TSGR-21 GAS Release Panel User Manual
Vighnaharta Technologies Pvt. Ltd. Page 34 of 43
• The zone fire status is visually indicated by respective zone fire LED.
• Common Twin Fire LED turns ON.
• If Pre Release is not running then Pre Release, RAC Released, Remote Release, RAC Abort LEDs are OFF.
• Internal buzzer produces steady sound and it suppresses the fault and test fire buzzer indication.
• NAC 1 turns ON When Single Fire, NAC2 Turns ON When Cross Zone means both the zones are in Fire
Condition and NAC 3 release when RAC Release till system silence or reset action is carried out by user.
• The fixed Fire output of the relay (PFC Relay - O/P1) gets activated.
• All events are stored in memory.
• Fire alarms latched and are not allowed to clear automatically.
• Timer for NAC Silence starts.
• Depending upon RAC setting, the Pre Release timer starts and the system enters into Pre Release condition.
4.2.2 Fault Condition
If system detects any fault, it immediately enters into fault condition. The system indicates fault visually and
audibly with distinctive indication than fire alarm (1 Sec ON and 2 Sec OFF) . NAC is not active, the fixed fault
output relay (Prog1 relay) is activated. The system is able to recognise faults in Zone circuit, RAC circuit, NAC
circuit, Mains fail, Battery Low and Pressure low fault, Actuator fault. The system faults are shown on LCD as
shown below.
For example,
Fault →Zone1: Short
Fault→NAC1: Open
Fault→Pressure1 Low
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