© Edwards Limited 2009. All rights reserved.
Page 49
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INSTALLATION
A533-23-880 Issue C
1. Use 3/8 inch BSP male pipe fittings (which you must supply) to fit the female quick-release connector to the
cooling-water supply hose and to fit the male quick-release connector to the cooling-water return hose.
2. Refer to Figure 4. Remove the dust-caps from the cooling-water inlet and outlet (2, 3).
3. Connect your water return hose to the cooling-water outlet (2) and connect your water supply hose to the
cooling-water inlet (3).
4. Turn on the cooling-water supply.
5. Inspect the water hoses, pipelines and connections and check that there are no leaks.
6. Turn off the water supply while you complete the remainder of the installation procedures.
3.18
Adjust the interstage purge flow rates if necessary
The dilution purge (3/4) flow rate can be adjusted, contact your supplier or Edwards for advice.
3.19
Commission the iF system
3.19.1
Switch on an iF1800 system
Note:
Operation of the iF system with high inlet pressure may result in shaft-seal pressure warnings (refer to
Table 20): the operation of the iF system will not be affected, and you can ignore these warnings.
1. Switch on the external electrical supply and check that the power OK LED (Figure 6, item 7) goes on. If the LED
does not go on, refer to Section 6 to determine the cause of the fault.
2. Switch on the cooling-water and nitrogen supplies.
3. Ensure that the exhaust-extraction system is not blocked (for example, that valves in the exhaust-extraction
system are open).
4. Ensure that all openings to atmospheric pressure in the foreline vacuum system are closed, then switch on the iF
system.
5. If the iF system starts and continues to operate, continue at Step 6. If a warning or alarm condition is indicated
(for example, a warning or alarm message is shown on the Pump Display Terminal):
Shut down the iF system: refer to Section 5.9.
Refer to Section 6 to determine the cause of the fault and to rectify the fault.
6. Look at the pressure gauge in your inlet pipeline:
If the pressure is increasing, the FDP pump-motor terminal-box and/or the HMB pump-motor terminal-box is
incorrectly wired: immediately shut down the iF system, correct the electrical wiring (refer to Section
3.15.1), then repeat this procedure from Step 3 again.
WARNING
Do not operate the iF system with the exhaust pipeline blocked. If the exhaust pipeline is blocked,
the iF system can generate exhaust pipeline pressures up to 7 bar (7 x 10
5
Pa).
WARNING
Do not operate the iF system with any enclosure panels removed and do not touch any parts of the
pump(s) when the iF system is on. Surfaces of the pump(s) are very hot and can cause injury to
people.
