High air flow linear slot diffuser - Mp3

HIGH AIR FLOW 

LINEAR SLOT DIFFUSERS 

OVERVIEW 

CHARACTERISTICS 

APPLICATIONS 

KD 

SERIES 

OVERVIEW : 

The KD series linear diffusers allow to manage high air flows 

with minimum pressure losses and generated noise power. 

They allow to fully make us of the induction principle, 

guaranteeing optimum comfort conditions, no noticeable air 

currents and temperature uniformity, even in large areas by 

positioning the diffusers along the perimeter of the ceiling. 

CHARACTERISTICS AND OPERATION : 

The KD series diffusers are constructed from an aluminium 

diffuser body housing the different exhaust slots and a series 

of deflector blades, also in aluminium, for the horizontal or 

vertical air though. The change of direction of the air through 

can be easily made without removing the diffuser but simply 

using a supplied tool. 

The regulation of the air flow can be made by using a 

butterfly type damper in the plenum connection. 

DIFFUSER INSTALLATION: 

The KD series diffusers are installed inside special plenum 

boxes, by suspension using fixing bridges. 

This solution allows a quick installation even at the end of 

work carried out on the building site. 

FINISH : 

The KDA and KDF diffusers are constructed from an 

aluminium body anodized or painted white RAL 9010 with a 

black painted deflection blade. 

The KDP diffusers are constructed from an aluminium body 

and a carbon steel panel painted RAL 9010 and a black painted 

deflector blade. 

Special finishes for the diffuser body can be made on requested. 

APPLICATIONS : 

The KD series diffusers are ideal in application i with a ceiling 

height between 3 and 6 meters like open space offices, 

commercial galleries hospital wards or hotel rooms. 

VERSIONS 

KDA : standard version for ventilation; 

KDF: version for supply and extraction with anti-dust 

filter, ideal for guaranteeing the cleaning of the air in 

recycle systems; 

KDP: version installed on steel panel, suitable for 

installation in modular counter ceilings, used for supply of 

air. 

U08 Diffusion-vers.14.00.xls U08-41

HIGH AIR FLOW 


KDA VERSION DIMENSIONS 

KDA 

SERIES 

AK Efficient section for diffuser L=1 m (m²) 

1 slot 2 slots 3 slots 4 slots 

Horizontal throw 0,01256 0,02553 0,03701 0,04853 

Vertical throw 0,02106 0,04169 0,06262 0,08215 


HIGH AIR FLOW 


KDF VERSION DIMENSIONS 

KDF 

SERIES 

Rounded edge 

Straight edge 

AK Efficient section for diffuser L=1 m (m²) 2 slots F= 66,5 

2 slots 3 slots 4 slots 3 slots F= 

104,5 

Horizontal throw 0,02553 0,03701 0,04853 4 slots F= 144,5 

Vertical throw 0,04169 0,06262 0,08215 


HIGH AIR FLOW 


AIR THROW ADJUSTMENT 

KD 

SERIES 

Horizontal throw configuration 

The throw moves along the ceiling 

It guarantees the complete absence of air currents 

both in heating and cooling. 

Vertical throw configuration 

The air throw penetrates directly into the room 

Prevents the formation of layers of hot air when 

used for heating. 

CHOICE OF AIR THROW ORIENTATION : 

The horizontal throw represents the most common use of this 

type of diffuser, both for heating and cooling. The throw 

follows the ceiling and expands horizontally within the room. 

This generates a vertical recall of air present in the room, 

guaranteeing a perfect mixture of air without the presence of 

air currents within the occupied area. 

The vertical throw, used when heating, allows to send the hot 

air directly within the occupied area to hinder the formation 

of layers of hot air in higher parts of the room caused by the 

lesser density. 

The change of orientation of the air throw is obtained by 

rotating the deflector blade from an inclined position to a 

horizontal one, and vice versa. 

The blade is rotated from within the diffuser, with the use of 

a leaver at both extremities of the air slot. 


HIGH AIR FLOW 


AIR THROW ADJUSTMENTS 

KD 

SERIES 

The adjustment of the air throw from horizontal to vertical position is made using the special lever supplied 

following the sequence here shown 

From horizontal to vertical throw 

From vertical to horizontal throw 


HIGH AIR FLOW 


PLENUM FOR KDA 

KDA 

SERIES 

AHU SEIRES OVERALL DIMENSIONS 

L ≤ 1200 mm 1201≤ L ≤ 1500 mm 1501≤ L ≤ 2000 mm 

Slots 

H S connector ØD connector ØD connector ØD 

mm mm qty mm qty mm qty 

mm 

1 200 52 1 123 ABS(*) 1 155 ABS (*) 1 155 ABS (*) 

2 250 91 1 155 ABS (*) 1 195 ABS (*) 2 155 ABS (*) 

3 300 130 1 195 ABS (*) 2 155 ABS (*) 2 195 ABS (*) 

4 300 172 1 195 ABS (*) 2 195 ABS (*) 2 195 ABS (*) 

FANCOIL SERIES OVERALL DIMENSIONS 

L ≤ 800 mm 

800 < L ≤ 1250 mm 

Slots 

H S connector ØD connector ØD 

mm mm qty 

mm 

qty 

mm 

1 250 52 1 155 ABS (*) 1 155 ABS (*) 

2 350 91 1 195 ABS (*) 1 195 ABS (*) 

3 350 130 1 195 ABS (*) 2 195 ABS (*) 

4 350 172 1 195 ABS (*) 2 195 ABS (*) 

(*) 

Steel on request 

The fancoil series plenums are built up to 1250mm in length and allow to reduce values of pressure losses almost to a 

minimum therefore allowing KDA series diffusers to be used in applications with low noise levels. 


HIGH AIR FLOW 


PLENUM FOR KDA 

FITTING 

KDA 

SERIES 

To secure the KDA diffusers to the AHU and FANCOIL 

series plenums, strictly follow the fixing procedure shown 

below. 

Position the deflectors for vertical throw and 

hook the fixing bridges provided 

Insert the diffuser inside the plenum and 

place the bridges on the two blades 

inside the plenum 

Tighten the bridge screws by inserting 

the screwdriver within the diffuser, then 

position the deflectors as required. 


HIGH AIR FLOW 


PLENUM FOR KDF KDP 

KDF 

KDP 

SERIES 

FILTER HOLDER SERIES OVERALL DIMENSIONS 

L ≤ 1200 mm 

Slots 

H S connection ØD 

mm mm qty 

mm 

2 250 98 1 

155 ABS (*) 

3 300 137 1 195 ABS (*) 

4 300 177 1 195 ABS (*) 

(*) Steel on request 

The Filter Holder series plenums are built up to 1200mm in length 

and can be used both for the KDP, without panel, and KDP, with 

panel, diffusers. 


HIGH AIR FLOW 


PLENUM FOR KDF KDP 

FITTING 

KDF 

KDP 

SERIES 

To secure the KDF and KDP diffusers, strictly follow the 

fitting procedure shown below. 

Open the diffuser by lifting and rotating the 

central section. 

Insert the diffuser inside the plenum 

until the slots in the frame are aligned 

with the holes in the end caps of the 

plenum. Fix the diffuser using the 

screws supplied in the hole on the 

plenum end caps. 

Insert the supplied filter blocking clamps in the 

grooves, insert the filter and fix in place with the 

supplied screws. 

Reclose the diffuser and, if necessary, adjust the 

deflectors in the chosen position. 


HIGH AIR FLOW 


ONE SLOT 

PERFORMANCE 

KD 

SERIES 

Data obtained from CFD mathematical model in a 

virtual test room, operating in isothermic 

conditions in accordance with international 

standard: 

ISO 5219 1984: Air distribution and air diffusion - 

Laboratory. Aerodynamic testing and rating of air terminal 

devices. 

A (m) distance between diffusers 

Vo (m/s) speed at limit of occupied area 

L (m) horizontal distance in meters from the centre of 

diffuser 

VL (m/s) maximum speed in air stream at distance L 

For Hr different to 3m, use the multiplier factor KF: 

Vo (h) = Vo x Kf 

Fluid dynamic analysis carried out by 


HIGH AIR FLOW 


ONE SLOT 

PERFORMANCE 

KD 

SERIES 


virtual test room operating in heating conditions with 

ΔT=10°C in accordance with international standard: 

ISO 5219 1984: Air distribution and air diffusion - Laboratory. 

Aerodynamic testing and rating of air terminal devices. 

H1 (m) vertical distance in meters from the centre of the 

diffuser where the inversion of the air flow occurs. 

Data measured in reverberating room in accordance 

with the following international standards: 

ISO 3741 1999: Acoustic - determination of sound power levels 

of noise sources using sound pressure - Precision methods for 

reverberation rooms 


of noise from air-terminal devices ; air terminal units; dampers 

and valves by measurement in a reverberation room. 

With AHU plenum or Filterholder plenum 

The data shown does not consider the attenuation given 

by the place of installation. This attenuation is normally 

included between 6 and 10dBa and is determined by the 

dimensions of the room, its shape and the arrangements 

of the furnishings within it. 

With FANCOIL plenum 


HIGH AIR FLOW 


ONE SLOT 

PERFORMANCE 

KD 

SERIES 




standard: 



devices. 

With AHU series plenum 

With FANCOIL series plenum 


HIGH AIR FLOW 


TWO SLOTS 

PERFORMANCE 

KD 

SERIES 




standard: 



devices. 


Vo (m/s) speed at external limit of occupied area 

L (m) horizontal distance in meters from centre of the 







HIGH AIR FLOW 


TWO SLOTS 

PERFORMANCE 

KD 

SERIES 
























HIGH AIR FLOW 


TWO SLOTS 

PERFORMANCE 

KD 

SERIES 




standard: 



devices. 



Including the filter pressure loss 


HIGH AIR FLOW 


THREE SLOTS 

PERFORMANCE 

KD 

SERIES 




standard: 



devices. 










HIGH AIR FLOW 


THREE SLOTS 

PERFORMANCE 

KD 

SERIES 
























HIGH AIR FLOW 


THREE SLOTS 

PERFORMANCE 

KD 

SERIES 




standard: 



devices. 





HIGH AIR FLOW 


FOUR SLOTS 

PERFORMANCE 

KD 

SERIES 




standard: 



devices. 










HIGH AIR FLOW 


FOUR SLOTS 

PERFORMANCE 

KD 

SERIES 




ISO 5219 1984: Air distribution and air diffusion -Laboratory. 









ISO 5135 1997: Acoustic - determination i of sound power levels l 

of noise from air-terminal devices ; air terminal units; dampers and 

valves by measurement in a reverberation room. 









HIGH AIR FLOW 


FOUR SLOTS 

PERFORMANCE 

KD 

SERIES 




standard: 



devices. 





HIGH AIR FLOW 


CODES 

KD 

SERIES 

KDA High air flow linear slot diffuser 

A 

R 

0 

1 

Anodized diffuser profile 

RAL 9010 diffuser profile 

Spring fixing 

Fixing with bridges 

number of slots (from 1 up to 8) 

A 

B 

R 

Z 

anodized deflector 

black deflector 

RAL 9010 deflector 

without deflector 

Length 

KDA A 0 2 B 900 

Standard lengths: 

800mm 

1000mm 

1500mm 

2000mm 

KDF Filter holder slot diffuser 

A 

R 

V 

S 

Anodized diffuser profile 


Straight edge 

Rounded edge 

number of slots (from 2 up to 4)* 

A 

B 

R 

Z 

anodized deflector 




Length (max 1200) 

KDF A V 2 B 900 

*not possible for 1 slot 

Standard lengths: 600mm * not possible with more than 4 slots 

900mm 

1200mm 

Different lengths available at order stage 

Filter readily available only for standard lengths 


HIGH AIR FLOW 


CODES 

KD 

SERIES 

KDP Filter holder linear diffuser with panel 

R 



R 

B 

Z 




Length of diffuser 

KDP R 2 B 900 

Standard lengths: 

600mm 

900mm 

1000mm 

Standard panel 1200x300mm 

Different lengths and panels agreeable at order stage 

Filter readily available only for standard lengths 

*not possible for 1 slot 

* not possible with more than 4 slots 

FP3 

G2 filter 3mm thickness 

Length 

Width 

FP3 870 105 

Filter length 

Filter width 

EXAMPLE 

= 

= 

= 

= 

Diffuser length -30mm 

70mm 2 slot diffuser 



filter for KDP diffuser, 3 slots L=900 

Length: 900-30= 870 

Width: 105mm 

Code: 

FP3870105 


HIGH AIR FLOW 


CODES 

KD 

SERIES 

P9 

1 

2 

I 

C 

N 

Plenum for linear diffuser KDA 

UTA series 

FANCOIL series 

External insulation 

Internal insulation 

No insulation 

number of slots (from 1 up to 8) 

Length 

N 

D 

M 

F 

Connectors in ABS without damper 

Connectors in ABS with flat 

Connectors in steel without 

Connectors in steel with perforated damper 

P9 1 

I 3 600 D 

P93 

I 

C 

N 

Plenum for linear diffuser KDF and KDP 

External insulation 

Internal insulation 

No insulation 


Length (max 1200) 

N 

D 

M 

F 

Connectors in ABS without damper 

Connectors in ABS with flat damper 

Connectors in steel without damper 

Connectors in steel with perforated damper 

P93 I 3 600 D 

*not possible with 1 slot 

* not possible with more than 4 slots

High air flow linear slot diffuser - Mp3

Create successful ePaper yourself

Delete template?

Save as template?