FSD-FLD Fire and smoke dampers UL Approval

Series FSD-FLD 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

Series FSD-FLD Description The FSD-B-U and FSD-A-U models are 3V type multi-blade fire and smoke dampers approved according to UL standards (UL555 and UL555S). Fire dampers close automatically to prevent fire and smoke from spreading to adjacent fire compartments through HVAC ventilation ductwork. The dampers are approved to withstand fire 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...

Series FSD-FLD

Series FSD-FLD

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 fire 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...

Series FSD-FLD FLD-S-U / FLD-S-UD Fire damper with fusible link V_'_) Description The fire dampers are approved to withstand fire 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 74° C. Fire dampers close automatically to prevent fire from spreading to adjacent fire compartments through HVAC ventilation ductwork. The FLD-S-U model is fire rated under static conditions. The FLD-S-U model is fire rated under dynamic conditions. It is designed for system speeds of up to 10 m/s and pressure of up to...

Series FSD-FLD

Series FSD-FLD Fire dampers with fusible link, FLD-S-U / FLD-S-UD. Approval UL 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.. 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...

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. Regular inspection, testing and maintenance are essential to ensure that the fire 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...

Series FSD-FLD 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 1000 kp 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 find the following data: AL = 0,24 m2 kp = 1,8 kdB(A)= -2 The technical data to achieve a flow rate of 3500 m3/h is required. Referring to the diagram above using this flow 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...

Series FSD-FLD width in mm height in mm free area in m2 effective velocity in relation to the free surface in m/s pressure loss in Pa sound pressure level in dB(A) pressure loss correction factor sound-level correction factor

Series FSD-FLD

Series FSD-FLD

Series FSD-FLD THIS CATALOG IS INTELLECTUAL PROPERTY. The partial or total reproduction of its contents is forbidden without the express and authoritative authorisation of KOOLAIR, S.A. CEN-FSD-FLD-1117-00

KOOLAIR, S.A. Calle Urano, 26 Poligono industrial nº 2 – La Fuensanta 28936 Móstoles - Madrid - (España) Tel: +34 91 645 00 33 Fax: +34 91 645 69 62 e-mail: [email protected]