RH = Relative humidity; the amount of water vapor while in the air compared to the amount of water vapor the air could hold at saturation. Handbook dampers are adjusted by hand and are typically Employed in older HVAC units. They can be less prevalent these days mainly because of https://air-control-dampers-for-h56678.boyblogguide.com/35601237/how-air-control-dampers-for-hot-climates-can-save-you-time-stress-and-money