Acoustic plenum may be provided for better noise control.įor installation of diffuser on plaster ceiling great care must be considered during design phase of the project to ensure proper installation can be achieved during construction. The blade of the diffuser is used for minor airflow balancing. Linear slot diffuser of similar number of slot may be used for matching return diffuser. Longer acoustic plenum is available in length of 18 mm and may be provided with one or two inlet spigots depending on the air handling capacity of the linear slot diffuser. Acoustic plenum is constructed of galvanised steel of standard length 1200 nominal dimension with one inlet spigot of size 150, 200 or 250 mm diameter.

The acoustic plenum may be supplied with inlet butterfly damper (optional) so that fine airflow balancing with the damper may not increase the generated noise. Supply air diffuser is supplied with acoustic plenum that is internally lined with fire retardant acoustic foam for better indoor air and sound quality. In addition to straight length diffuser, customised curve shape diffuser with or without acoustic plenum may be available as shown. Alignment pins and/or bracket may be supplied to ensure straight joints. For length, longer than 2400 mm or continuous run linear slot diffuser, they may be formed by joining together 1800mm or 2400 mm diffusers with balance dimensions at each end. However longer length up to a maximum of 2400 mm can be custom-made when required.

Standard length diffuser as such are available ex-stock in powder coated standard baked enamel RAL 9010. For installation on inverted ceiling Tee bar, the diffuser will be constructed of standard 1194 mm length to suit 1200 X 600 mm accessible ceiling system. Diffusers are available in 1 to 4 slots and in standard length of 1200 mm with end caps for plaster ceiling installation. Our linear slot can be easily used with integrated ceiling system with appropriate installation accessory and special frame profile to match the ceiling design. Connols-Air Linear Slot Diffuser is mainly rated for supply but can be used as return unit or as combination unit as in the case with air-light fixtures.

48 single slot linear slot diffuser