Installation; Safety; System Design - Edwards E1M18 Instruction Manual

4. Installation

4.1 Safety

WARNING:
Ensure that the installation technician is familiar with the safety procedures which
relate to the pump oil and the products handled by the pumping system.
WARNING:
If a hydrocarbon oil is used in this pump, do not use the pump to process oxygen in
concentrations greater than 25% in volume. If the oxygen concentration is greater
than 25%, There is a risk of fire or explosion in the oil-box of the pump.
WARNING:
Do not use the pumps to pump hazardous substances.
WARNING:
Obey the safety instructions listed below and take note of appropriate precautions.
Failure to do so can cause injury to people and damage to equipment. Prevent any
part of the human body from coming into contact with the vacuum.
▪ Wear the appropriate safety clothing when coming into contact with contaminated
components is anticipated. Dismantle and clean contaminated components inside
a fume cupboard.
▪ Vent and purge the vacuum system before installation work is started.
▪ Take suitable precautions to avoid the inhalation of oil mist and excessive skin
contact with pump oil, as prolonged exposure can be harmful.
▪ Disconnect the other components in the pumping system from the electrical
supply so that they cannot be operated accidentally.
▪ Safely route any electrical supply cables so that they cannot accidentally trip
people.
▪ Ensure that the pump is suitable for the application. If in doubt as to the suitability
of the pump for the application, refer to our guidelines on vacuum pump and
vacuum system safety (refer to the Associated Publication at the end of the
contents list at the front of this manual) or contact us for advice.

4.2 System design

Consider the following points when designing the pumping system:
▪ We recommend the use of a foreline vacuum isolation valve to allow the pump to
warm up before pumping condensable vapours or if a vacuum needs to be
maintained when the pump is not running.
A34310880_T - Installation
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