What is a Fan Control classified as?

A Fan Control is classified as a Normally Open Temperature Control that Closes on Temperature Rise because its primary function is to operate fans in response to temperature changes. In this configuration, the device is designed to remain open (meaning the circuit is incomplete and the fan is off) until a certain temperature is reached. Once the temperature rises above the predetermined setpoint, the fan control closes the circuit, allowing current to flow and activating the fan to promote cooling or ventilation.

This mechanism is particularly important in applications such as heating, ventilation, and air conditioning (HVAC) systems, where maintaining a specific temperature range is crucial for efficiency and comfort. The design ensures that energy is only used when needed, enhancing operational efficiency and prolonging equipment life.

This understanding of fan control systems is fundamental in gas technician operations, especially when ensuring safety and compliance with operational standards in HVAC environments.