I want to install it after the pressure differential valve so the warning lamp will still operate correctly. /QUOTE]
The lamp always works correctly, it's indicating an imbalance..
May I ask what you are trying to accomplish by not plumbing it between the M/C and the PDSwitch.. You do know the switch is self centering (not like some other brands),, so the lite goes out when the button is released..??
The imbalance lite can be helpful in competitive situations, letting you know that the "tap" you gave to set up for a corner "worked".. and if it wasn't enuff,, to give it another "tap"...
hoping to help
