Laboratory – Liebherr GGU 1550 Premium User Manual
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Elektroabtauung
Heißgasabtauung
30 min
10 min
Demand-responsive hot-gas defrosting prevents unnecessary defrosting, which saves a
great deal of energy. This highly efficient defrosting method guarantees short defrosting
times of about 10 minutes. During defrosting, hot-gas released from the conventional
refrigeration cycle is used to defrost the iced evaporator. This keeps the temperature
increase inside Liebherr laboratory appliances to a minimum during defrosting, increas-
ing temperature stability and consistency.
Interior temperature increase during the hot-gas defrosting process:
■
Hot-gas defrosting: from 5 °C bis 6,5 °C = 1,5 K
■
Electric defrosting: from 5 °C bis 9,0 °C = 4,0 K
Condensate water from the refrigeration system is vaporised using excess and free
heat energy from the compressor. The intelligent design and layout of the Liebherr
vaporiser on the heavy-duty models is simple, corrosion-free and ultra-reliable and is
also highly energy-efficient.
Demand-responsive hot-gas defrosting
Hot-gas condensate vaporiser
Laboratory
In the laboratory and medical sectors refrigerators and freezers
have to meet the most stringent standards and safety requirements.
Liebherr appliances designed for these sectors are renowned for their
compliance with all relevant safety standards and their outstanding
energy efficiency. Top quality materials, high-performance components,
and precise workmanship down to the smallest details guarantee the
superb quality and reliability of Liebherr appliances.
Electric defrosting
Hot-gas defrosting
Laborator
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