A furnace start up is the process of initiating and preparing a furnace for operation. This involves turning on the necessary equipment, such as the FD fan and upstream valve, and setting the appropriate parameters for temperature and pressure.
An FD fan, or forced draft fan, is a mechanical device used to supply air to a furnace. It helps to regulate the air flow and maintain the necessary oxygen levels for combustion.
The upstream valve in a furnace controls the flow of air and fuel into the combustion chamber. It helps to maintain the correct air-to-fuel ratio for efficient and safe combustion.
Torque is the measurement of the twisting force required to operate a mechanical device, such as an FD fan. In furnace start up, torque is used to adjust the speed and flow of the fan to achieve the desired air flow and pressure.
The FD fan and upstream valve are critical components in the operation of a furnace. Understanding how they work and their role in the start up process can help ensure safe and efficient operation of the furnace.