The Armstrong Furnace R100684-04 Pressure Switch is a critical safety component engineered for precise inducer motor verification and flue gas management

or intermittent continuity when troubleshooting sensor communication errors

Ensure field-level accuracy in gas pressure regulation with the Sensus 143-62-021-18 Orange Spring

meaning it will automatically close the circuit once the sensed temperature falls below the reset point

Robust SPST Configuration: The Single-Pole Single-Throw design offers reliable switching performance under demanding furnace operating conditions

Watts 0792001 Test Cock Bronze The Armstrong Furnace R100684-04 PressureThe Watts 0792001 (model LFTC 1 8) is a high performance 1 8" test cock bronze valve engineered for professional grade backflow preventer testing and diagnostic monitoring. This lead free component serves as the official replacement for the discontinued Watts 0006630, ensuring full compatibility with existing backflow preventer assemblies and isolation lines. As a veteran grade HVACR part, it utilizes a durable full port ball valve design with a