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Sensors that are not used for control can be used for temperature reading in a separate menu.
For boiler output max. 45 kW.
When firing up, the boiler quickly reaches its working temperature. The charging pump starts when the boiler sensor is hot. Hot water from the boiler top is mixed with cold water from the bottom of the tank to approximately 60°C in the Laddomat 41-200 valve, and into the bottom of the boiler to be re-heated. No risk of condensation which can cause corrosion due to low bottom temperature. The tank top is supplied with hot water at a low flow, providing efficient separation of the heat in the tank.
When firing stops, the boiler cools and the charging pump is stopped when the boiler sensor is cold. When the boiler has cooled so that the boiler sensor is less than the set temperature, the discharging pump starts, and the now cold water at the bottom of the boiler is pumped over to the bottom of the tank. At the same time, hot water is sent to the top of the boiler. This takes place at a low flow thanks to that the Laddomat 41-200 valve is equipped with a strong choke. Efficient separation of the heat is thereby achieved both in the tank and the boiler. Discharging can only be started if the tank is warmer than the boiler.
Discharging can be interrupted at the desired temperature at the tank top sensor and, the additional heating, if any, may then be started in addition.
The burner is started by the tank top sensor. It continues until the sensor in the bottom of the tank exceeds the set temperature. When the burner stops, the tank empties little by little. When it is completely empty and the temperature at the sensor at the top of the tank is less than the set temperature, the burner re-starts. The charging pump can either start when the burner starts, or when the boiler exceeds the set temperature.