Re: Air Conditioner updating
Reply #5 –
FWIW the older AC units had piston type compressors that make more noise and vibration than the newer rotary type compressors. So most new AC's will make less noise; also the piston compressors make more noise with age and use. The other source of noise is the fan, and that depends a lot on the design and materials in the unit. Noise is also reduced by duct work on both the return air and outlets, but with many roof mounted units that isn't possible. If your coach has a drop ceiling for air distribution, it will be quieter, even though the return air grill is usually just below the unit.