Which of the following is NOT a characteristic of the Direct Spark Ignition (DSI) system?

The characteristic associated with extended warm-up time is not typical of a Direct Spark Ignition (DSI) system. DSI systems are designed to initiate combustion quickly and efficiently. The spark generated by the DSI ignites the gas directly, allowing for rapid ignition and minimal delays in the warm-up period. This capability is one of the advantages of DSI systems, as they enhance the efficiency and responsiveness of gas appliances.

In contrast, high voltage ignition, low amperage, and controlled gas flow are all inherent features of DSI systems. High voltage ignition provides the necessary energy to create a spark that ignites the gas. Low amperage is a result of the efficient design of the ignition system, which reduces electrical consumption. Controlled gas flow is essential to ensure that the gas mixture is optimal for ignition and combustion, further enhancing safety and performance.