Carrier HK06NB017 Pressure Switch 320720-756 Adjustable Hysteresis: Dial in a

Adjustable Hysteresis: Dial in a 1 to 30°F differential to prevent short-cycling of compressors or furnace fans

preventing leakage even in systems with high differential pressures

The Trane CNT3776 is a professional-grade 24V 3TFI ignition module engineered for precise combustion control in residential and light commercial heating systems

Fail-Safe Certainty: Mechanical spring return provides 100% reliable closure during power loss

and R407 series

Carrier HK06NB017 Pressure Switch 320720-756 Adjustable Hysteresis: Dial in aThe 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