Nordyne 661045R Orifice Using an automatic switch where

Using an automatic switch where a manual reset is required can lead to dangerous heat cycling

sealed construction is built to withstand the rigorous duty cycles found in residential and light commercial rooftop units

This 185F manual reset limit switch is designed to break the electrical circuit if the heat exchanger exceeds its safe operational threshold

Is the HH18HA499 compatible with older Bryant models

Nordyne 661045R Orifice Using an automatic switch whereThe Nordyne 661045R is a precision machined #45 Main Burner Orifice engineered specifically for technical compatibility with Nordyne HVAC equipment. As a critical component in the combustion manifold, this LP gas orifice (liquid propane) regulates fuel flow to ensure a stable gas burner flame and optimal thermal output. Designed for use in residential heating systems, including G6RA, G6RK, G6TA, G6TK, and MG1E series furnaces, this #45 drill size