A366-04-880 Issue A
Page 12 © Edwards Limited 2014. All rights reserved.
Edwards and the Edwards logo are trademarks of Edwards Limited.
Installation
3.3 Unpack and inspect
Remove all packing materials, remove the pump from its packing-box, remove the protective covers from the inlet
and outlet-ports and inspect the pump. If the pump is damaged, notify your supplier and the carrier in writing within
three days; state the Item Number of the pump together with your order number and your supplier’s invoice number.
Retain all the packing materials for inspection. Do not use the pump if it is damaged.
If the pump is not to be used immediately, replace the protective covers. Store the pump in suitable conditions, as
described in Section 6.1.
3.4 Locate the pump
Attach your mechanical lifting equipment to the lifting eyes on the pump.
Provide a firm, level platform for the pump. Locate the pump so that the oil-level sight-glass is visible and the oil
filler-plug, oil drain-tap, disposable oil-filter and gas-ballast control are accessible. You must ensure that at least
330 mm is allowed, to withdraw the oil-filter from the pump.
If your pump will be located inside an enclosure, make sure that there is adequate ventilation at both ends of the
pump. There must be a minimum space of 25 mm between the pump and the enclosure walls.
In addition, ensure that the location of the pump and the intended routing of connecting parts i.e. process line,
exhaust line and power cables will not present any physical hazards. For example: trip hazards to personnel.
3.5 Connect the pump to the cooling water
Connect the two 3/8 in. BSP internally threaded connections to the cooling water supply. The maximum pressure
that can be admitted to the cooling circuit is 3 bar and the recommended minimum cooling water supply flow rates
at 20°C are:
Your pump will reach optimum operating temperature and will operate more efficiently if the temperature is
controlled by the TCV300 thermostatic control valve. The control valve is available as an accessory – see Section 7.
A mounting point for the thermostatic probe is provided on the pump end-plate.
3.6 Fill the pump with oil
3.6.1 Recommended pump oils
It is recommended that you use the Edwards oils specified in Section 2.5 of this manual. Note that PFPE prepared
pumps are not supplied with oil. The ultimate vacuum of the pump with other oils may be higher than the ultimate
vacuum with the recommended oil. However, note that other oils may contain polymers which may be degraded
during use so that they become thinner. You will, therefore, have to change the oil more frequently than when you
use Edwards oils. If necessary, adjust the maintenance schedule according to your experience.
If you pump oxygen or other dangerous gases and vapours, you must use a chemically inert and stable oil (such as
perfluoropolyether). For information on pumping dangerous gases and vapours, refer to the Edwards guidelines on
vacuum pump and vacuum system safety (see Associated Publications at the end of the contents list).
Use suitable lifting equipment to move the pump. The mass of the pump is between 243 kg and
260 kg.
E2M175 80 l h
-1
E2M275 120 l h
-1
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