This design enables duct fans to operate at higher static pressures than propeller fans.
Kitchen exhaust fan specifications. To find the fan needed for your size kitchen multiply the number of cubic feet in the room by the number of air exchanges 15 then divide by the number of minutes in an hour 60. Have odorless moisture free rooms kitchen with domestic exhaust fans from havells india. 2 048 cubic foot room x 15 air exchanges 30 720 cubic feet moved per hour. Metal duct venting a 200 cfm fan.
Mechanical exhaust systems specifications reference. This is roughly equivalent to 30 feet of smooth 7 inch round or 3 1 4x10 in. If the fan is mounted. On some fans the cover at the base of the fan needs to be unscrewed but your model may also be spring loaded covered by baffles that need to be slid off or have a latch holding it in place.
30 720 cubic feet 60 minutes 512 cfm range hood fan or higher. Duct fan tubeaxial an air moving device in which the air flow is parallel or axial to the shaft on which the propeller is mounted. Like bathroom fans the airflow from kitchen exhaust fans is generally rated at a static pressure of 0 1 in. Select from a range of exhaust fans in variants such as metal plastic fans premium fans etc.
The commercial kitchen fans include. Australian standard as 1668 2 2002. Ring plate series vogue series minitube plastic series mixvent series silent series minivent series profile fan series tile fan series ezifit thru roof. The fan casing should be made of sturdy galvanised metal with mounting flanges.
Kitchen exhaust hoods contribute greatly to that energy use. Ansi ashrae ies standard 90 1 2010 sets energy efficiency requirements for kitchen exhaust hoods. Fan selection selecting the right exhaust fan will save the kitchen operator money and unnecessary noise in the kitchen. The propeller is housed in a cylindrical tube or duct.
5 6 kitchen exhaust hood airflow alternative procedure note. Energy is used both to operate fans and to heat and cool makeup air that is then exhausted. Once you ve removed the cover press the grease filter in. Commercial kitchen fans listed below are designed for a general commercial kitchen fan applications and are suitable for the majority of specific requirements for commercial kitchen applications.
See ductwork page 262. To clean a kitchen exhaust fan first you ll need to remove the cover over the grease filter. They are very quiet and very powerful. Commonly used in spray booth and other ducted exhaust systems.
Exhaust fan type capacity mounting and situation within the system and.