Controller Display (Display window & button area)
Display Area
：
In normal working mode: display 1 shows a parameter code, display 2 shows this code
temperature value.
In parameter setting mode: display 1 shows parameter code, display 2 shows this parameter
value.
Menus area
：
Icon
Meaning
Function
Query/view
Actual values of all temperature
Warning
Existence of warning, and the latest 10 warnings
Alarm
Existence of alarm and the latest 20 alarms
Parameters
Set parameters and values (see also Menu Tree)
Operating buttons
Button
Name
Operation
<Esc>
In Menu /parameter setting mode, press it to return to the
previous menu level, or to cancel the value entered
<Enter>
Press down it for more than 2 seconds and release it to enter the
Menu mode when unit is at stop mode (both A/C and hot water
switch are OFF)
In Menu/parameter setting mode, press it to confirm the selected
menu level, or the value entered
Press it to acknowledge/reset warnings and alarms
<Plus>
Press it for 2 seconds to activate the System Mode in stop mode
Or, press it to select the menu level, or to increase the value in
Menu/parameter setting mode
<Minus>
Press it to select the menu level, or to decrease the value in
Menu/parameter setting mode
Controller
