Fireset 3 fire door chain hoist assembly allows for more frequent, regular testing of chain-operated fire doors. Conforming to NFPA 80 regulations, the product's construction allows for the door to drop during testing without releasing spring tension.
Fireset 3 fire door chain hoist assembly allows for more frequent, regular testing of chain-operated fire doors. Conforming to NFPA 80 regulations, the product’s construction allows for the door to drop during testing without releasing spring tension. Using the device, one person can easily drop test and reset the door within minutes.
Atlas Door, Div. of Clopay Building Products Co., Inc.; www.clopaydoor.com
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