March / 2014
Page 11
CEX-O_CEX-U_Installation, Maintenance and User Instructions V1.02
Service menu
The service menu can be used for diagnostics
and to view and configure appliance settings.
Press program keys 1 and 2 simultaneously for
at least 2 seconds to enter the service menu
confirmed by the display “FL” and flashing point
(see Fig 10).
Scroll between menu items in the service menu
using the arrow up and arrow down keys.
Press program key 1 to display the value of the
currently selected menu item. The value flashes
in the display.
The values of some menu items can be dislayed
by using the arrow up and arrow down keys.
Press program key 1 to return to the menu item list.
Press program key 2 to exit the service menu and
return to the standard display.
After two minutes without any key stroke the
system automatically returns to the standard
display.
Menu item order of Service Menu:
Flow:
Flow rate (l/min)
Power:
Power consumption (kW)
Temp in:
Inlet temperature (°C)
Temp out:
Outlet temperature (°C)
Control value:
Calibration value of the control system (40 - 60)
Power limit:
Maximum power setting (kW)
Diagnostics:
Last ten diagnostic messages (see below)
Lock level:
Current lock level setting (see below)
Software version:
Installed software version
Radio channel:
Radio channel of heater and remote control
Received strength: Signal quality of remote control (10% - 100%)
Signal:
Quality of radio contact with diagnostic display
v
v
Press >2 secs
Display Flashes
1
2
4
5
7
8
9
3
6
Fig. 10
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