Can I use this for 80% furnaces

What is the difference between this and a standard Natural Gas orifice

System Protection: Prevents heavy frost accumulation that restricts airflow and reduces HVAC system efficiency

repeatable seal during field maintenance

How do I wire the end switch on the AG14B02A

Cleveland Controls AFS-460-136 Switch 30067439-890 Can I use this forThe Cleveland Controls AFS 460 136 is a professional grade air pressure sensing switch designed for critical airflow proving applications in commercial HVAC and energy management systems. This field adjustable unit features a DPDT (Double Pole Double Throw) relay configuration, providing versatile switching logic for 120V to 277VAC circuits. Engineered for precision, it monitors positive, negative, or differential pressure across a range of 0. 40" 0.