Thursday, March 7, 2013

Draw Air Vents For Reflected Ceiling Plans

Ceiling ducts take planning to meet your environmental needs.


To prepare a reflected ceiling plan for ventilation, you need to first have a floor plan and an idea of the heating and cooling demands of your space. The heating and cooling requirements are determined by the use of the space and local building code requirements. With appropriate research on heating and cooling loads, you can size and plan for ceiling ventilation to make your space energy-efficient.


Instructions


1. Secure the floor plan to a drawing board with masking tape. Overlay sketch paper and secure it with additional masking tape.


2. Determine the heating and cooling demands of the space. Refer to the local building code requirements to determine the temperature rise required. Identify the accepted calculation method.








3. Create a chart listing all spaces and their areas. Use the calculation method identified above to determine the heat loss and the required mechanical ventilation for each space.


4. Select your heating and cooling plant (fan coil or furnace) based on the heating load and the volume of air determined in your chart. Identify the return and supply opening sizes of your heating plant.








5. Locate your heating plant on the plan and size the supply and return lines to match. Locate the supply and return lines so that they provide a smooth path from source to point and back.


6. Determine the quantity of air each duct can supply to meet the building code requirements filled in on your chart with the ductulator. Lay out the path of the supply and return ducts and their sizes on the sketch paper.


7. Indicate balancing dampers on the supply ductwork for all supplied and returned spaces. Identify on the plan the supply and return grill sizes and types.

Tags: heating cooling, supply return, building code, building code requirements, code requirements