Air Distribution Centre for BuildingsThe air distribution centre provides the means by which conditioned air, either heated or cooled, is transferred from the point where it is conditioned to the space to be conditioned or the occupied spaces of the building. The system is comprised of fans, coils, filters, dampers, ducts and a transfer medium, air. The ducts provide a path in which the air can be delivered to the conditioned space. The air can provide either cooling or heating. Basically duct systems are either high, medium or low pressure, high or low velocity and either single or dual duct and either constant air volume or variable air volume. A single or dual duct constant volume air system provides a constant flow of air at varying temperatures.A single or dual duct variable volume air system provides a varying flow of air at a constant temperature. High Pressure Ductwork High pressure means the air in the ducts is exerting a pressure between 6" and 10" water gauge and requires a Class 111 fan. The seams of the duct are usually welded to eliminate leakage normally to less than 1 percent. Medium Pressure Ductwork Medium pressure means the air in the ducts is exerting a pressure of between 2" and 6" water gauge and is used with a Class 11 fan. Low Pressure Ductwork Low pressure means the air in the duct is exerting a pressure of less than 2" water gauge and is normally used with a Class 1 fan. It is also used on systems where the velocity of the air is 2000 fpm or less. High Velocity Ductwork. High velocity means the speed of air moving through the ducts is more than 2000 fpm. Low Velocity Ductwork for air distribution centre. Low velocity means the speed of the air moving through the ducts is 2000 fpm or less. Return from Air Distribution Centre to homepage |
