FastCCD chiller
===============

The CRYOMECH CP830 cryo-chiller is located near the FastCCD electronics rack.
Below are intructions to start ip up and shut it down.

.. |FCCD-chiller| image:: FastCCD-Cryomech-CP830-chiller.jpg
   :width: 100%
.. |FCCD-water-line| image:: FastCCD-Cryomech-CP830-chiller-wall-water-line.jpg
   :width: 100%
.. |FCCD-cryohead| image:: FastCCD-Cryomech-CP830-cryohead.jpg


Start up:
~~~~~~~~~

+---+-------------------------+------------------------------------------------+
|1. | |FCCD-chiller|          | make sure that the power is connected and the  |
|   |                         | interlock allows the chiller operation (red LED|
|   |                         | on front panel under interlock connector is on)|
+---+-------------------------+------------------------------------------------+
|2. | |FCCD-cryohead|         | check that the two Helium lines are connected  |
|   |                         | both to the chiller body and to the chiller    |
|   |                         | head (on the beamline)                         |
+---+-------------------------+------------------------------------------------+
|3. | |FCCD-cryohead|         | check that the motor power cord is connected   |
|   |                         | both to the chiller body and to the chiller    |
|   |                         | head                                           |
+---+-------------------------+------------------------------------------------+
|4. | |FCCD-water-line|       | Turn the cooling water outflow red valve (right|
|   |                         | of the green valve marked "FastCCD")           |
|   |                         | anti-clockwise all the way                     |
+---+-------------------------+------------------------------------------------+
|5. | |FCCD-water-line|       | Open the cooling water inflow green valve      |
|   |                         | marked "FastCCD"                               |
+---+-------------------------+------------------------------------------------+
|6. | |FCCD-chiller|          | close the circuit breaker on the chiller front |
|   |                         | panel                                          |
+---+-------------------------+------------------------------------------------+
|7. | |FCCD-chiller|          | press the large green button on the front      |
|   |                         | panel, the button will lighten up              |
+---+-------------------------+------------------------------------------------+
|8. |                         | the chiller should make a regular (~1Hz) loud  |
|   |                         | 'chick' noise                                  |
+---+-------------------------+------------------------------------------------+
|9. |                         | the FastCCD temperature shoud start decreasing |
|   |                         | after ~1/2 hour                                |
+---+-------------------------+------------------------------------------------+

Potential *DANGER* with wall water line:
----------------------------------------

Never close the cooling water outflow red valve while leaving the water cooling
inflow green valve open, as this may lead to a water leak in the chiller.

Shutdown:
~~~~~~~~~

+---+-------------------------+------------------------------------------------+
|1. | |FCCD-chiller|          | press the large green button on the front      |
|   |                         | panel. The chiller should fall silent and the  |
|   |                         | green light go off                             |
+---+-------------------------+------------------------------------------------+
|3. | |FCCD-chiller|          | lower the circuit breaker on the chiller front |
|   |                         | panel                                          |
+---+-------------------------+------------------------------------------------+
|4. | |FCCD-water-line|       | close the cooling water inflow green water     |
|   |                         | valve marked "FastCCD" on the wall             |
+---+-------------------------+------------------------------------------------+

Based on `elog_1359`_.

.. _elog_1359: https://in.xfel.eu/elog/SCS+Beamline/1359