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draught (it might occur smoke
from blowing fan or the lover
door
Sudden
installation valves closed
temperature
and pressure
pressure vessel frozen
rise
so called boiler's sweating",
Water licking
this is natural process caused
out of boiler
by temperature difference in
boiler
Inappropriate
red, smoking fire indicating to
flame picture
low air supply
on the
Pale, white fire indicates to
combustion
high air supply
chamber
very shallow fire in retort
indicating, that percentage of
coal
comparing to the amount of air
delivered
discarding
completely burned off pieces of
coal
In order to ensure the failure-free and safe operation (to maximum extent) the
controller of boiler is provided with many protection functions. If faulty status is
discovered, the alarm is launched (acoustic signal), and a message is shown on
display (depending on controller version).
THERMAL PROTECTION
The controller is equipped with safety temperature limiter, preserving the boiler against
(boiling water in installation), if the controller is damaged. Temperature
overheating
limiter makes up mechanical protection measure, which is bimetallic sensor (placed
at the boiler water temperature sensor) cutting off power supply to blow-in fan and
fuel feeder, if temperature is higher than 90° C (pump still working).
TEMEPERATURE PROTECTION
The controller is equipped with additional temperature protection (electronic
one), for the case of bimetallic sensor is faulty. If temperature of 95° C is
volume
is
too
glowing
7. PROTECTION MEANS
open the valves
heat the pressure vessel
during boiler's start-up and after
each standby "heat the boiler" e.g.
burn it up to 70° C and keep that
temperature for several hours
provide more air
provide less air
provide more coal or less air
reducing blow-in power
low
not
reduce the set of fuel supply by 5
– 10% or increase blow in power.
Wait 20-30 minutes until such
changes come to effect, what
should be deflected in change of
fire state
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