Catering & bakery – Liebherr GGU 1550 Premium User Manual
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Elektroabtauung
Heißgasabtauung
30 min
10 min
In a professional environment, where freshness is of paramount
importance, refrigerators and freezers are subject to particularly high
demands. Liebherr has developed a special product range specifically
for use in kitchens and bakeries, combining refrigeration proficiency
and quality materials have been brought together. Liebherr professional
appliances are designed for maximum storage capacity and to
work efficiently even with frequent door openings and in the hottest
environments. Liebherr’s combination of excellent refrigeration
performance, superb workmanship down to the last detail, and
specialised features meets the most stringent professional requirements.
Catering &
bakery
Demand-responsive hot-gas defrosting
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 appliances to a minimum during defrosting, increasing tem-
perature stability and consistency.
Interior temperature increase during 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.
Hot-gas condensate vaporiser
Catering & baker
y
Electric defrosting
Hot gas defrosting