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PRODUCT BROCHURE

BDF-FD & -ADBar Displacement Floor Diffuser

BDF : 082020

BMF-ADBar Multistream Floor Diffuser

Bar Displacement Diffuser

BDF : 082020

Figure 1

DESCRIPTION

For installations alongside facades or close to occupants,

it is recommended to locate the induction slot to direct

pattern makes the BMF-AD the best choice i f the

cooling temperature differential between supply air and

previously described models, this version maximises the

In all cases, heat and contaminants stratify at a high level

temperature differentials are achievable – dependent on

free cooling range typically achieved by the elevated

supply air temperature, as well as from the potential to

qua l i t y r e su l t i ng f r om the imp roved ven t i l a t i on

BDF-FD, a true

displacement diffuser with a double-layer perforated

cassette, the BDF-AD, a displacement diffuser with an

additional induction slot to control the air pattern, and the

BMF-AD, which maximises induction in combination

BDF-FD is spread evenly across a

double-layer displacement cassette before oozing out of

produces a low velocity, low level lake of high quality

low level occupancy microclimate of enhanced indoor air

quality is created, in which convective currents from

occupants and other heat sources rise by convection,

drawing in high qual i ty replenishment air f rom the

occupancy microclimate to envelope these heat sources

BDF-AD features an additional induction slot that

Intense mix ing produces rapid veloci ty decay and

temperature equalisation, which increases the maximum

permissible cooling temperature differential, and allows

Bar Displacement Diffuser 2

BDF : 082020

Figure 3: BDF grille with bars spanning widthwise

Figure 2: BDF grille with bars spanning lengthwise

VARIANTS

Bar D

ispl

acem

ent D

iffus

er

3

BDF

: 082

020

VA

RIA

NTS

100

200

Mode

l: BDF

-FD

Reco

mmen

ded m

ode:

Cooli

ng on

lyRe

comm

ende

d dT

(Tro

om -

T supp

ly ):

-4 K

Ma

x. ho

rizon

tal co

vera

ge: 7

mGr

ille op

tions

: Bar

s spa

n len

gthwi

se or

widt

hwise

100

200

300

Mode

l: BDF

-AD

Reco

mmen

ded m

ode:

Cooli

ng an

d hea

ting

Reco

mmen

ded d

T (T

room

- T su

pply

): -6

K

Max.

horiz

ontal

cove

rage

: 4m

Grille

optio

ns: B

ars s

pan w

idthw

ise

400

100

200

300

Mode

l: BDF

-AD

Reco

mmen

ded m

ode:

Cooli

ng an

d hea

ting

Reco

mmen

ded d

T (T

room

- T su

pply

): -5

K

Max.

horiz

ontal

cove

rage

: 6m

(one

dire

ctopn

only)

Grille

optio

ns: B

ars s

pan w

idthw

ise

Mode

l: BMF

-AD

Reco

mmen

ded m

ode:

Cooli

ng an

d hea

ting

Reco

mmen

ded d

T (T

room

- T su

pply

): -8

K

Max.

horiz

ontal

cove

rage

: 6m

Grille

optio

ns: B

ars s

pan l

ength

wise

100

200 0

Figu

re 4

Figu

re 5 20

0

400

600

800

Figu

re 7

Figu

re 6

TOP

VIE

WS

IDE

VIEW

NO

TES

DIMENSIONS

Bar Displacement Diffuser 4

BDF : 082020

L

W

DH

TECHNICAL DATA

Length [mm]

1000

1500

1000

1500

1000

1500

1000

1500

1000

1500

1000

1500

BDF-FD

BDF-AD

Width [mm]

200

200

300

300

200

200

300

300

200

300

200

300

Qty x D,sp

2 x DN125

2 x DN125

2 x DN125

2 x DN150

2 x DN150

3 x DN150

2 x DN180

3 x DN180

2 x DN200

2 x DN250

2 x DN250

2 x DN250

H [mm]

190

190

190

190

220

220

220

220

300

300

300

300

BMF-AD

SECTION-DETAIL LENGTHWISE SPAN GRILLE

SECTION-DETAIL WIDTHWISE SPAN GRILLE

12.0

7.513.8

20.0

Bar Displacement Diffuser 5

BDF : 082020

TECHNICAL DATA

TOTAL PRESSURE LOSS SOUND POWER LEVEL

30

20

40

50

60

708090

100

200

300

400

30

20

40

50

60

708090

100

200

300

400

4 5 6 7 8 9 20 20 25 30 35 40 15 30 10

1

2

3

5

67

8

9

1110

12 12

11

9

1

23

4

5

67

8

10

4

[L/s]

Pt [Pa] Lwa[dB(A)]

1 - BDF-FD-200-10002 - BDF-FD-200-15003 - BDF-FD-300-10004 - BDF-FD-300-1500

5 - BDF-AD-200-10006 - BDF-AD-200-15007 - BDF-AD-300-10008 - BDF-AD-300-1500

9 - BMF-AD-200-100010 - BMF-AD-200-150011 - BMF-AD-300-100012 - BMF-AD-300-1500

B_F-__-__-____-___-___

NOMINAL WIDTH: - 200 mm - 300 mm - Special width NOMINAL LENGTH: - 1000 mm - 1500 mm - Special length

MODEL: - BDF: Bar Displacement Floor Diffuser - BMF: Bar Multistream Floor Diffuser

TYPE OF GRILLE: - W : Widthwise bar span - L : Lengthwise bar span

Bar Displacement Diffuser 6

BDF : 082020

ORDER DETAILS

Note:Products supplied may differ slightly from those described in this technical brochure due to on-going product development.

Products supplied may differ slightly from those described in this technical brochure due to on-going product development.

AIR PATTERN: - FD: Fixed Direction - AD: Adjustable Direction

®

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