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Frequent tripping usually indicates poor combustion air
High-Ambient Reliability: Open Air Over (OAO) design and Class B insulation support stable operation in high-heat commercial environments
preventing leakage even in systems with high differential pressures
Adjustable Hysteresis: Dial in a 1 to 30°F differential to prevent short-cycling of compressors or furnace fans
Carrier HK06NB017 Pressure Switch 320720-756 Frequent tripping usually indicates poorThe Carrier HK06NB017 is a critical OEM dual pressure switch assembly designed specifically for two stage high efficiency condensing furnaces. This Honeywell manufactured component features two distinct calibrated setpoints: a low pressure circuit at 0. 71" wc and a high pressure range of 1. 60" 1. 81" wc. This configuration allows the furnace control board to verify proper venting and inducer motor performance across both low and high fire heating