10 Starting up the system
Installer and user reference guide
11
BRBRBRC1HHDAK
Human Comfort Interface
4P534402-1 – 2018.06
9.5.2
To open the user interface
1
Insert a flat-head screwdriver in one of the bottom closing
mechanisms and slowly twist it.
10
Starting up the system
The user interface gets its power from the indoor unit. It will start up
as soon as it is connected. For the user interface to be operable,
therefore make sure the indoor unit is powered on.
Before the user interface is ready for operation, it will synchronise
with the main user interface and go through the following start-up
sequence:
Start-up sequence
1
User interface booting up
2
User interface synchronising with the main user interface
3
User interface ready for operation
11
User interface: Overview
11.1
Buttons
+
-
c
b d
a
a
ON/OFF
▪ When space heating/cooling and/or domestic hot water
operation is OFF, press to turn it ON.
▪ When space heating/cooling and/or domestic hot water
operation is ON, press to turn it OFF.
b
CYCLE/ENTER/ACTIVATE /CONFIRM
▪ From the home screen, short press to cycle through the
operation screens.
▪ From the home screen, long press to go to the main menu.
▪ In the main menu, short press to enter one of the menus.
▪ In any of the menus, activate/confirm a function, value, or
setting.
c
ACTIVATE/CYCLE/ADJUST
▪ On the room temperature/domestic hot water operation
screen, activate the setpoint screen.
▪ In the main menu, cycle left.
▪ In any of the menus/operation screens, adjust a function,
value, or setting (default: decrease).
d
ACTIVATE/CYCLE/ADJUST
▪ On the room temperature/domestic hot water operation
screen, activate the setpoint screen.
▪ In the main menu, cycle right.
▪ In any of the menus/operation screens, adjust a function,
value, or setting (default: increase).
11.2
Home screen
The home screen displays the actual room temperature, and all
kinds of information through status icons. After a period of operation
inactivity the user interface will always revert to the home screen.
INFORMATION
The user interface is equipped with a power saving
function that causes the screen to darken after a period of
inactivity. To make the screen light up again, press one of
the buttons.
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