Fujitsu ARU7RLF Service Instruction page 5

3 When Heating was selected at
01-02 is performed.
When the compressor was stopped for 6 consecutive minutes by the temperature control function
4
after the Cooling(Auto:Dry) or Heating mode was selected at
to Monitoring and the operation mode is selected again.
AUTO CHANGEOVER operation flow chart
HEATING OPERATION
YES
Thermostat remains
in OFF state for 6 minutes or
longer?
NO
YES
System stops
or operation command other than
auto changeover operation?
NO
1
, the same operation as HEATING OPERATION of page
START
Room temp.
Ts+4°F(+2 °C)
NO
YES
Room temp.
Ts -4°F(-2 °C)
NO
Middle zone
Operation mode
of outdoor unit : Cooling or Dry?
NO
YES
Operation mode
of outdoor unit : Heating?
NO
YES
Outdoor temperature
77°F(25 °C)?
NO
01-02
1
above, operation is switched
YES
?
?
YES
COOLING (AUTO:DRY)
Thermostat remains
in OFF state for 6 minutes or
or operation command other than
auto changeover operation?
T Setting temperature
:
S
OPERATION
YES
longer?
NO
YES
System stops
NO