ensuring no modifications are needed to the mounting bracket

Tool-free installation with the Danfoss clip-on fastening system for efficient field replacement

The unit utilizes a 20-foot vapor-charged sensing element that triggers the internal snap-acting contacts when any 16 to 18-inch section of the capillary reaches the setpoint

Precise Modulation: Works with Selectra modulator-regulator valves to maintain stable gas-fired temperatures without the lag of traditional butterfly valves

This typically depends on the specific wiring configuration of the control circuit

Carrier HH18HA420 Limit Switch 340793-762 ensuring no modifications are neededThe Carrier HH18HA420 Auto Limit Switch is a critical HVAC safety device designed to monitor internal furnace temperatures and protect the heat exchanger from thermal stress. This OEM Carrier replacement part operates with a fixed 90 120F temperature range, ensuring the burner cycles off if the unit exceeds safe operating parameters. As a precision calibrated 90 120 degree limit switch, it features an automatic reset function that restores continuity