Best suggestions for replacing several AC units (rooftop package heat pumps)

[Corey G.]

Hello Everyone, 

New to bigger pockets but not to investing in properties. I own 3 multiplex properties and Over the last few years I've spent a lot of money on AC units that have died. I have working (but old) AC units and the ones I haven't replaced are going to crap out on me soon I'm thinking. I'm looking for a better solution to replace the other units I have that won't cost me a fortune. I've spent between 2700 and 3200 for rooftop package heat pump replacements (which isn't terrible here in Phoenix) but 8 more of those is another 25,000 that I don't want to spend. So my question is what does everyone else do when replacing AC? I'm sure someone has figured out a better solution to this that I'm not aware of. Do you buy used units? Refurbished? Online wholesalers? Any advice is appreciated.