Agilent TCD Detector

We have recently purchased a TCD detector for our Agilent 6890 GC.  The TCD detector is jumpered to an FID detector.  When just the filment on the TCD is turned off, does it matter if the reference gas is on or off?  I believe the reference gas turns off automatically when the filament is off.  Do we need to do anything special with the filament and gases (the gases associated with the TCD) when the TCD is not in use and sitting idle?