I’ve got a 96 Coleman Taos, and I’m having a terrible time identifying which AC unit my camper has. It resembles a Mach style AC, but the model number on the information decal is not legible. The inside cover says Coleman TSR, but I haven’t found any parts or information on the TSR other than AC covers that show to fit Mach and TSR series. Do I have a Mach 1 or 3 or something else? Thanks for any information.