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difference between d and al
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RELATED FAQS
Question
Answer
What is the difference between the standard lever inserts for the pre-2002 AL and the old D Lever?
Resolution:
The old D-Series Lever used a standard lever insert similar to the pre-2002 AL-Series standard lever insert. The old D Lever insert was smaller than the AL and the two were not comp...:
What grade is the AL lock?
Resolution:
The AL lock is a Grade 2 lock ANSI/BHMA Certified A156.2-2003, Series 4000, Grade 2, UL Listed for 3-hour fire door.:
What is the difference between the E option and the E996 option for 98/99 series rim devices?
Resolution:
We used to offer a E99 rim device where there was a solenoid to lock or unlock the lever or thumbpiece trim on the back side of the center case of the 98/99 device. When we created the E996L trim ...:
What is the difference between the Senior Swing 9540 and 9530 Series power operators?
Resolution:
The 9542 is the single door operator that mounts on the "push side" of the opening with a REG arm. The 9531 is the single door operator that mounts on the "pull side" of the opening with a STD arm...:
What is the difference between Von Duprin LX and/or RX switches and the Signal Switch SS option?
Resolution:
The RX monitors the push bar while the LX monitors the latch bolt of the exit device. A SS device has an LX and a key cylinder switch plus an emergency push bar signage.:
What is the difference between LR and PL latches on Von Duprin 8827 exit devices?
Resolution:
ES (electric strike) latch is only used with the 8827 less bottom rod on a non fire rated exit device with a 6111 electric strike.:
What is the difference between Von Duprin 98/9947 and 98/9948 concealed vertical rod devices?
Resolution:
They both use Template # 10320_c:
What are the visual differences on a F-Series handreader main boards that have battery backup and main boards that do not have battery backup?
Resolution:
See Board Differences Battery Backup Circuitry for a picture of the visual differences between a F-Series biometric handreader with a main board that has the battery backup ci...: