I have an old Chrysler brand furnace model # CU05-15 serial # 46452444. I am trying to find out if I can purchase an outside unit that will be compatible to this furnace. I do not see any specs for ac so my first question may be is this a dual purpose units. Thanks

Can you give us any more information about the furnace? Some helpful info would be things like BTU input, is the fan belt driven or direct drive, where is the furnace located (basement, crawl space, attic, living floor, etc.).