6 Energy saving and optimum operation
Operation manual
9
ATXF20~42C5V1B
Daikin room air conditioner
3P520336-10K – 2020.08
5.3.6
Econo operation
This is a function which enables efficient operation by limiting the
maximum power consumption value. This function is useful for cases
in which attention should be paid to ensure a circuit breaker will not
trip when the product runs alongside other appliances.
INFORMATION
▪ Powerful and Econo operation CANNOT be used at the
same time. The last selected function takes priority.
▪ Econo operation reduces power consumption of the
outdoor unit by limiting the rotation speed of the
compressor. If power consumption is already low,
Econo operation will NOT further reduce power
consumption.
To start/stop Econo operation
1
Press
to start.
Result:
is displayed on the LCD.
2
Press
to stop.
Result:
disappears from the LCD.
5.3.7
OFF/ON timer operation
Timer functions are useful for automatically switching the air
conditioner off/on at night or in the morning. You can also use OFF
timer and ON timer in combination.
INFORMATION
Program the timer again in case of:
▪ A breaker has turned the unit off.
▪ A power failure.
▪ After replacing batteries in the user interface.
To start/stop ON timer operation
1
Press
to start.
Result:
is displayed on the LCD and the timer lamp lights
up.
INFORMATION
Each time
is pressed, the time setting advances by
1 hour. The timer can be set between 1 to 12 hours.
2
Press
to stop.
Result:
disappears from the LCD and the timer lamp
goes off.
To start/stop OFF timer operation
1
Press
to start.
Result:
is displayed on the LCD and the timer lamp lights
up.
INFORMATION
Each time
is pressed, the time setting advances by
1 hour. The timer can be set between 1 to 9 hours.
2
Press
to stop.
Result:
disappears from the LCD and the timer lamp
goes off.
INFORMATION
When you set the ON/OFF timer, the time setting is stored
in the memory. The memory will be reset when the user
interface batteries are replaced.
Use of night set mode in combination with OFF timer
The air conditioner automatically adjusts the temperature
setting (0.5°C up in cooling, 2.0°C down in heating) to
prevent
excessive
cooling/heating
and
ensure
a
comfortable sleeping temperature.
To combine OFF timer and ON timer
1
To set the timers, refer to
"To start/stop ON timer operation"
Result:
and
are displayed on the LCD.
2
Example of what is displayed on the LCD if you combine the 2
timers:
6
Energy saving and optimum
operation
INFORMATION
▪ Even if the unit is turned OFF, it consumes electricity.
▪ When the power turns back on after a power break, the
previously selected mode will be resumed.
CAUTION
NEVER expose little children, plants or animals directly to
the airflow.
WARNING
Do NOT place objects below the indoor and/or outdoor unit
that may get wet. Otherwise condensation on the unit or
refrigerant pipes, air filter dirt or drain blockage may cause
dripping, and objects under the unit may get dirty or
damaged.
WARNING
Do NOT place a flammable spray bottle near the air
conditioner and do NOT use sprays near the unit. Doing so
may result in a fire.
CAUTION
Do NOT operate the system when using a room
fumigation-type insecticide. Chemicals could collect in the
unit, and endanger the health of people who are
hypersensitive to chemicals.
▪ Make sure the area is well ventilated. Do NOT block any
ventilation openings.
▪ Turn the breaker off when the unit is NOT used for longer periods
of time. If the breaker is on, the unit consumes electricity. Before
restarting the unit, turn the breaker on 6 hours before operation to
ensure smooth running.
▪ Adjust the air flow direction to avoid cool air from gathering on the
floor or warm air against the ceiling. (Up during cooling or dry
operation to the ceiling and down during heating operation.)
▪ Avoid direct air flow to room inhabitants.
▪ Operate the system within the recommended temperature range
(26~28°C for cooling and 20~24°C for heating) to save energy.
