Unlike automatic limit controls

The 7-inch insert length is specific to the unit's airflow pattern

especially in high-velocity airflow environments

High-Accuracy Sensing: The 6-foot capillary and liquid-filled bulb ensure the Johnson Controls A19AAA-40 reacts quickly to thermal changes

this specific cage assembly is designed for use with lower pressure refrigerants like R22

Carrier HH11AZ200 Vent Switch 340155-7024 Unlike automatic limit controlsThe Carrier HH11AZ200 Vent Switch is a critical OEM replacement safety component designed to monitor airflow and temperature within the burner box of select Carrier, Bryant, and Payne furnaces. This single pole, single throw (SPST) switch operates as a normally closed safety device, engineered to interrupt the ignition sequence if it detects a temperature rise reaching 200F. Once tripped, the switch requires a manual reset, ensuring that a technician