Buchi Rotavapor R-220 Pro Continuous - Page 25

4 Description of function
25 R-220 Pro Continuous Operation Manual, Version A
Vacuum / gas circuit
1
Vacuum pump (recommended type:
Vacuum Pump V-600)
For most applications a vaccum is used to signicantly reduce
the boiling point of the liquid content inside the evaporating ask.
2 + 3
Aeration / inert gas inlet at the
Vacubox
The aeration valves at the optional vacuum controller and
the aeration valve of the Rotavapor
®
are used to aerate the
Rotavapor
®
.
Under inert conditions, both aeration inlets must be connected
to an inert gas source with regulated output pressure equal to
ambient air pressure!
4
Vacuum sensor tube at vacuum
controller
If a Vacuum Interface I-300 Pro is installed, a tube connec-
tion must be established to detect the vacuum level inside the
glassware.
Cooling medium circuit
a
Chiller or cooling water tap (optional
with cooling water valve)
When a chiller is used, up to 300 liters of mains water can be
saved a day during operation. In addition, higher process safety
and lower solvent emissions due to the constant, low cooling
temperature can be achieved.
The cooling water valve can also signicantly reduce cooling
water consumption by cutting o the water supply when no
cooling is necessary.
b
Water ow sensor Detects cooling water ow when installed.
c
Flow reducing valve The valve can be used to reduce the cooling water ow to
achieve the best cooling to water consumption ratio.

Cooler(s) Depending on the type of glassware conguration, one or more
coolers can be connected in serial.

Cooling water output to sink / return
loop to chiller
The warmed cooling water can be disposed of into a sink or
reused in a closed cooling cycle when a chiller is used.

Replenishment water tap For safety reasons the replenishment water tap must not be
connected when a heating medium dierent to water is used!