BRC2E52C7 / BRC3E52C7 Operation manual
4P368042-1 - 2014.02
22
Basic Operation Method
Precautions for Setting Cooling/Heating Selection Eligibility
• The cooling/heating selection eligibility needs to be set for a single remote controller in the
following case.
A number of indoor units are
connected to a single outdoor unit.
Set the cooling/heating/fan selection
eligibility in one of the remote controllers.
A single BS box is connected to a
number of indoor units.
Set the cooling/heating/auto/fan selection
eligibility in one of the remote controllers.
BS (Branch Selection) box:
The BS box is used for cooling or
heating mode selection.
Indoor unitIndoor unit
(Heat Recovery system)(Heat pump system)
Key Lock
Operation Method
Disable the use of all buttons.
1
28°C
• Press the Menu/Enter button for at least
4 seconds. (During backlight lit)
2
Buttons have been locked.
Press the menu button for
4 seconds to release.
Return
• All buttons are disabled when the keys are locked.
• When one of the buttons is pressed, the message
on the left is displayed.
3
• To cancel the key lock, continue pressing the
Menu/Enter button for at least 4 seconds. (During
backlight lit)
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