Buchi Rotavapor R-220, Руководство пользователя

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BÜCHI Rotavapor R-220
4 Putting into Operation
4.12 Operating the Shut-off tap
The shut-off tap is of a special design. It does not have a
continuous thread on its inside for tightening it, but rather a
sliding plane with two fixed latching positions. The closing pres-
sure when it is in a closed position is provided by a prestressed
spring.
• Insert the shut-off tap on the distribution head and turn
the white lower section of the grip
햲
clockwise until the
shut-off tap is tightly seated.
• To open:
Turn the gray upper section of the grip
햳
clockwise until
the shut-off tap latches into the 1 st position.
If the opening is not large enough, continue turning until
the shut-off tap reaches the 2
nd position.
4.13 Bath Replenishment (Optional)
햲
Bath replenishment inlet
Hose nipple, Diam.14 mm
햳
Bath replenishment outlet
Hose nipple, Diam.14 mm
Opening the needle valve
햴
slightly by one-quarter turn pro-
duces a continuous supply flow.
Introduce the Open/Shut valve supplied with the unit into the
bath replenishment inlet
햲
and connect it to “CW Valve” on
the back wall of the unit. This interrupts the replenishment of
the bath when rotation stops.
The installation of the water valve is described in chapter
8, Replacement Parts, Water Valve.
If oil is used as heating medium, the bath replenishment
has to be emptied and disconnected from the water inlet.
Otherwise, there is a risk of water pouring into the hot oil
bath.
Operating Instructions!
When rotation stops, the cooling water and bath replenishment
water switch OFF after short delay. As soon as rotation starts,
the valve reopens and the water flows once again.
Fig. 19: Shut-off tap
Fig. 20: Bath replenishment
햲
햳
햴
Fig. 21: Bath replenishment
햲
햳
햳