The BTU rating for your Coleman Mach AC 48254C969 is 15,000 so you wouldn't want a lower rated model like the Furrion Chill HE Replacement RV Air Conditioner # FR76PR. You would instead need a 15,000btu model that also comes with a 9-pin adapter to connect to your Coleman system's controller like the Furrion Chill HE Replacement RV Air Conditioner for Coleman Setup - 15,000 Btu - Black # FR32PV or # FR42PV for white. view full answer...