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operation
A533-23-880 Issue C
5.5
Start-up
Notes:
When you use the Pump Display Terminal to start up the iF system, we recommend that you do not
disconnect the Terminal from the iF system; if you do, you will not be able to use the Terminal to
instantly shut down the iF system: refer to Section 5.4.
Operation of the iF system with high inlet pressure may result in shaft-seal pressure warnings (refer to
Table 18): the operation of the iF system will not be affected, and you can ignore these warnings.
Use the following procedure to start up the iF system:
1. Switch on the cooling-water supply, the nitrogen supply and the external electrical supply (if not already on).
2. Ensure that the exhaust-extraction system is not blocked and that valves in the exhaust-extraction system are
open.
3. Ensure that the Pump Display Terminal has control of the iF system: refer to Section 5.4.
4. Refer to Figure 7. Look at the display (2) on the Pump Display Terminal:
If there are any warnings or alarms, take the necessary corrective action (refer to Section 6); do not start the
iF system.
If there are no alarms or warnings displayed, use the Switch On menu to switch on the iF system.
When you switch on, the following actions will occur (with a small time delay between each action):
The LED on the On button on the Pump Display Terminal will start to flash.
The FDP pump will be switched on.
The LED on the On button on the Pump Display Terminal will stay permanently on.
The solenoid-valve(s) in the Gas Module will open to switch on the nitrogen supplies to the FDP pump.
After the booster start delay, the HMB pump will be switched on.
5.6
Check the nitrogen pressure and adjust if necessary
Note:
You must only check and adjust the nitrogen pressure after the iF system has been operating for at least
four hours, so that the FDP pump is at its correct operating temperature.
You must check and adjust the nitrogen pressure when you first use the iF system. Thereafter, we recommend that
you regularly check and adjust the nitrogen pressure, to ensure optimum shaft-seals performance and to maximise
the life of the shaft-seals.
When you need to adjust the nitrogen pressure:
Turn the pressure regulator clockwise to increase the pressure.
Turn the pressure regulator anticlockwise to decrease the pressure.
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.
WARNING
Ensure that it is safe to start the iF system. If you do not (and for example, maintenance is being
performed downstream of the iF system), you could cause injury to people.
