When should a Red label be used?

A Red label is used specifically to indicate that a fire alarm system does not function or is inoperable. This labeling is critical for safety, as it alerts individuals that there is an issue with the system that could prevent it from detecting or responding to a fire. The presence of a Red label signifies that the system cannot be relied upon to perform its intended life-safety functions, which is crucial information for both building occupants and first responders. This clear visual indicator helps ensure that everyone is aware of the emergency situation and can take appropriate actions, such as evacuating the building or notifying authorities.

In contrast, the other scenarios involve circumstances where a label would not indicate an inoperable state. For example, when a system functions correctly, it should not display a Red label as that would misinform users of its operational status. Similarly, during routine maintenance or testing, a different protocol would apply, typically involving labels that indicate maintenance status rather than a failure. Proper labeling practices ensure effective communication regarding the operational status of fire alarm systems.