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Installation
S149-01-880 Issue F
3 Installation
3.1 Safety
Ensure that the Microvac pump is suitable for the application. Refer to the Edwards guidelines on vacuum pump and
vacuum system safety (see the associated publications at the end of the Contents list at the front of this manual).
Installation of the Microvac pump must be performed by a suitably trained and supervised technician. Obey the safety
instructions listed below when the pump is installed, especially when connecting the pump into an existing system.
Details of specific safety precautions are provided at the appropriate point in the instructions.
z Wear appropriate safety clothing when there is potential for contact with contaminated components.
z Vent and purge the vacuum system before installation work is started.
z Ensure that the installation technician is familiar with the safety procedures which relate to the pump oil
and other products handled by the pumping system. Take suitable precautions to avoid the inhalation of oil
mist and excessive skin contact with pump oil, as prolonged exposure can be harmful.
z Disconnect the other components in the pumping system from the electrical supply to prevent accidental
operation.
If you use a hydrocarbon oil in this pump, you must not use the pump to process oxygen in
concentrations greater than 25% in volume. If you do, there is a risk of fire or explosion in the
oilbox of the pump.
Ensure that the exhaust pipeline cannot become blocked. If an exhaust isolation valve has been
installed, ensure that the pump cannot be operated with the valve closed.
The Microvac pumps are only approved for use on applications using air, nitrogen and other inert
gases.
Do not pump oxygen, hydrogen, chemically active, corrosive or flammable gases or gas mixtures,
the presence of which can result in an explosion.
Refer to the Mechanical Pump and Pumping System Safety Chemical and Industrial Vacuum Systems
Safety Manual (supplied with the pump), Edwards Publication Number P400-40-100 for
recommendations.
Consult Edwards for specific applications assistance prior to operating the pump for hazardous
applications.
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