Hitachi RCI-1.0FSN3 Service Manual page 245

6 Optional functions
b4 – Pre-determined filter cleaning period change
This function is used to modify the period which the remote control indicates the air filter replacement. The filter cleaning
period can be changed depending on the condition of the filter, as shown in the table below:
N O T E
The remaining number of hours before cleaning the filter is factory-set for all indoor unit models.
for RPK units, the factory setting is 200 hours.
(*)
b5 – Fixing 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 modified from the remote control.
b6 – Fixing 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 modified from the remote control.
b7 – Fixing of cooling operation
This function is available to use refrigeration mode only and to prevent heating mode from being enabled. When this
function is selected, heating operation and the automatic COOL/HEAT operation are cancelled.
b8 – Automatic COOL/HEAT operation
This function allows the automatic change from the cooling to the heating mode for the units with the same refrigerant cycle.
N O T E
This function is not valid when the outdoor unit is an exclusive cooling model or when the function to set opera-
tions as an exclusive cooling unit is enabled.
b9 – Fixing of fan speed
Once the unit fan speed has been selected, this function prevents it from being modified from the remote control.
N O T E
When this function is enabled, the fan speed cannot be changed using the remote control.
bA – Not available
bb – Cooling temperature compensation
This function is used to obtain longer cooling periods. When this function is enabled, the air conditioning system is switched
on/off with the temperature condition below the temperature indicated on the remote control.
N O T E
The lower set temperature limit after offset is 19 °C.
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