dbb - schako · ceiling air diffuser dbb 05/14 - 3 construction subject to change. no return...

Ferdinand Schad KGSteigstraße 25-27

D-78600 KolbingenTelephone +49 (0) 74 63 - 980 - 0

Fax +49 (0) 74 63 - 980 - [email protected]

Ceiling air diffuserDBB

Contents

Construction subject to change. No return possible!

Ceiling air diffuser DBB

05/14 - 2 27.03.2019Version:

Description ........................................................................................................................................3Construction .............................................................................................................................................................................. 3Model ......................................................................................................................................................................................... 3Accessories ................................................................................................................................................................................ 3Fastening ................................................................................................................................................................................... 3

Models and dimensions .........................................................................................................................4Air throw pattern ........................................................................................................................................................................ 4Dimensions ................................................................................................................................................................................ 5Dimensions of accessories ........................................................................................................................................................ 7Fastening methods ..................................................................................................................................................................... 8

Technical data ....................................................................................................................................9Pressure loss and noise level ..................................................................................................................................................... 9Jet path .................................................................................................................................................................................... 13Critical throw ........................................................................................................................................................................... 16Induction ratios ........................................................................................................................................................................ 17Temperature ratios.................................................................................................................................................................... 19

Legend ........................................................................................................................................... 20Order code DBB ................................................................................................................................. 21Order code AK DBB ............................................................................................................................. 23Specification texts .............................................................................................................................. 25


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DescriptionThe characteristic feature of the ceiling air diffuser type DBB forsupply and return air is its high flexibility. The integrated bladesallow many air distribution patterns even later on. It is often thecase that unforeseen installations of components into the ceil-ing make it necessary to change the air throw pattern on site.Some of the many available air throw options are shown below.

Attention:As standard, the ceiling air diffuser type DBB-...-A-... in returnair model is delivered with blades. Only for large air volumes willthe DBB return air model be delivered without blades on requestby the customer. This model is only available with hit-and-missdamper painted in black!

Construction

Model

Accessories

Fastening

Faceplate

- Sheet steel painted to RAL 9010 (-SB-9010, white)

- Galvanised sheet steel (-SV-0000)

- Natural colour anodised aluminium (E6/EV1) (only possi-ble with concealed mounting, -AL-ELOX)

Blades

- Plastic, similar to RAL colour 9010 (white, -L9010) or RAL9005 (black, standard -L9005).

- Aluminium painted to the RAL colour of the faceplate (atan extra charge) The painted blades cannot be adjustedsubsequently (-Axxxx).

- Natural colour anodised aluminium (-AELOX)

DBB-A - one- or two-way throw

DBB-B - two- or three-way throw

DBB-C - three- or four way throw

DBB-...-Z1- 1-way supply air (not possible for models B and C)

DBB-...-Z2- 2-way supply air (not possible for model C)

DBB-...-Z3- 3-way supply air (not possible for model A)

DBB-...-Z4- 4-way supply air (not possible for models A and B)

DBB-...-AA- Return air without blades

DBB-...-AB- Return air with blades

Plenum box (-AK-50)

- Galvanised sheet steel (only available without hit-and-missdamper) with integrated perforated straightener (for sup-ply air model only) and fixing lugs. Inside painted to RAL9005 (black, with return air model only).

ball-impact guard (-BS)

- Steel painted to the RAL colour of the faceplate

Rubber lip seal (-GD1)

- Special rubber

- in the plenum box at the connection spigot

Damper (-DK1)

- in plenum box

- Damper made of galvanised sheet steel

- Damper fastening made of plastic

Hit-and-miss damper (-SS)

- for air volume regulation, made of galvanised sheet steel

Internal insulation (-Ii)

- thermal insulation at the inside of the plenum box

External insulation (-Ia)

- thermal insulation at the outside of the plenum box

Screw mounting (-SM)

- Standard, screws must be provided on site

Concealed mounting (-VM, standard for faceplate made of alu-minium)

- only available together with a plenum box


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Models and dimensionsAir throw pattern

DBB-A-...

DBB-B-... / DBB-C-...

Air throw pattern

Model "A" Model "B" Model "C"

1-waythrow

- -

2-waythrow

-

3-waythrow

-

4-waythrow

- -

Number of longitudinal slots 2 4 6

H 115 215 315

L

325

425

525

625

825

1025

1225

Number of longitudinal slots 4 6

H 215 315 Number of transverse slots

L

425 1

525 2

625 2

825 3

1025 3

1225 4


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DimensionsDBB-...-SM-..., with plenum box (-AK) with lateral spigot (-S1)

Available sizes ASK -S1

All combined lengths and heigths available!

Grilles cannot be fitted with a hit-and-miss damper if a plenumbox is attached, i.e., it can either be fitted with a hit-and-missdamper or a plenum box.

* With the model DBB-A-... from L>825 with intermediate rail.

See page 7 for detail Y.

Spigot arrangement

Dimensions for spigot from above (-S0) and spigot front side (-S4) upon request.

exte

rnal

*

with return air in-

side painted to

RAL 9005 (black)

115 215 315 H

152 252 352 B1

118 218 318 KBS

125 225 325 B4

L L1 KL ød KHS ød KHS ød KHS

325 350 320 158 245 198 285 248 335

425 450 420 158 245 198 285 248 335

525 550 520 158 245 198 285 248 335

625 650 620 158 245 248 335 313 400

825* 850 820 198 285 248 335 313 400

1025* 1050 1020 198 285 248 335 313 400

1225* 1250 1220 198 285 248 335 313 400

- Lateral spigot (-S1, standard)

- Spigot from above (-S0)

- Spigot front side (-S4)

-S1

-S0-S4


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Ceiling air diffuser type DBB as band design2-part if length of band BL ≤ 2025 mm

multi-part for a band length BL > 2025 mm

Ceiling air diffuser type DBB as band design with plenum box2-part if length of band BL ≤ 2025 mm

multi-part for a band length BL > 2025 mm

Length of band (BL)

End piece (ES) End piece (ES)

Length of band +25

* With the model DBB-A-... from

L>825 with intermediate rail.

1.) The end pieces can be manu-factured with length from 506.5 to 1,012 mm.Length of band (BL)

Length of band +25

End piece 1/2 difference 1.)Sections 1012

* **

End piece 1/2 difference 1.)

Length of band (BL)

End piece -27.5 End piece -27.5

End piece (ES) End piece (ES)Length of band +25

* With the model DBB-A-... from

L>825 with intermediate rail.

1.) The end pieces can be manu-factured with length from 506.5 to 1,012 mm.

Length of band +25

End piece -27.5 End piece -27.5

Sections 1012 End piece 1/2 difference 1.)

Sections -27.5 mm

Length of band (BL)* **

25

End piece 1/2 difference 1.)


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Dimensions of accessoriesHit-and-miss damper (-SS)

Rubber lip seal (-GD1)Detail Y

ROB version (-ROB)Removable diffuser plate,damper and volumetric flowmeter.

Insulation for plenum box AK

Ball-impact guard (-BS)

Detail Z

Available sizes

Damper (-DK1)

internal (-Ii) external (-Ia)

H B3 B6 B7 L L1 L3

115 112 150 116 325 350 310

215 212 250 216 425 450 410

315 312 350 316 525 550 510

625 650 610

825 850 810

1025 1050 1010

1225 1250 1210

M4017 Allen screw to DIN EN ISO 6


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Fastening methodsScrew mounting (SM) (model "DBB-C-..." shown) with 4 and, from a length of ≥ 625, with 6 raised countersunkhead tapping screws (on site)

Section A-A(Drawn rotated by 90°)

Concealed mounting (VM)(model "DBB-A-..." shown)

Detail WHole for the damper adjustment(only available for the version with damper)

Available sizes SM / VM

Indentation for slotted shallow-raised countersunk-head

tapping screw DIN ISO 7051 pitch 3.9 (on site)

only available together with a plenum box

B B1 B2 B4

115 152 118 125

215 252 218 225

315 352 318 325


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Technical dataPressure loss and noise levelDBB-A-..., B=115mm (damper OPEN) DBB-A-..., B=215mm (damper OPEN)

DBB-A-..., B=315mm (damper OPEN) DBB-B-..., B=215mm (damper OPEN)

DBB-B-..., B=315mm (damper OPEN) DBB-C-..., B=215mm (damper OPEN)


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DBB-C-..., B=315mm (damper OPEN)

the following applies to damper "CLOSED":

Maximum end velocity of jetDBB-A-..., with coanda effect, one- or two-way throw

without coanda effect: diagram value x 0.7

∆pt = diagram value x 2

LWA = diagram value + 5dB(A)


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DBB-B-..., with coanda effect, two- or three-way throwAir flow direction sideways

Main air flow direction


VS

VM/2VM/2VM

VS = VSeite = VZU x 0.16

VM = VMitte = VZU x 0.84


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DBB-C-..., with coanda effect, three- or four-way throwAir flow direction sideways

Main air flow direction


VSVS

VM/2VM/2VM

VS = VSeite = VZU x 0.15

VM = VMitte = VZU x 0.7


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Jet pathDBB-A-..., without coanda effect, one- or two-way throw

1.) Heating mode2.) Cooling mode


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DBB-B-..., without coanda effect, two- or three-way throw



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DBB-C-..., without coanda effect, three- or four-way throw



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Critical jet pathDBB-A-..., with coanda effect, one- or two-way throw

DBB-B-..., with coanda effect, two- or three-way throw


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DBB-C-..., with coanda effect, three- or four-way throw

Induction ratiosDBB-A-..., with coanda effect, one- or two-way throw



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Temperature ratiosDBB-A-..., with coanda effect, one- or two-way throw



without coanda effect : diagram value x 0.7


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without coanda effect : diagram value x 0.7

LegendVZU (m³/h) = Supply air volume

VZU [l/s] = Supply air volume

vmax (m/s) = Maximum end velocity of jet

x (m) = horizontal throw

y (m) = vertical throw

x+y (m) = Horizontal and vertical throw

xkr (m) = Critical jet path

ρ (kg/m³) = Density

∆pt (Pa) = Pressure loss

LWA [dB(A)] = A-weighted sound power level[LWA = LWA1 + KF]

KF (-) = Correction factor

∆T0 (K) = Temperature difference between supply air temperature and room temperature (∆T0 = tZU - tR)

i (-) = Induction ratio (i = VX / VZU)

TV (-) = Temperature ratio (TV = ∆TX / ∆TO)

B (mm) = Width

L (mm) = Length

∆TX (K) = Temperature difference at point x

VX (m³/h) = total air jet volume at point x

VX [l/s] = total air jet volume at point x

tzu (°C) = Supply air temperature

tR (°C) = Room temperature


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Order code DBB

All fields must be filled when ordering

SampleDBB-A-Z1-00615-115-N-SB-9010-L9010-SM-SN-B0

Ceiling air diffuser type DBB | one- or two-way throw | 1-way supply air | grille length 625 mm | grille height 115 mm | single length | sheet steel | painted to RAL colour 9010 | plastic, painted to colour similar to RAL 9010 (white) | with screw mounting | without hit-and-miss damper | without ball-impact guard

Order details

01 - Type

02 - Model

03 - Air throw

04 - Length

05 - Height

06 - Single / band design

07 - Material

08 - Paint

09 - Blade colour

01 02 03 04 05 06

Type Model Air throw Length Height Single / band design

Example

DBB -A -Z1 -00625 -115 -N

07 08 09 10 11 12

Material Paint Blade colour Mounting hit-and-miss damper Ball-impact guard

-SB -9010 -L9010 -SM -SN -B0

DBB = ceiling air diffuser type DBB

A = one- or two-way throw

B = two- or three-way throw (available from 00425/215)

C = three- or four way throw (available from 00425/215)

Z1 = 1-way supply air (not possible for models B and C)

Z2 = 2-way supply air (not possible for model C)

Z3 = 3-way supply air (not possible for model A)

Z4 = 4-way supply air (not possible for models A and B)

AA = Return air without blades

AB = Return air with blades

00325 = Grille length 325 mm







xxxxx = Length in mm for band design (2-part for a length of band < 2025 mm, multi-part for a length of band > 2025 mm)

115 = Grille height 115 mm



N = Single length

B = Band design (length of band > 1225 mm)

SV = Galvanised sheet steel

SB = Sheet steel (standard, only available with paint)

AL = Aluminium (only possible with concealed mounting)

0000 = Without paint

9010 = painted to RAL colour 9010 (standard, white)

ELOX = Natural colour anodised (E6/EV1)

xxxx = painted to a RAL colour which can be freely selected (always with 4 digits)

00000 = without blades (standard for return air)

L9005 = plastic, similar to RAL colour 9005 (standard, black)

L9010 = plastic, similar to RAL colour 9010 (white)

Axxxx = aluminium painted to the RAL colour of the face-plate (always with 5 digits), subsequent adjustment not possible

AELOX = Natural colour anodised aluminium


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10 - Mounting

11 - Hit-and-miss damper

12 – Ball-impact guard

SM = with screw mounting (standard)

VM = concealed mounting (only possible with AK)

SN = Without hit-and-miss damper (standard)

SS = With hit-and-miss damper

B0 = without ball-impact guard (standard)

BS = with ball-impact guard


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Order code AK DBB

All fields must be filled when ordering.

SampleAK-50-00625-115-N-SM-SV-DK1-GD1-I0-KHS-KBS-SDS-S1

Plenum box, rectangular design I suitable for ceiling air diffuser type DBB-... | Grille length 625 mm | grille height 115 mm | single length | with screw mounting | galvanised sheet steel | with damper | with rubber lip seal | without box insulation | standard height of box | standard width of box | standard spigot diameter | lateral spigot

Order details

01 - Type

02 - Air diffuser

03 - Length

04 - Height

05 - Single / band design

06 - Fastening

07 - Material

08 - Damper

09 - Rubber lip seal

10 - Insulation

11 - Height of box

01 02 03 04 05 06 07

Type Air diffuser Length Height Single / band design Fastening Material

Example

AK -50 -00625 -115 -N -SM -SV

08 09 10 11 12 13 14

Damper Rubber lip seal Insulation Height of plenum box Width of box Spigot diameter Spigot position

-DK1 -GD1 -I0 -KHS -KBS -SDS -S1

AK = Plenum box, rectangular design

50 = for ceiling air diffuser type DBB-...








xxxxx = Length in mm for band design (2-part for a length of band BL < 2025 mm, multi-part for a length of band > 2025 mm)




N = Single length (standard)

B = Band design (module length max. 1225mm)

SM = Screw mounting (standard, screws must be provided on site)

VM = Concealed mounting

SV = Galvanised sheet steel (standard)

DK0 = Without damper (standard)

DK1 = with damper

GD0 = Without rubber lip seal (standard)

GD1 = With rubber lip seal

l0 = Without insulation (standard)

li = With box insulation inside

la = With box insulation outside

KHS = Height of plenum box standard

xxx = Height of plenum box in mm (minimum height = spigot diameter +72 mm, always with 3 digits)


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12 - Width of box

13 - Spigot diameter

14 - Spigot position

KBS = Standard width of box

xxx = width of box in mm (minimum width = spigot diame-ter + 30 mm, always with 3 digits)

SDS = Standard spigot diameter

xxx = Spigot diameter in mm (always with 3 digits)

S0 = Spigot from above

S1 = Lateral spigot on the box (standard)

S4 = Spigot front side (not possible with band design)


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Specification textsCeiling air diffuser type DBB for supply and return air, in rectan-gular design, free cross-section, resistance and noise level re-main constant in all blade positions. Consisting of sheet steelfaceplate painted to RAL 9010 (white), with visibleScrew mounting (-SM), with individually adjustable pivoting airdeflection blades made of plastic, similar to RAL colour 9005(black), RAL 9010 (white) or aluminium painted to the RAL col-our of the faceplate. Blades from painted aluminium not adjust-able in situ.Product: SCHAKO type DBB

Models:

Accessories:

- Version "A"

- one-way throw (-Z1)

- two-way throw (-Z2)

- model "B" (available from L = 425 / H = 225)

- two-way throw (-Z2)

- three-way throw (-Z3)

- model "C" (available from L = 425 / H = 225)

- three-way throw (-Z3)

- four-way throw (-Z4)

- Front plate made of anodized aluminium E6/EV1 in naturalcolour. Only available in connection with concealed mount-ing.

- with concealed mounting (-VM) only available in connectionwith plenum box.

- as band (-B):

- 2-parts (BL < 2025)

- multi-part (BL > 2025)

- Plenum box (-AK-50) made of galvanised sheet steel with lat-eral connection spigot (only possible without hit-and-miss damper).

- supply air model with integrated perforated straightener.

- return air model painted inside to RAL 9005 black.

- with a damper which is adjustable on the front side (-DK1) in the plenum box for the regulation of the air vol-ume.

- with rubber lip seal (-GD1) made of special rubber at the lateral spigot.

- with thermal insulation

- internal (-Ii)

- external (-la)

- Slider cover(-SS) for the air volume regulation made of gal-vanized sheet steel.

- Ball-impact guard (-BS), made of steel painted to the RAL colour of the faceplate.

dbb - schako · ceiling air diffuser dbb 05/14 - 3 construction subject to change. no return...

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