Carrier HK06MC110 Pressure Switch

The Carrier HK06MC110 Pressure Switch is a critical OEM replacement part designed for high-fire combustion control in multi-stage heating systems. This Single Pole Single Throw (SPST) pressure assembly is factory-calibrated with a high-fire set point of -0.27" WC and a low-fire reset of -0.18" WC to ensure the inducer motor maintains proper static pressure for safe venting. Engineered for Carrier, Bryant, and Payne furnaces, this switch serves as the direct replacement for HK06WC091 and HK06WC092. It utilizes a 1/2-inch NPT electrical connection and a rugged NEMA 1 enclosure to withstand the high-temperature environments typical of industrial and residential condensing gas furnaces. Integrating this genuine furnace pressure switch prevents nuisance trips and ensures the ignition sequence proceeds only when the draft is established, protecting the heat exchanger and internal components from improper combustion or flue gas recirculation. This part is essential for maintaining the factory-certified safety parameters of your HVAC system.

Key Benefits

• Direct OEM Compatibility: Specifically engineered to replace legacy parts HK06WC091 and HK06WC092 without modifications.
• Precision Calibration: Factory-set to -0.18/-0.27 water column thresholds for accurate high-fire performance.
• Enhanced Safety: Validates proper inducer fan RPM and vacuum pressure before allowing the gas valve to open.
• Contractor-Grade Durability: Features a high-quality diaphragm and SPST switch mechanism designed for heavy-cycle HVAC applications.

Common Questions

Can I use an adjustable universal switch instead of the HK06MC110?
It is not recommended. This OEM Carrier switch is calibrated to specific set points (-0.18/-0.27 PF) required for the safety logic of 58CTW and 58CVA series furnaces. A universal switch may fail to sense the precise pressure required for high-fire operation.

What are the symptoms of a failing furnace pressure switch?
Common signs include a furnace that won't ignite, the inducer motor running continuously without flame, or diagnostic codes indicating a "pressure switch stuck open" or "failed to close" error.

Is this switch compatible with multi-stage furnaces?
Yes, the HK06MC110 is specifically designed for high-fire applications in multi-stage units, ensuring the system transitions correctly between heat stages based on inducer draft.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.