is
12 Service program
12.1 Introduction
The service program is used by the installation engineer or service and maintenance engineer for:
•Setting the hysteresis;
•Displaying the error history;
•Displaying the appliance history;
•Display the selected appliance;
•Switching the pump on or off;
•Setting the service interval;
•Setting the display contrast;
•Setting the display backlight time;
•Setting the display scroll speed.
SERVICE MENU
»HYSTERESE
^HISTORY OF ERRORS È APPLIANCE HISTORY
SELECT APPLIANCE
PUMP RELAY
SERVICE INTERVAL
CONTRAST DISPLAY
TIME BACKLIGHT
SCROLLSPEED
These
Note
The notation convention for the service menu is identical to that of the main menu (11.1 "Notational convention for
difference is, you use to bring up the service program, instead of which brings up the main menu.
12.2 Setting the hysteresis
If the preset temperature (SETPOINT) is higher than the current water temperature, then the appliance might not immediately start the heating
cycle (9.3 "The appliance's heating cycle"). To prevent excessively frequent switching on and off, there is a heating margin. We refer to this margin as the
hysteresis. The standard setting for this margin is 2°C. The heating cycle starts if the water temperature drops to 2°C below the SETPOINT and ends when the water reaches 2°C above the SETPOINT.
HYSTERESE UP »3ÉC
Set the hysteresis via:
•: HYSTERESE UP
The figure shows an example
Set the hysteresis via:
•: HYSTERESE DOWN
12.3Displaying the error history
Display the error history as follows:
• : HISTORY OF ERRORS
The controller will display an overview of "Blocking errors" and "Lock out errors". In both cases, the electronic controller reserves 15 lines for the last 15 error messages. If there are fewer than 15 error messages, an ellipsis (...) is displayed. The display
first shows the "Blocking errors". When is pressed, the "Lock out errors" are then displayed.
The figure shows an example of "Blocking errors". In this case, the text HISTORY OF ERRORS is followed by (B).
HISTORY OF ERRORS(B)
S04 SENSOR ERROR
F06 IONIZATION
È CO2 50 HZ ERROR
The figure shows an example of "Lock out errors". In this case, the text HISTORY OF ERRORS is followed by (L).
HISTORY OF ERRORS(L) F02 FAN
F07 FLAME ERROR È ...
Note
For an overview of all errors and the possible causes, please refer to the relevant
chapter (13 "Troubleshooting").
Instruction manual BFC | 65 |