If on, turn off NIM crate to disable interlock (otherwise chiller won't start)
Turn on SVT power supply crate (turn key to "local on"), make sure red "interlock" light comes on (i.e. tripped)
Set flow manifold valves
Start chiller (power button on front panel)
Turn on NIM crate, make sure Arduino's green "ON" light and flow switch's red "flow above threshold" light turn on, SVT power supply's red interlock light turns off
Do stuff to start power and DAQ

SVT Layout in Lab

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Top half:
physically on away side from chiller
cooling loop on away side from chiller
flange with long cable outside thermal box
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