- 21 -
KALVIS-4 (N) EN 2019.01.14
d) Check for worn door sealing parts of glass fibber, replace them if
necessary.
e) Check for ash falling through the air inlet hole in the ashtray, which
prevents full closure of the air supply valve (see Fig. 10).
a) Increase the water pressure in the system.
III. Why boiler “bleeds”, extinguishes itself, smoke gets from the boiler?
The boiler is running at too low power or there is not enough chimney
draft, so condensation builds up.
a) For less heat demand, use less fuel for burning rather than
smoldering could go on.
b) You can fully apply the smoke draft valve, thus improving the chimney
draft and reducing boiler output.
c) Use proper fuel: dry wood.
d) Check for the ash scrub lid is installed correctly (see Fig.11)
e) Check for air supply valve grate is not covered (see Fig. 9).
f) Check for when the boiler is fired no starting valve is open.
g) Check for the temperature of the return water is not too low, adjust
the mixing valve so that the return water temperature to the boiler is
not lower than 60 °C.
h) Check the chimney draft, clean the chimney, the flue pipe and the
boiler itself; make sure that contents of ash under the firegrate is not
too high.
i) Check for door sealing parts from glass fiber are not worn out,
replace them if necessary.
a) There shall be sufficient air flow into the room where the boiler is
located.
IV. Why, after starting the boiler, water pressure grows up?
After boiler reaches the nominal power, water pressure exceeds the
permissible value.
a) Expansion vessel may be too small or out of operation.
b) Water circulation may have stopped: check circulation pump for
operation; water level (pressure) in the system for sufficiency; due
deaeration of the system; check for closed valves in the system or
clogged water filters.
c) Maybe pressure was exceeded when filling the system, reduce it.
To Next Page
Loading...