Good afternoon! Recently came across an old leisure life "model 50" unit. It has name plates for 110 and 220 service. It also has a hydroquip "14-L010CL" The previous owner says it ran on 110. and i have a witness that it worked recently. It appears there are 2 black leads coming from the controller as well as a white lead. the white lead looks like it was jumped from a terminal block. even more confusing the jumped location appears to be from what is the white lead to the 110 outlet that is on the controller. Does anyone know the proper wiring for this older unit? we would prefer to operate it on the 110. thanks so much in advance for all your help.