I've had to replace the A/C compressor unit in my EBII Ford Falcon three times in the last 10 years; I've also replaced the evaporator unit twice in the same time. Would you be able to recommend an A/C unit complete that I should not have to replace within five years?
A/C compressors mostly fail because of a lack of lubricant through a loss of refrigerant gas in the system. The gas carries the lubricant that keeps the compressor and other system components alive. I can't recommend an alternative system that you could turn to for your car, instead I would have the system checked for leaks that might be causing a loss of refrigerant, make sure the system is fully gassed, and check it at least annually.