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16 | General specification data
7.2
Calling up the service level
Access to the Service level is password protected. The
Service level is only intended for heating contractors.
Unauthorised access to the service level invalidates your
warranty.
B Press buttons Display, Heating circuit and Temp simultaneously and
release.
AUT
3
2
Fig. 17 Calling up the service level
[1]
Temperature key
[2]
Display key
[3]
Heating circuit key
The service level is enabled and the display shows:
SERVICE LEVEL
Gen. Parameters
Fig. 18 Service level
7.2.1 Control system "Press and turn"
The control unit is controlled by pushing the buttons or turning the rotary
dial.
The Service level is split over several main menu levels. If the last line is
left blank (without value entry), there are further submenus connected
to the main menu selected.
7.2.2 Calling up main menus
The rotary dial is used to scroll through the main menu. The main menus
are structured as a loop and recommence after the last main menu.
6 720 802 836 (2012/05)
• GENERAL PARAM.
• Module selection
• ...
• GENERAL PARAM.
7.2.3 Calling up submenus
B Turn the rotary dial until the main menu containing the submenu is
highlighted.
B Press button Display.
The submenu is shown.
B Turn the rotary dial to access all submenus of the main menu.
7.3
Calling up and modifying settings
B Calling up the service level (
GENERAL PARAM. appears as the first main menu.
B Press Display to call up a submenu.
The display shows the selected submenu.
B Press and hold Display.
B Turn the rotary dial to the required value.
The display shows the set value.
B Release Display to save your input.
B Press Back to return to the next higher level.
To return to the standard display:
1
B Press Back several times.
6 720 803 703-18.1T
8
General specification data
B Call up the service level.
GENERAL PARAM. appears as the first main menu.
B Press Display to call up a submenu.
B Turn the rotary dial until the required submenu is shown.
Turn the rotary dial to scroll through the following submenus:
• Minimum outside temperature
• Type of building
• Summer/wintertime changeover
6 720 802 836-19.1TL
• Remote adjust.
• Amount of heat
• Manual fault message control
• Automatic maint. message
B Press button Display to call up a submenu.
The display shows the selected submenu, and settings can be made.
The menus displayed on the programming unit of the
control unit depend on which modules are fitted and on
their settings.
chapter 7.2, page 16).
The control unit automatically reverts to the standard
display if no key is pressed for some time or if the flap is
shut.
In main menu GENERAL PARAM. values can be adjusted
for the submenus listed above and the building
characteristics. The following pages explain how to
adjust values relating to the submenus.
CFB 840
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