TABLE OF CONTENTS Due to growing interest in UFAD systems in the U.S., several new products have been introduced in recent years and this trend is expected to continue. In this section we briefly describe some of the products currently available, including both UFAD and TAC diffusers, under-floor fan terminals, and raised floor systems. Not all products are included as this is intended to provide an overview of the range and types of equipment obtainable. Product listings are provided for information only and do not constitute a recommendation or endorsement. Another recent review of UFAD and TAC equipment is provided by Loftness et al. [2002]. It is recommended that you contact the equipment manufacturers directly to obtain the most up-to-date product information.
Figure 5.1 is a schematic diagram showing five possible locations and types of supply diffusers that can be located within atypical workstation. All diffusers that are positioned near an occupant's work location should be controllable to some extent by the occupant. The most common occupant controls are velocity (volume) and/or supply air direction. Floor diffusers are installed as part of a standard UFAD system. As shown in Figure 5.1, diffuser #1 is a round swirl floor diffuser and #2 is a rectangular j et floor diffuser. Other floor diffusers are available as discussed further below. The most effective TAC diffusers are local fan-driven, jet-type diffusers that are located on the furniture in close proximity to the occupant. This configuration...
