Hitachi RCI-1.0FSR Service Manual page 171

5 Optional functions
Optional functions through Remote control
E8 – Fan operation control at heating Thermo-OFF
This function is useful to avoid the perception of cold draughts by stopping the indoor fan speed with the heating Thermo-
OFF. These functions are only available when using the remote sensor (THM-R2AE).
THM-R2AE Remote temperature sensor (connected to the THM4 port on the IU PCB) is required.
This function stops the fan to prevent cold draughts.
The Remote Sensor shall be installed in a proper place for the correct detection of room temperature.
Indoor unit Operation
(Heat mode)
PC-ARFP1E
Tset+1ºC
Tset-1ºC
HEAT Thermo-ON
Fan Operation
?
N O T E
• These functions are only available when using the Remote Sensor (THM-R2AE)
• NOTE When using E8 function:
- "C8=00" : this setting is not permitted
- "C8=02" : this setting is not recommended since it may cause that comfort conditions are never reached (C8 set at 02 means that
unit control is carried out with the average value of the Remote Sensor and the air inlet sensor of the indoor unit)
• In case that Automatic louver is set, the louver will keep operating in both Thermo-ON and Thermo-OFF conditions
Eg – Not used
EA – Not used
Eb – Fan operation control at cooling Thermo-OFF
This function reduces the unit fan speed to reduce the spreading of smells and humidity.
EC – Forced Thermo-ON stoppage at cooling operation
This function is used to force Thermo-ON during 6 minutes when stopping in cooling operation. It is effective for avoiding
unpleasant smells, as the heat exchanger remains clean, e.g. it is rinsed with drainage water.
Ed – Not used
EE – Automatic fan speed control
This function limits indoor fan speed when room temperature is close to setting temperature.
• When EE: Automatic indoor fan speed mode is set to "01: Enabled" in the function selection of the remote control,
operation is carried out in automatic indoor fan speed mode.
• When setting fan speed is set as to "Auto" with the remote control, operation is carried out in automatic indoor fan
speed mode with "High wind" as setting fan speed.
161 SMGB0137 rev.0 - 05/2021
ON
Tset
OFF
Fan Stop in Heating Thermo-Off even at start-up
TH-OFF conditions
TH-ON conditions
(Compressor ON)
ON
OFF
Fan Stop in Thermo-Off after unit start-up
5