Description
The Nordyne 621451R 2-Pole Sequencer which is used in HVAC systems to regulate the operation of a number of heating or cooling stages. It makes the startup and shutdown of each stage in order to avoid overloading and to achieve the maximum performance of the system. The sequencer also enhances the system efficiency, minimizes energy utilization, and increases the life cycle of equipment by regulating the order of operation. They are widely used in multistage heating and cooling applications, such as those systems that are prevalent in large structures such as commercial buildings and industries.
