The TU77 has a 3ɸ power plug on it. That probably explains why testing
it would be problematic in a residential settings.
A TU77 can run on household 240v. If I recall it used the 240 for the
big blower motor and the rest of the stuff ran on 110.
1ɸ240V is vastly different than 3ɸ120/208V.
1 phase 240 is just 2 120 volts out of phase. Looking at the 780 it has
3-5 power supplies in it, each one running on 120v. My guess is the main
fan blower is 3 phase 208, and each of the power supplies is run off a
208-common leg (giving 120v).
Big ole monster, but if you can put a 240v motor on the blower you
should be able to rewire it to run on a couple of household 240 circuits.
C
(Ran a KS10, TU77, and 2 RM03's in a spare bedroom once. It has...
upgraded wiring)
