A590-00-880 Issue D
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Installation
z Incorporate flexible pipelines in the vacuum pipeline to reduce the transmission of vibration and to prevent
loading of coupling-joints. We recommend that you use Edwards braided flexible pipelines. The pipelines
should be suitable for 110 °C.
z Adequately support vacuum/exhaust pipelines to prevent the transmission of stress to pipeline
coupling-joints.
z Incorporate a pressure gauge in the inlet pipeline, so that you determine that the iH system operates
correctly.
z You must be able to isolate the iH system inlet from the atmosphere and from your vacuum system if you
have pumped or produced corrosive chemicals.
z The outlet of the exhaust pipe can have a check-valve fitted which prevents the suck-back of exhaust
vapours after the iH system is shutdown. The check-valve also provides additional attenuation of the pulses
in exhaust pressure.
z On very dusty applications, use a low-impedance inlet-filter to minimise damage to the pump.
z The exhaust pipelines should be suitable for 150 °C for HTX systems.
1. Remove the temporary cover or blanking plate from the inlet of the iH system. Retain the nuts, bolts, washers
and blanking plate for future use. Retain the temporary cover for future use on non-contaminated pumps only.
2. Use the O-ring supplied and suitable nuts, bolts and washers (not supplied) to connect the inlet-flange (Figure 5,
item 5) of the iH system to your vacuum system.
3. Use the NW40 trapped O-ring and clamp supplied to connect the exhaust outlet (Figure 3, item 2) on the exhaust
pipe, to your exhaust extraction system. If check valve/elbow are not required for your application refer to the
web.
3.4 Connect the iH1800HTX exhaust TMS
Refer to Edwards instruction manual Y140-00-880 'TMS Temperature Management System' for details. A separate
power supply can be ordered if required, refer to Section 7.3 for details.
3.5 Connect to your factory extraction system (optional)
Refer to Figure 5, item 2.
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