Hitachi RCIM-1.0FSRE - Description Of The Optional Remote Control Functions (Pc-ARH1 E)

5 Optional functions
Optional functions through Remote control
SMGB0137 rev.0 - 05/2021
156
5.2.4 Description of the optional remote control functions (PC-ARH1E)
b1 – Removal of Heating Temperature Compensation (due to Uneven Heat Load)
This function is used when the temperature settings of the remote control switch and the suction air temperature of the
indoor unit are required to be equal.
This is useful when the thermistor at the suction side of an indoor unit is removed and installed in another place.
Setting Temperature for Room Temperature Control at Heating
Setting Condition Actual Control Temperature
00 (Standard) Remote Control Switch Setting Temperature (Indicated Value) +4ºC
01 Remote Control Switch Setting Temperature (Indicated Value)
02 Remote Control Switch Setting Temperature (Indicated Value) +2ºC
? NOTE
The setting temperature upper limit after compensation is as follows: Inverter Multi Unit: 34 ºC
b1 – Removal of heating temperature compensation
This function is used to adjust the di󰀨erence of temperature between the setting temperature of the remote control switch
and the inlet air temperature of the indoor unit.
This is useful when the inlet air thermistor is not placed inside the indoor unit or due to uneven Heat Load or for example
in standard heating mode, the suction air temperature is greater than that of the room, therefore the setting temperature
used according to the factory setting is calibrated to the indicated temperature +4 °C, but depending on the room
conditions can be necessary to compensate a smaller value.
b2 – Circulator function at heating Thermo-OFF
This function means that the fan unit remains running after the air conditioning system has stopped in heating mode to
prevent the air in the room from stratifying.
This function is useful when the air in the room is stratied (hot air accumulates at the ceiling). Air stratication may occur
if has been selected fan speed changes to LOW when the thermostat of the unit is stopped. This function prevents air
stratication in the room after stopping the air conditioning system.
This function maintains the fan speed, whether the thermostat is on or o󰀨. Hence, the air movement in the room is kept
at the same level to ensure even air distribution.
? NOTE
• If the indoor unit has an automatic louver, this function also remains active when the heating thermostat is switched o.
• Everyone has a dierent perception of coolness, heat and air ow and, therefore, this issue should be discussed with the client and
the unit set according to the results of the conversation.
b3 – Not used
b4 – Change the lter cleaning period
This function is used to modify the period during which the remote control indicates the air lter replacement. The lter
cleaning period can be changed depending on the condition of the lter.
? NOTE
• The remaining number of hours before cleaning the lter is factory-set for all indoor unit models b2=02 (1200 hours).
• For RPK-FSR(H)M models Factory-Setting is b4=00: Standard setting 200 hrs.
b5 – Locking of operation mode
This function is used when the operating mode does not have to be changed. Once the unit operating mode has been
selected, this function prevents it from being modied from the remote control.
b6 – Locking of setting temperature
This function is used when the temperature setting does not have to be changed. Once the unit temperature has been
selected, this function prevents it from being modied from the remote control.