Specifications

MT-01 Indice 0 Page 8
The best way to determine a meaningful diagnosis is to fit a temperature recorder for 24 to 48 hours.
The curve clearly illustrates the average temperature and the corresponding fluctuations linked to
the shut-down and start-up periods of the compressor or winter system (refer to the section on the
winter system).
Also place a submersible thermometer in a bottle filled with water to determine the exact
temperature of the liquid.
This enables the explanatory drawings below to be illustrated precisely.
In all cases, where the winter system is implemented, the element located at the bottom of the
device generates a light mixture within the chamber, which momentarily eliminates the usual
separation between the various temperatures thanks to a natural convection phenomenon (hot air
is lighter than cold air). As soon as the compressor generates cold air, the separation between the
temperatures returns naturally.
5. Operating principles: winter system
This system enables any temperature fluctuations resulting from a severe winter to be compensated
in an unheated environment that most importantly is frost protected. If the unit is not frost
protected, the element does not have enough power to fight the incoming cold.
In all cases, where the winter system is implemented, the element located at the bottom of the
device generates a light mixture within the chamber, which momentarily eliminates the usual
separation between the various temperatures in multi-purpose models thanks to a natural
convection phenomenon (hot air is lighter than cold air).
The system comprises a thermostat that is preset at the factory, a sensor which depending on the
model is located below the top panel of the device, on the outside (on the rear of the device) or even
on the inside, and a heating element inserted in the foam below the start-up compressor or glued
behind the vaporizer (on multi-purpose models) in the internal tank.
The winter system will start up as soon as the ambient temperature recorded by the sensor at the
top of the device reaches around 8°C (preset at the factory). On models equipped with Intelitherm as
well as DIVA models, the setting is controlled electronically by the customer.
The element will then gradually reheat the inside of the cabinet to restore it to a value close to 12°C
(+/-2°C) even before the heat exchange affects the content of the bottles.