Danfoss 176U5364 Switch 30067439-890 Does this roll include any

Does this roll include any fittings or orifices

This OEM furnace pressure switch is calibrated to a specific set point of -0

For spark ignition (AS) units

Note that this specific unit is shipped without a bracket

What causes an orifice to fail

Danfoss 176U5364 Switch 30067439-890 Does this roll include anyThe Danfoss 176U5364 is a professional grade 4 pole selector switch engineered for high demand industrial and commercial HVACR applications. Specifically built for compatibility with Danfoss VLT Series frequency converters and 3 phase electrical systems, this 600V 10AMP switch provides precise manual control over system modes. The four position rotary design allows technicians to toggle through operational states with distinct tactile feedback,