© Edwards Limited 2008. All rights reserved.
Page 11
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Installation
B777-00-880 Issue E
3.2
Typical installation
A typical pump system with an EXT555H pump is shown in
.
The accessories available for the EXT555H pump are detailed in
. The accessories are shown in
3.3
Connection to the vacuum system
Carefully remove the pump from packaging media and connect to the vacuum system.
3.3.1
Inlet screens (supplied fitted)
CAUTION
Removal of inlet screens could allow debris to fall into the pump, which could cause serious damage to the pump.
Do not remove inlet screens unless you can be sure that there is no danger that debris can fall into the pump. If the
inlet screens are removed, the pumping speed through the inlet will increase by 11% for a coarse and 17% for a
fine screen.
To remove the inlet screen, undo the three screws ('A') which hold it down (
). If you need to replace the inlet
screen, do so by undoing these screws, changing the inlet screen, and replacing the screws. Ensure that screws are
firmly tightened.
CAUTION
Do not remove the three screws which retain the locking plate ('B' in
). If you do so the pump settings
may change and the pump may cease to operate or have a shortened life.
WARNING
Install the pump on the vacuum system before you connect the controller to the power supply.
This will ensure that the pump cannot operate and injure people during installation.
WARNING
Removal of inlet screens will expose people to the risk of injury from sharp edges.
