That out of the way, possible causes for popping fuses/breakers:
a. Line voltage is too low, what is your line voltage? Does is vary a lot during the day?
b. What is the rating of the breaker/fuse that trips? The A1166-Pro pulls 3,420w and at 208v line that means it is drawing 16.4A. The PDU circuit must be rated for at least 18A to safely carry that load 24x7.
My guess is that the miner is fine and the OP is simply overloading the PDU circuit.
IF that is the case - lose the PDU and directly wire the miner to a 20A circuit. Without knowing how the PDU circuits are wired it is highly inadvisable to try combining power from 2 outlets to feed the miner and even if one
does know how they are wired it is still very bad practice to combine power like that.
Ja Bitmain
appears to do that with their miners (2x power inlets) BUT their PSU's are internally using 2x smaller PSU's each rated for 1/2 of the total load and ran in a master/slave parallel mode to form 1 large PSU. They are not directly tying the 2 power inlets together to feed 1 large PSU. With the S17/19's each power inlet feeds just 1 of the (smaller) PSU's which means technically they
can be powered by separately protected circuits (but that is still a bad idea).
To the fair, at least the OP asked about the idea before blindly actually trying to do it so kudos to them for that
