Venting and pumping the FastCCD
===============================

Venting:
~~~~~~~~

.. |TIMmanualroughingvalve| image:: ../TIM/TIM_manual_roughing_valve.jpg
   :width: 100%
.. |FCCDmanualroughingvalve| image:: FCCD_manual_roughing_valve.jpg
   :width: 100%
.. |FCCDTP12_controllers| image:: FCCD_TP1_TP2_controllers.jpg
   :width: 100%
.. |N2_dewar| image:: ../FFT/N2_dewar.jpg
   :width: 100%
.. |N2_flow| image:: ../FFT/Venting_overpressure_flowvalve.jpg
   :width: 100%
.. |FCCD_PUMPDOWN| image:: FCCD_PUMPDOWN.png
   :width: 100%
.. |FCCD_manualventingvalve| image:: FCCD_manual_venting_valve.jpg
   :width: 100%

+---+-------------------------+------------------------------------------------+
|1. | |TIMmanualroughingvalve||Since TIM and FastCCD share the same roughing,  |
|   |                         |first close the TIM manual roughing valve before|
|   |                         |venting                                         |
+---+-------------------------+------------------------------------------------+
|2. ||FCCDmanualroughingvalve||Close the FastCCD manual roughing valve on the  |
|   |                         |back of the FastCCD.                            |
+---+-------------------------+------------------------------------------------+
|3. ||FCCDTP12_controllers|   |Switch off the TP1 and TP2 in the rack room,    |
|   |                         |rack number +E21.UH2.06                         |
+---+-------------------------+------------------------------------------------+
|4. | |N2_dewar|              |Open the N2 dewar                               |
+---+-------------------------+------------------------------------------------+
|5. | |N2_flow|               |Make sure the overpressure valve makes sound by |
|   |                         |adjusting the flow                              |
+---+-------------------------+------------------------------------------------+
|6. | |FCCD_PUMPDOWN|         |Watch the pressure in the FCCD2M_PUMPDOWN scene |
|   |                         |in loop7 and listen to TP1 and TP2 while slowly |
|   |                         |opening the venting valve                       |
+---+-------------------------+------------------------------------------------+
|7. ||FCCD_manualventingvalve||When the pressure is in the few mbar, the       |
|   |                         |venting valve can be openend fully              |
+---+-------------------------+------------------------------------------------+

Pumping down:
~~~~~~~~~~~~~

+---+-------------------------+------------------------------------------------+
|1. | |TIMmanualroughingvalve||Since TIM and FastCCD share the same roughing,  |
|   |                         |first close the TIM manual roughing valve before|
|   |                         |pumping down                                    |
+---+-------------------------+------------------------------------------------+
|2. ||FCCDmanualroughingvalve||Open slowly the FastCCD manual valve on the     |
|   |                         |roughing line                                   |
+---+-------------------------+------------------------------------------------+
|3. | |FCCDTP12_controllers|  |Once the pressure is less than 2 mbar, start up |
|   |                         |TP1 and TP2 in the rack room, rack number       |
|   |                         |+E21.UH2.06                                     |
+---+-------------------------+------------------------------------------------+
|4. ||TIMmanualroughingvalve| |Once the pressure is good enough <0.1mbar in the|
|   |                         |roughing line, open the TIM manual valve again  |
+---+-------------------------+------------------------------------------------+