Kostrzewa Mini Bio Luxury 12kW Manual De Uso página 66

9. Boiler start-up, operation and stopping, including emergency stop
66
9.5 Long boiler downtime and emergency stop
In case of long downtime:
• press the main switch, disconnect the boiler pump, the circulating pump
and the burner
• disconnect the power supply
CAUTION!
FREEZE PROTECTION FUNCTION IS NOT WORKING WITH
DISCONNECTED POWER SUPPLY.
• close all valves
• drain the boiler and the heating system via drain valve; open all cut-off,
control and vent valves to avoid freezing
• bottom door must be open to avoid condensation
The emergency stop procedure is performed when the boiler condition or any
auxiliary device may cause boiler damage or hazard to the personnel.
CAUTION!
RAPID BOILER COOLING MAY INCREASE THE EXTENT OF DAMAGE.
Leader in pellet boilers
Emergency stop may be caused by:
• no safety valve operation at exceeded allowable pressure
• pressure section leakage
• pressure section deformation
• boiler room or auxiliary equipment explosion or fire
• drain valve leakage
• safety or control device failure
• pressure gauge failure
• circulating pump failure
• flue gas explosion
• pressure section fitting or welded joint leakage
• drain pipe blockage
• auxiliary equipment failure
• other faults that cannot be removed during boiler operation due to safety
or technical reasons
Emergency procedure:
• stop the boiler immediately (use the main power switch outside the
boiler room, if required)
• use suitable fire-fighting measures (extinguishers) in case of a fire
Mini Bio Luxury 12; 21kW User Manual – EN 10.17