Extreme Temperature Resistance: Manufactured from industrial-grade materials to withstand the intense heat of burner assembly interfaces

This black/white color-coded spring provides a precise outlet pressure range of 0

offering exact dimensional fitment for Lochinvar Knight and A

If your wiring diagram requires a changeover contact (SPDT)

it ensures system protection while reducing nuisance callbacks caused by temporary ignition failures

Nordyne 626418R Limit Switch Extreme Temperature Resistance: Manufactured fromThe Nordyne 626418R Limit Switch is a critical OEM replacement part engineered for precise thermal regulation in HVAC systems. As an L150 20F automatic reset limit switch, it functions as a primary safety control, monitoring the internal plenum temperature to prevent heat exchanger damage. When the temperature reaches the fixed 150? F trip point, the switch opens the electrical circuit to shut down the heating element or burner. Once the system cools