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Technical Information
Shutdown Procedure
1 Releasing or admitting air to a pump with a hot boiler, especially when it is
WARNING
under vacuum, permits a strong oxidizer to contact the hot pump fluid and
greatly increases the risk of an explosion.
2 Boiler temperatures reach 530° F (275 °C) which can cause serious burns.
Always check that surfaces have cooled to near room temperature before
touching them.
To shut down the pump:
1
Close the inlet valve on the system, if equipped.
2
Turn off the power to the heaters.
3
For pumps equipped with the optional Quick Cool Coil, admit water into the coil.
4
Continue to flow cooling water through the pump (and Quick Cool Coil, if
equipped) for at least the time period listed under "Cooldown Time Without
Quick Cool With Quick Cool" in Table 4.
5
Once the pump is cooled, shut off the mechanical backing pump.
6
Air release the pump.
7
Continue cooling water flow until the pump is at room temperature, then shut
off the water supply.
58
High Throughput Diffusion Pumps User Manual
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