Reheat for dehumidification is simply cooling the air with the air conditioner to pull out the moisture. But instead of throwing the heat outside, the reheat coil simply puts that heat back Into the original air stream. It forces an air conditioner to act like a poorly designed dehumidifier.May 7, 2020
How does reheat control humidity?
To prevent the temperature of the dehumidified air from over-cooling the space, the reheat coil heats the air before it leaves the unit. ... As the compressor turns on and off, the humidity will also fluctuate; while the compressor is on, the air is dehumidified and the space humid- ity drops.
What is the purpose of a reheat coil when dehumidifying?
Reheat for dehumidification is simply cooling the air with the air conditioner to pull out the moisture. But instead of throwing the heat outside, the reheat coil simply puts that heat back Into the original air stream. It forces an air conditioner to act like a poorly designed dehumidifier.May 7, 2020
Why is it necessary to put reheat coils in VAV boxes?
Reheat is used sometimes for humidity control, and sometimes for occupant comfort. The latter use happens when zone cooling loads are low and too much cold air is supplied to a space. In a VAV system, a damper modulates the amount of cool air supplied to the zone.Sep 14, 2009