01 GFB, DASH, DUSH - Technical Catalogue 3794 GB 2008 08

8/13/2019 01 GFB, DASH, DUSH - Technical Catalogue 3794 GB 2008 08

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Floormaster GFB, DASH, DUSH

Flkt Woods 3794GB 2008.08 1 Specifications are subject of alteration without further notice.


The Floormaster system with its displacement air management technologypermits the design of installations with a low sound level, good air comfortand high ventilation efficiency.

Floormaster air terminal devices for premises with tiered seating are intendedfor meeting rooms, lecture theatres, cinemas and concert halls.From the point of view of comfort, it may be difficult to supply the wholeof the desired flow with only air terminal devices for premises with tieredseating, and combination with a few larger devices in appropriate places maybe advantageous.The devices are powder-coated for a high surface finish and good impact andscratch resistance.Standard colour White RAL-9010, gloss 30, equivalent to NCS S 0502-Y. Othercolours on request.GFB is intended for mounting in floors under chairs. The device is equippedwith a long sleeve with a nozzle for connection to a pressure chamber.DASH is rectangular and is intended for mounting in the riser. The device isequipped with a connection box . The device can be connected to a duct or a

pressure chamber, from below or from the rear.DUSH is round and is intended for mounting in the riser. The device can beconnected to a duct or a pressure chamber

Quick Selection

Floormaster air terminal devices for premises with tiered seating

Flow Recommended flow 12 l/s(43 m/h) and devicePositioning Positioning

on floor treadPositioning in

riser RectangularPositioning inriser Round

Device GFB DASH DUSHConnection 81 mm 100 mm 125 mm

Product Facts

Floormaster air terminal devicesfor premises with tiered seating.

Options for different positions Very low sound level Even diffusion pattern Short comfort boundaries

Product code example

GFB-081-023DASH-100-0DUSH-125


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Floormaster GFB


Pressure drop, air flow, sound level

13 157

70

q l/s

50

40

30

20

15

119Sleeve length mm

500

3005 10 12

10 20 228LAdB(A)

Dp t

Pa

Standard

Special

pt = total pressure drop, Pa

q = air flow, l/s

LA = sound level, dB(A), applies for room attenuation of 4dB (room absorption area 10 m2). The sound level applieswith the device connected to a pressure chamber.

ComfortZone

For a supply air flow of 11 l/s (40 m3/h) and high thermalload, the air movements 360 mm from the surface of thedevice at the front edge of the chair are in accordancewith the following table.

Height over f loor, mm Air Velocity,m/s50 0.12150 0.07

In view of these low air velocitys, no comfort boundariesare given.

Sound Data

Sound power level in octave bands

The sound power level in octave bands is obtained byadding the correction (with sign) in the table to the soundlevel obtained from the graph above.

Terminal Octave bands, centre frequency Hz 63 125 250 500 1000 2000 4000 8000

GFB +5 -6 -4 +2 -5 -10 -15 -20Tol dB 6 3 2 2 2 2 2 3

Sound attenuation


GFB 21 16 12 7 3 1 0 0

Tol dB 6 3 2 2 2 2 2 3

Dimensions and weights

Floormaster air terminal device for premises

with tiered seating GFB

B

A

F

K

H

4 x 6

D

E

C

G

L

+50

L = Connection flangeK = Floor level

A B C D E F G H Weight[mm] [mm] [mm] [mm] [mm] [mm] [mm] [mm] [kg]190 145 46 81 87 150 120 150 1.5

Material and surface finishSupply air terminal device GFB is manufactured of heavyhot-dip galvanized steel sheet, SS 1151. The outer jacket isperforated with circular holes and with a large free area.The device is powder-coated as standard in white.

Instructions

Directions for installation, adjustment and care are set outin detail in our technical instruction which accompanieseach product. The instruction is also accessible onwww.flaktwoods.com.

Descriptive text

Supply air terminal device Floormaster GFBmanufactured by Flkt Woods with a standard/specialsleeve and with/without connection flange.

Product code

Floormaster air terminal devicefor premises with tiered seatingGFB-081-023


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Floormaster DASH



5

50

30

20

10

5 10 20q, l/s

100

10 dB(A)

15

20

Dpt, Pa

Sound data


The sound power level in octave bands is obtained byadding the correction (with sign) in the table to the soundlevel obtained from the graph above.

Terminal Octave bands, centre frequency Hz 63 125 250 500 1000 2000 4000 8000DASH 0 +6 +9 +4 -5 -14 -16 -15Tol dB 6 3 2 2 2 2 2 3

Sound attenuation


DASH 24 20 14 13 15 15 16 14Tol dB 6 3 2 2 2 2 2 3


Rectangular air terminal device for premiseswith tiered seating DASH

220 (a = 0)240 (a = 1 , 2)

70

130

24

a = 1

a = 2

100

A

B

CD

A B C D Weight[mm] [mm] [mm] [mm] [kg]427 397 173 147 3.3

Installation

Material and surfacefinishDASH is manufactured of heavy hot-dip galvanized steelsheet, SS 1151.

The front grille is perforated with square holes. SeeDimensions and weights. The device is powder-coatedin white as standard, RAL9010. Powder coating gives aclean, strong and impact-resistant surface.

Baffle plates and diffusion cones are made from a poroustextile material.

Adjustment

The device has a well defined pressure drop, which

means that the desired air flow is achieved by setting aspecific pressure in the pressure chamber. This can beadapted from case to case. As a standard value, k = 2.56.

Instructions


Descriptive text

Supply air terminal device DASH manufactured by FlktWoods for duct connection/for connection to a pressurechamber.

Product code

Floormaster air terminal devicefor premises with tiered seatingDASH-100-a

Connection side (a)0 = pressure chamber, rear opening1 = duct from the rear2 = duct from below


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Floormaster DUSH



5

20

10

10 12 14 16

q, l/s

125

10 dB(A)

15

Dpt, Pa

Sound data


The Sound power level in octave bands is obtained byadding the correction(with sign) in the table to the soundlevel obtained from the graph above.


DUSH +6 +3 +9 +5 -5 -13 -17 -21Tol dB 6 3 2 2 2 2 2 3

Sound attenuation


DUSH 18 18 14 7 3 1 4 6Tol dB 6 3 2 2 2 2 2 3

Installation

Alternative Pressure Chamber

"Alternative Duct Connection"


Circular air terminal device for premises with

tiered seating DUSH

35

136

200

99 eller124ext.

200

2 x hl 6

A B C D Weight[mm] [mm] [mm] [mm] [kg]200 195 40 124 1.4

Material and surface finish

DASH is manufactured of heavy hot-dip galvanized steelsheet, SS 1151.

The front grille is perforated with square holes. SeeDimensions and weights. The device is powder-coatedin white as standard, RAL9010. Powder coating gives aclean, strong and impact-resistant surface.

Baffle plates and diffusion cones are made from a poroustextile material.

Adjustment

The device has a well defined pressure drop, whichmeans that the desired air flow is achieved by setting aspecific pressure in the pressure chamber. This can beadapted from case to case. As a standard value, k = 3.5.

Instructions


Descriptive text

Supply air terminal device DASH manufactured by FlktWoods for duct connection/for connection to a pressurechamber.

Product code

Circular air terminal devicefor premises with tiered seatingDUSH-125

Dimension125 = sleeve 125

01 GFB, DASH, DUSH - Technical Catalogue 3794 GB 2008 08

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