PERFECT page 36
16. Automatic defrost on ICP incubators
The integral automatic defrost of the refrigeration unit ensures perfect operation of your ICP cooled
incubator even with continuous operation at low temperatures. The timing of the automatic defrost are
set in the submenu
SETUP
under Defrost.
During long-term operation at a working temperature below +15°C or with a moist load and/or frequent
opening of the door it is possible for ice to form in the chamber in the course of time. Severe icing interferes
with the function of your ICP incubator. In that case it is advisable to defrost the chamber. This can be
done by brief heating (30-40°C) or by switching off the incubator for a longer period, e.g. overnight. The
resulting melt water is best collected in a cloth at the front edge of the chamber. The smooth chamber
walls can then readily be cleaned.
Automatic defrosting causes a brief and slight increase in the chamber temperature at regular intervals. If
you want to reduce this inconvenience still further you can reduce the defrosting frequency, e.g. every 24
hours.
In that case please check whether there is a gradual reduction in cooling capacity and pronounced variation
in the actual temperature which would suggest icing up of the refrigeration unit. In that case please
increase the automatic defrost by one step.
With a particularly high humidity or ambient temperature it is a possibility in a few situations that the
factory setting of defrosting every 12 hours is not sufficient. In that case please set a more frequent defrost,
e.g. every 6 hours.
Automatic defrosting can be de-activated with the parameter OFF. When operating at low temperatures
this leads to icing up of the refrigeration unit in the course of time. It is important to ensure regular
defrosting in order to avoid damage to the refrigeration system.
Defrosting adjustment setup
Defrosting
intervals
Defrosting
duration
off
48h 80sec.
24h 130sec.
12h 180sec.
6h 230sec.
3h 300sec.
To Next Page
Loading...
