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Instructions for the installer
4.11 - SUMMER OPERATION
The use of the boiler in summer season, only for
the production of domestic hot water, is not ad-
vised, unless you follow these rules meticulously:
1) Use very dry wood
2) Do not load the boiler with too much wood,
load the boiler partially, 2 or 3 times per day
according to need.
Important.
It is absolutely wrong to load the boiler comple-
tely so as to gain very long working periods (for
example 24 hours). Doing so the boiler (when the
fan is OFF) will produce a lot of acid condensate
and corrode the internal walls of the fire wood
storage room.
4.10 - THERMOSTAT ADJUSTMENT
WOOD FIRED BOILER
The boiler’s adjustment thermostat must be set to
the desired temperature (the adjustment range,
limited by stoppers that must not be removed,
varies from 75° to 85°C).
To adjust the boiler’s flow temperature to the
heating system it is necessary to foresee the installation of a 3
or 4 way mixing valve.
If this mixing valve is not installed the guarantee will be void.
The manual reset safety thermostat, pos. 31, complies to the
regulations in force.
At the start-up stage check if it has to be reset.
To do this unscrew the plastic protecting cap and press the reset
button; then replace the plastic cap.
If the boiler safety’s thermostat, pos. 31, intervenes frequently,
reduce the setting temperature of the working thermostat (pos.
32 on the control panel).
If this problem is repeated, inform the local After Sales Service.
After every air adjustment , wait 5 to 10 minutes before making a
new adjustment. Once the best adjustment has been established,
at the end of the day check that the surfaces of the combustion
chamber and the door insulation are of a white colour.
In the ash deposited in the cradle there must be only a few
unburnt embers. If the primary air is in excess, in the ash there
will be embers and small pieces of coal, the flame will burn fast,
dry, have a cold colour and be noisier, and the output will be
excessive (paragraph 6.7).
If the primary air is insufficient the flame will be slow, small, it
will not touch the lower cradle and will drag little ash and the
output will be insufficient.
If the flame is a dark orange colour, the secondary air is insuffici-
ent and the surfaces of the combustion chamber will not be of a
white colour; if it is small and blue there is too much secondary air.
Always open slowly the upper loading door and the internal
antismoke flap .
If, in despite of these precautions, some blow back will occur,
it will be necessary to use bigger logs of wood, with a higher
moisture content, and to check that the boiler does not stop for
a long time (reduce the primary air - paragraph 6.7) and make
sure that the possible distortion of the cast iron fire bars or the
modification of the stainless steel grates or that the presence
of extraneous bodies (nails, metallic pieces) has not obstructed
the refractory main stone slot.
