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FAQs

What is the maximum glass light size on a 90 min (1 1/2 hour) fire rated door?

Resolution: Standard listed wire glass: one (1) light with 100 in2 per door leaf max.Firelite or other appropriately listed glass:• FM maintains one (1) light with 100 in2 per door leaf max.• UL &...:

Can you hardwire a 2670 and not use the PT-790?

Resolution: The PT-790 is the pluggable power supply and is required if you want to hardwire the 2670 Guard X.:

What type of core will a lock with the cylinder suffix "J" accept?

Resolution: The full size interchangeable cores or FSIC from Schlage.:

What is the part number for a SFIC core from Falcon?

Resolution: Regular Core (suffix keyway to number) Description Uncombinated Combinated 6-Pin 7-Pin 6-...:

Can we have 9927-F LBR and 9975-F on a paired opening?

Resolution: This combination is not available. The 98/9927-LBR-F has only been UL tested as vertical by vertical combination on pairs of fire rated doors.:

What is the part number for the L9000 product thumbturn cylinder?

Resolution: Specify the correct handing for the cylinder thumbturn to match the handing of the door it is being installed in. NH = Non Handed (Default) RH = Right Hand LH = Left Hand :

Does the backset extension link work with a 2 3/8" latch or a 2 3/4" latch?

Resolution: A and AL product: Must use the 2 3/8" backset with the 41-005 extension linkD Knob and ND product: Must use the 2 3/4" backset with the 43-005 extension link:

What parts are needed to convert JD to BD on an ND lock?

Resolution: For ND Locks shipping prior to January 30, 2017:The springcage(s), lever, and core driver will need to be changed. Depending on the function the components below are required.Outside spring c...:

How does the L9071 operate?

Resolution: L9071 LV9071 (ANSI F32) Classroom Security Lock Latchbolt retracted by knob/lever from either side unless outside is locked by key from either side. Auxiliary latch deadlocks latchbolt when door...:

What is the L9080 by L283-263?

Resolution: L283-263 and L283-239 are obsolete part numbers that were used to specify "request to exit" on the L9000 and LV9000 locks. To specify RX on L9000 locks after January 2, 2017, specify the lette...: