Indoor Unit Control Mode - Friedrich FPHFR9A3A Service & Parts Manual

Indoor Unit Control Mode

Main general technical parameters
(1) Remote receiver distance: 8 m.
(2) Remote receiver angle: Less than 80 degrees.
(3) Temperature control accuracy: ±1℃.
(4) Time error: Less than 1%.
Functions of the control function
(1) Emergency switch
Pressing the emergency button can start or stop the unit, or the unit can start up according to the automatic mode of
operation. Press this button to turn ON the unit, the unit will run in auto mode, and press it again to turn the unit off. When
the unit is OFF, press and hold the emergency switch for 5 seconds, with 3 beeps, the indoor unit would turn to emergency
running. In such situation, the unit would be forced to turn to cooling operation with high speed, the flaps sweeping and the
unit's operation is irrelevant with room temperature.
If a remote signal has been received during the emergency run, the machine will operate upon the command of such a
remote signal
(2) Operator-machine communication.
The air conditioner and remote controller is provided with a temperature sensor. The remote controller on the temperature
sensor detects the default settings of room temperature. If the indoor control unit has not received remote control signal
for a long time, it will automatically switch to the air conditioner body temperature sensor.
(3) Timer function
A. Timer on
When set to start in a time by the remote controller, the air conditioner starts in the timer on condition. When
the set time is up, the air conditioner will turn on and operates in the preset conditions after receiving a signal
from the remote controller. If the air conditioner has not received a signal from the remote controller when the
set time is up, it will automatically start and operate in the preset conditions.
B. Timer off
When set to stop in a set time by the remote controller, the air conditioner will start in the timer off condition.
When the set time is up, the air conditioner will turn off after receiving a signal from the remote controller. If the
air conditioner has not received a signal from the remote controller when the set time is up, it will turn off
automatically.
C, Neither the turning on nor turning off operation will cancel the timer function.
(4) Sleep
A. In the heating, cooling or dehumidifying mode, press the "Sleep" button on the remote controller to start or
cancel the sleep function in turn, and at the same time the sleep icon on the display screen will be on or off
accordingly.
B. In the heating mode, the set temperature will decrease automatically after the sleep function is started.
C. In the cooling mode, the set temperature will rise automatically after the sleep function is started.
D. By default, the setting is to cancel the sleep function. Turning off the unit will also cancel the sleep function.
(5) Highly efficient run function (only for some remote controller)
In Cooling, Dehumidification, Fan mode, press the "HIGH POWER " to enter the refrigeration mode, set the temperature
automatically adjusting to lowest temp; the Fan speed is powerful speed; frequency is high frequency operation.
In heating mode, press the "HIGH POWER" to enter the refrigeration mode, set the temperature automatically to adjust to
highest temp.; the Fan speed is powerful speed; frequency is high frequency operation.
Mute function (only for some remote controller)
In the indoor unit operation mode, you may turn on or turn off mute function with mute key. The air conditioner will run
with mute fan speed in mute mode.
(6) Prevention cooling wind prevention mode
In the heating‑run, to prevent the indoor fan from blowing cold air, the indoor fan will stop or
warm.
(7) Blowing waste heating and waste cooling function
In the heating mode,when the air conditioner is turned off, the indoor heat exchanger temperature is still higher, so the air
conditioner will to run the waste heat.
In the cooling and dehumidification mode, after the compressor stops, indoor unit will continue to set the speed of
operation for a period of time.
(8) Dehumidifying method:
If remote control setting is in dehumidifying mode, indoor unit is forced to run at low speed (high power key or a strong
bond also maintains a low wind speed), and the outdoor unit runs according to the refrigeration mode operation.
62
OPERATION
run slowly until the coil is