New York Low Pressure Boiler COF Practice

The correct choice highlights that a drain is the only component that could tap onto a low water cut-out. This is because a low water cut-out is a safety device that prevents the boiler from operating when the water level drops below a predetermined point. Its primary function is to safeguard the boiler from damage due to low water conditions. When considering the specific roles of the other components listed, a pressure gauge measures the pressure within the boiler system but does not interact directly with the low water cut-out device. Similarly, a water level indicator provides a visual representation of the water level but does not directly control or engage with the cut-out mechanism. The feedwater controller is responsible for automatically regulating water supply to the boiler but is not a component that taps into the low water cut-out signal. In contrast, the drain can be associated with the low water cut-out in terms of functionality, as draining water from the boiler could trigger the low water condition, which the cut-out would then respond to by shutting down the boiler to prevent any potential hazards.