CaryaireUL listed fire and smoke device

FSD-A-U

Model FSD-A-U is a UL555 and UL555S classified multi-blade combination fire and smoke damper with 3V style blades, designed to close the HVAC duct opening in fire and smoke situations.

UL555 & UL555S classifiedClassification
1.5 hoursFire rating
Class III Leakage Rated under UL555S at Elevated Temp of 350° FLeakage
Overview

About FSD-A-U

It is UL555 classified to withstand fire conditions for 1.5 hours and is Class III leakage rated under UL555S at an elevated temperature of 350° F. It can be installed vertically, with blades running horizontally and airflow in either direction.

Technical data

Specifications

Classification
UL555 & UL555S classified
Fire rating
1.5 hours
Leakage
Class III Leakage Rated under UL555S at Elevated Temp of 350° F

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