06 floor diffusers set

FLOOR DIFFUSERS CONTENTS

• FLD Floor Diffuser

• FLD-FP Floor Diffuser

CONTENTS

All stated specifications are updated at the printing date and subject to change without notice or obligation. The actual product might differ from pictures shown.

FLOOR DIFFUSERS

FLD Floor Diffusers

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Description

Materials• Diffuser core: Aluminum die casting.• Outer ring: Aluminum die casting.• Housing: 0.7mm thickness galvanized steel.• Basket: 0.7mm thickness galvanized steel.• Internal insulation: Fiber glass, 25mm, 36kg/m3.

Surface Finish• Natural anodized or powder coat.

Features• Used in raised floor air distribution systems.• Swirl air pattern provides high induction rates of room air.• Suitable for high ceiling air conditioning system.• Air volume can be controlled by the butterfly damper or inner basket.• Dust tray catches anything that might fall through the diffuser face and is removable for cleaning.• Aluminum die casting diffuser core provides high strength to withstand heavy load.• Internal insulation to attenuate noises and prevents condensation.• The FLD housing can be removed by simply rotating the housing and disengaging at the collar.• Hangers are provided for easy installation in FLD-PB.

Standard Sizes• 250ø (mm)

Standard Models• FLD-S: Straight opening floor diffuser with bucket.• FLD-S-PB: Straight opening floor diffuser with plenum box.• FLD-C: Curve opening floor diffuser with basket.• FLD-C-PB: Curve opening floor diffuser with plenum box.

ASLI FLD round floor diffusers are specially designed for use in raised floor air distribution systems, where the floor cavity is used as a pressurized supply air plenum. FLD produces a high velocity swirl air pattern with the guidance of guide vane in the basket. Maximum comfort level could be achieved by producing high induction rates of room air with the design of FLD. Aesthetically appealing FLD is assessable by removing the diffuser core to remove the dust in the dust tray.

Diffuser Core

Diffuser Outer Ring

Hanger

Housing

Collar

Butterfly Damper

FLD-PB Isometrie View

Diffuser Core

Outer Ring

Basket

FLD Isometrie View

FLD-S

FLD-C

Internal Insulation ( Flbreglass)

FLD page 1 of 4

FLOOR DIFFUSERS

FLD Floor Diffusers


n FLD Physical Dimension Unit:mm

• Collar inlet dimensions are according to 200mm flexible duct

FLD Top View FLD Side View

FLD-PB Top View FLD-PB Side View

Q35

P130

M230

L112

K252

J66

F264

E71

D175

C340

B340

A297

N250

FLD page 2 of 4

100% Open 50% Open

• The basket in FLD serves as a guide vane, volume control damper and duct tray

Remove housing of FLD-PB by rotating and disengaging it at the collar

Rotate Housing Pull Out

FLOOR DIFFUSERS

FLD Floor Diffusers


• The guide vane in the basket creates a swirl air pattern, hence increases induction ratio. Dust on the basket can be removed by lifting up the diffuser core of FLD. Air volume can be adjusted by rotating the inner basket to control the opening of the basket.

Diffuser Core

Basket

Outer Ring

FLD page 3 of 4

Diffuser Face Floor

Hanger

Nut

Threaded Rod

Dust Tray

Housing

Installation diagram of FLD-PB

Dust on the dust tray can be removed bylifting up the diffuser core of the FLD-PB.

FLOOR DIFFUSERS

FLD Floor Diffusers


• Terminal velocities are based on 0.5m/s and 0.25m/s respectively.• Throw is based on 6˚ Celsius difference of supply air and room air temperature.• NC value is based on room absorption of 10dB, re 10-12 watts.• Dash (-) in space indicates NC value less than 15.

• Terminal velocities are based on 0.5m/s and 0.25m/s respectively.• Throw is based on 6˚ Celsius difference of supply air and room air temperature.• NC value is based on room absorption of 10dB, re 10-12 watts.• Dash (-) in space indicates NC value less than 15.

n FLD Order Code Unit:mm

Example: FLD-S-A-250

Floor Diffuser

Raised Floor

Floor Diffuser Raised Floor

Butterfly Damper

Supply Air DuctFlexible Duct

Raised floor system with FLD

Raised floor system with FLD-PB

Model Size (mm)FLD-S, FLD-S-PB, FLD-C, FLD-C-PB

MaterialAluminum (A) 250

Basket Air Flow

Air Flow

n FLD-S Air Flow Performance DataAir Flow Rate (CMH)

Plenum Pressure (mmAq)Vertical Projection (m)Horizontal Spread (m)

NC

510.3

0.2 - 0.40.3 - 0.5

-

980.5

0.3 - 0.60.3 - 0.6

-

850.7

0.6 -0.90.6 - 0.8

-

1021.0

0.8 - 1.10.9 - 1.3

-

1191.3

1.0 - 1.3 1.2 - 1.7

-

1361.6

1.3 - 1.51.3 - 1.8

-

1532.0

1.4 - 1.61.2 - 1.8

-

1702.4

1.6 - 1.81.2 - 1.7

15

1872.7

1.7 - 1.91.1 - 1.7

18

2043.2

1.8 - 2.0 1.1 - 1.7

20

n FLD-C Air Flow Performance DataAir Flow Rate (CMH)

Plenum Pressure (mmAq)Vertical Projection (m)Horizontal Spread (m)

NC

610.3

0.2 - 0.40.4 - 0.6

-

820.5

0.4 - 0.70.4 - 0.7

-

1020.7

0.7 - 1.00.7 - 1.0

-

1221.0

1.0 - 1.31.1 - 1.5

-

1431.3

1.3 - 1.61.5 - 2.0

-

1631.6

1.5 - 1.81.5 - 2.1

-

1842.0

1.7 - 2.01.4 - 2.1

-

2042.4

1.9 - 2.11.4 - 2.1

15

2242.7

2.0 - 2.31.4 - 2.1

18

2453.2

2.1 - 2.41.4 - 2.1

20

FLD page 4 of 4

FLOOR DIFFUSERS

FLD-FP Floor Diffusers

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Description

Materials• Diffuser core: Aluminum die casting.• Outer ring: Aluminum die casting.• Housing: 0.7mm thickness galvanized steel.• Insulation: Fiber glass, 25mm, 36kg/m3.

Surface Finish• Natural anodized or powder coat.

Features• Used in raised floor air distribution systems. • Swirl air pattern provides high induction rates of room air.• Suitable for high ceiling air conditioning system.• Dust tray catches anything that might fall through the diffuser face and is. removable for cleaning.• Aluminum die casting diffuser core provides high strength to withstand heavy load.• Remote control via infrared.• 3 fan speeds (3 air flow rates).• Fan speed controlled by the difference between temperature set point and supply temperature.• Fan speed can be override at the remote controller.• Static pressure regains as fan is running.• Internal insulation to attenuate noises and prevents condensation.• The FLD-FP housing can be removed by simply rotating the housing and disengaging it at the collar.• Hangers are provided for easy installation.• Vibration free performance.• Mesh at the air inlet under FLD-FP prevents unwanted object from passing through.

Standard Sizes• 250ø (mm)

Standard Models• FLD-S-FP: Fan powered straight opening floor diffuser. • FLD-C-FP: Fan powered curve opening floor diffuser.

ASLI FLD-FP round fan powered floor diffusers are specially designed for use in raised floor air distribution systems, where the floor cavity is used as a pressurized supply air plenum. Maximum comfort level could be achieved by producing high induction rates of room air with the design of FLD-FP. Aesthetically appealing FLD-FP is assessable by removing the diffuser core to remove the dust in the dust tray. FLD-FP comes with 3-speed control centrifugal fan by remote controller with infrared features. Temperature set point can be set at the remote controller and the centrifugal fan will run according to the temperature set point with 3 speeds.

FLD-FP Top View

FLD-S-FP

FLD-C-FP

FLD-FP Isometric View

FLD-FP page 1 of 4

FLOOR DIFFUSERS



n FLD-FP Physical Dimension Unit:mm

Control Box

Diffuser Core

Diffuser Outer Ring

Hanger

Housing

Internal Insulation (fiberglass)

Dust Tray

Fan Base Plate

Centrifugal Fan

Support Tube

Mesh

FLD-FP Top View FLD-FP Side View

FLD-FP Exploded View

N250

A297

B340

C340

D175

E71

F264

G120

H340

I142

FLD-FP page 2 of 4

FLOOR DIFFUSERS



n FLD-S-FP Air Flow Performance Data n FLD-C-FP Air Flow Performance Data

n FLD-FP Installation

Fan SpeedAir Flow Rate (CMH)

Vertical Projection (m) Horizontal Spread (m)

NC

Low140

1.3 - 1.51.3 - 1.8

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Medium180

1.7 - 1.91.4 - 1.9

28

High220

1.9 - 2.11.5 - 2.0

33

• Terminal velocities are based on 0.5m/s and 0.25m/s respectively.• Air flow rate of 3 speeds can be mofified by changing capacitor with difference capacitance.• Air flow rates are measured with natural air intake without pressurization.• Throw is based on 6˚ Celsius difference of supply air and room air temperature.• NC value is based on room absorption of 10dB, re 10-12 watts.

Remove housing of FLD-PB by rotating and disengaging it at the collar

Rotate Housing Pull Out

Diffuser CoreFloor

HangerNut

Thread Rod

Housing

Dust Tray

Centrifugal Fan

Mesh

Installation of FLD-FP under the floor - Side view of FLD-FP with transparent housing

FLD-FP page 3 of 4

Fan SpeedAir Flow Rate (CMH)

Vertical Projection (m) Horizontal Spread (m)

NC

Low168

1.6 - 1.81.6 - 2.2

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Medium216

2.0 - 2.31.7 - 2.3

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High264

2.3 - 2.51.8 - 2.4

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FLOOR DIFFUSERS



Fan Powered Floor Diffuser Raised Floor

Fan Motor

Air Flow

n FLD-FP Order Code Unit:mm

MaterialAluminum (A)

Fan PoweredFP

ModelFLD-S, FLD-C

Size (mm)250

Example: FLD-S-A-FP-250

Dust on the dust tray can be removed by lifting up the diffuser core of the FLD-FP

Raised floor system with FLD-FP

FLD-FP page 4 of 4

06 floor diffusers set

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