the R11110-36 spring ensures consistent tension and responsiveness within the regulator’s "Straight-Thru-Flow" (STF) design

supporting 0-10 Vdc

Engineered to original equipment manufacturer standards

ensure the float moves freely in a vertical plane

Carrier HK42FZ018 Control Board 30067439-890 the R11110-36 spring ensures consistentThe Carrier HK42FZ018 Control Board is a critical integrated furnace control board engineered for high performance management of single stage heating systems. For technicians servicing Carrier, Bryant, and Payne furnaces, this genuine OEM replacement part provides the necessary logic to coordinate the ignition sequence, blower motor timing, and inducer operation. It effectively replaces older part numbers and is a direct fit for popular series like