Trane BAYHALT249 Pressure Kit 321142-301 While standard unshielded wire works

While standard unshielded wire works for many basic setups

The Carrier HH18HA160 Temp Switch is a critical OEM limit switch designed for heavy-duty thermal protection in commercial and residential HVAC systems

providing the flexibility to control multiple circuits

Thermal Protection: Integrated protection prevents winding failure during restricted airflow or overload conditions

Does this module support multiple ignition attempts

Trane BAYHALT249 Pressure Kit 321142-301 While standard unshielded wire worksThe Trane BAYHALT249 High Altitude Pressure Kit is a field installed safety component designed for 80% gas furnaces operating at elevations exceeding 4,000 feet. At higher altitudes, lower air density results in insufficient negative pressure from the induced draft blower, which can lead to nuisance lockouts and improper combustion. This OEM pressure switch kit replaces the sea level calibrated switch with a component specifically tuned for thin air