Interval between blows in the supervision in grate mode. The value should not be too
high so as not to cause excessive water heating in the boiler.
Minimum airflow fan power which can be chosen by the user. It is only used to limit the
accessible scope of fan power. It is not used in algorithm of controlling the fan. It
should be possibly small to allow the fan to rotate slowly, without buzzing.
Time is measured after decrease in brightness of flame below value Flame detection.
After deducting this time the controller switches into firing up attempt. After another
failed attempts, it reports alarm: “Failed firing up attempt”.
Max temperature of the burner by which the alarm of exceeding the max. temp of
burner will be switched on.
The parameter is available only after connecting a room thermostat. The option allows
you to select a boiler room thermostat. Options to choose from:
• Off - deactivates room thermostat influence on boiler operation.
• Universal - activates room thermostat for boiler.
• ecoSTER T1…T3 - option available after connecting room panel, boiler operation
is dependant on room thermostat.
• eSTER T1…T3 - option available after connecting wireless room panel, boiler
operation is dependant on wireless room thermostat.
If the room panel is not connected, the controller works only with a standard room
thermostat (NO-NC).
Minimum preset boiler temperature which can be set in user menu and minimum temp.
which can be set automatically by controller, i.e. from night reductions etc.
Maximum preset boiler temperature which can be set in user menu and minimum
temp. which can be set automatically by controller, i.e. from night reductions etc.
Boiler cooling temperature
Temperature of boiler cooling off. Above this temperature the controller activates HUW
pump and opens mixer cycles to allow boiler cooling off. The controller activates HUW
pump if this temperature exceeds maximum value. The controller will not open mixer
cycle when Mixer support = Floor ON.
The parameter is available only after connecting a room thermostat. Options available:
• Off burner - the burner will be turned off when the room thermostat of the boiler
operates, without switching off the boiler pump,
• Off pump - the boiler pump will be turned off when the room thermostat of the
boiler operates, without switching the boiler off,
• Off all - the boiler and boiler pump will be switched off when the room thermostat
of the boiler is activated.
The parameter determines after what amount of fuel burned will be prompted to Clear
exchanger.
Description in point 12.11
Applicable to FuzzyLogic mode. It has an impact on the time necessary for the boiler to
reach the preset value and the stability of the boiler temperature. It is not
recommended to modify the parameters if the adjustment time and the stability of the
preset temperature are as required.
Parameters determines the temperature at which boiler pump is activated. It protects
the boiler against watering due to cooling off with cold water returning from installation.
Attention: Deactivating boiler pump only does not guarantee boiler protection against
watering and consequently corrosion. Additional automatics should be used, i.e. 4-way
valve or 3-way thermostatic valve.
Available after connecting HUW sensor. Prolonged feeding of HUW tank during priority
HUW deactivated may cause to overcooling of the CH installation, because boiler
pump is deactivated. Parameter boiler pump pause during feeding HUW prevents
against periodical activating boiler pump during feeding HUW tank. Boiler pump after
this time will activate on constant, programmed time of 30 sec.
Available after CH sensor connecting. It is a parameter by which it can be reduced
setting too low preset HUW temperature.
Available after connecting HUW sensor. Parameter determines to what maximum
temperature HUW container will be heated during cooling the boiler in alarm situations.
It is a very important parameter, because setting too high value of it may cause risk of
scalding with HUW. Too low value of parameter will cause that during boiler
overheating it will not be possible to cool off the boiler to the HUW tank. During design
of HUW installation, it is necessary to take into account risk of damaging the controller.
Due to breakdown of the controller water in the container can heat up to dangerous
temperature. It is necessary to use additional protection in the form of thermostatic
valves.
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