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this high-integrity Reznor replacement switch provides the electrical reliability required for 24/7 HVAC automation
preventing thermal stress on the heat exchanger and ensuring proper venting performance
Key Benefits for Technicians: Universal Replacement: Direct cross-reference for leading brands including Rheem
Does this assembly include the internal spring and seat
Cleveland Controls DFS-221 Switch this high-integrity Reznor replacement switchThe Cleveland Controls DFS 221 Air Flow Switch is a high precision, factory set differential pressure switch designed for air proving in demanding HVAC and energy management systems. Engineered to detect positive, negative, or differential pressure, this SPDT air pressure sensing switch is factory calibrated to operate on a pressure rise at 0. 05" 0. 02" w. c.. Its non adjustable design ensures consistent performance in duct heaters, ovens, and
US$ 870.00
US$ 199.99