The SP32900VSP TriStar VS pump can be wired, per the label, for 240/230/115V, with corresponding Amp draw of 7.0/7.4/7.2, so very little amp difference between 120 and 240V. I have 12-3 going into the pool shed with each hot on separate breakers and opposing "phases" (not the right term, but...). This wiring was pre-existing. I currently have wired the pump as the only load on one of the 120V legs and I'm using the other leg for pool heater, chlorine generator, and other minor draws within the shed.
What I'm trying to understand is the performance hit of the pump between 240 and 120V? I assume there is some, but I can't find any data from Hayward on this!
This is all new and nothing has been powered up yet. I was considering re-wiring the pump for 240V, but that was under the assumption that it would reduce current draw, still leaving enough for all the other equipment, but this is not the case! If there's an unacceptable performance hit, I will rewire and run another 120V circuit.
What I'm trying to understand is the performance hit of the pump between 240 and 120V? I assume there is some, but I can't find any data from Hayward on this!
This is all new and nothing has been powered up yet. I was considering re-wiring the pump for 240V, but that was under the assumption that it would reduce current draw, still leaving enough for all the other equipment, but this is not the case! If there's an unacceptable performance hit, I will rewire and run another 120V circuit.