Does this switch require professional calibration

the knurled brass design often allows for reliable hand-tightening to establish a proper electrical ground

Its durable construction withstands the acidic nature of HVAC condensate

Common Questions Will this work with other brands besides York

Whether you are servicing a gas furnace or industrial heating equipment

Cleveland Controls AFS-A-173 Pressure Switch Does this switch require professionalThe Cleveland Controls AFS A 173 is a high performance adjustable pressure switch designed for critical airflow proving in package burners, furnaces, and fuel burning equipment. This SPDT air pressure switch offers a versatile field adjustable set point range from 0. 05" 0. 02" w. c. to 12" w. c., allowing for precise calibration in positive, negative, or differential pressure applications. Built with a plated housing and a durable silicone diaphragm,