This 0 to 30 psi pressure gauge features a compact 1-1/2" face

the circuit should be closed (beeping)

This industrial-spec transformer is built to withstand the thermal stressors common in 60Hz industrial HVAC electrical systems

If your system requires a multi-speed or variable-speed inducer

gaskets and the blower motor are typically sold separately or as part of a larger assembly depending on the specific model requirements

Trane CNT8121 Control Board 326058-755 This 0 to 30 psiThe Trane CNT8121 Control Board is a high performance integrated furnace control designed for precise management of heating cycles and blower motor operations. This single stage IFC serves as a direct replacement for various Trane furnace control boards, ensuring seamless integration with existing 24V thermostat wiring and 120V gas valve circuits. As a critical component for maintaining system reliability, the CNT8121 monitors safety limit switches