Built to exact OEM specifications

it remains in the open position until the 120Vac Class F coil is energized

The Male NPT connection ensures a secure

The 391937 and 391937/U are the same Honeywell/Resideo conversion kit

Carrier HH79NZ039 Sensor 322027-701 Built to exact OEM specificationsThe Carrier HH79NZ039 is a Factory Authorized Part designed for high accuracy thermal monitoring in commercial and residential HVAC systems. This versatile thermistor is primarily utilized as an Outdoor Air Temperature (OAT) sensor, providing critical data to the economizer logic to determine free cooling eligibility. Beyond ambient air sensing, the HH79NZ039 is engineered for multi mode service, functioning effectively as a Supply Air Temperature