Suggested Specification Access Floor Diffusers Models: TAF-G Grommet Access floor diffusers shall be TITUS Model TAF-R(-FR) diffuser. The TAF-R(-FR) diffuser shall be constructed of a high impact polymeric material. The diffuser shall have a removable curved slot helical throw diffuser core. The diffuser core design shall produce a vertical, high induction helical air pattern. A high induction swirl air pattern is acceptable. The trim ring shall have a 1-inch flange for use with carpeting. The dust receptacle shall have an integral flow regulator and shall extend 5¾ inches below top of access floor panel. The diffuser shall have an external open/close indicator and internal open/close stop to allow visual determination of damper position. The flow regulator shall be manually operated without removing the diffuser core. The diffuser shall have a positive compression quick mount ring for installation into access floor panel. The access floor diffuser shall be assembled such that the access floor panel is not removed from the floor system for installation of the diffuser. The diffuser core and trim ring finish shall be TITUS gray. The dust receptacle, flow regulator and quick mount ring finish shall be TITUS black. Optional complementary grommet, model TAF-G, shall be available for through the floor access to power, phone and data cables. The TAF-G grommet shall be constructed of the same material as model TAF-R. The TAF-G trim ring and mount ring shall be interchangeable with the TAF-R trim ring and mount ring. The manufacturer shall provide published performance data for the access floor diffuser, tested in accordance with ANSI/ASHRAE Standard 70-1991 at both isothermal and various DT conditions.