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“ what is SD ”

RELATED FAQS

Resolution: SD is Special cylinder dogging in the center case of 98/99 rim and vertical rod non fire rated devices and is available with standard, EL, QEL, CX and ALK.:

How do I add the Special Dogging (SD) option to a 98/9927 vertical rod device?

Resolution: Special Dogging can be added but you will need a new center case assembly, cylinder dog housing, and center case cover. 050550, SD center case kit RHR and 050551, SD center case kit LHR. 112409...:

Is dogging available w/ EL option on 24 or 25 series devices?

Resolution: This option is not available as the solenoid is in the mechanism case where the dogging components would go. An HD-EL solenoid is not available, and Special Dogging(SD) is not an optio...:

Is the SD option available with Von Duprin QEL 98/99 exit devices?

Resolution: SD option is available and is also standard with Von Duprin 98/99 rim and vertical rod exit devices but not available with mortise device.:

Can you add SD and EL to a mechanical 99 series exit device?

Resolution: This is available. You will need the SD center case kit, SD center case cover, SD cylinder dog housing, and EL/QEL conversion kit.: