Hitachi RCI-1.0FSR Service Manual page 149

5 Optional functions
Optional functions through Remote control
PA – Daylight saving time
This function is used to set the amount of adjustment when daylight saving time is applied.
Pb – Not used
PC – Not used
q1 – Not used
q2 – Not used
q3 – Not used
q4 – Not used
q5 – Not used
q6 – Not used
q7 – Not used
q8 – Not used
q9 – Not used
qA – Not used
qb – Operation mode with setback
This function is used to select the operation modes in which setback operation is activated to keep a minimum comfort in
the room while it is not occupied.
qC – Temperature differential for the setback function
This function is used to select the temperature differential for the setback function.
Target temperatures for cooling and heating operation are determined versus a temperature to start setback operation
(rE, rF).
Target temperature calculation:
Target temperature in cooling mode: rF - qC (°C)
Target temperature in heating mode: rE + qC (°C)
Temp. to start setback operation in cooling mode
Temperature to start setback operation in cooling mode
Target temp. in setback cooling operation
Target temperature in setback cooling operation
Wired Controller setpoint in cooling normal operation Wired controller setpoint in cooling normal operation
Wired controller setpoint in heating normal operation
Wired Controller setpoint in heating normal operation
Target temp. in setback heating operation Target temperature in setback heating operation
Temp. to start setback operation in heating mode
Temperature to start setback operation in heating mode
Setback operation runs as room temperature reaches the specified temperature to start, and stops when the target
temperature is reached.
A target temperature higher than the normal operation temperature shall be selected for cooling mode.
A target temperature lower than the normal operation temperature shall be selected for heating mode.
139 SMGB0137 rev.0 - 05/2021
(rF)
(rF － qC)
(rE ＋ qC)
(rE)
Run
Run
Cooling
Cooling
Stop
Stop
Room temperature
room temperature
Heating
Heating
5