At what temperature will the fixed HL in the LAV automatically discharge the extinguishing agent?

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Multiple Choice

At what temperature will the fixed HL in the LAV automatically discharge the extinguishing agent?

Explanation:
The fixed halon system in the lavatory relies on a temperature-sensitive device—typically a fusible link—that melts or activates when heat reaches a specific level. When that designed temperature is reached, the agent is released automatically to suppress a fire in the lavatory without crew action. That activation temperature is about 172 degrees Fahrenheit (roughly 79°C). This setting is chosen to avoid accidental discharge during normal use while ensuring rapid suppression if a fire develops. The other temperatures listed do not match the system’s rated activation point.

The fixed halon system in the lavatory relies on a temperature-sensitive device—typically a fusible link—that melts or activates when heat reaches a specific level. When that designed temperature is reached, the agent is released automatically to suppress a fire in the lavatory without crew action. That activation temperature is about 172 degrees Fahrenheit (roughly 79°C). This setting is chosen to avoid accidental discharge during normal use while ensuring rapid suppression if a fire develops. The other temperatures listed do not match the system’s rated activation point.

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