F1
F2
F3
F4
7
Customising Settings for your Home
4
To change the settings of your heating system please use the main controller lo-
cated on the front panel of the cylinder unit or hydrobox. The following is a guide
to viewing the main settings. Should you require more information please contact
your installer or local Mitsubishi dealer.
Main Controller
<Main controller parts>
letter
name
Function
A
Screen
Screen in which all information is displayed
B
Menu
Access to system settings for initial set up and
modifications.
C
Back
Return to previous menu.
D
Confirm
Used to select or save. (Enter key)
E
Power/Holiday
If system is switched off pressing once will turn sys-
tem on. Pressing again when system is switched on
will enable Holiday Mode. Holding the button down
for 3 secs will turn the system off. (
*1
)
F-4
Function keys
Used to scroll through menu and adjust settings.
Function is determined by the menu screen visible
on screen A.
*1
When the system is switched off or the power supply is disconnected, the
cylinder protection functions (e.g. freeze stat. function) will NOT operate.
Please beware that without these safety functions in operation the cylinder
may be damaged.
<Main screen icons>
icon
description
Legionella
prevention
When this icon is displayed ‘Legionella prevention
mode’ is active.
2
Heat pump
When this icon is displayed the ‘Heat pump’ is in
use.
3
Electric heater
When this icon is displayed the ‘Electric heaters’ are
in use.
4
Target
temperature
Target flow temperature
Target room temperature
Compensation curve
5
OPTION
Pressing the function button below this icon will dis-
play the option screen.
6
+
Increase desired temperature.
7
-
Decrease desired temperature.
8
Information
Pressing the function button below this icon displays
the information screen.
9
Space heating
mode
Heating mode
0
DHW mode
Normal or ECO mode
Holiday mode
When this icon is displayed ‘Holiday mode’ activated.
2
Timer
Prohibited
Stand-by
Stop
Operating
b
C
d
e
a
8
7
6
5
12
11
1
3
2
10
9
4
