Went to a site today and found a Liebert condenser with 2 motors: 1 single phase motor which is normally controlled with a JCI P66 series speed controller and a 3 phase motor which is controlled by outside air temp. Over the weekend, the single phase motor died and someone hooked up the 3 phase motor to the P66 controller--and it is still running! I took current reading and it is slightly high <10%.
According to the P66 literature, you cannot use on a 3 phase motor. How is this motor working?