Fire Door Fusible Link Location

Locate the third fusible link on the opposite side of the wall at a distance from the wall that will allow sufficient travel of the sash chain or cable to completely release the fire door. For example an ordinary fusible link rated at 165 degrees f has a maximum ambient temperature rating of 100 degrees f. Fusible link installation conventional 20 fusible link installation no spring release 22 fusible link assembly through wall conduit 23 section 10 hood fascia and covers 24 hood support 24 lintel brush 24 hood and fascia 25 covers 26 section 11 drop testing 28 section 12 torque specifications 29.

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Firestopping systems should be evaluated to ensure they will not impact the credited operation of the fusible link mechanism.

Fire door fusible link location.

Automatic closing of a fire door in a fire event should not be installed in sleeves. This arrangement allows the fire door to be released by a signal an open from a detector or fire alarm relay or a broken wire fail safe or by the melting of one of the fusible links. 4 7 4 2 unless otherwise acceptable to the ahj fusible link s shall be installed on both sides of the wall and interconnected so that the operation of any single fusible link causes the door to close. This ul approved product is constructed from terne plated steel and is available in 4 temperatures with a maximum load of 25 pounds.

If a fusible link. Principally the ifc has two concerns with the proposed language which was included via the tia. Fusible link assembly conventional fire door 26 fusible link assembly no spring release fire door 28 fusible link assembly through wall conduit 29 section 10 lintel seal 30 section 11 drop test 33 section 12 hood support installation 34 section 13 hood fascia and covers 36 hood and fascia 36 hood splice 37. The fusible link must be more than four inches from the the through.

Attach the fusible link near the ceiling straight out from wall hole. Please try again later. The size of the link and the load rating in pounds for the link. Another fire safe option cdf distributors ships to your business are fusible link louvers which can be added ventilation to a room or closet door which would otherwise be closed off or used on a mechanical closet to seal off the room in the event of a fire.

More about our ea fusible link. 4 7 4 3 where fusible link s are used one fusible link shall be located near the top of the opening and additional link s shall be located. The maximum ambient temperature rating for the link that is greater than the maximum ambient exposure temperature at the fire door. The model ea fusible link was specifically designed for curtain type fire dampers and underwriters laboratories listed fire doors.

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