Yes, the outdoor unit of an air conditioner does emit hot air as part of its normal operation. The outdoor unit contains the compressor and condenser coils, which work together to release heat from the indoor air to the outside. As a result, hot air is expelled from the outdoor unit.
In most air conditioning systems, the outdoor unit is designed to release the hot air away from the house, typically through vents or grilles located on the sides or top of the unit. The hot air should be directed away from neighboring properties and should not enter other houses or living spaces.
If your neighbor is experiencing hot air entering her house from your air conditioner's outdoor unit, there may be an issue with the installation or placement of the unit. It's possible that the unit is positioned in a way that allows the hot air to blow directly into her property, or there could be an obstruction that is redirecting the airflow.
To address this concern, you should consult with a qualified HVAC technician or an air conditioning specialist. They can assess the installation and positioning of your outdoor unit to determine if any adjustments or modifications are necessary to ensure that the hot air is properly directed away from neighboring properties.