COMBI A - Instruction Manual

17. Adjustments and

17. Adjustments and settings The boiler is delivered with pre-set values described in menus 3 and 4. All settings must only be changed by the installer or a qualified person. To gain access to the setting buttons please, open the front control panel cover P. (Fig. 42) and follow the instructions below. Fig. 42 On/Off push button Comfort button Reset push button P Fig. 43 Menu button - button + button Setting button DISPLAY 2nd digit 1st digit 3rd digit 4th digit Pressing the, comfort, reset, menu, +, -, or setting buttons will make the display light. The light will go out 30 seconds after the last button has been pressed. To gain access to the setting menus press the and buttons together for 5 seconds. (Fig. 43). Menu 1 is displayed on the 1st digit. Changing the menu : Press the Menu button (Fig. 43). The menu number is displayed for 3 seconds. Press the menu button again to change to the next Section. Setting a parameter in a section : Press the or button to change from between sections. Note : When you arrive at the last section of a menu, pressing the button will change to the the 1st section. When you are at the first section, pressing the button will change to the last section of the menu. Changing section in a menu (available only for menu 3 and 4) : Press the setting button to enter the modification mode, The 3rd and 4th digits will be flashing, press the or button to select the correct value then press the setting button to select this modification and to exit the setting mode. The 3rd and 4th digit stop flashing. Recalling the basic configuration : Select menu 3 or 4 then press the and buttons together for more than 5 seconds. The digits will flash CM for a while to indicate that the operation is completed. Clearing Menu 1 (default register) : Select menu 1 then press the and buttons together for more than 5 seconds. The digits will flash CM for a while to indicate that the operation is completed. Note : To exit from setting mode, leave the boiler for approx. 1 minute, the display will switch back to user mode. 36

ACTION CONFIGURATION DISPLAY 5 ” Menu - 1 - Default register Record of the last 10 faults Section Digit 1 Digit 2 Digit 3 and 4 Last fault occurred 1 0 code from 01 to 99 Last but one fault occurred 1 1 code from 01 to 99 x times ... 1 ... code from 01 to 99 Last fault occurred before the previous one 1 9 code from 01 to 99 Note -- is displayed if no default is recorded once Menu - 2 - Boiler conditions Indicates the conditions or the configuration of the boiler Section Digit 1 Digit 2 Digit 3 and 4 Software version of display PCB 2 0 code from 01 to 99 Software version of main PCB 2 1 code from 01 to 99 x times Flue type 2 2 4 : Condensation Room thermostat is calling for heat 2 3 0 : no 1 : yes Theoretical position of the 3 way valve 2 4 0 : DHW 1 : CH DHW flow temperature in °C 2 5 from 01 to 99 Hot water tank Temperature in °C 2 6 from 01 to 99 CH flow temperature in °C 2 7 from 01 to 99 CH return temperature in °C 2 8 from 01 to 99 Outside temperature (Flashing when negative temperature) 2 9 from 01 to 99 37