VAV Boxes, Duct Silencers, Fan-coil Units
Be sure to refer to construction drawings and specifications, seismic restraint submittals, and manufacturer’s instructions.
Step 1: Identify equipment
Figure 61: VAV damper. 
Figure 62: VAV box with fan (series or parallel). 
Figure 63: Dual duct box. 
Figure 64: Vertical fan-coil unit. 
Figure 65: Horizontal fan coil unit. 
Figure 66: Duct silencer.
Step 2: Select the type of attachment
Using the following table, select how the equipment is to be installed, select the attachment type that best matches the installation you have selected, then turn to the page under the attachment type
