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on fuel quality (especially moisture), burning intensity, chimney draught and other
circumstances. It is recommended to clean boiler heat exchanger and combustion
chamber when sooth layer is up to 3 mm thick, but no rarely than 2 – 3 times per
month. When cleaning, remove service covers (
27
) (
see Fig. 1
) and open the
remaining covers and doors; remove turbulators (
19
) and carefully clean the boiler’s
internal surfaces with scrapper and brush.
In order to remove the hardened scale, it is recommended to use the chemical
cleaners.
It is recommended to clean the chimney no rarely than every year and necessarily
before start of the heating season.
Notice. Is recommended to have a annual inspection of the boiler carried out by
qualified specialist of boilers supervision.
7.7.
Frequently Asked Questions
I.
What may happen when electricity breaks down during boiler’s working
process?
If there's no forced circulation, then water might get boiled, threat of the overheat
of the boiler, there's threat of explosion of boiler or pipes, threat of being scalded.
a)
Lower intensity of burning process: close primary air valve; close fume valve
as much as you can, avoiding fume access to the premises;
b)
In case of emergency, extinguish the boiler by removing fuel out of the
boilers burning chamber (put burning fuel to the utensil with water to get as
little fume as possible accessing the premises; open windows and doors). Do
not pour water into burning chamber, water can damage the boiler completely.
c)
At winter time, if electricity failure lasts and there's threat of getting frozen,
let out the water from heating system and pipes.
II.
Why during combustion process there's outsider noises (boiling water noise),
external decorations and flue changes their color?
Boiler is working above the nominal power, circulation pump is out of the order.
a)
Check if smoke cessation and ignition valves are closed.
b)
Check if air draft regulator is set properly and it's not set for too high
temperature.
c)
Check if chimneys thrust is not to strong, half-shut fume thrust valve.
d)
Maybe there's no water circulation: check if circulation pump is in working
order; check water pressure (level) in the system; check if systems is vented
properly; check for close system valve; check if water filters are not blocked.
e)
Check out for worn out of door or lid sealing parts, replace them if needed.
III.
Why boiler weeps, the fire goes out, smoke penetrates out of the boiler?
Boilers operating power is set to low or there's not enough draught from chimney,
that's why condensate accumulates.
a)
In case of lower demand of heat, put less fuel to make sure that fuel is
burning not smoldering.
b)
Use proper fuel - dry logs.
Summary of Contents for K-2-70
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