What is the difference between "Auto" mode and "Econo" mode

AUTOMATIC OPERATION
Cooling and/ or dehumidified heating (AUTO) This mode may be normally used all year round as the system automatically works to keep a constant temperature. Air flow distribution and fan speed are also controlled automatically.

1. Push the AUTO button on. (AUTO will be displayed.)
2. Turn the temperature set dial to the left or right to set the desired temperature.

• Adjust the temperature set dial to about 75? F (24? C) for normal operation.
• The temperature of the passenger compartment will be maintained automatically. Air flow distribution and fan speed are also controlled automatically.

Heating (ECON)
The air conditioner does not activate. When you need to heat only, use this mode.

1. Push the ECON (Economy) button on. (ECON will be displayed.)
2. Turn the temperature set dial to the left or right to set the desired temperature.

• The temperature of the passenger compartment will be maintained automatically. Air flow distribution and fan speed are also controlled automatically.
• Do not set the temperature lower than the outside air temperature. Otherwise the system may not work properly.
• Not recommended if windows fog up.