Table of Contents
Advertisement
9.2.1
9.2.2
n
9.2.3
82
Hysteresis
The water heater does not start immediately when the water temperature is below the
temperature setpoint. To prevent that the water heater switches on and off too often,
there is a margin; the hysteresis.
Call up the menu to set the hysteresis as follows:
•
[
]: HYSTERESIS DOWN
Please refer to the table (see section 12.1) for the regulation interval and settings for each
water heater.
Display the error history
Display the error history as follows:
•
[
]: ERROR HISTORY
The controller will display an overview of "Blocking errors" and "Lock out errors". In both
cases, note that the 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 [ENTER] is pressed, the "Lock out errors" are then displayed.
The figure shows an example of "Blocking errors". In this case, the text ERROR HISTORY is
followed by (B).
The figure shows an example of "Lock out errors". In this case, the text ERROR HISTORY is
followed by (L).
Note
For an overview of all errors and the possible causes, please refer to the relevant chapter
(see section 11.1).
Display the water heater history
The water heater history sub-menu is used to display the burning hours, the number of
ignitions, the number of flame errors and the number of ignition errors.
Call up the menu for displaying the water heater history as follows:
•
[
]: APPLIANCE HISTORY
The figure shows an example.
Installation, Maintenance and Service part
Advertisement
Table of Contents
