Auto Changeover Operation - Fujitsu ASU 9RLF Service Instructions Manual

Split type room air conditioner r410a
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4. AUTO CHANGEOVER OPERATION

When the air conditioner is set to the AUTO mode by remote control, operation starts in the optimum
mode from among the HEATING, COOLING, DRY and MONITORING modes. During operation, the
optimum mode is automatically switched in accordance with temperature changes. The temperature
can be set between 64°F(18°C) and 88°F(30°C) in 2°F(1°C) steps.
Operation flow chart
Room temp.
>Ts+4°F(2°C)?
NO
Room temp.
<Ts- 4°F(2°C)?
HEATING OPERATION
Thermostat remains
YES
in OFF state for 6 minutes or
System stops
YES
or operation command other than
auto changeover operation?
START
YES
T
Setting temperature
NO
:
S
YES
longer?
NO
NO
COOLING OPERATION
Thermostat remains
in OFF state for 6 minutes or
longer?
NO
System stops
or operation command other than
auto changeover operation?
NO
01-03
YES
YES

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