A PTAC unit, or Packaged Terminal Air Conditioner, is a self-contained heating and cooling system commonly used in hotels, motels, hospitals, and multifamily properties. PTAC units are typically installed through an exterior wall, with one unit serving one room or suite.

In hospitality settings, PTAC units are popular because they allow individual room temperature control, which improves guest comfort while giving hotels flexibility in managing energy usage. Unlike centralized HVAC systems, PTACs operate independently room by room, making maintenance, replacement, and upgrades more manageable.

Modern hospitality PTAC units may also include energy-saving features, quieter operation, smart controls, and compatibility with hotel energy management systems.