VACUUBRAND PC 620 NT plastic housing - Manual (Page 39)

page 39 of 113
Assembling the hose nozzle with union nut
(PC 510/610 NT):
➨
Take the hose nozzle with attached compression fer-
rule and union nut out of the catchpot and put onto
inlet connection.
➨
Tighten the union nut by hand until you can feel the
stop. Then tighten an additional 1/4 rotation with an
open-ended wrench (size 17mm) for final installation.
Connection of components at the controller
At the rear side of the pumping unit and at the
rear side of the second controller (only PC
520/620 NT) are VACUU•BUS jacks for con-
nection of accessory components: in-line valve
/ coolant valve / external pressure transducer
/ external venting valve / level sensor / emis-
sion condenser Peltronic etc.
+
Plug the VACUU•BUS lines of accessory
components into the VACUU•BUS jacks. Do
not apply off-axis forces when assembling
or removing plug connections! Observe cor-
rect orientation of the plugs.
Catchpots:
The catchpot at the inlet protects against drop-
lets and particles from entering the pump.
+
Enhances lifetimes of diaphragms and
valves.
+
Improves vacuum performance in applica-
tions with condensable vapors.
Both catchpots are coated with a protective
layer to protect against shattering in case of
breakage or implosion.
➨
Assemble the catchpots at the inlet and at
the outlet using joint clips.
catchpot at
the outlet
catchpot at
the inlet
(9)