Koolair Fsd series User manual

series

Fire and smoke dampers

UL Approval

FSD-FLD

www.koolair.com

Fire and smoke dampers UL Approval

FSD-B-U / FSD-A-U and FLD-S-U / FLD-S-UD

CONTENTS

Description FSD-B-U / FSD-A-U 2

Construction details FSD-B-U / FSD-A-U 3

Dimensions FSD-B-U / FSD-A-U 4

Operation FSD-B-U / FSD-A-U 5

Description FLD-S-U / FLD-S-UD 6

Construction details FLD-S-U / FLD-S-UD 7

Dimensions FLD-S-U / FLD-S-UD 7

Operation FLD-S-U / FLD-S-UD 8

Periodic inspection FLD-S-U / FLD-S-UD 9

Technical data 10

Series FSD-FLD 1

FSD-A-U

FSD-B-U / FSD-A-U Fire and smoke dampers.

UL Approval

Description

The FSD-B-U and FSD-A-U models are 3V type multi-blade

re and smoke dampers approved according to UL standards

(UL555 and UL555S).

Fire dampers close automatically to prevent re and smoke from

spreading to adjacent re compartments through HVAC

ventilation ductwork.

The dampers are approved to withstand re conditions for 90

minutes according to UL555 standard. The FSD-B-U model

achieves Class 1 leakage level according to UL555S at a

temperature of 177 °C. The FSD-A-U model achieves Class 3

leakage level according to UL555S at a temperature of 177 °C.

The FSD-B-U model re damper incorporates

elastomeric airtight seals along the edges of the closing blades.

The casings or frames of the dampers are manufactured with

reinforced corners. Where height H <425 mm, low prole lines

are used at the top and bottom of the frame. The blades are

reinforced with 3 lengthways structural sections called “Vee’s” to

provide them with greater rigidity and resistance.

Silicone sealant is applied to the joint between the frame and its

enclosure to prevent any air or smoke leakage.

An inspection hatch is required in the ductwork adjacent to the

damper to facilitate periodic inspection and maintenance.

The FSD-B-U / FSD-A-U models are installed vertically with the

blades in a horizontal position, regardless of the direction of the

horizontal air ow.

Series FSD-FLD

FSD-B-U / FSD-A-U Fire and smoke dampers.

UL Approval

Construction details:

Maximum levels of operation:

Design and manufacture details FSD-B-U / FSD-A-U dampers

Damper frame or casing material Galvanised steel

Damper frame or casing thickness 1.6 mm

Damper frame or casing prole type Omega prole – 123 mm thick

Closing blade material Galvanised steel

Closing blade thickness 1.6 mm

Closing blade type Type triple V

Sealing. Airtightness Integrated gasket in the casing or frame

Damper shaft bearings Bronze casing pressed into the casing or frame

Damper shaft material Sheet steel

Airtight seal in the interior of the damper Stainless steel - metal exible under compression

Airtight seals on blades Silicone (FSD-B-U model)

Thermal actuator + opening and

closing servomotor

Thermal actuator (thermoelectric fusible link) that operates at

temperatures above 74 ºC.

Electric servomotor 24V, with auxiliary changer (230 V option)

Damper exterior enclosure Minimum 432 mm, thickness 1 mm. Galvanised steel.

Levels of operation:

Description FSD-A-U/FSD-B-U models

UL 555S leak classication Class 1 (FSD-B-U) and Class 3 (FSD-A-U)

UL 555 re resistance classication 90 minutes (1.5 h)

Maximum velocity 10 m/s

Maximum pressure 1000 Pa

Series FSD-FLD 3

H / L 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800

150

300

450

600

750

900

1050

1200

H / L 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 1700 1800

150

300

450

600

750

900

1050

1200

FSD-B-U / FSD-A-U Fire and smoke dampers.

UL Approval

Dimensions:

FSD-A-U

FSD-B-U

MIN. 432 mm

Dimensions

Simple selection (L x H) Multiple selection (L x H)

152 x 203 mm (minimum dimension) 1828 x 1371 mm (maximum dimension)

914 x 1220 mm (maximum dimension)

Series FSD-FLD

FSD-B-U / FSD-A-U Fire and smoke dampers.

UL Approval

Operation:

The FSD-B-U and FSD-A-U models are designed to be fail-safe, allowing the dampers to automatically

return to the desired position in the event of a re and smoke.

The damper operates (closes) if the power supply of 24 V (optionally 230 V) to the servomotor is

interrupted, whether as a result of a system failure, a command from the control system or by the

thermoelectric fusible link when the temperature exceeds 74º C. The damper is open while power is

supplied.

The damper automatically resets (opens) when 24 V (optionally 230 V) is supplied to the servomotor. If the damper is

closed due to high temperatures, i.e. by the thermoelectric fusible link, it is manually reset by a button installed on the

damper.

Remote damper status indication (limit switch) is also available.

Installation:

The dampers are designed for the lowest possible pressure drop. The technical department deals with each order

individually and supplies the client with a blade width for the desired height and ensures that the dampers have the

greatest free area when open and, therefore, the lowest pressure drop. Blade width may therefore differ and can protrude

outside the damper frame on one or more sides, up to a maximum of 69 mm.

MÁX. 69 mm

123

FLOW RATE

EJE INTERCONEXIÓN LAMAS

MURO

CORTAFUEGO

DAMPER

ENCLOSURE

ACTUATOR

BEARING

SUPPORT

SHAFT

FRAME

BLADE

FIXING ANGLES EXPANSION AREA (MINIMUM

6 MM, MAXIMUM CONSULT

MOUNTING INSTRUCTIONS)

RESETTABLE

THERMAL

ACTUATOR +

OPENING AND

CLOSING

ACTUATOR

Series FSD-FLD 5

Fire dampers with fusible link, FLD-S-U /

FLD-S-UD. Approval UL

Description

The re dampers are approved to withstand re conditions for 90

minutes (1.5 hours) in accordance with UL555. They are 3V type

multi-blade operated by the melting of a fusible link calibrated to

74º C.

Fire dampers close automatically to prevent re from

spreading to adjacent re compartments through HVAC

ventilation ductwork.

The FLD-S-U model is re rated under static conditions.

The FLD-S-U model is re rated under dynamic conditions. It is

designed for system speeds of up to 10 m/s and pressure of up

to 1000 Pa.

The damper frame is constructed with reinforced corners.

Frame sizes under 425 mm high use low prole thin line frames.

The blades are reinforced with 3 “Vee’s” structurally designed

lengthways.

The FLD-S-U / FLD-S-UD models are installed vertically, with

the blades in a horizontal position, regardless of the direction of

the horizontal air ow.

FLD-S-U / FLD-S-UD

Fire damper with fusible link

FLD-S-U / FLD-S-UD

Fire damper with fusible link

Series FSD-FLD

H / L 150 200 300 400 500 600 700 800 900

150

300

450

600

750

900

Fire dampers with fusible link, FLD-S-U /

FLD-S-UD. Approval UL

Construction details:

Dimensions:

Construction details

Damper frame or casing material Galvanised steel

Damper frame or casing thickness 1.6 mm

Damper frame or casing prole type Omega prole – 123 mm thick

Closing blade material Galvanised steel

Closing blade thickness 1.6 mm

Closing blade type Type triple V

Sealing. Airtightness Integrated gasket in the casing or frame

Damper shaft bearings Bronze casing pressed into the casing or frame

Damper shaft material Sheet steel

Actuation temperature Fuse calibrated at 74 ºC

Damper exterior cover Minimum length 432 mm, galvanized steel, 1 mm thickr

Dimensions

Simple selection (L x H) Larger sizes require to be provided

as individual dampers for on-site

assembly.

300 x 150 mm (minimum dimension)

914 x 914 mm (maximum dimension)

FLD-S-U

FLOW

Series FSD-FLD 7

Operation:

Complete with thermal fusible link set at 74ºC.

They are designed to be fail-safe, allowing the dampers to close automatically when the temperature in the duct reaches

the fuse design temperature..

Fire dampers with fusible link, FLD-S-U /

FLD-S-UD. Approval UL

Installation:

The dampers are designed for the lowest possible pressure drop. The technical department deals with each order

individually and supplies the client with a blade width for the desired height and ensures that the dampers have the

greatest free area when open and, therefore, the lowest pressure drop.

Blade width may therefore differ and can protrude outside the damper frame on one or more sides,

up to a maximum of 69 mm.

MÁX. 69 mm

123

FLOW

RATE

BLADE

INTERCONNECTI

ON AXIS

FIREWALL

DAMPER

ENCLOSURE

FUSIBLE

LINK

BEARING

SUPPORT

EJE

FRAME

BLADE

FIXING ANGLES

EXPANSION AREA

(MINIMUM 6 MM, MAXIMUM

CONSULT MOUNTING

INSTRUCTIONS)

BEARING

EXTENSION

Series FSD-FLD

Fire dampers with fusible link, FLD-S-U /

FLD-S-UD. Approval UL

Periodic inspection, testing and maintenance

The basic inspection, testing and maintenance procedures are described below.

Inspection:

Regular inspection, testing and maintenance are essential to ensure that the re and smoke dampers in an installation

operate as intended. Inspection and maintenance should include periodic testing of all equipment, including dampers,

fans, operating devices, controls, etc. Standards such as NFPA 92A, NFPA 80, NFPA105 and local codes must be

consulted for guidance with respect to the intervals of damper inspection, testing, and maintenance. The intervals of

inspection, testing and maintenance vary widely depending on the system’s length of operation, the condition of the air

and other factors.

Maintenance:

• Check the electric servomotor and tighten the coupling if necessary.

• Check the damper blades and other parts as necessary.

• Lubricate the latch, bearings and other moving parts with a silicone lubricant. Petroleum-based products should not be

used as they may accumulate dust.

• Activate the damper using the electric servomotor.

• Check the blades to make sure they close and reopen completely.

• Check the damper to make sure it is perpendicular and the blade channel is not obstructed.

Test:

• Use a moderate heat source and heat the thermal disk inside the damper.

• Once the required temperature has been reached, the power supply to the servomotor will be switched off and the

motor spring will close the damper blades.

• The damper must be tested under normal air ow conditions.

Series FSD-FLD 9

150

400

500

1000

750

4500

1500

2000

3000

150

400

500

1000

750

4500

1500

2000

3000

0,01

0,10

1,00

110

)

eff

(m/s)

Q (m

/h)

1,040

0,200

0,540

100

1000

110

∆P (Pa)

eff

(m/s)

[dB(A)]

0,54

1,80

Fire damper FSD-B-U / FSD-A-U FLD-S-U /

FLD-S-UD. Technical data

Selection chart FSD-B-U / FSD-A-U FLD-S-U / FLD-S-UD

Selection example:

For the given duct dimensions and technical data, we select a 1200 x 200 mm FSD-B-U damper. We use the table on the

previous page to nd the following data:

AL = 0,24 m2 k

p = 1,8 kdB(A)= -2

The technical data to achieve a ow rate of 3500 m3/h is required.

Referring to the diagram above using this ow rate and the area o 0,24 m2, we obtain a Veff of 4 m/s. With this veocity

and taking into account the value of kp, we obtain:

Differential pressure: 30 Pa

Sound pressure level: 45 dB(A)

Applying LwA- dB(A) = 45+ (-2) = 43 dB(A)

Series FSD-FLD

L \ H 200 300 400 500 600 700 800 900 914

150

0,030 0,045 0,060 0,075 0,090 0,105 0,120 0,135 0,137 AL(m2)

1,80 1,80 1,80 1,80 1,80 1,80 1,80 1,80 1,80 kp

-6 -5 -5 -4 -4 -4 -3 -3 -3 kdB(A)

200

0,040 0,060 0,080 0,100 0,120 0,140 0,160 0,180 0,183 AL(m2)

1,80 1,80 1,80 1,80 1,80 1,80 1,80 1,80 1,80 kp

-6 -5 -4 -4 -3 -3 -3 -2 -2 kdB(A)

300

0,060 0,090 0,120 0,150 0,180 0,210 0,240 0,270 0,274 AL(m2)

1,80 1,80 1,80 1,80 1,80 1,80 1,80 1,07 1,06 kp

-5 -4 -3 -3 -2 -2 -2 -2 -2 kdB(A)

400

0,080 0,120 0,160 0,200 0,240 0,280 0,320 0,360 0,366 AL(m2)

1,80 1,80 1,80 1,80 1,80 1,04 0,94 0,84 0,82 kp

-4 -3 -3 -2 -2 -1 -1 -1 -1 kdB(A)

500

0,100 0,150 0,200 0,250 0,300 0,350 0,400 0,450 0,457 AL(m2)

1,80 1,80 1,80 1,12 0,99 0,86 0,74 0,64 0,62 kp

-4 -3 -2 -2 -1 -1 -1 0 0 kdB(A)

600

0,120 0,180 0,240 0,300 0,360 0,420 0,480 0,540 0,548 AL(m2)

1,80 1,80 1,80 0,99 0,84 0,70 0,58 0,47 0,46 kp

-3 -2 -2 -1 -1 -1 0 0 0 kdB(A)

700

0,140 0,210 0,280 0,350 0,420 0,490 0,560 0,630 0,640 AL(m2)

1,80 1,80 1,04 0,86 0,70 0,56 0,44 0,33 0,32 kp

-3 -2 -1 -1 -1 0 0 0 0 kdB(A)

800

0,160 0,240 0,320 0,400 0,480 0,560 0,640 0,720 0,731 AL(m2)

1,80 1,80 0,94 0,74 0,58 0,44 0,32 0,23 0,22 kp

-3 -2 -1 -1 0 0 0 1 1 kdB(A)

900

0,180 0,270 0,360 0,450 0,540 0,630 0,720 0,810 0,823 AL(m2)

1,80 1,07 0,84 0,64 0,47 0,33 0,23 0,20 0,20 kp

-2 -2 -1 0 0 0 1 1 1 kdB(A)

914

0,183 0,274 0,366 0,457 0,548 0,640 0,731 0,823 0,835 AL(m2)

1,80 1,06 0,82 0,62 0,46 0,32 0,22 0,20 0,20 kp

-2 -2 -1 0 0 0 1 1 1 kdB(A)

Table FSD-A-U / FSD-B-U/ FLD-S-U / FLD-S-UD

Key:

L width in mm

H height in mm

AL free area in m2

veff effective velocity in relation to the free surface in m/s

ΔP pressure loss in Pa

LwA sound pressure level in dB(A)

kp pressure loss correction factor

kdB(A) sound-level correction factor

Fire damper FSD-B-U / FSD-A-U FLD-S-U /

FLD-S-UD. Technical data

Series FSD-FLD 11

H \ L 200 300 400 500 600 700 800 900 914

1000

0,20 0,30 0,40 0,50 0,60 0,70 0,80 0,90 0,91 AL(m2)

1,80 0,99 0,74 0,54 0,37 0,25 0,20 0,20 0,20 kp

-2 -1 -1 0 0 1 1 1 1 kdB(A)

1100

0,22 0,33 0,44 0,55 0,66 0,77 0,88 0,99 1,01 AL(m2)

1,80 0,91 0,66 0,45 0,29 0,20 0,20 0,20 0,20 kp

-2 -1 0 0 0 1 1 1 1 kdB(A)

1200

0,24 0,36 0,48 0,60 0,72 0,84 0,96 1,08 1,10 AL(m2)

1,80 0,84 0,58 0,37 0,23 0,20 0,20 0,20 0,20 kp

-2 -1 0 0 1 1 1 1 2 kdB(A)

1300

0,26 0,39 0,52 0,65 0,78 0,91 1,04 1,17 1,19 AL(m2)

1,09 0,77 0,50 0,31 0,20 0,20 0,20 0,20 0,20 kp

-2 -1 -1 0 0 1 1 1 1 kdB(A)

1371

0,274 0,411 0,548 0,686 0,823 0,960 1,097 1,234 1,253 AL(m2)

1,06 0,72 0,46 0,26 0,20 0,20 0,20 0,20 0,20 kp

-2 -1 -1 0 0 1 1 1 1 kdB(A)

Table FSD-A-U / FSD-B-U

Fire dampers FSD-B-U / FSD-A-U FLD-S-U /

FLD-S-UD. Technical data

Series FSD-FLD

L \ H 1000 1100 1200 1300 1400 1500 1600 1700 1800 1828

150

0,150 0,165 0,180 0,195 0,210 0,225 0,240 0,255 0,270 0,274 AL(m2)

1,80 1,80 1,80 1,80 1,80 1,80 1,80 1,11 1,07 1,06 kp

-3 -3 -2 -2 -2 -2 -2 -2 -2 -2 kdB(A)

200

0,200 0,220 0,240 0,260 0,280 0,300 0,320 0,340 0,360 0,366 AL(m2)

1,80 1,80 1,80 1,09 1,04 0,99 0,94 0,88 0,84 0,82 kp

-2 -2 -2 -2 -1 -1 -1 -1 -1 -1 kdB(A)

300

0,300 0,330 0,360 0,390 0,420 0,450 0,480 0,510 0,540 0,548 AL(m2)

0,99 0,91 0,84 0,77 0,70 0,64 0,58 0,52 0,47 0,46 kp

-1 -1 -1 -1 -1 0 0 0 0 0 kdB(A)

400

0,400 0,440 0,480 0,520 0,560 0,600 0,640 0,680 0,720 0,731 AL(m2)

0,74 0,66 0,58 0,50 0,44 0,37 0,32 0,27 0,23 0,22 kp

-1000000011kdB(A)

500

0,500 0,550 0,600 0,650 0,700 0,750 0,800 0,850 0,900 0,914 AL(m2)

0,54 0,45 0,37 0,31 0,25 0,20 0,20 0,20 0,20 0,20 kp

0000111111kdB(A)

600

0,600 0,660 0,720 0,780 0,840 0,900 0,960 1,020 1,080 1,097 AL(m2)

0,37 0,29 0,23 0,20 0,20 0,20 0,20 0,20 0,20 0,20 kp

0011111112kdB(A)

700

0,700 0,770 0,840 0,910 0,980 1,050 1,120 1,190 1,260 1,280 AL(m2)

0,25 0,20 0,20 0,20 0,20 0,20 0,20 0,20 0,20 0,20 kp

1111112222kdB(A)

800

0,800 0,880 0,960 1,040 1,120 1,200 1,280 1,360 1,440 1,462 AL(m2)