7
SYSTEM FUNCTIONS
MODE BUTTON
The unit can be set to five different operating modes: HEAT, COOL, DRY, FAN ONLY and AUTO.
NOTE:
AUTO MODE has fixed setpoints of 68° F heating and 77° F cooling, which are
not adjustable. The system will automatically select heating or cooling to maintain room
temperature within this band.
SLEEP MODE
The Vireo offers three selectable sleep modes for your comfort. The unit will automatically
adjust room temperature during your sleep time. This slight change in temperature will not
affect your comfort level due to the natural effects that sleeping has on the body, but it will
save on energy consumption and will lower electric bills.
ENERGY SAVINGS MODE
This feature will automatically select the optimal compressor and fan speeds to allow for
energy savings while operating in Cooling or Heating modes. The compressor and fan will
automatically slow down as the room temperature reaches the set point.
SELF-DIAGNOSIS
Vireo has a built-in computer which uses real-time diagnostics which help prolong the unit’s
life. The automatic diagnosis feature continuously scans for errors or malfunctions and fault
codes are shown on the unit display to facilitate troubleshooting and repair.
POWER FAILURE MODE
Power interruptions are no problem for the Vireo system. User selections and system parameters
are stored in non-volatile memory. These parameters are retained during a power failure. When
power is returned, the Vireo system will automatically return to the last operating mode.
