Factory Direct Hardware Von Duprin CX9947EO3 - Manual (Page 16)

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Additional Information
Typical Specification
Basic System Design
Each Chexit controlled exit device is an emergency exit system con-
sisting of a door or pair of doors equipped with Von Duprin CX99
exit device(s). The system has three modes of operation command:
• Emergency Save Exit Mode
• Secure Mode with Alarm and Conditional Release
• Authorized Exit Mode
Emergency Safe Exit Mode
Whenever the safety detector (smoke, fire, water flow, etc.) signals
that an emergency condition is present to the Chexit, the device will
unlock instantaneously, sound the horn and flash the lamp rapidly.
The door(s) may be opened immediately in the usual manner by
depressing the push pad. After authorized personnel reset the life
safety detector system, the Chexit may be reset by actuation of the
key cylinder located on the device. This will clear the alarm state and
rearm the Chexit.
In the event of a power loss, the electronics become completely
inactive, allowing the Chexit to operate as a normal exit device
providing a means of egress from the building.
How-To-Order Information
1. Product description number.
2. Size 4' (1219mm) — for door sizes 3'4" to 4' (1016mm) to
(1219mm).
Size 3' (914mm) — for door sizes 2'10" to 3' (864mm) to
(914mm) are shipped standard.
3. Door thickness if other than standard 1-3/4" (45mm).
4. Finish, see page 16.
5. Handing, LHR or RHR. Required on “L” and “CD” function, only.
See page 16.
6. “SNB” when using sex bolts.
Secure Mode with Alarm & Conditional Release
The secure mode will operate whenever the doors are latched and
the Chexit is activated to the armed state. This is identifiable by the
slow flashing of the indicator lamp and the device push pad will
appear to be locked. When the exit device on the door(s) is
depressed the horn will sound along with a rapid flashing indicator
lamp at the device. The push pad will remain in a locked state for
the predetermined period of delay of 15 (or 30) seconds. This will
allow time to intercept an unauthorized person who may be trying
to exit. After the delay period, the push pad will retract the latchbolt
permitting egress from the area. The horn sounding and rapid flashing
light will continue until the Chexit is reset by authorized personnel at
the key cylinder on the device.
Authorized Exit Mode
For authorized exit while the Chexit is armed, the door(s) may be
released for a period of time, from 2 to 28 seconds without activating
the alarm by turning key cylinder in counter clockwise or off position
and resetting in clockwise position; system can remain disarmed in
counter clockwise position. This mode is actuated by the key cylinder
or an external access control input which allows the Chexit to operate
as a normal exit device.