Did you suppose that some larger buildings have more than 2 central cooling systems to cool their building? Our building is relatively small, however the people I was with and I need 7 air conditioning units to help keep our building freezing in the summer.
We do everything that the people I was with and I can to prevent our cooling systems from failing while I was in the year, including enrolling in biweekly inspections.
Every season, an Heating plus A/C worker visits our location plus goes over every Heating plus A/C unit to make sure that things are in working order. If something needs to be updated on our cooling systems, they hand us a quote telling how much they will charge us to maintenance it. Apparently, this summer, a few of our units had some issues. All of them had capacitors that needed to be changed, plus a few had extra problems. Two of the cooling systems needed to have a blower motor changed, plus a single of those more than 2 cooling systems had a blockage in a single of the vents. One of the cooling systems had a few more serious problems that needed immediate attention. In the end, this would mean that for a few mornings, a single or more of our cooling systems would be out of order. The temperatures would be higher in the office, although I guess it is a sacrifice that the people I was with and I have to make. Air conditioners are easier to maintain than to repair, plus the people I was with and I knew that the people I was with and I would be happy to have correctly functioning cooling systems. Though the price was high, it would be cheaper to do this than to update the cooling systems. We called the Heating plus A/C supplier plus busy the upcoming repairs!