No one, expert or amateur, will come and remove this old ac from a long-gone previous occupant. It’s easily accessible and I will pay a premium but no one in the Nice area will come because they’re scared of the Freon exploding.
I can’t help with your problem but think there may be some confusion, perhaps on my part…
Freon is not a flammable material it us unlikely to explode. The problem may be that as an old system it is using R22 Freon, or a similar environmentally harmful product. It should not be released into the atmosphere. The gas is usually under a lot of pressure, which could be their concern. If it should rupture a pipe the Freon will be released.
Perhaps you could approach this as 2 separate tasks. The first one being to drain off the old refrigerant, then the second is to remove an unpressurised non-functioning AC unit. Any AC company should be able to empty the unit, even cut the pipes so that is obviously no longer under pressure.
I have noticed that there is a tendency to specialise,e.g. Installing an AC unit the AC specialist will want an existing and suitable electrical supply point but will expect an electrician to connect it.
Thank you all for your replies. I apologize for not having responded promptly. I have only just realized that I had received three very kind and generous responses.
The AC unit turned out to be empty and was removed by a mason and picked up by the township for the correct disposal.