Liquid Fuel Boiler - OEG KMS Bedienungsanleitung

LIQUID FUEL BOILER

For the required liquid boiler temperature the highest temperature from the list below is
taken:
- calculated stand-pipe temperature (MC), increased for the value of parameter S5.6,
- calculated stand-pipe temperature (DC),
- calculated d. h. w. temperature (MC), increased for the value of parameter S5.7
- calculated boiler temperature from slave controllers,
- calculated boiler temperature as a result from an additional direct heating circuit
demand.
Lower limit of the liquid boiler temperature is the minimum boiler temperature and the
upper limit is set with parameter S5.2.
Boiler operation hysteresis is set with parameter S5.3. Burner shuts down when the boiler
temperature exceeds the calculated boiler temperature for more than 60 % of the hystere-
sis and turns back on when the boiler temperature falls below for more then 40 % of the
hysteresis.
With parameter S5.3 you can set an alternative burner operation mode:
S5.3=-1, inverted boiler output operation, without use of the boiler temperature sensor,
it is used for blockade of the boiler operation, if an alternative heat source is
selected.
S5.3=0, Controlling the boiler without boiler temperature sensor,
it is used to start boilers with their own boiler controllers.
When there is no need for boiler operation, the calculated boiler temperature is 4 °C.
With parameter S5.5 you can set the boiler operation in night time.
Because of the frost protection function, the need for heating (boiler start) can emerge for
the next reasons:
- if the outdoor temperature drops below the set frost protection temperature, which is set
in the menu,
- If in the night time heating interval, the drops below the setting of the parameter S5.15
- If the boiler, stand-pipe or the room temperature drops below 4 °C.
S e r v i c e s e t t i n g s m a n u a l
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