Boiler Turning Off; Optimal Boiler's Temperature; Power Outage And Pump Failure - Orlanski ORLIGNO 200 Instruction Manual & Service Manual

ATTENTION!
Lack of fuel in the boiler is signaled with

5.3. Boiler turning off.

To turn off the boiler press main switch on the controller or automatically in case of lack of fuel.

5.4. Optimal boiler's temperature.

Main factor assuring trouble-free boiler operation is to keep right boiler's temperature.
Proper wood gasification process is assured when boiler's temperature is at least 85°C.
During big demand for heat it is possible that return water temperature will decrease. If return
water temperature will be more than 20°C lower than hot water from the boiler, loading chamber
may partially be cooled, that leads to drop in gasification efficiency. As a result pitch deposits on
the sides of boiler in larger amounts. To avoid this issue, boiler installation should have small water
circulation. This can be achieved through 4 way valve installation (or 3 way valve with accumulation
tank) on the hot water outlet. Four way valve works on principle of hot water mixing with return
water from heating installation. Right setting of hot and return water streams flowing through the
valve, ensures that return water to the boiler is high enough not to drastically lower temperature in
gasification chamber – in this way gasification process proceeds correctly. Temperature's difference
15-20°C does not strain boiler body, consequently prolonging boiler lifespan.

5.5. Power outage and pump failure.

During boiler operation power outage or pump failure may happen. If failure occurs during
heating season, it is necessary to stop stoking the boiler. It is forbidden to run the boiler with
opened chimney flap. Boiler operation on full draft results in its uncontrolled work that may lead
to boiler's overheating.
In case of boiler installation in forced circulation, power outage causes fan and pump turning off.
Poor heat collection from heating installation (radiators) may also leads to boiler's overheating.
W celu uniknięcia problemu przegrzania kotła zalecane jest zainstalowanie dodatkowego
odbiornika ciepła w postaci podgrzewacza wody użytkowej.
In order to avoid boiler overheating it is recommended to install additional heat collector ex. water
heater, which ensures minimal power output collection ex. 5kW for boiler 25 kW. Thanks to that
boiler overheating is avoided.
ATTENTION!
In order to secure boiler and electric installation against sudden rise of voltage in the
grid, it is recommended to use surge protectors like power strips.
diode.
9