Low temperature alarms installed in valve enclosures must be tested annually at the beginning of which season?

• A. Winter
• B. Spring
• C. Summer
• D. Heating Season

Answer: (D)

Testing low temperature alarms in valve enclosures at the start of the heating season ensures reliability when cold weather begins to stress the system. These alarms are there to detect drops in temperature and prevent freezing of components, so validating their operation before temperatures really drop is crucial. By testing as the heating season begins, you confirm that sensors, wiring, and notification devices will respond correctly during the period when cold conditions are most likely, reducing the risk of undetected freezing or alarm failure. If you wait until deeper winter, you might find issues too late for timely remedy.