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Can the Von Duprin Chexit device be changed to ALK exit alarm?
The Chexit device has a different base plate and center case than the ALK.  The Chexit device would need to be replaced with an ALK device.
Why is the Von Duprin exit alarm ALK going into alarm on it's own?
The following may cause the ALK to go into alarm: Make sure red and blue wires on the RX switch are connected to the exit alarm ALK terminal block and yellow wire is taped off. Check the red an...
The Von Duprin 98 or 99 ALK kit will not sound the horn
Followings are the reason for 98/99 exit alarm ALK not sound when push bar is activated. Make sure key switch on exit alarm ALK is turned on, wait for 20 seconds before you activating the pushba...
Does a Von Duprin ALK kit come with an RX switch?
ALK kit comes with standard RX switch. It can be ordered without the RX switch or with LX switch as an option.
What cylinder is used in the Falcon 24/25 exit alarm kit?
The Exit Alarm takes a 1 1/8" Mortise cylinder with a straight cam. See first page of Exit Alarm inst below. Exit Alarm inst
Is there an Exit Alarm Retrofit Kit (EAK) for the 19 series?
These kits for the 19 Series were discontinued June 11th, 2012 when the updated alarm kit for the 24/25 series was released.   Prior to discontinuation, it was  o...
Alk not power up - using 9V battery
There are three main failures with an ALK.  Problems are usually caused by a bad power source(battery), bad RX/LX Switch or a bad circuit board.  Try installing a new battery and wai...
Why would an exit alarm ALK go into alarm and shut off after about 10 seconds?
If the spring on the Von Duprin exit alarm ALK board is not located correctly as shown on the instructions, then the vibration from the horn allows the cylinder to turn and shut the exit alarm ALK ...
What could cause the Von Duprin exit alarm ALK to turn off after one or two minutes?
If the spring on the Von Duprin exit alarm ALK board is not located correctly as shown on the instructions, then the vibration from the horn allows the cylinder to turn and shut the exit alarm ALK ...
What is the part number for the ALK sign?
The sign for exit alarm, ALK, is SIGN-1.
What is AR1, AR3, or AR6 on a Von Duprin exit alarm ALK?
AR1 is Auto-Reset 1.5 minute, AR3 is 3 minute, or AR6 is 6 minute option processed through engineering specials on a Von Duprin exit alarm ALK.
What cylinder is needed with Von Duprin exit alarm ALK?
The ALK uses a 1 1/4" mortise cylinder with straight cam. (NO DOGGING)
Why would the ALK chirp?
A low battery could cause the exit alarm ALK to chirp.  Replace the battery and if it is  still chirping, then replace the circuit board part number 101030-00.
If using the alarm kit-ALK with the 99 device what power supply is needed?
Exit alarm ALK operates with 9VDC battery and doesn't required a power supply.If you choose to hard wire the exit alarm ALK use the PS902 power supply.Exit alarm ALK requires 24VDC regulated power ...
What is the current draw of a Von Duprin exit alarm kit ALK?
The current draw of a Von Duprin exit alarm ALK is .25 amp when alarm is activated.
ALARM KIT
ALK, Battery Alarm Kit, ALK Alarm Kit
Will one PS902 power supply run two Von Duprin exit alarm ALK'S?
 One PS902 power supply will run up to six Von Duprin exit alarm ALK devices. PS902  power supply must be set to 24VDC to operate the exit alarm ALK.  Exit alarm ALK exit devices must be as clo...
PS902
What power supply replaces the Von Duprin 9VDC PS9 power supply?
The PS9 power supply was discontinued.  The new exit alarm ALK can either use a 9VDC battery or 24VDC regulated power supply. There is no direct replacement for Von Duprin PS9 power supply. Cur...
How do you specify an exit alarm ALK with a hard wire to the power supply?
All new 22, 33/35A and 98/99 series exit devices with exit alarm ALK option can be hard wired to the PS902 power supply as a standard  feature.
Can the Von Duprin ALK exit alarm be ordered with hex dogging option on?
The standard exit alarm ALK devices are not available with dogging option. The device can be ordered through Engineering Special with dogging option on non fire exit devices. This special is o...
Can I use CD and ALK on a 98/99 series Von Duprin?
Standard 98/99 exit alarm ALK devices are available with cylinder dogging option as of October, 2011. The device can be ordered standard with cylinder dogging and exit alarm ALK opti...