Defrosting; Maintenance - Indel Webasto Isotherm BI29 Dual Installations- Und Wartungsanleitung

User Manual

2.3 Defrosting

Since the evaporator operates at temperatures well below freezing, ice and frost will
inevitably form upon it.
The humidity in the air, the temperature and the number of times the door is opened
will have a significant impact on frost formation.
The refrigerator should always be defrosted when the layer of frost on the evaporator
reaches a thickness of 3-4 mm or more.
Turn off the refrigerator by turning the thermostat to its 0 position.
Defrosting should be performed when the products can remain as cool as possible
outside of the refrigerator itself. Do not use sharp objects to remove ice and frost from
the evaporator, as this could damage it and result in leaks.
Only turn the refrigerator back on once it has been defrosted, cleaned and thoroughly
dried. Some models are equipped with a hole at the base of the inside drawer to
facilitate condensate discharge. A towel can be placed at the base of the refrigerator
during the defrosting procedure in order to facilitate water collection.

3. Maintenance

Isotherm Built-In refrigerators are equipped with closed cooling systems, which do not
require maintenance or refrigerant refills.
The compressor is specifically designed for mobile applications and guarantees
maximum performance and durability. In the winter, the refrigerator must be stored
inside the vehicle, but the compressor will not work at temperatures near or below
0°C. Seasonal maintenance is limited to the cleaning of the condensing unit behind
the refrigerator. In particular, it is necessary to brush/vacuum out all the dust that has
accumulated due to the fan. This can be done using a soft brush and a vacuum cleaner.
It is important to keep the inside of the refrigerator clean by washing it with warm
water and mild soap and by drying any water/condensation that may be encountered.
In order to prevent damage to the electrical/mechanical components and/or the
formation of mould, when shutting off the refrigerator for extended periods of
time it is necessary to wait for the unit to defrost completely and to eliminate any
condensation that may have formed. The natural defrosting time can vary from a few
minutes to several hours. In the wintertime and when the refrigerator is shut off, the
door should be left slightly ajar for ventilation and all power disconnected.
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