Carrier HH18HA199 Limit Switch 322838-753 the Robertshaw 900-106 Gas Pressure

the Robertshaw 900-106 Gas Pressure Test Kit is the dependable solution for ensuring optimal combustion efficiency

It maintains the same 1/8" FNPT connections and mounting configurations required for standard HVAC damper retrofits

Manual Flushing: Accessible range spring allows for manual flushing to clear sediment without altering the calibrated pressure settings

This internal pilot-operated valve is a critical component for safety and efficiency in HVACR and commercial combustion systems

Carrier HH18HA199 Limit Switch 322838-753 the Robertshaw 900-106 Gas PressureThe Carrier HH18HA199 Limit Switch is a critical safety component designed for high temperature monitoring in HVAC induction combustion furnaces and residential heating systems. This genuine OEM replacement part is calibrated to trigger at a fixed 200 degree opening temperature, automatically interrupting the electrical circuit via its SPST (Single Pole Single Throw) configuration to prevent heat exchanger damage or hazardous rollout conditions.