How Does Reheat Work

Reheat is the addition of heat to previously cooled air. Reheat is used sometimes for humidity control, and sometimes for occupant comfort. … Then the reheat coil activates and the incoming cool air is reheated to maintain the setpoint.

What is the purpose of reheat coils?

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.

What is a terminal reheat system?

terminal reheat system. A type of air handling system commonly integrated with CAV and VAV systems that maintains comfort in a building by cooling the air at the air handling unit and then reheating the air near its point of use.