SECTION 4
SUPERVISORY CONDITIONS
INTRODUCTION
A System Supervisory Condition is used to indicate the operative condition of Automatic Sprinkler Systems and
other systems used for the protection of life and property. A Supervisory Condition may indicate that one of these
systems is inoperative.
NOTE: Refer to Figure 4 for locations of interface panel LEDs and keys.
When a System Supervisory Condition is detected by the 4020, the condition is indicated by the following:
l
Yellow “SYSTEM SUPERVISORY” LED is flashing
l
Tone-alert is on steady
. Annunciator LEDs may illuminate
l
Alphanumeric display on the interface panel shows the following:
**SUPERVISORY**
Press <ACK> to review.
FIRE = 0
PR12 = 0
SUPV = 1
TRBL = 0
The panel has one yellow SYSTEM SUPERVISORY LED which lights when a supervisory condition is present in
the system. When such a condition occurs, the LED flashes, the tone-alert is ON steady, and a supervisory message
is displayed by the alphanumeric display on the interface panel. When the &UPV ACK> key is pressed, the
SYSTEM SUPERVISORY LED flash becomes a steady glow, and the tone-alert silences.
GLOBAL ACKNOWLEDGE PANEL OPERATION DURING SUPERVISORY CONDITIONS
“SUPERVIsoRY*’
Press cACK> to revview.
FIRE I 0 PRl2 IO
SUPV I1
TRBL = 0
4-T
FIRE PRIORITY 2
SYSTEM
SYSTEM ALARM POWER
0 0
ALARM ALARM
AI\&
fE][i%i) m
ACKNOWLEeE-
ALPHANUMERIC DISPLAY
YELLOW SYSTEM SUPERVISORY LED
(FLASHING)
Figure 4
Interface Panel Showing System Supervisory Condition
A GLOBAL ACKNOWLEDGE of a System Supervisory Condition is accomplished in the following manner.
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