Which of the following is a proper operation for a packaged air conditioning system using an electronic control board?

In a properly functioning packaged air conditioning system with an electronic control board, the operation is typically designed to ensure that the components work in a specific sequence for optimal performance and efficiency. The correct sequence involves the blower, condenser fan, and compressor working together to provide balanced air movement and cooling.

When all three components—blower, condenser fan, and compressor—come on at the same time, it allows for immediate circulation of cool air while the refrigerant starts to pump through the system. This synchronized operation helps in quickly achieving the desired temperature in the conditioned space, enhances dehumidification by ensuring that air is being moved over the evaporator coil, and prevents undue stress on the compressor by having airflow established as refrigerant starts to circulate.

This coordinated start-up is particularly important for preventing issues such as compressor overheating, which can occur if the compressor runs without the necessary airflow to maintain proper cooling. Additionally, starting all components together facilitates a more efficient overall system operation, reducing energy consumption and extending the life of the system components.

Other options might suggest a staggered operation that could lead to inefficiencies or delayed comfort in the space being cooled. Therefore, the simultaneous activation of the blower, condenser fan, and compressor is the correct and most efficient operation method for such