Lauda PD 12 R, Operating Instructions Manual

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09/2020 Puridest Distillation Apparatus 11 / 30
7 Initiation
Before initial starting 7.1
Before initial starting, the Distillation Apparatus has to be hand-filled with water. To do so, remove the outer and left-hand
inner lids (marked L) as well as the deflector beneath the inner lid. Caution, when working on the deflector, make sure to
observe the correct position of the wire electrode in the container. It may neither be bent nor come into contact with the
housing. The boiler must now be filled with water until the heating element(s) at the bottom of the container are below
water level. The deflector as well as the two individually marked inner lids must be re-assembled and safely nested on the
containers before initiation of the unit.
Marking L Marking R
front of the front of the
left-hand inner lid right-hand inner lid
(boiler) (storage tank)
Initiation 7.2
To initiate the Distillation Apparatus after assembly of all power and water connec-
tions, open the hand-stop valve of the water mains supply
⑤
and switch on the
main switch (I). The first few litres of produced distillate should not be used. Dis-
card the first two to three complete fillings of distilled water in the storage tank.
I II III
To switch off the unit for longer down-times, first switch the main switch (I) to position O, and discon-
nect the unit from the mains. Close the on-site hand-stop valves of the water supply, then empty and dry
storage tank and boiler in order to avoid germ contamination.
8 Functional Description
LAUDA-GFL Distillation Apparatuses Puridest work automatically. After switching on the Distillation Apparatus main
switch, the green pilot lamp in the main switch (I) as well as the right-hand, yellow operation pilot lamp (III) will light up.
The built-in solenoid valve opens. Water flows through the cooling coil in the storage tank and a mechanical water level
regulator that controls the water level in the boiler. Excess water that is not used to evaporate, runs off through the cooling
water outlet. The heating elements are powered on and bring the water in the alembic to the boil. A thermostatic low water
cut-off protects the heating elements from dry running. The produced steam is led through a steam tube to the cooling
coil where it condenses and drips as distillate into the storage tank.
The water level in the storage tank (right-hand container) is controlled through a wire electrode. Once the container is full,
the Distillation Apparatus will be switched off by an electronic controller. The solenoid valve interrupts the cooling water
supply, the heating elements are switched off and the yellow pilot lamp (III) goes out. Distillate is withdrawn through the
black plastic tap at the front of the unit.
After withdrawal of distillate, the unit will be switched on again automatically, so that the storage tank is refilled.
Carbon dioxide is degassed through a vent on the top of the unit.
DOMINIQUE
DUTSCHER
SAS