Biomaster Boiler 15-30 Instruction Manual
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3.5. Emergency boiler shut down
In emergency situations, such as: temperature exceeding 100 degrees, cracks in
the installation components, water leaks, failures of sensors or controllers, or safety
devices, sudden rise in pressure, you should:
Turn off the controller
Remove the embers from the burner
Open all doors of the boiler
In the case of sealed system boilers, the emergency can be caused by a power
outage (stopping the pumps) or leaving the boiler door open. The central heating
installation should be protected with a safety valve set to 2.0 bars, however, in
emergency situations these measures may prove insufficient. The boiler must be
protected with a thermal safety valve which in an emergency will remove the hot
water from the boiler and refill the system with cold water from the water supply line,
cooling down the boiler and lowering the pressure (Section. 2.6) Such situations are
especially dangerous when the boiler is working in manual load mode with the
automated cycles turned off. Please remember that reaching an emergency state is
especially probable in the summer, when only domestic water is heated. Anticipating
such situations, it is worth considering to install a heat accumulator which would take
over excess heat power.
It is forbidden to pour water on hot fuel.
4. Boiler malfunction
Type of malfunction
Cause
Solution
The boiler smokes, black
liquid in the boiler chamber*
No draught
Tightly wall up the connection
between the flue and the chimney
duct
Chimney diameter too small
Expand the chimney diameter, for
example by demolishing the wall
between a ventilation duct (at least 2
m from the base of the “Moderator”),
remove flue gas turbulators.
Another boiler (for example, in
the kitchen) connected to the
same chimney
Seal the connection between the
other boiler and the chimney to
prevent sucking up of cold air.
Blocked chimney duct
Clean the chimney duct
Frequent use of wet fuel
Burn some dry fuel, remove flue gas
turbulators.
Dirty exchanger
Clean the internal surfaces of the
boiler, clean the flue gas turbulators.
