Grundfus pump and PSX 240 transformer [RE-wrenches]

[Bob Ellison]

I just got asked to install a transformer to run a 220 volt SQ
constant pressure pump.
It has the electronic pressure switch so how can I install the
transformer with that switch?
We all do it with regular pressure switches all the time, normally on
the well side of the switch, but I have never done it with this
switch. Any problems in the past?
He will keep his old inverter, an original FX 2000  and wants to use
it for emergencies. but running all the loads in the house through the
transformer makes no
sense to me, much less the load and inefficiencies of the transformer
on all the time.

Thanks,
Bob