Hitachi PC-ARF Technical Catalogue page 118

4 Individual remote controls
PC-ARF
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Motion Sensor
This function is available only when the motions sensor is equipped with the air panel.
The motion sensor detects a human activity by the change of the infrared light.
This function saves the air conditioning capacity (adjusting the set temperature, the air flow volume and the air flow direc-
tion) automatically depending on a situation.
The operation after the motion sensor detects as absence can be selected from "Running", "Stand-by" or "Stop" on the
remote control switch with the capacity saving.
N O T E
This setting is available only for the air panel with motion sensor.
C A U T I O N
• Do not use the motion sensor function when a baby or a handicapped person stays by oneself. The motion sensor may detect as
absence and the operation may be stopped in the case of staying for long time with a bit motion.
• The motion sensor detects the human activity. However, if someone is in a room with a bit motion, the motion sensor may detect as
absence.
• The motion sensor may detect as human activity if the indoor unit with the motion sensor is installed near a moving object (ex. swing
operation of a heating appliance) which is difference in temperature against atmosphere.
• In the case that the indoor units are operated by 2 remote control switches, the motion sensor setting is available only from the main
remote control switch.
• The indoor unit operation can be stopped by the motion sensor control (Not shown through the display).
• While the air conditioning capacity is saved or the operation is stopped by the motion sensor control, "Motion sensor is activated" is
displayed on LCD.
• If the function "Prohibiting operation by remote control switch" is used from the centralized controller, select the command "Running"
or "Stand-by" in "If absent" at the motion sensor control setting.
• If "Stop" is selected, the motion sensor control can not be correctly performed as follows:
- In the case that "Stop" is selected in the motion sensor control setting and "Prohibiting operation by remote control switch" (for all
items) is set by the centralized controller, the operation does not stop even if the motion sensor control function changes to the
stoppage condition.
- In the case that "Stop" is selected in the motion sensor control setting and "Prohibiting operation by remote control switch" (for part
of items) is set by the centralized controller, the indoor unit operation can not be restarted from the centralized controller although
the operation can be stopped under the stoppage condition by the motion sensor control function.
Details for motion sensor control
The motion sensor control adjusts automatically the following items depending on a situation.
• Setting Temperature: The temperature is adjusted 1 ºC or 2 ºC for saving capacity.
• Air Flow Volume: The air flow volume is adjusted to lower one volume or to "Slo" (except during the dry operation).
• Air Flow Direction: The air flow direction is adjusted to horizontal.
Descriptions for setting items
• Motion sensor setting:
- ON: The operating control function by the motion sensor is activated.
- OFF: The operating control function by the motion sensor is not activated.
(The default setting is "ON".)
If absent
•
"If absent" is set for the indoor unit operation after the motion sensor detects as absence for set time in "Check interval".
The operation can be selected from "Running", "Stand-by" or "Stop" on the remote control switch.
- Running: The operation is continued with saving the capacity after detected as an absence. If the human activity is
detected for a period of time, the normal operation is performed again.
- Stand-by: The operation mode is the fan operation at "Slo" speed. If the human activity is detected for a period of
time, the normal operation is performed again.
- Stop: The operation is stopped by the remote control switch when all the indoor units with motion sensor detect
absence which are connected with same remote control switch. If the human activity is detected for a period of time
by the stoppage, the normal operation is performed again.
(The default setting is "Running".)
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TCGB0106 rev.0 - 12/2014