When connecting a hot surface ignition module, what must be ensured regarding the incoming power supply connections?

When connecting a hot surface ignition module, ensuring correct polarity of the incoming power supply connections is crucial. Hot surface ignition systems rely on a consistent electrical flow to heat the ignitor to the necessary temperature for igniting the gas. Incorrect polarity can lead to multiple issues, including the failure of the ignition module to function properly, damage to the module, or even safety hazards such as malfunctions or gas leaks.

In systems like these, the wiring configuration is designed for positive and negative terminals to be connected in a specific manner. If the polarity is reversed, it could cause the module to operate inefficiently or not at all, undermining the safety and reliability of the equipment.

While other factors like voltage settings, grounding, and insulation are also important for overall safety and functionality, the specific requirement for proper polarity directly affects the fundamental operation of the hot surface ignition module. Therefore, this aspect is critical to ensuring that the ignition system operates safely and effectively.