Liquid Fuel Boiler - Solarbayer PROMATIC D10 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, increased for the value of parameter S5.7
- calculated boiler temperature from slave controllers,
- calculated boiler temperature of an additional direct heating circuit.
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 switches off when the boiler
temperature exceeds the calculated boiler temperature for more than 60 % of the hystere-
sis and switches back on when the boiler temperature drops 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 lock out 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.
Due to the frost protection function, the need for heating (boiler start) can emerge for in
following casses:
- if the outdoor temperature drops below the frost protection temperature, which is set
in the menu,
- If in the night time heating interval, outdoor temperature drops below the setting of the
parameter S5.15
- If the boiler temperature, stand-pipe or the room temperature drops below 4 °C.
CONTROL OF HEAT PUMP BY SCHEMES 422, 422B, 422C AND 422D
Heat pump has 2 operation modes, depending on parameter S6.10 setting.
- Parameter S6.10=1; Heat pump is activated when there is a demand for heating.
Heat pump operates with constant temperature or with the internal control. If outdoor
temperature drops below temperature set with parameter S6.11, heat pump is switched
off.
- Parameter S6.10=2; heat pump is controlled in accordance to outdoor temperature and
maintains calculated heat accumulator temperature. Max. supply water temperature is
limited with parameter S6.13. If outdoor temperature drops below temperature set with
parameter S6.11, heat pump is switched off.
Service settings manual 52