Late '80s Central vs. Roof Air
I am trying to understand how "Central" air conditioning is implemented in the late '80s coaches. Where is the ducting? Where are the air units located? I am making the assumption that this might be a quieter system than the
roof mounted units. Are there any drawbacks to the central air system? For instance, can an older roof unit be replaced with a commonly available off the shelf unit today? What is the availability of replacement parts or units used in the central air system, by comparison?
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