New York Low Pressure Boiler Certificate of Fitness (COF) Practice Test

What must be done to reset the manual reset pressuretrol after it shuts down the boiler?

1. Automatically reset

2. Turn off the main switch

3. Manually reset

4. Wait for cooldown

The correct answer is: Manually reset

The manual reset pressuretrol is designed to shut down the boiler when it detects a pressure condition that exceeds safe operating levels. To restore the boiler to operation after it has shut down, the manual reset feature requires a specific action to be taken—this action is to manually reset the device. When the pressuretrol engages its shutdown mechanism, it must be manually reset by turning the reset button or lever to acknowledge the issue has been addressed before the boiler can safely restart. It is vital for safety reasons, as it ensures that an operator has assessed the situation, addressed the underlying cause of the pressure event, and is ready to resume operation without the risk of repeating the unsafe condition that caused the shutdown. The other options may not directly relate to the required action needed to restore normal functioning to the boiler after a pressuretrol activation. For example, automatic reset mechanisms do not apply to manual reset pressuretrols, and simply turning off the main switch or waiting for cooldown does not involve interaction with the pressuretrol itself. Thus, the appropriate course of action in this scenario is to manually reset the pressuretrol.