© Edwards Limited 2007. All rights reserved.
Page 13
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In
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A730-01-880 Issue E
3.5.2
Connect the pump to your electrical supply
The following fuse ratings should be used (refer to
Table 7
).
CAUTION
If using an overload circuit breaker it must be of a time lag type because of high start up current.
CAUTION
If using an earth leakage device e.g. an RCD, use at least a 30 mA rated unit to avoid trip during start up.
The pump will automatically restart after restoration of the power supply following power failure.
Make the electrical connections to the pump motor with an IEC60320 cable socket (C19) that satisfies your local
electrical standards.
3.6
Inlet and outlet connections
Refer to
Figure 1
. Before you connect the pump to your vacuum system, remove the plastic cap from the inlet and
the exhaust, and ensure that the inlet strainer is fitted to the pump inlet port. Use appropriate NW40 vacuum fittings
for connection to your system.
Take note of the following information when you connect the pump to your vacuum system.
z
To minimise noise and exhaust emissions, it is recommended that the pump is connected to an exhaust line
or a silencer (refer to
Section 7.3.2
).
z
For optimum pumping speeds, ensure that the pipeline connected to the pump inlet is as short as possible
and has a suitable internal diameter.
WARNING
Ensure that the electrical installation of the XDS pump conforms with your local and national safety
requirements. It must be connected to a suitably fused and protected electrical supply with a
suitable earth point.
Table 7 - Recommended fuses
Area
Voltage
Rating
UK
230 V
13 A
Europe
230 V
16 A
US
110 V
20 A
Japan
100 V
20 A
WARNING
If pumping dangerous gases or vapours, connect the exhaust to a suitable treatment plant to
prevent the discharge of dangerous gases and vapours to the surrounding atmosphere.
WARNING
If pumping for a prolonged period above 100 mbar inlet pressure, use an exhaust silencer (refer
to
Section 7.3.2
) or connect to an appropriate exhaust line.
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