LEYBOLD VARODRY CD200, Operating Instructions Manual

Page: 14 / 52

5 Installation
Figure 3. Connections and controls
1. Cooling air - out 2. Inlet flange
3. Cooling air - out 4. Exhaust flange
5. Purge gas port (optional) 6. Electrical feedthroughs
7. Lifting eye 8. Cooling air - in
1. Cooling air - out 2. Inlet flange
3. Cooling air - out 4. Exhaust flange
5. Purge gas port (optional) 6. Electrical feedthroughs
7. Lifting eye 8. Cooling air - in
5.1 Placement
The cooling air intake and outlets must not have a blockage to prevent
insufficient cooling of the pump. Refer to
Figure: Connections and
controls .
5.2 Conforming use
The pump is designed for use in light and medium industrial applications.
The pumps are capable to handle small amounts of dust and liquids,
however the use of inlet filters or liquid traps is recommended in such cases.
They are not hermetically sealed and will release small amounts of pumped
gases to ambient even if the exhaust port is connected to an exhaust
pipework. They are suitable for pumping water steam or vapours
continuously at a suction pressure range of 0.01 mbar to 1050 mbar as well
as for cyclic pump operations within this pressure range.
If you use the pump to handle Oxygen, take note of the following:
▪ To avoid hazardous oxygen concentrations outside the pump, you
must use the seal purge on the exhaust side of the pump. Refer to
Purge gas/Gas ballast connection (optional) on page 17.
▪ The pump must be tightly connected to an exhaust pipework to
discharge the pumped gas safely. Make sure that the exhaust pipe is
tightly connected to the pump and the exhaust pipework.
▪ If the amount and concentration of oxygen pumped is considered to
be safely discharged directly from the pump (room ventilation is
sufficient) the pump can be operated without being connected to an
exhaust pipework. The user is responsible to do a risk assessment and
decide on the use of exhaust pipework..
300766038_002_C3 - 09/2021 - © Leybold
14
Installation