What would be the most likely consequence of not having a dedicated LWCO when required?

Having a dedicated low water cutoff (LWCO) is crucial for the safe and efficient operation of a boiler system. The primary role of the LWCO is to monitor the water level in the boiler and ensure that there is always sufficient water to prevent overheating or damage to the boiler components.

When an LWCO is not installed or functioning correctly, one of the significant risks is that the boiler feed pump may run dry, which could lead to overheating and potential damage. The feed pump relies on having water to operate efficiently. Without adequate water levels, the pump can become damaged due to overheating, cavitation, or sustained operation without the medium it is designed to move.

In contrast, while reduced efficiency of the boiler, water contamination, and inadequate steam production are important issues, they are often secondary effects of the primary danger posed by the absence of a dedicated LWCO. The direct impact on the boiler feed pump emphasizes the essential safety function of the LWCO in maintaining proper water levels.