the PopTop design allows the actuator to be swapped out by simply depressing the release button

making it a versatile choice for direct-drive motor applications

the normally open (NO) contacts (terminals 1-3 and 4-6) close

provided the 4-1/2" lead length and Style D connector match your specific burner configuration

Anti-Vacuum Functionality: Effectively permits air intake during system maintenance or draining to prevent vacuum-related stresses

Carrier HH79NZ023 Air Sensor 320735-701 the PopTop design allows theThe Carrier HH79NZ023 Outdoor Air Sensor is a precision engineered OEM replacement part designed for accurate environmental monitoring in residential and commercial HVAC systems. Built to withstand rigorous external conditions, this sensor operates within a wide temperature range of 40F to 158F, ensuring consistent data transmission for system logic and economizer control. Its rugged housing provides superior protection against moisture and debris,