User Manual

Adaptable to most 12-24VDC Control
Units.
Low standby current consumption.
Rugged solid-state construction.
Large .8 Inch LCD back-lit digital
readout.
Precision quartz crystal reference one
second incremental countdown.
Field programmable for desired delay
from 1-99 seconds or 1 second to 99
minutes in 59 seconds.
Output to trigger external relay when
countdown reaches 0.
On-board selectable Sonalert “ticks”
in one second intervals and sounds
continuously when time reaches zero.
On-board LED drivers indicate Power
On, Panel Activated, Purge Ready and
Purge Running.
The Model TA-123PP comes with a key
switch controller for Purge Panel
applications. When the Purge Running
LED is illuminated, a 24VDC output
voltage is supplied to activate a remote
relay. The remote relay contacts operate
the exhaust fans.
Features
109 Portwatch Way Wilmington, N.C. 28412 Phone: (800) 251-2512 Fax: (800) 251-9878
Internet: www.ledinc.com Email: sales@ledinc.com
Graphic Annunciators * Water Leak Detection
Fireman’s Smoke Control Panels * ARA Systems
FS
SERIES
When the extinguished agent is discharged, the
releasing panel activates the purge panel con-
troller. The controller disables the key operated
purge switch, lights the Panel Activated indicator
and starts the timing cycle.
The purge fans can NOT be activated until the
preset “agent soak time” has expired. When the
time cycle is complete, the Purge Ready indica-
tor is activated and the Purge switch is enabled.
Operation of the purge switch will light the Purge
Running indicator and activate the remote relay
output. This 24vdc output is used to energize a
Start Relay (relay by others), located at the
purge fan(s).
Operation
CONTROLLER
PURGE PANEL
Model TA-123PP

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