Centrifugal HVAC Fans - 23 34 16
Used in supply, exhaust and transfer air distribution systems, Centrifugal Fans are motor driven air moving devices in which the air flow is perpendicular to the shaft on which the wheel is mounted. There are four classes of centrifugal fans. The class is determined by the wheel blade position with respect to the direction or rotation.
Forward Curve - Tips of blades are inclined in the direction of rotation. These fans are used in residential heating, air conditioning and light duty exhaust systems....
Tips on Estimating Centrifugal HVAC Fan Costs from RSMeans
Review all construction documentation before proceeding with the estimate for HVAC. It is not unusual to find items on the plans, but not in the specifications; or they may be in the specifications but not on the drawings. Also check any and all communications; the owner may have requested a change or expressed a concern or a specific need, and not have had it included in your drawings or specifications. |
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