BUCHI Extraction Unit E-816 HE - Manual (Page 23)

5 Putting into operation
23 E-812/816 Hot Extraction Operation Manual, Version B
5 .4 Water supply connections
The condensers have to be connected in series.
• Condensers connected in
series.
• Fixing the clamp. • Hose with pivoting connec-
tion and clamp.
First connect the cooling water hoses (two longer hoses) to the rear panel. Put a hose clamp over the
cooling water hose. Take a pincer to fix the hose clamp. Begin with the left condenser position. Put
it into the collection vessel (see chapter 5.3 Condensers) and connect the cooling water hoses (hose
clamp and GL-14 plug). To connect them among each other use the short hoses.
NOTE
Do not forget the grommet otherwise cooling water may leak.
• For safety reasons, secure the hoses with pivoting clamps.
• To save cooling water use a chiller.
5 .5 Cooling water connection
Connect the cooling water to the cooling water input a. The cooling water hose has to be secured
on both the instrument and the water connection side by means of hose clamps. The water pressure
should have a maximum of 4 bar. The built in valve reduces the water flow to 1.2 liters per minute.
The flanged screw coupling for the water connection has a standard screw thread of G 3/4“.
1
2
a Cooling water input
b Cooling water output
Fig. 5.2: Cooling water connection
Fix the silicon hose to the cooling water output b.The drain hose for the cooling water should be
placed directly into the drain. For this purpose, shorten the silicone hose to the optimal length. The
drain hose should not show any kinks, sharp bends and/or siphoning effect. Prevent flooding inside
and outside the instrument by securing the drain hose.
Check the cooling water hoses for bends.