Optimal performance for the COOL, HEAT, and DRY modes can be achieved in the following temperature ranges. When your air conditioner is used outside of these ranges, certain safety protection features will activate and cause the unit to perform less than optimally.
Inverter Split Type
COOL mode: 63°F - 90°F (17°C - 32°C);
HEAT mode: 32°F - 86°F (0°C - 30°C);
DRY mode: 50°F - 90°F (10°C - 32°C)
COOL mode: 32°F - 122°F (0°C - 50°C);
COOL mode for models with low temp. cooling systems 5°F - 122°F (-15°C - 50°C)
HEAT mode: 5°F - 86°F (-15°C - 30°C)
DRY mode: 32°F - 122°F (0°C - 50°C)
For units with auxiliary electric heater, When the outside temperature is below 0°C (32°F), we strongly recommend keeping the unit plugged in at all times to ensure smooth ongoing performance.