172-65608MA-03 (RGDS) 5 Oct 2021
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Shutdown Procedures: Pressure Reducing Section
1. Slowly close the pressure reducing valve (approximately 10% per 2 minutes).
2. Verify that the pressure reducing valve is fully closed, and then close the manual
valve on the primary side of the pressure reducing valve.
3. Turn off the power for the control box.
*
* Unnecessary if sharing the same control box as the pressure reducing section.
Shutdown Procedures: Desuperheating Section
1. Verify that the pressure reducing section has stopped. If a pump is installed, stop
the pump.
2. Close the temperature control valve fully.
3. Verify that the temperature control valve is fully closed, and then close the
manual valve on the primary side of the temperature reducing valve.
4. Stop the electricity supply for the control box and close the valves for the air
supply to the control valve instruments.
