© Edwards Limited 2009. All rights reserved.
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Installation
B800-00-880 Issue A
3
Installation
3.1
Unpack and inspect
Take care when you unpack the pump to avoid excessive shocks that could damage the bearings and reduce the life
of the pump. The pump is supplied with the inlet and outlet sealed to prevent entry of dust and vapour. Do not
remove these seals until you are ready to install the pump on your vacuum system.
Remove all packing materials and check 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 packing materials for inspection. Do not use the pump if it is damaged.
Check that your package contains the items listed in
. If any of these items is missing, notify your supplier
in writing within three days.
If the pump is not to be used immediately, store the pump in suitable conditions, following the procedure described
in
.
Do not discard the packing materials; retain them to re-package the pump should you need to return it for service.
3.2
Typical installation
A typical pumping system with a nEXT pump is shown in
.
The accessories available for the nEXT pumps are detailed in
; the accessories are shown in
and
WARNING
The controller cable should not be used as a lifting device. Do not attempt to lift or support the
pump using the cable.
WARNING
Take care and use safe lifting practices when manually handling the pump.
WARNING
The inlet screen is a coarse filter for debris and should not be used as a finger guard
Table 16 - Checklist of components
Quantity
Description
Check (
)
1
nEXT pump with inlet-screen fitted (fitted to CF pumps only)
1
Inlet seal (either trapped O-ring with integral inlet screen, Co-
seal or copper compression gasket suitable for the inlet-flange
type)
1
Connector (24 V) - for driving accessories from Controller socket
1
Inlet-strainer (fitted in the NW25 interstage and booster port
only)
Summary of Contents for nEXT240
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