Installation and connection
20901118_EN-US_PC301x VARIO select Serie_V1.3_100720
33
4.4.2 Exhaust gas connection (EX)
WARNING
Risk of bursting due to overpressure inside the
outlet line.
Inadmissibly high pressure in the outlet line can cause
the vacuum pump to burst or damage seals.
Ø
The outlet line (outlet, gas outlet) must always be
clear and non-pressurized.
Ø
Always route the exhaust gas hose with a fall or take
measures to prevent condensate return into the vac-
uum pump.
Ø
Observe the maximum admissible pressures and
pressure differences.
Connect the exhaust gas hose
-> Example
Exhaust gas con-
nection at outlet EX
1. Connect rubber sealing ring
(a)
, hose nozzle
(b)
and union
nut
(c)
as shown and screw them onto the connection.
2. Push exhaust gas hose
(d)
onto the hose nozzle and, if
necessary, lay the hose in a fume hood. Secure the exhaust
gas hose if required, e.g., with a hose clip.
4.4.3 Coolant connection at the condenser
Coolant connection
IN = feed line
EX = outlet
A vapor condenser (EK) has a connection for coolant. For ex-
ample, water or liquid in a chiller circuit is suitable for cooling.
