Floor Diffusers
16Pages

Floor Diffusers Trox (Malaysia) Sdn.Bhd Telephone +60-6-678 81 88 Senawang Land Industrial Park i/i/i/i/i/i/.troxmal.com.my 70400 SerembanNegeri Sembilan Darul Khusus e-mail: trox@troxmal.com.my

Contents · Description Description ______________________________________________ 2 Construction · Dimensions ____________________________ 3 Dimensions GA · GAM ________________________________ 4 Installation Examples ________________________________ 5 Installation · Fixing Details ____________________________ 6 Materials ____________________________________________ 7 Installation Instructions ________________________________ 8 Load Capacity ______________________________________ 9 Nomenclature · Technical Data ______________________10 Acoustic Data ____________________________________11...

Construction · Dimensions There are two possible configurations for orders with a dirt trap - Construction The floor diffuser core has a large number of radial ribs to produce a swirling discharge. This allows adjustment of discharge direction in critical operating conditions. The diffuser is available in aluminium or plastic. An adjustable control element is used to change the direction of discharge. There are two types of control element one adjusts discharge between vertical and horizontal (V,H) the other one provides a fixed vertical discharge (VF). The trim ring should preferably be...

Dimensions GA · GAM The multiple diffuser plenum box is suitable for installation of 4 floor diffusers size 150 in the layout shown below. As it is not normally necessary to balance individual diffusers a damper is provided in the side entry spigot of the plenum box. Type GA Multiple diffuser plenum box for 4 floor diffusers ø138 200 116 Type GAM As GA, but with damper in the side entry spigot 500 300 25 300 4 48

Installation Examples Example 1 Example 3 Positive pressure plenum floors are preferred for large areas. Here, plenum boxes are not required due to the uniform pressure distribution. If the objective is even distribution of air within the zone, it is not necessary to balance the diffusers individually. For a combination of zone and individual room control, the floor diffusers for the room should have a ducted supply to the plenum boxes. The air is distributed over the zone via pressurised floor void. Individual rooms can be controlled, e.g. by room thermostats. A number of plenum boxes are...

Installation · Fixing Details Installation For installation in false floors with hard surface finishes, no trim rings are required. The installation opening required is shown below. A clamping ring is supplied on orders with a trim ring. The clamping ring screws onto the thread of the trim ring by means of thread sections on the clamping ring locate on the thread pitch of the trim ring. On installations without a trim ring the spacing ring supplied must be fitted for technical reasons and for adjustment of the height. For installation in false floors with carpet covering, trim rings should...

Materials Materials Construction FBA The adjustable swirl element, the clamping ring and dirt trap are black polyamide (PA-6V) flame retardant to UL standard 94. Plenum box and volume control are galvanised sheet steel. The surface of the plenum box is phosphate treated and painted black (RAL 9005). Construction FBK The floor diffuser and the trim ring are polyamide PA6 or on request, polyamide PA6-V0 in accordance with UL Standard ’94 (flame resistant) and are available in the following colours: Dusty grey similar to RAL 7003; or black similar to RAL 9005. Other colours can be supplied on...

Installation Instructions Installation in floors without floor tiles For installation in floors without floor tiles the clamping ring ቢ is first inserted into the duct or floor void and the trim ring ባ then positioned into the opening. When fitting the clamping ring the ident sections ቤ on the clamping ring and trim ring must first be positioned above each other. Using light upwards pressure turn the clamping ring in easy stages each time starting at the ident section on the trim ring. In the case of deep ducts or floor voids the trim ring can be slipped over one arm and the clamping ring...

Load Capacity Breaking load in kN Position of cube Position of cube 1 2 Size 150 without trim ring Size 200 without trim ring 27 25 15 8 Size 150 with trim ring Size 200 with trim ring 28 22 14 9 Size 150 without trim ring Size 200 without trim ring 15 6 7 3 Size 150 with trim ring Size 200 with trim ring 12 6 6 2 Load capacity with trim ring Load capacity without trim ring Direction of load Direction of load Cube Cube 2 2 1 1 Z Z Plastic Aluminium Construction Trim ring Grille core Grille core 24 24 Size Z 150 52 200 77 9

Nomenclature · Technical Data Note: For construction without the control element the aerodynamic data for the diffuser with vertical discharge only are applicable. Nomenclature ‡ ‡ Air discharge: Vertical in l/s: Volume flow per diffuser in m3/h: Volume flow per diffuser L in m: Distance from centre of diffuser y in m: Height of measuring point 10 -50 mm above floor level h1 in m: Height above diffuser hmax in m: Max. penetration height of supply air jetdepending on ͬ t Z or ‡ veff v in m/s: Effective jet velocity vH1 in m/s: Max. time average air velocity at height h1 above floor level in...

Acoustic Data Air discharge: Vertical Correction to Diagram 1 Volume control using dirt trap Correction to Diagram 3 Volume control using dirt trap open ͬ pt 100% 40% 20% x 1.0 x 1.4 x 2.3 L WA / LW NC without AK with AK – – + 4 + 2 + 8 + 7 Correction to Diagram 2 Volume control using dirt trap open ͬ pt 100% 40% 20% x 1.0 x 1.3 x 2.0 L WA / LW NC without AK with AK + 0 + 0 + 3 + 3 + 7 + 7 Correction to Diagram 4 Volume control using dirt trap open ͬ pt 100% 40% 20% x 1.0 x 1.3 x 2.0 L WA / LW NC without AK with AK + 0 + 0 + 3 + 0 + 7 + 6 open ͬ pt 100% 40% 20% x 1.0 x 1.7 x 3.5 L WA / LW...