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

the 006511F modulating valve provides variable gas flow control

Sealed Bearings: Features permanently lubricated ball bearings for quiet operation and a longer service life in high-temperature applications

Unlike automatic limit controls

While it can handle various voltages

Carrier HH11AZ200 Vent Switch 340155-7024 The 7-inch insert length isThe 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