SD add EL

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Answer
This is available.  You will need the SD center case kit, SD center case cover, and EL conversion kit.
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.
 A 1 1/4" cylinder with straight cam is required for the Von Duprin SD (Special Dogging) exit device option.
The cylinder cam must be inverted with the SD option to work properly.
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...
 HD-EL (Hex Dogging Electric Latch Retraction) solenoid and plunger can be replaced with standard EL solenoid and plunger on non fire rated exit devices, but this should not be used on a daily basi...
There is no conversion kit to add EL or ED to an existing 1690 or 1790 series device. All of the components are built into the device, since the device does not have a separate baseplate.&n...
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 option ...