Distillate; Draining; Cleaning; Maintenance - Marienfeld DEST35 Manual De Instrucciones

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04/2018

5.4 Distillate

The drain of distillate is made by means of the distillate drain C. Please take care
that, before putting the appliance into operation, the tubing nipple is pulled out
from the distillate as far as possible.
For the first operation discard the first 5 litres of distillate.
To secure the purity of the distillate lead it into a suitable container by means of a
PTFE tube. This container is not part of the delivery.

5.5 Draining

To discharge the boiling unit, close the aeration cap D and then close the water
outlet B with a suitable stopper or pinchcock. As soon as the heating has switched
off, turn on the tap water a bit more for some seconds and then turn it off
completely. The content of the boiling unit drains off.
To remove the liquid completely, tilt the appliance to the side and drain off the rest
of liquid through the re-opened water outlet B.
Attention: Avoid lateral knocking – risk of glass breakage!

5.6 Cleaning

The lime residues resulting from evaporation of water can be removed with a
special lime solvent or 10 % formic acid.
For this purpose the water in the boiling unit has to be drained off (see point 5.5).
Insert a glass funnel in the aeration nozzle D, close the water outlet B with a suitable
stopper or pinchcock and fill in the lime solvent. Then start re-supply.
To accelerate the procedure of dissolving switch on the heating for a moment or let
the solvent take effect overnight.
Attention: Be careful when using a caustic lime solvent.
Draining is to be made as described in point 5.5. Then rinse several times with water
(approx. 5 times).

5.7 Maintenance

The appliance does not need any maintenance except the regular removing of the
lime residues. Please consider that there is a natural ageing of several elements. In
case of any questions, please let us know the type of your equipment and the
fabrication number.
Paul Marienfeld GmbH & Co. KG
Am Wöllerspfad 4
97922 Lauda-Königshofen, Germany
Tax number: 8028008501
VAT reg. no.: DE 811 479 105
Phone: +49 (0) 9343 6272-0
Deutsche Bank Würzburg
Fax: +49 (0) 9343 6272-25
IBAN: DE95 7907 0016 0130 0888 00
info@marienfeld-superior.com
SWIFT: DEUT DE MM 790
www.marienfeld-superior.com
Commercial Register Mannheim HRA 550306, personally liable
partner: Marienfeld-Verwaltungs-GmbH, 97922 Lauda-Königshofen
Commercial Register Mannheim HRB 560548, Managing Directors:
Gerd Marienfeld, Harry Marienfeld
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