SmartShift Technology: Designed to ensure quiet, reliable defrosting during winter.
Efficiency: Varies slightly by tonnage, typically offering 14.3 to 15.2 SEER2 cooling and 7.5 to 7.8 HSPF2 heating.
Durability: Features a heavy-gauge galvanized steel cabinet with a sound-control top to minimize operating noise.
Refrigerant Transition: Amana has introduced newer models (ALZS4N) utilizing R-32 refrigerant as an eventual replacement for the older ASZN4 systems.