Correction: The resistor placed across the entire cap bank would have to be
aprox. 7K ohms, not 56K ohms. Power dissipation of the resistor would be
(240 squared) / 7K = 8.3 watts. It would have to be a 10 Watt resistor.

It would probably be much easier to find a 10k 10 watt resister that
is close enough for this job.