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®

PRODUCT BROCHURE

LMC-AD : 062017

LMC-ADLinear Multistream Ceiling Di�user

LMC-AD : 062017

The SMARTEMP® Linear Multistream Ceiling Diffuser,

type LMC-AD (figure 1), is a multi-nozzle linear slot

diffuser with adjustable discharge direction that can be

flush mounted in a ceiling or freely suspended (ie no

Coanda attachment to the ceiling required).

The diffuser's 1-to-6 linear slots house a plurality of

barrel nozzles, each with an adjustable guide vane,

delivering highly inductive discharge by breaking the

supply air stream up into a multitude of alternating air jets.

Each barrel nozzle is made of black polycarbonate

located between linear aluminium extrusions that are

anodised or powder coated. Each guide vane is readily

adjustable to any one of five discharge patterns (figure 2

- three 2-way blow examples shown) to change the

discharge angle from horizontal through diagonal to

vertical (figures 3 & 4). Two-way discharge is standard

(figures 3 & 4); one-way discharge is available as an

option (figure 5).

Intense mixing at the diffuser discharge face produces

high induction that strongly dilutes the supply air stream

with large quantities of room air. Rapid temperature

equalisation of the supply air stream with room air

occurs, preventing cold air dumping, thereby ensuring

uniform temperature distribution (no cold and draughty

or hot and stagnant spots) and high comfort levels in the

space. Heating performance is also improved.

The stable discharge characteristics of the diffuser over a

wide range of supply air temperatures and volume flow

rates make the LMC-AD suitable both for constant flow

and VAV systems, including low temperature air supply.

DESCRIPTION

Linear Multistream Ceiling Di�user 1

LMC-AD

Slots

1

2

3

4

5

6

*Max based on 35 Pa Pt max (including side-entry connection box).

Volume flow rate*

∆T = -16 K ∆T = -12 K ∆T = -8 K 9-36 8-36 6-36

19-75 16-75 13-75

29-116 25-116 21-116

38-150 33-150 27-150

47-188 41-188 33-188

57-228 49-228 40-228

V [L/s/m] V [L/s/m] V [L/s/m]

V

1 - Plenum Box

2 - Supply Air Diffuser

3 - Return Air Diffuser

4 - Expansion Bracket

5 - Joining Strip

6 - Corner piece

7 - End Flange1

2

3

4

5

6

7

Figure 1

Figure 6

Figure 3

Figure 5

Figure 4

CONSTRUCTION

Figure 2

DISCHARGE DIRECTION EXAMPLESWITH 2-WAY PATTERN

LMC-AD : 062017


Direction A Direction C Direction E

*Check exact dimension with local supplier

Number of Slots (n) 131

48

27

41

200

81

124

149

259

76

55

69

255

109

179

224

387

104

83

97

300

137

224

249

4115

132

111

125

325

165

249

279

n28•n+3

28•n+20

28•n-1

41+(n-1)•28

D+76

Wn+50

<3.6m/s

<3.6m/s

Width Flangeless Face Wn [mm]Width Flanged Face Wf [mm]

Width of Diffuser Throat Wt [mm]

Recommended Plenum Height A [mm]*Recommended Plenum Width B [mm]*

Recommended Spigot Dimension D [mm]* per 1 m length

DIMENSIONS

TECHNICAL DATA

LMC-AD : 062017


Width of Plenum Neck Wcn [mm]

Recommended Spigot Dimension D [mm]* per 1.5 m length

5143

160

139

149

355

193

279

314

6171

188

167

176

390

221

314

354

D A

B

45

Wcn

4646

Wf

Wn Wn

Wf Wf

Wn

Wt Wt Wt

n = 1 n = 2 n = 4

AD

B

45

Wt

25

Standard neck lengths: 1050, 1200, 1350, 1500 mm. Other lengths on request.Neck length (including screw heads) increases by 3.0 mm per end flange.

LMC-AD : 062017


NO

TES

TO N

OM

OG

RA

M O

N P

AG

E 6

Ther

mal

Com

fort

Gui

de:

AD

PI ≥

95%

: Pr

emiu

m c

omfo

rt s

eden

tary

act

ivity

, suc

h as

in a

udito

ria.

AD

PI ≥

90%

: H

igh

com

fort

nea

r-se

dent

ary

activ

ity, s

uch

as in

boa

rd ro

oms,

hig

h en

d of

fices

and

libr

arie

s.A

DP

I ≥ 8

0%:

Goo

d co

mfo

rt n

ear-

sede

ntar

y ac

tivity

, suc

h as

in o

pen-

plan

offi

ces

and

mee

ting

room

s.A

DP

I ≥ 7

0%:

Stan

dard

com

fort

med

ium

act

ivity

, suc

h as

in tr

ansi

ent s

pace

s, re

tail

and

lobb

ies.

Com

men

ts /

Nom

ogra

m v

alid

for:

Adju

stm

ents

:

Hea

ting

valid

for 1

00%

hig

h-le

vel r

etur

n.

For l

ow-le

vel r

etur

n:

∆Tm

ax.h

eatin

g ≈ (1

+ (L

RA%

)/100

) • ∆

T max

, whe

re L

RA%

= %

low

-leve

l ret

urn.

Va

lid fo

r dis

char

ge fr

om c

lose

d ce

iling.

Fo

r fre

ely

susp

ende

d di

ffuse

r:

H

eatin

g ∆T

max

.free

ly s

uspe

nded

≈ ∆

T max

.hea

ting /

1.2

Rec

omm

ende

d Ai

r Pat

tern

Set

tings

:

For H

= 2

to 3

m:

A: 0

° to

-10°

dis

char

ge to

the

horiz

onta

l. Fo

r H =

3 to

4 m

: B:

0°

to -2

0° d

isch

arge

to th

e ho

rizon

tal.

For H

= 4

to 5

m:

C: ≈

-40°

dis

char

ge to

the

horiz

onta

l.

To

tal p

ress

ure

(Pt)

is in

clus

ive

of s

ide-

entry

con

nect

ion

box

pres

sure

loss

.

Dra

w a

line

ver

tical

ly d

own

the

nom

ogra

m fo

r 2-w

ay b

low

, or c

orre

ct fo

r 1-w

ay b

low

.

For h

eigh

t ≤ 2

.7 m

sel

ect 2

.7; o

ther

wis

e se

lect

hei

ght t

wic

e (o

nce

in th

e gr

ey z

one;

onc

e in

the

whi

te z

one)

.

C

min is

eith

er th

e m

inim

um s

paci

ng b

etw

een

two

2-w

ay b

low

diff

user

row

s (h

alve

this

val

ue fo

r thr

ow to

wal

ls /

glaz

ing)

or t

he m

inim

um th

row

of a

1-w

ay

blow

diff

user

row

.

Cm

ax is

eith

er th

e m

axim

um s

paci

ng b

etw

een

two

2-w

ay b

low

diff

user

row

s (h

alve

this

val

ue fo

r thr

ow to

wal

ls /

glaz

ing)

or t

he m

axim

um th

row

of a

1-

way

blo

w d

iffus

er ro

w. A

ctiv

e Le

ngth

Rat

io (R

LA) i

s th

e ra

tio o

f the

act

ive

leng

th L

A re

lativ

e to

the

room

leng

th L

. D

eter

min

e C

max

twic

e (o

nce

for c

oolin

g ∆T

; onc

e fo

r dis

char

ge h

eigh

t) th

en s

elec

t the

low

er o

f the

two

outp

uts.

Sele

ct d

esire

d co

mfo

rt le

vel t

o de

term

ine

min

imum

and

max

imum

spa

cing

or t

hrow

(Cm

in &

Cm

ax) a

nd m

inim

um d

isch

arge

hei

ght (

Hm

in).

Hm

in fo

r dis

char

ge fr

om c

lose

d ce

iling

. Fo

r fre

ely

susp

ende

d di

ffuse

r:

Hm

in.fr

eely

sus

pend

ed ≈

Hm

in •

1.1

So

und

pres

sure

leve

l LP

[NC

/m] i

s va

lid in

a s

tand

ard

com

mer

cial

offi

ce o

nly

with

2.7

m to

3 m

cei

ling.

2 9 5 7 6 8 3

0 to

-10°

0 to

-20°

≈ -4

0°

4

LMC-AD : 062017


Layo

ut R

ecom

men

datio

ns:

≤ C/

8

≤ C/

8

C C/

2 C/

2

L

2-w

2-w

1-w

≤ C/

4

2-w

2-w

L A.1

Refe

r to

nom

ogra

ms f

or p

erfo

rman

ce d

ata.

Not

es:

• Sp

acin

g:

C min

≤ C

≤ C

max

C wal

ls = C

/2

• Ac

tive

Leng

th R

atio:

R LA =

LA /

L, w

here

L A ≥

0.1

• L

, and

L A =

Σ L

A.i

• Ai

r Patt

ern:

2-w

: 2-w

ay b

low

1-w

: 1-w

ay b

low

L A.2

≤ C/

8

≤ C/

8

L ≤

C/4

L A.1

L A.2

C

1-w

1-w

1-w

LMC-AD : 062017


LMC-

AD

REF

ER T

O N

OTE

S O

N P

AG

E 4

1

10

H =

2 5

m

15

30

ADPI

≥ 9

5%; ṽ

≤ 0

.20

m/s

:

: 20

H min

[m]

20

10

20

0.8

2

10

1

10

33

240 30

40

50

60

70

80

90

10

0

120

140

160

180

200

220

L W

L P*

L/s/

m

1 0.

6

-16

K

-12

K

-8 K

C max

[m]

2.

32

0.5

1 10

800

600

500

400

300

200

100

700 40

m3 /h

/m

24

40

50

9 25

35

Soun

d Po

wer

, LW

[dB(

A)/m

] So

und

Pres

sure

, LP [

NC/

m]*

2.4

2.2

2.1

20

10

ADPI

≥ 9

0%; ṽ

≤ 0

.25

m/s

; DR

≈ 20

% @

T=2

6°C:

ADPI

≥ 8

0%; ṽ

≤ 0

.29

m/s

:

ADPI

≥ 7

0%; ṽ

≤ 0

.33

m/s

; DR

≈ 30

% @

T=2

6°C:

5 4 2 3 1 6

Slot

s 6 5 4 2 1

+20

K

+16

K

+12

K

+8 K

+4 K

0 K

Heati

ng

∆Tm

ax [K

] [d

B(A)

/m]

[NC/

m]

[Pa]

0.2

1

0.5

12

-8 K

-1

2 K

1 1 18

-16

K

5

5 10

5

C min

Tota

l Pre

ssur

e, P

t [Pa

]

10

5 1

5 4 3 2 1

[m]

0.3

13

10

10

60

30

40 5

0 27

5 3

m

4 m

5 m

2.7

m

H

= 2

m

3

P t

∆T

[K] = 4

Cool

ing

1 2

4 9

3

Cool

ing

∆T =

Cool

ing

∆T [K

]

6 20

30

0.8

2 20

30

30 4

0

≤2.7

H

[m] =

5

6 7

5

R LA =

0.1

0.

5 1.

0

2.6

2.4

2.3

2.7

2 2.8

2.6

2.5

2.9

3.0

2.8

2.7

≤2

5 ≥1

0

+1

L/s/

m2

A B C

2-w

1-w

2.65

Air P

atter

n (2

-way

/1-w

ay)

∆T [K

] = 4

2

25

3 4

35

2 0.

7 1

Air D

irecti

on1 :

2.5

2

15

67

Not

es:

*

8

30

20

+18

K

+14

K

+10

K

+6 K

+2 K

Base

d on

10

dB ro

om a

bsor

ption

.Ai

r Dire

ction

: A ≈

0 to

-10°

; B ≈

0 to

-20°

; C ≈

-40°

LMC-AD : 062017


EXAM

PLE:

LM

C-A

D-2

.1

Det

erm

ine

perfo

rman

ce p

aram

eter

s fo

r a ro

w o

f LM

C-A

D-2

.1 (t

wo-

slot

; one

-way

blo

w) o

pera

ting

at 6

7 L/

s, fr

eely

sus

pend

ed a

t 5 m

hei

ght,

supp

lyin

g ap

prox

imat

ely

2 L/

s/m

2 to

a lib

rary

. Th

e su

m o

f the

diff

user

leng

ths

span

s 30

% o

f the

libr

ary

leng

th.

The

supp

ly-to

-roo

m te

mpe

ratu

re

diffe

rent

ial w

hen

cool

ing

is -1

6 K.

100

% re

turn

air

is fr

om a

low

leve

l.

Sele

ct a

dou

ble

slot

(Slo

ts 2

).

5 m

dis

char

ge h

eigh

t req

uire

s th

e di

ffuse

r air

patte

rn to

be

set t

o C

(≈ -4

0° fr

om th

e ho

rizon

tal).

Sele

ct ≤

2 L

/s/m

2 spe

cific

airf

low

, whi

ch g

ives

a m

axim

um h

eatin

g te

mpe

ratu

re d

iffer

entia

l (∆T

max

) of +

1 K,

val

id fo

r dis

char

ge fr

om a

cl

osed

cei

ling

and

100%

hig

h-le

vel r

etur

n.

Fo

r 100

% lo

w-le

vel r

etur

n, ∆

T max

.hea

ting ≈

(1 +

(LR

A%)/1

00) x

∆T m

ax ≈

(1 +

(100

/100

)) •

1 K

≈ +2

K.

As th

e di

ffuse

r is

freel

y-su

spen

ded,

∆T m

ax.fr

eely

sus

pend

ed ≈

∆T m

ax.h

eatin

g / 1

.2 ≈

+1.

7

K.

(Thi

s is

not

suf

ficie

nt fo

r hea

ting.

Con

side

r usi

ng th

e Sm

arte

mp

HSC

-AD

if h

eatin

g is

requ

ired.

)

The

tota

l pre

ssur

e (P

t) is

27

Pa, i

nclu

sive

of s

ide-

entry

con

nect

ion

box

pres

sure

loss

.

To d

eter

min

e la

yout

reco

mm

enda

tions

in c

oolin

g m

ode,

sel

ect 1

-w (o

ne-w

ay b

low

) air

patte

rn.

Se

lect

5 m

dis

char

ge h

eigh

t tw

ice

(onc

e in

the

grey

zon

e; o

nce

in th

e w

hite

zon

e).

Se

lect

-16

K co

olin

g.

Se

lect

RLA

= 0

.3 (i

e 30

% a

ctiv

e le

ngth

ratio

for 3

0% d

iffus

er s

pan

acro

ss th

e lib

rary

leng

th).

Sele

ct -1

6 K

cool

ing

and

5 m

dis

char

ge h

eigh

t.

For a

libr

ary,

sel

ect A

DPI

= 9

0%.

Cm

in b

etw

een

two

diffu

ser r

ows

is 1

2 m

(6 m

to w

alls

). H

min

free

ly s

uspe

nded

≈ H

min •

1.1

≈ 2

.65 •

1.1

≈ 2.

9 m

. C

max

bet

wee

n tw

o di

ffuse

r row

s is

15

m (i

e th

e lo

wer

of 1

5 m

for -

16 K

coo

ling

and

30 m

for 5

m d

isch

arge

hei

ght)

or 7

.5 m

to w

alls

.

Th

e A-

wei

ghte

d so

und

pow

er le

vel (

L W) o

f the

diff

user

is 3

3 dB

(A).

As

this

is a

larg

e vo

lum

e lib

rary

(and

not

a 2

.7 to

3 m

cei

ling

heig

ht

offic

e) th

e so

und

pres

sure

leve

l (L P

) sho

uld

not b

e us

ed (i

e on

ly L

W s

houl

d be

use

d fo

r aco

ustic

al c

alcu

latio

ns).

1 2 3 4 5 6 7 8 9

LMC-AD-____-__.___-____-___-___-__-__-___

PROFILE COLOUR:- RAL______ (Signal White RAL9003* standard).

ACCESSORIES:- 0* - Diffuser only.- Kt - With uninsulated connection box clipped to diffuser throat.- Kn - With uninsulated connection box screwed to into diffuser neck.- KIt - With internally insulated connection box clipped to diffuser throat.- KIn - With internally insulated connection box screwed into diffuser neck.

PROFILE TYPE:- F* - With side flanges.- N - Flangeless.

FIXING :- 0* - Without accessories / by others.- EX - Expansion bracket.

AIR PATTERN & DIRECTION:- 2A* - 2-way horizontal, position A (0 to -10°).- 1A - 1-way horizontal, position A (0 to -10°).- 2B - 2-way horizontal, position B (0 to -20°).- 1B - 1-way horizontal, position B (0 to -20°).- 2C - 2-way diagonal, position C (≈ -40°).- 1C - 1-way diagonal, position C (≈ -40°).- 2D - 2-way vertical, position D (broad, short).- 1D - 1-way vertical, position D (broad, short).- 2E - 2-way vertical, position E (narrow, long).- 1E - 1-way vertical, position E (narrow, long).

DIFFUSER ENDS:- 0 - Without end flange.- E1 - 1 End flange + 2 joining strips.- E2* - 2 End flanges.- J - 2 Joining strips.

NOMINAL NECK LENGTH:- 1050.- 1200.- 1350.- 1500.- Other lengths available on request.

MODEL:- Linear Multistream Ceiling - Adjustable Direction.

NUMBER OF SLOTS:- 1, 2, 3, 4, 5, 6.- Other slots available on request.

Note: * Standard, if no type code entered

ORDER DETAILS

LMC-AD : 062017


BARREL COLOUR:- B* - Black.- W - White.

PRODUCT BROCHURE - Temperzone · 167 176 390 221 314 354 D A B 45 Wcn 46 46 Wf Wn Wn Wf Wf Wn Wt Wt...

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Transcript of PRODUCT BROCHURE - Temperzone · 167 176 390 221 314 354 D A B 45 Wcn 46 46 Wf Wn Wn Wf Wf Wn Wt Wt...