Good evening everyone--- Good to hear there is a back up possibility if this fails. Thanks Nick. I also have three ac units on the roof and the front one is as far forward as I could get it without cutting into fibercast roof cap (within 4 feet). I have already installed the roof ac units so I have to finish the plan and see if it will work. I think my front and center units are 15,000. Glad to here Tom's units do a satifacfory job of cooling. Living in Canada, we don't see temps much over 90, that is hot enough. To add anything or find a usable pulley in my engine compartment would be tough. As a point of interest did other know that by trying to resurrect a battery with a 30 amp charge will set off a carbon monoxide detector before setting off gas detector ? I spent half a day yesterday looking for a flue gas leak that I did not have. Burial writes to battery today. Have a good day everyone.
Most carbon monoxide detectors can't tell the difference between CO and Sulfur Dioxide from batteries being charged. A common cause of false CO alarms in homes with battery backup sump pumps that run dry and overcharge.