Theory Of Operation - felisa FE-390 Instructivo De Operación

NOTAS IMPORTANTES
Antes de realizar cualquier labor de mantenimiento desconecte el Destilador de la corriente
eléctrica bajando el switch. Siempre verifique que el agua de alimentación sea lo mas limpia
posible y no contenga partículas o lama, de lo contrario se tapará rápidamente el cartucho de
resinas. Variaciones de voltaje pueden dañar los componentes electrónicos.
O W N E R´S M A N U A L F O R W A T E R S T I L L S
The care you take in reading and following this instructions will determinate the satisfactory
service you will receive from your Water Still.
UNPACKING
Carefully remove the Still from the shipping case. Preserve all paper work for future reference.
If damage has occurred from shipment a claim must be filed with the carrier immediately;
preserve the shipping container for inspection by the carrier. Contact your Dealer or Felisa.
INTRODUCTION
Felisa Water Still are available in three sizes: 3.5, 7 and 18 liters per hour. The distilled water
produced by the Still contains no more than 1.5 ppm total solid, with a pH value of 5.4 to 7.2
and an electrical resistance of no less than 300,000 ohms at 25 °C when the Stills are
operated with potable water.
INSTALLATION
Install your Still using a connection of the adequate voltage. See the label specification before
connecting. The Still can be installed on any surface sufficiently firm and strong, leaving a
minimum space of 15 cm between the Still and any other vertical surface. Keep the area
around free of any material to allow ventilation in the bottom area. For its correct operation is
necessary that the user becomes familiarized with all the available controls and specifications
shown in each model.

THEORY OF OPERATION

The evaporator (1) holds the water during the evaporation process. Electric heating elements
immersion type (15) are inserted in the evaporator to boil the water and generate steam,
which is condensed by the condenser (2) to form the distillate.
The water to be purified enters the condenser by (29) passing first by Demineralizer (18) then
is heated by the steam from the evaporator (1), this preheated water is fed to the evaporator
as required by the constant level device (6), which maintains the proper level in the
evaporator. An overflow connected to the drain is provided for the excess cooling water.
The condenser is vented to atmosphere to eliminate the gaseous impurities, all Stills are
equipped with a deconcentrator and an extra high evaporator to permit operating a Still from
a hard water supplies. The deconcentrator automatically maintains a minimum
concentration of dissolved impurities in the evaporator, thus reducing to a minimum the
scale formation and tendency to foam.
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