In boiler systems, what is primarily monitored to ensure safety?

In boiler systems, monitoring pressure and water levels is crucial for ensuring safety because both factors are critical for the proper operation of the boiler. The pressure inside the boiler must be maintained within certain limits to prevent overpressure situations that can lead to catastrophic failures, including explosions. High pressure can compromise the integrity of the boiler components, while low pressure might indicate that the boiler is not functioning efficiently or securely.

Water levels are equally important, as inadequate water levels can lead to overheating and damage to the boiler. If the water level drops too low, it can expose the heating elements or tubes, resulting in overheating or even a meltdown in extreme cases. Therefore, monitoring both pressure and water levels provides a comprehensive safety mechanism to prevent operational hazards.

While water temperature, fuel levels, and fan speed can affect boiler operation, they do not directly address the immediate risks associated with boiler pressure and the risk of damage to the system, making the monitoring of pressure and water levels a top priority in maintaining safety.