The purpose of a sequencer in electric heating is to achieve what?

A sequencer in electric heating systems serves the critical function of progressively activating heating elements rather than engaging all elements simultaneously. By doing so, it prevents a sudden surge in electrical load when the heating system starts up. This gradual activation is essential for protecting the electrical circuit and the heating equipment from damage that could occur due to high inrush currents. Additionally, it helps ensure a more stable operation and enhances overall reliability of the heating system.

While energy efficiency, temperature regulation, and humidity control are important aspects of HVAC systems, these are not the primary roles of a sequencer. Energy efficiency can be an indirect benefit of smooth operation, but the sequencer itself is primarily focused on managing electrical loads effectively. Similarly, controlling temperature or humidity would typically involve different components and controls in the HVAC system. Therefore, the primary purpose of a sequencer aligns with avoiding a sudden power load during the startup of electric heating elements.