04-10
START
Room temp. ≥
Ts + 3.6°F (2°C) ?
COOLING OPERATIONHEATING OPERATION
YES
Auto change over is
second or more?
NO
NO
YES
NO
NO
AUTO CHANGEOVER operation flow chart
TS : Setting temperature
Room temp.
Ts - 3.6°F (2°C) ?
Thermostat remains
in OFF state for 6 minutes or
longer?
System stops
or operation command other than
auto changeover operation?
NO
Thermostat remains
in OFF state for 6 minutes or
longer?
System stops
or operation command other than
auto changeover operation?
Middle zone
NO
NO
Operation mode of
outdoor unit : Cooling?
YES
NO
Operation mode of outdoor unit
: Heating?
YES
NO
YES
Outdoor temperature <
77°F (
25°C) ?
NO
YES
YES
YES
NO
YES
YES
Operation mode
before the monitor mode is
cooling mode?
Monitor mode