Light Engineered Displays PURGE PANEL CONTROLLER User Manual

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PURGE PANEL
CONTROLLER
Graphic Annunciators * Water Leak Detection Fireman’s Smoke Control Panels * ARA Systems
109 Portwatch Way Wilmington, N.C. 28412 Phone: (800) 251-2512 Fax: (800) 251-9878
Internet: www.ledinc.com Email: sales@ledinc.com
Features
Adaptable to most 12-24VDC Control Units.
Low standby current consumption.
Rugged solid-state construction.
Large .8 Inch LCD back-lit digital
readout.
FS
SERIES
Precision quartz crystal reference one second incremental countdown.
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.
Model TA-123PP
Operation
When the extinguished agent is discharged, the releasing panel activates the purge panel con­troller. 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 indica­tor 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).
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PURGE PANEL
FS
SERIES
CONTROLLER
Simplified Hook-up Diagram
FACP TA-123PP
24 vdc power
Discharge Contact in FACP
+
Power Input - 24 VDC
-
+
Trigger ­Starts Timer Sequence
+
R
1
Relay - Mounted at Purge Fan
Purge Fan
N
H
120 VAC - Typical for Purge Fan
24 VDC Output
-
for remote relay
Setting the Purge Delay
Switches S1 - S4 are used to set the initial count down time of the TA-123PP. Each is set to the digit of the initial count in the format of MM:SS where MM is the minutes to count and SS is the seconds to count. You may set the minutes to count on S1 and S2 (S1 is 10 min and S2 is 1 min) from 0 to 99 minutes. S3 and S4 set the seconds to count from 0 to 59 seconds. If S1 and S2 are set to 00 minutes, then S3 and S4 may be set from 0 to 99 seconds.
Additional Information
Purge timer is activated by the suppression system discharge contacts. After the preset user-adjustable time delay has expired, the Purge Key Switch is enabled. Operate Key Switch to energize the Purge Fan start relay. Remote relay contacts close to start the Purge Fan.
Specifications: 24 vdc input filtered and regulated 155ma standby, 175ma activated and 335ma purge engaged.
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