SERIES GD. Square and Circular Fixed Swirl Diffusers

Transcription

1 SERIES G Square and ircular Fixed Swirl iffusers PULITION IFFUSERS 18 MY 2018 Features - istinctive architecturally appealing designs - Two swirl pattern options - order styles compatible with modern ceiling designs - ircular or square face formats - ost effective design & construction

2 SERIES G Square and ircular Fixed Swirl iffusers Introduction Series G provides a new extra dimension on the popular and effective swirl diffuser theme. omplimenting Gilberts existing swirl diffuser range the new G series has been introduced to provide a wider range of architectural and design style swirl options which combine appealing aesthetics with cost effective design. Primarily the diffuser offers the choice of either a square or circular face plate design but there is then a choice of two different radial blade pattern configurations. Each configuration provides a high performance swirl air distribution effect which allows them to deliver high volumes of air into the conditioned space taking advantage of its rapid entrainment and mixing capabilities. Series Options Face Styles Square Face Series GS- Series GS- Series GS- Series GS- ircular Face Series G- - Swirl diffuser with 32mm flange border suitable for plaster ceiling applications with a choice of two different swirl face style - Swirl diffuser with clip in border edge detail with a choice of two different swirl face style - Swirl diffuser with borderless frame suitable for lay- in ceiling grid application with a choice of two different swirl face style - Swirl diffuser with step flange border frame suitable for tegular ceiling grids with a choice of two different swirl face style - ircular swirl diffuser with flange border suitable for plaster ceiling or exposed ductwork with a choice of two different swirl face style PTTERN 1 PTTERN 2 Selection Procedure Performance ata ll units are fabricated from mild steel and are available with a matching range of top and side entry plenum boxes. Volume control can be achieved using Quadrant flap type or Iris ampers on the plenum inlet spigots. There are four Swirl diffuser List Sizes including,, 500 and 600mm diameters. ll four swirl sizes are available in both square and circular faceplate configurations with The following selection procedure is to be used within areas of ceiling heights from 2.5 to 4 m and is based on an evenly distributed layout of diffusers. 1. Try if possible to construct in plan an imaginary square ceiling grid. This will enable the esigner to position each diffuser at each square centre so that the distribution is even in all directions. 2. The total volume of air should then be divided by the number of outlets and the volume per diffuser established. 3. The performance chart should then be used to select the size and type of diffuser based upon the volume and throw requirements. For high ceiling applications an over-blow situation can be acceptable. The performance tables that are illustrated in the brochure give tabulated performance for each listed size of diffuser, together with their design. The figures given relate to cooling, ventilation and heating applications and are given for a horizontal distribution. The performance data for all Gilberts products is derived using a Gilberts plenum design and specification. Performance cannot be guaranteed where alternative plenum designs are used square designs also including additional border styles to suit popular ceiling grid designs. Standard fixing uses a central screw into a secondary bracket within the plenum box. Special fixing for installations without plenum are also available. Standard diffuser finish is Polyester Powder White. Other colours available on request. 4. heck pressure loss, N levels from design chart to conform acceptability. EXMPLE: Take an 8 x 12 m open plan office area with a total required volume to be supplied of 1.2 m 3 /s. ivide this area up into 6 equal spaced segments, each measuring 4 x 4 m, and position a diffuser in the centre of these imaginary grids. If we divide the total volume by 6, then this will equate to 200 l/s per diffuser. From the chart for a size 600 in a horizontal distribution, we can select a unit handling 200 l/s which gives a noise level of N30, and a static pressure drop of 12 Pa. Throw in isothermal conditions of between 1.4 and 2 m, which is very similar whether in a heating or cooling mode. This should be an acceptable selection for this area. References Used Pressure: ll pressures are given in Pa (Newton per m 2 ). Throw: The horizontal distances are given for both 0.5 and 0.25 m/s terminal velocities and are based upon ceiling effect for horizontal distribution. Sound: The N values are peak values on the N curves. 2

3 Type GS- and G- SQURE & IRULR FRME iffuser Type GS- (Square) Opening Size - im 25mm Foam ollar 10 mm Overall Size/ia - im Type G- (ircular),,, OVERLL iffuser with Side Entry iffuser with Top Entry im (GS-) im E (G-) im (Type GS-) im 1 (Type G-) amper dia. im im (GS-) im E (G-) im (Type GS-) im 1 (Type G-) im amper dia. Overall Size - im etail Section Overall Size - im etail Section etail Section Plenum for the circular face diffuser (Type G-) only requires a circular connection to the diffuser (See right). This adds an extra 50mm to box height (See im E) Plenum Fix rkt Spigot 50mm pplies to both top and side entry plenum boxes Foam Gasket Side Entry Top Entry,,, OVERLL E ,,, OVERLL E

4 SERIES G Square and ircular Fixed Swirl iffusers Type GS- SQURE FRME ONLY iffuser Pip height 19 or 25mm Please Specify Overall Size - im 25mm Foam ollar,,, OVERLL Pip height 19 or 25mm (please specify) GRI PITH iffuser with Side Entry iffuser with Top Entry im amper dia. im im im im im amper dia. Overall Size - im Overall Size - im,,, OVERLL ,,, OVERLL

5 Type GS- SQURE FRME ONLY iffuser 10 mm 25mm Foam ollar Overall Size - im,,, OVERLL GR iffuser with Side Entry iffuser with Top Entry im amper dia. im im im im im amper dia. Overall Size - im Overall Size - im,,, OVERLL ,,, OVERLL

6 SERIES G Square and ircular Fixed Swirl iffusers Type GS- SQURE FRME ONLY iffuser Overall Size - im Please Specify (Min 6.5, Max 19 mm) Face Size - im 25mm Foam ollar 30mm T-ar,,, FE Grid Pitch (500 or 600) eiling Tile by others iffuser with Side Entry iffuser with Top Entry im amper dia. im im im im im amper dia. Face Size - im Face Size - im,,, FE ,,, FE

7 Volume ontrol Options Operate with exterior handle to balance damper 100 OPEN SHUT Equals Spigot ia REF: I Iris amper REF: Q Quadrant amper Fixing STNR (WITH PLENUM) ll units are fixed to the plenum using a central screw that drives into a secondary bracket in the plenum box neck. The exposed screw head is finished to match the diffuser face to maintain aesthetics. SPEIL (WITHOUT PLENUM) For plasterboard ceiling applications without plenum box we can provide L type fixing which again screws through face of diffuser into a secondary support bracket. Please take care not to overtighen. 60 mm Max 25mm structural thickness Sizing Table IR VOLUME (l/s) IR VOLUME (l/s) IR VOLUME 500 (l/s) IR VOLUME 600 (l/s) FE STYLE 1 NOISE N PRESSURE Pa FE STYLE 2 N Pa THROW t + 10K t + 5K ISOTHERML t - 5K t - 10K 0.9/ / / / / / / / / / / / / / / / / / / /2.1 7

8 SERIES G Square and ircular Fixed Swirl iffusers Ordering Specification (iffuser) SERIES GS...,, or SERIES G... FE STYLE 1 or 2 GS PIP 19 T8 L RL 9010 (STNR FINISH) 15 OVERLL or FE PIP HEIGHT (mm) (applies to GS- only) PIP + HEIGHT TEGULR ROP (mm) (applies to GS- only) T + EPTH SPEIL FIXING...L FINISH (please specify) Ordering Specification (Plenum) NUMER REQUIRE TYPE REQUIRE: T/GS-... SE/GS- T/GS-... SE/GS- T/GS-... SE/GS- T/GS-...SE/GS- THERML / OUSTI INSULTION (SE ONLY) 12mm PYRO (Standard)... T1 25mm PYRO... T2 12mm RMFLEX...T3 SE/GS- T H600 Q I TSO Q I 15 TO FIT IFFUSER (List + Overall Size) OX HEIGHT (Where different from standard) SPIGOT & MPER OPTIONS (PLUS NOMINL SPIGOT ): No amper...ss + Quadrant....Q + ord Operated... + Iris...I + TWIN SPIGOT OPTIONS: djacent...ts Opposite...TSO 2nd SPIGOT & MPER OPTIONS (See first amper options) NUMER REQUIRE Finish GILERTS Head Office and Works GILERTS (LKPOOL) LT Gilair Works, lifton Road, lackpool. Lancashire FY4 4QT. Telephone: (01253) Fax: (01253) sales@gilbertsblackpool.com Web: Standard Finish: Polyester Powder oat White RL % Gloss. Special Finishes: PP to Stock S or RL colour. Fixing ll units are fixed to the plenum using a central screw that drives into a secondary bracket in the plenum box neck. The exposed screw head is finished to match the diffuser face to maintain aesthetics. For plasterboard ceilings without Plenum the L special fixing option can be specified. Gilberts (lackpool) Ltd reserve the right to alter the specification without notice. For our latest product data please visit The information contained in this leaflet is correct at time of going to press Size Range vailable in four standard List Sizes (Swirl ia) of,, ia.