defrosting freezer compartment manual
Voltage 220-240 V ~
Frequency 50 Hz
Connection rating 3.0 A
Product dimensions (H/W/D) 90.5 / 137.9 / 78.7 cm
Insulation 100 - 100 mm
Weight (with packaging) 80.00 kg
Weight (without packaging) 68.00 kg
Control Electronic control system
Adjustable temperature range -10°C to -45°C
Temperature display external digital
potential-free contact
Power failure alarm when mains power returns
Maximum fluctuation 2.2 °C
Gradient 4.3 °C
SmartMonitoring retrofittable, connectivity application available as option
Side wall material steel
Colour White
Cover frame colour white
Door/Cover material Steel
Type of lock fitted
Material of interior containers aluminium, white-coated
Type of castors
Water drain
Handle Aluprofil
RS 485 connection cables

RS 485 connection cables

Art. no. 941492700

The 5 metre long connection cable connects your professional Liebherr appliances with the SmartCoolingHub. It is ModBUS fitted and the 3 wire connection fits exactly into the connection plug’s RS 485 interface. If you connect multiple appliances to the SmartCoolingHub, you need an additional cable for each additional appliance.

SmartCoolingHub

SmartCoolingHub

Art. no. 612521901

With its 36 month licence for one cooling appliance, the SmartCoolingHub forms the basis for connecting with up to 20 professional Liebherr appliances. It is connected with the network and sends the appliance data to the Liebherr cloud. If the internet connection is interrupted, the buffer memory records all appliance data for up to 48 hours.

36-month SmartMonitoring licence key subscription

36-month SmartMonitoring licence key subscription

Art. no. 708064800

With the licence, you can use all basic functions of SmartMonitoring for a measuring point for 36 months. Create and send standard reports on the recorded temperatures and receive alarm notifications by e-mail. Access the basic functions using the dashboard and grant access to as many users as you like.

36-month SmartMonitoring licence key subscription (online)

36-month SmartMonitoring licence key subscription (online)

Art. no. 708065000

With the licence, you can use all basic functions of SmartMonitoring for a measuring point for 36 months. Create and send standard reports on the recorded temperatures and receive alarm notifications by e-mail. Access all appliance data and the basic functions using the dashboard and grant access to as many users as you like.

SmartMonitoring text message/VC companies 36-month flat rate

SmartMonitoring text message/VC companies 36-month flat rate

Art. no. 708065200

If there is an alarm, this additional function ensures you are notified by text message or phone call so you can react quickly. You can easily configure how you receive text message/phone call notifications using the dashboard. You can use the text message flat rate for 36 months following activation and you will be notified well in advance of the licence expiring.

SmartMonitoring text message/VC companies 36-month flat rate (online)

SmartMonitoring text message/VC companies 36-month flat rate (online)

Art. no. 708065400

If there is an alarm, this additional function ensures you are notified by text message or phone call so you can react quickly. You can easily configure how you receive text message/phone call notifications using the dashboard. You can use the text message flat rate for 36 months following activation and you will be notified well in advance of the licence expiring.

RS 485 connection plugs

RS 485 connection plugs

Art. no. 602166100

To connect your professional Liebherr appliances with the SmartCoolingHub properly and reliably, you need the RS 485 connection plugs as well as the connection cable. An additional plug, which is attached to the connection cable, is needed for each additional appliance you want to connect to the SmartCoolingHub.

Please note: despite careful data management, we reserve the right to make technical changes; and discrepancies may occur between the image or text content and the original appliance.